Re: [Dorset] Help with running Appimage please
Hi Peter, > > > Alter the menu item to run a simple, non-AppImage, graphical > > > program, e.g. /usr/bin/xclock. If that works, add the -digital > > > argument to learn if arguments can be given. > > Ran Ralphs suggestion for xclock fine, Good. Including the -digital argument as a second test? > > > > the path in the menu item is > > > > "/usr/local/bin/arduino-ide_2.3.3.Appimage --no-sandbox" and > > > > when i tried to start it I see an error message that it is not > > > > found. > > Browsed to usr/local/bin/ and ran the program from terminal and it > worked, albeit with some errors that i ignored. > > peterm@peterm-kubuntu:/usr/local/bin$ arduino-ide_2.3.3.AppImage --no-sandbox > Arduino IDE 2.3.3 Don't change directory to /usr/local/bin as the menu item probably isn't doing that. At the shell prompt, do what you're asking the menu item to do: cd /usr/local/bin/arduino-ide_2.3.3.Appimage > > > Is the whole string treated as the path. Try using > > > "/usr/local/bin/arduino-ide_2.3.3.Appimage" instead just to see if > > > it starts, even if it later fails because of the sandbox's > > > constraints. > > > > > > Is the /usr/local/bin/arduino-ide_2.3.3.Appimage file readable and > > > executable? ‘chmod a+rx > > > /usr/local/bin/arduino-ide_2.3.3.Appimage’. These are unanswered. That ‘arduino-ide_2.3.3.AppImage --no-sandbox’ worked when the current directory was /usr/local/bin doesn't mean the arduino-ide_2.3.3.AppImage which was run was the one in that directory. Perhaps you've another elsewhere. What gets run depends on your PATH. What's the output of: cd /usr/local/bin echo $PATH type arduino-ide_2.3.3.AppImage stat arduino-ide_2.3.3.AppImage Have you a text file .xsession-errors in your home directory which grows over time? You could ‘tail -f .xsession-errors’ to watch it and run the broken menu item to see if an error appears. Really, we don't know what this menu editor is doing. Presumably, creating a FreeDesktop file under your home directory somewhere containing the definition. ~/.config/menus? Recent configuration files would probably be at the top of the list: cd find .??* -type f -printf '%T@ %Tc %p\n' | sort -nr | less -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-11-12 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Help with running Appimage please
Hi Peter, > the path in the menu item is > "/usr/local/bin/arduino-ide_2.3.3.Appimage --no-sandbox" and when > i tried to start it I see an error message that it is not found. I don't use menus, but some ideas... Is the whole string treated as the path. Try using "/usr/local/bin/arduino-ide_2.3.3.Appimage" instead just to see if it starts, even if it later fails because of the sandbox's constraints. Is the /usr/local/bin/arduino-ide_2.3.3.Appimage file readable and executable? ‘chmod a+rx /usr/local/bin/arduino-ide_2.3.3.Appimage’. Alter the menu item to run a simple, non-AppImage, graphical program, e.g. /usr/bin/xclock. If that works, add the -digital argument to learn if arguments can be given. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-11-12 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Can someone confirm that my password conforms to the regular expression?
Hi Terry, > > n4abrjFnNEmBja4TqB64M4AQLMQ47MT34 > > :-) Very memorable. :-) I don't think a password for a ‘trash’ site should be memorable, nor have a theme with a per-site variation as the variation can probably be spotted and adapted to be tried on thousands of sites by a bot, e.g. ‘correct horse youtube staple’. GCHQ's advice is to use a password manager. https://www.ncsc.gov.uk/collection/passwords/updating-your-approach#tip4-password-collection One list is https://wiki.archlinux.org/title/List_of_applications/Security#Password_managers -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-11-12 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Can someone confirm that my password conforms to the regular expression?
Hi Terry, > > > but which lines reject the words Rocks, May or Sucks? > > > > Line 34. > > I can see that 'May' appears in that line, but where is Rocks or > Sucks? It isn't there. I gave ‘Theresa May Sucks’ as an example of a password which would be blacklisted. > > > Are there separate lines to cover Caesar, Augustus or Theresa? > > > > Line 35. > > I can't see any of those words in line 35. Are you saying that any > part of those words will match? No, I'm saying ‘Augustus’ would be matched by the month of ‘august’. > > The regexp is a blacklist of what sequences of characters mustn't > > occur anywhere in the password. It doesn't make use of word > > boundaries, which could be considered another bug. > > Yes. I understand that, but any of those words concatenated together > with other unrelated words would be Quite hard to detect. It blacklists the character sequence ‘august’ without caring what other characters it catenates with, e.g. ‘us’. > > > So most people would give up and use something simple like > > > 'mypassword'. > > > > > > That should work except this regexp is probably augmented by other > > > checks like a minimum length. > > They don't mention that. (Thunderbird's quoting went awry there. My text has three ‘>’ instead of two.) They said: There is a problem * Password must comply with regex: The failure triggered an error message about the failure. It makes no mention whether there are other checks. The regexp does not blacklist the passwords ‘’, ‘ ’, or ‘x’. Here's a password which isn't blacklisted. And it's probably long enough. If it works, then you can hopefully change it later. n4abrjFnNEmBja4TqB64M4AQLMQ47MT34 -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-11-12 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Can someone confirm that my password conforms to the regular expression?
Hi Terry, > > Neither ‘Caesar Augustus Rocks’, or ‘Theresa May Sucks’ are accepted > > despite being ‘valid dictionary words’. > > OK. I can see that Proper nouns may not be acceptable Oh, they're fine as line 2 ignores case. > but which lines reject the words Rocks, May or Sucks? Line 34. > Are there separate lines to cover Caesar, Augustus or Theresa? Line 35. > 2. Create a new password, avoiding the words that the regex is > currently rejecting. The regexp is a blacklist of what sequences of characters mustn't occur anywhere in the password. It doesn't make use of word boundaries, which could be considered another bug. > (Degree in Computer Science needed here.) No, just an understanding of regular languages; level 3, the lowest, in Chomsky's hierarchy of grammars. Natural languages, like English, are the highest, level 0, and you understand those. Most computer languages are level 2. Or an understanding of finite automata. https://en.wikipedia.org/wiki/Chomsky_hierarchy Strictly speaking, regexps have broken free of regular languages with some modern features, but the underlying understanding of them can stick to regular languages. I really should write a ‘man down the pub’s guide to regular expressions for the Internet. As Stephen suggested, I'm not sure if his email reached the list, use something like https://regex101.com, paste the original regexp, select flavour ‘Java 8’, and experiment with passwords. > 'Cyberattacks rely on human error and weak passwords. The length of > a password makes it stronger. Using a variety of characters is not > so important. Using a long password, also called a passphrase, is > more secure than passwords even if they use no special characters at > all. An example is “orangemonkeyjumps”.' > > Clearly they are not rejecting concatenated words that omit spaces, The regexp knows not of words, and doesn't blacklist spaces. > and they do not reject the use of numbers or chars like '!'. Correct. > So most people would give up and use something simple like > 'mypassword'. That should work except this regexp is probably augmented by other checks like a minimum length. ‘correct horse battery staple’. https://xkcd.com/936/ -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-11-12 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Can someone confirm that my password conforms to the regular expression?
Hi Terry, > > It depends on the words. > > There's nothing unusual about the words; they are valid dictionary > words, that each have their first letters capitalised. Neither ‘Caesar Augustus Rocks’, or ‘Theresa May Sucks’ are accepted despite being ‘valid dictionary words’. > So, it is likely that the chars in my password comply with the regex, No, else you wouldn't get the error. > and the problem is simply a bug parsing it. The regexp has errors in that it doesn't do the author's intent, but there's no bug in the execution of it. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-11-12 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Next Online Meeting - One Week Tonight
Hi, Terry wrote: > The next online meeting is one week tonight at 8pm on > Tuesday 2024-10-01. ... > Next meeting: Online, Jitsi, Tuesday, 2024-11-12 20:00 The signature has the right date. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-11-12 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Can someone confirm that my password conforms to the regular expression?
Hi Terry,
>
> ^(?i)(?!.*(abcdefghijklmn|abcdefghijklm|abcdefghijkl|abcdefghijk|abcdefghij|abcdefghi|abcdefgh|abcdefg|abcdef|abcde|abcd|bcdefghijklmno|cdefghijklmnop|defghijklmnopq|efghijklmnopqu|fghijklmnopqur|ghijklmnopqurs|hijklmnopqurst|ijklmnopqurstv|klmnopqurstvw|lmnopqurstvwx|mnopqurstvwxy|nopqurstvwxyz|1234|2345|3456|4567|5678|6789|||||||||||||m|n|||||||||||||||||\$\$\$\$||\^\^\^\^||\*\*\*\*||||||||\.\.\.\.||\/\/\/\/|\?\?\?\?||||||||||||Dorset|spring|summer|autumn|winter|monday|tuesday|wednesday|thursday|friday|saturday|sunday|january|february|march|april|may|june|july|august|september|october|november|december)|([a-z])\1{2}).*$
...
> My password consists of three words followed by a year and an
> exclamation mark (no spaces) and I reckon that complies with the
> above. Does anyone disagree?
It depends on the words.
I've laid out the regexp in ‘verbose’ style to make it easier to see its
structure. I've added line numbers for reference.
1 ^
2 (?i)
3 (?!
4 .* (
5 abcdefghijklmn | abcdefghijklm | abcdefghijkl | abcdefghijk |
6 abcdefghij | abcdefghi | abcdefgh | abcdefg | abcdef |
7 abcde | abcd |
8 bcdefghijklmno |
9 cdefghijklmnop |
10 defghijklmnopq |
11 efghijklmnopqu |
12 fghijklmnopqur |
13 ghijklmnopqurs |
14 hijklmnopqurst |
15 ijklmnopqurstv |
16 klmnopqurstvw |
17 lmnopqurstvwx |
18 mnopqurstvwxy |
19 nopqurstvwxyz |
20 1234 | 2345 | 3456 | 4567 | 5678 | 6789 |
21 | | | | | | | |
22 | | | | m | n | |
23 | | | | | | | |
24 | | | |
25 | | | \$\$\$\$ | | \^\^\^\^ | |
26 \*\*\*\* | | | | | | |
27 | \.\.\.\. | | \/\/\/\/ | \?\?\?\? | |
28 | | | | |
29 | | | | |
30 Dorset |
31 spring | summer | autumn | winter |
32 monday | tuesday | wednesday | thursday |
33 friday | saturday | sunday |
34 january | february | march | april | may | june |
35 july | august | september | october | november | december
36 ) |
37 ([a-z])\1{2}
38 )
39 .*
40 $
It's poorly written.
Lines of interest:
1. Match start of the password.
2. Case insensitive from here on.
3. Do not match...
4. Zero or more characters, i.e. anything, followed by...
5-7. Four to fourteen characters from the start of the alphabet.
8-10. Fourteen characters sliding through the alphabet starting at
‘b’, ‘c’, and ‘d’ given line 5 has already covered starting
with ‘a’.
11. Bug: ends with ‘u’ rather than ‘r’; someone with poor English
who learnt that ‘q’ is always followed by ‘u’?
12-15. The ‘qu’ persists, with ‘tv’ appearing; ‘u’ has already handled.
16. Bug: starting with ‘j’ has been missed, shortening the match to
thirteen characters.
17-19. The two bugs continue, ‘qu’ and thirteen long.
20. A run of four digits within 1-9; 0 is not tested, i.e. ‘0123’
and ‘7890’.
21-24. The same letter repeated four times. Bug: ‘u’ appears twice,
after ‘q’ and ‘t’.
25-27. The same punctuation repeated four times. Bug: line 27 lacks
a ‘|’, meaning ‘alternately’, in ‘’ so it matches those
eight characters. Bug: various punctuation missed, e.g. ‘[’.
28-29. The same digit repeated four times. Bug: lines 21-29 could be
written as ‘[[:print:]]{4}’ to cover all printing characters,
including space. This still allows non-printing characters if
they can be entered.
36. Alternately to lines 4-37...
37. Various letters followed twice by what matched the group
starting on line 4. Bug: that could couldn't have matched else this
alternative wouldn't be matching; the group could be started
with ‘(?:’ so it isn't a capturing group. Which letters and
whether accented versions are included depends on how Java will
handle the locale; I don't know Java. Bug: the overall intent
is unclear; perhaps two adjacent pairs, e.g. ‘4422’.
39. Anything. Bug: not needed given...
40. Match end of the password. Bug: can also be dropped along with
line 39.
--
Cheers, Ralph.
--
Next meeting: Online, Jitsi, Tuesday, 2024-11-12 20:00
Check to whom you are replying
Re: [Dorset] Can I move the beginning of my root partition (to increase size) and still boot normally?
Hi John, > Now I have wiped (wipefs) the 22.04 half and erased it but I would > like to grow the 24.04 partition into the first half of the original > root partition. I think the time taken will vary depending on whether - the end of the existing partition is moving forwards into vacated space, which is quick, or - the beginning of the existing partition has to move backwards, which is slow. > I can do this with gparted from a live memory stick Yes. I'd expect it to enlarge the partition and then have the filesystem expand to fill its new size. > but what happens to the boot arrangements? I'm using grub2 I think ‘it depends’. Separately from the use of GRUB 2 is whether the disk is partitioned using the old master-boot record, MBR, or the newer GUID partition table, GPT. And whether the machine boots using the old BIOS technique of reading from disk to get started, or UEFI which stores the starting data in non-volatile RAM; UEFI systems will have an EFI partition on the disk. The Arch Linux wiki has useful information which is applicable to other Linux distributions. Some starting points: - https://wiki.archlinux.org/title/Arch_boot_process - https://wiki.archlinux.org/title/GRUB - https://wiki.archlinux.org/title/EFI_system_partition -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-11-12 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Interesting feature of LUG Mails
Apologies, I sent this only to Peter. Hi Peter, > I don't see any original mails, only replies, and I am not sure that > I see all replies. Given https://mailman.lug.org.uk/mailman/private/dorset/2024-October/thread.html, can you identify any emails you didn't receive? To all, that page is a handy place to confirm the mailing list has received an email once it has had time to update. Or, as Clive suggested, you can turn on acknowledgements of receipt for your subscription. Receive acknowledgement mail when you send mail to the list? -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Interesting feature of LUG Mails
Hi Clive, > Not sure if this is any connection but our Church sends out auto > reminders to people with a 'Service' coming up. But anyone with > a Gmail account do not get the email - it would appear it's a change > taken place in the Gmail system. It's quite possible an old configuration of the church's DNS entries coupled with how it is sending these reminders doesn't meet the growing list of standards to combat spam: SPF, DKIM, DMARC, and now ARC. A growing range of email providers, not just Gmail, with treat these older emails as spam. The provider may then reject fully receiving them, which the sending system knows, discard them, or mark them as spam for the user. Gavin, who does all the work, probably has the lug.org.uk systems set up correctly to avoid this. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Interesting feature of LUG Mails
Hi Tim H,
> My apologies, but until your post timed at 19:38 that was the first
> email I have seen from yourself, and I have not seen any posts from
> Alex prior to his one at 21:28 so email are not coming through for
> some
Here are all the emails in this thread in date order.
$ scan -forma '%{date} %{from}' p
Mon, 21 Oct 2024 19:38:45 +0100 Peter Merchant
Mon, 21 Oct 2024 20:26:12 +0100 Hugh Frater
Mon, 21 Oct 2024 21:01:34 +0100 Peter Merchant
Mon, 21 Oct 2024 21:28:41 +0100 Alex
Mon, 21 Oct 2024 21:30:46 +0100 Tim
Mon, 21 Oct 2024 21:35:52 +0100 Peter Merchant
Mon, 21 Oct 2024 21:39:57 +0100 Tim
Mon, 21 Oct 2024 21:56:01 +0100 Peter Merchant
Tue, 22 Oct 2024 10:18:56 +0100 CA Wills
Tue, 22 Oct 2024 13:55:47 +0100 Hamish McIntyre-Bhatty via dorset
Tue, 22 Oct 2024 14:07:56 +0100 Peter Merchant
Tue, 22 Oct 2024 14:51:46 +0100 Ralph Corderoy
$
Peter's 19:38 email was the first one from him; it started the thread.
Alex's first and only email was the 21:28 one you mentioned.
So that doesn't suggest you are missing any emails.
--
Cheers, Ralph.
--
Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00
Check to whom you are replying
Meetings, mailing list, IRC, ... https://dorset.lug.org.uk
New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Interesting feature of LUG Mails
Hi Hugh, > > I don't see any original mails, only replies, and I am not sure that > > I see all replies. > > > > Caveat - I see my own mails. > > Same here…. I’m on gmail. The top posting makes it ambiguous, but I assume you are saying you don't see ‘original mails’, i.e. ones which start a new thread. Yet you are replying to Peter's email to the list which started a new thread, as Alex pointed out. If you mean you see your own emails to the list then there's an option to turn that off along with another useful option. Receive your own posts to the list? Ordinarily, you will get a copy of every message you post to the list. If you don't want to receive this copy, set this option to No. Avoid duplicate copies of messages? When you are listed explicitly in the To: or Cc: headers of a list message, you can opt to not receive another copy from the mailing list. Select Yes to avoid receiving copies from the mailing list; select No to receive copies. If the list has member personalized messages enabled, and you elect to receive copies, every copy will have a X-Mailman-Copy: yes header added to it. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Interesting feature of LUG Mails
Hi Peter, > I try to loin as petermerch...@hotmail.com That is the email address which is subscribed. > and after I try I get the message 'username or password was wrong' and > my username seems to have changed to petermerchant_hotmail.com. https://mailman.lug.org.uk/mailman/options/dorset/petermerchant--at--hotmail.com is the page with your options. If you are not logged in then you are asked for a password. If you don't know it then click ‘Remind’ to be emailed it. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Application not running
Hi, Patrick wrote: > > I have been following this page: > > https://www.linux.org/docs/man1/systemd-bootchart.htm s/$/l/ gives a working https://www.linux.org/docs/man1/systemd-bootchart.html > > But my understanding is that it should produce a file upon bootup, > > but it does not. > > Did you pass init=/usr/lib/systemd/systemd-bootchart on the kernel > command line, as the man page says? ‘Normally, systemd-bootchart is invoked by the kernel by passing init=/usr/lib/systemd/systemd-bootchart on the kernel command line.’ One way to do this is to pause in GRUB, or whatever, and make an edit to the line which gives the kernel its parameters. That edit is a one-off change for the continuing boot. https://wiki.archlinux.org/title/Kernel_parameters#Configuration > > And it is normal for any files produced, put into /run/log disappear > > after a reboot? > > This I don't know, but it sounds highly plausible. Here, the /run/log filesystem is tmpfs, i.e. stored in RAM. $ df -T /run/log Filesystem Type 1K-blocks Used Available Use% Mounted on runtmpfs 2019156 812 2018344 1% /run $ -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Printer output black not printing
Hi Clive, > Printer is a HP Photosmart 309g colour print, copy, scan; Ethernet > connected to router. ... > 2, Same printer: tried to find how to change display screen > background from dark to light but can't find anything on internet. > I know it's possible as I changed it many years ago (can't find the > notes on how to do it). ... > Printer not supported by HP now. I went looking for the manual and HP say: ‘Retired product ... ‘Once a product is retired, the official HP support content (troubleshooting articles, user guides, how-to videos, etc.) for that product is removed from the HP web site.’ That seems a stupid policy to me, one which only harms the customer who has handed over money in the past. It knocks them off my list of manufacturers to buy. I did find the right manual, probably, at https://manualmachine.com/download.php?id=7352056&download-status=process0001 but it doesn't contain much of use. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Dell XPS 13 Developer Edition Laptop BER
Hi Terry, > After a few minutes, the message changed to 6% *not charging* and KDE > threatened to shut the machine down. Threatened. So you could have continued to use it? Sorry, I'm not used to what KDE does on a low battery. > energy: 3.0488 Wh > energy-empty:0 Wh > energy-full: 45.14 Wh > energy-full-design: 45.14 Wh > energy-rate: 0 W ... > The machine stayed up OK, but the percentage never went up. Has the battery every got this low before? Could it just be that charging is very slow from this low state? Have you an old battery to see if different behaviour can be observed, even if the battery isn't a suitable replacement. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Dell XPS 13 Developer Edition Laptop BER
Hi Terry, > Except that with the battery connected, it thinks the laptop isn't on > mains power so it does a safe shutdown. Don't ask me why. ... > The problem is that I cannot run it under Linux with the battery > connected, so those battery health commands are not available to me. > The battery icon does not even appear on the Taskbar! Ditch the GUI. Ditch the KDE desktop. They're getting in the way with power management which is constraining. Try a different desktop if you've others installed. Or see if there's a console-only rescue mode. Or boot from a USB stick with some other Linux distribution. It's ‘userspace’ programs which are interpreting the power situation and forcing you to shut down, not the Linux kernel. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Dell XPS 13 Developer Edition Laptop BER
Hi again Terry, > There's commands like ‘upower --dump’ but what would be useful may be > very distro dependent. This may get you started. https://www.howtogeek.com/810971/how-to-check-a-linux-laptops-battery-from-the-command-line/ -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Dell XPS 13 Developer Edition Laptop BER
Hi Terry, > > > I don't understand why a Linux laptop on mains power would want to > > > shut down in one minute due to the amount of battery charge. > > > > Well. If the OS thinks that the laptop is not charging and the > > battery charge level is low, then it would do a safe shutdown. No, surely it would run off mains power. > The laptop runs perfectly with the battery removed, so it is not > a complete write-off :-) Good. The laptop can detect it is getting mains power so it then knows it doesn't have to use power-saving modes if it doesn't want to, and that it can charge the battery if needed. What it doesn't need to do is shutdown regardless of whether the battery is taking a charge or not. So something odd is going on there and you may be able to diagnose more under Linux using just the laptop with the battery installed. https://wiki.archlinux.org/title/Power_management#Userspace_tools lists some programs, including GUI ones, though I've no experience with any of them. Ideally, you'd like to see that mains input is being correctly spotted, and stats from the charging circuitry. Preferably without GUI pixels adding Chinese whispers. Perhaps those with laptops, the majority?, will know more where to look and what's normal to see. There's commands like ‘upower --dump’ but what would be useful may be very distro dependent. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Dell XPS 13 Developer Edition Laptop BER
Hi Terry, > In the OS, the battery status icon indicates that the laptop is *not* > charging, the percentage charge is 7% and the laptop will shut down in > 1 minute. ... > > Whilst working through this latest problem, continue to use the > > laptop plugged into the mains so any other issues also come to > > light. > > I can't do that (see above) I don't understand why a Linux laptop on mains power would want to shut down in one minute due to the amount of battery charge. Run it from the mains with no battery installed? -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Dell XPS 13 Developer Edition Laptop BER
Hi Terry, > The laptop will no longer charge ;-( Is it just that the battery never gets charged, or does the laptop indicate a problem with the charging? > I have measured the voltage at the two outside pins on the battery > connector, (both powered and unpowered) and I get zero volts. Is this socket for the connector with the nine coloured wires? Perhaps the charging circuit only supplies measurable power when a protocol is followed across those wires; something the battery can do. Is there a service manual which gives more precise directions for this kind of diagnostics? > Charging worked prior to the BIOS battery issue, so I'm assuming that, > at some point, the circuits got blown during diagnostics. Does it look like your original battery? > Does anyone have any comment on this? Whilst working through this latest problem, continue to use the laptop plugged into the mains so any other issues also come to light. Otherwise, you might labour to fix this one problem only to then find later ones which meant you wouldn't have bothered. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Intermittent Network Connection at WMT
Hi Terry, > This system has worked fine since before lockdown, but has just become > intermittent. If no software has changed then it's presumably a hardware problem? > I found that I can always connect to the WiFi Antenna, which indicates > that the Webserver is working and providing an IP Address. On one or > two occasions, I was then able to load the WMT-Guest.com page and once > I was able to SSH into the VPN Server. However, most of the time > I couldn't access the network. Experiment with ping to see what devices respond reliably, e.g. the other river Pis, spreading further away measured in network devices as the results are good. > On Tuesday, I intend to go to the site and remove the kit for testing > here. If it ‘just works’ at home then perhaps it's an interference problem on site. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
[Dorset] When is next month's meeting: 2024-11-??.
Hi, When's the next meeting? Was it discussed last night? It would normally be Guy Fawkes’ night. $ cal +1month November 2024 Mo Tu We Th Fr Sa Su 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 $ -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] OT: Are there any real benefits of using a VPN Service to access the Internet?
Hi, Ian wrote: > I think the value proposition that VPN services offer is twofold: They also help route around the damage caused by the silent blocking of some sites by UK ISPs. https://en.wikipedia.org/wiki/Web_blocking_in_the_United_Kingdom Interesting pages about VPNs include https://en.wikipedia.org/wiki/WireGuard and https://en.wikipedia.org/wiki/Tailscale. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Dell XPS 13 Developer Edition Laptop BER
I wrote: > I wonder if he ran a memory soak test like MemTest86+ to help confirm > this? https://memtest.org Which would be tricky if it wouldn't boot! -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Dell XPS 13 Developer Edition Laptop BER
Hi Terry, > The symptoms are that the laptop won't boot and the Power LED indicate > 3 amber flashes, followed by one white flash, which the above site > says is the BIOS Battery. Agreed. For other models on other pages, I see 3a-1w as Bad Coin Cell Battery Replace the CMOS Battery and Contact Technical Support if issue persists which is the same thing. > the BIOS Battery requires the main battery to be removed again. That's what https://dl.dell.com/manuals/all-products/esuprt_laptop/esuprt_xps_laptop/xps-13-9350-laptop_Service%20Manual_en-us.pdf says. > However, the guy there said that a BIOS Battery shouldn't prevent > booting; is that true? I think it's false. If the non-volatile BIOS memory, commonly known as CMOS RAM, isn't perfectly preserving its contents due to battery failure then a checksum or digest may alert the BIOS to corruption and it could then refuse to proceed. Others seem to think this is possible: https://duckduckgo.com/?t=ffab&q=cmos+battery+failure+stops+booting&ia=web > He said that the thought that message on the 9350 meant a memory > issue, not the battery, so he took it in to investigate. I wonder if he ran a memory soak test like MemTest86+ to help confirm this? https://memtest.org Or was he talking about the CMOS RAM memory? I doubt it if it was a BGA device. > However, when he put it back together, he found it worked > intermittently. ... > so I will be collecting it in the next day or so. It will be interesting to know what intermittently means when you've had time to try it. > Anyway, he has not charged me anything for the work. Surprising. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Email regained.
Hi Charles, > Everything has gone down the drain I think the only course is junk - > impossible to send Emails. Here's Thunderbird's help on how to set it up with Gmail. https://support.mozilla.org/en-US/kb/thunderbird-and-gmail I suggest following that initially and if it doesn't work, report where it starts to deviate to the Dorset LUG mailing-list, I've CC'd them, as there are some on there who use Thunderbird, unlike me. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Thunderbird and Wessex Internet.
Hi Charles, > I had been with Plusnet Yes, you were char...@childokeford.plus.com. Are you still in Child Okeford which is a couple miles northeast of Blandford Forum? https://www.openstreetmap.org/#map=12/50.9136/-2.2378 > and moved to Wessex Internet. ... > and I had no Emails. Wessex Internet don't offer an email address along with the Internet connection. They assume you'll using Gmail, etc. https://www.wessexinternet.com/help-and-support/can-i-get-an-email-address/ > I decided to update to Mint 22 and found that Thunderbird now demands > a Primary Password and 8 days of trying without success! This page describes Thunderbird's primary password and how to reset it, but comes with a warning about the impact. Note, I've never used Thunderbird, but I know others here do and may have better ideas. https://support.mozilla.org/en-US/kb/protect-your-thunderbird-passwords-primary-password Hopefully, others here can also offer some help. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Verifying backup mail exchanger
Hi Rhys, > I've decided to setup a `postfix` server on a remote VM that is > configured to recieve any mail sent while my primary mailserver is > "offline". Like Ian, I'd go with the remote VM hosting the primary MX, though it's more upheaval from your starting point. It's likely to have better connectivity uptime, and it doesn't point the Internet at your home IP address with you having to open up incoming TCP ports. > Is there a good way for me to test this is working for external mail > and secure without actually taking my primary mailserver offline? swaks(1) saves typing TELNET, or using socat(1), etc. https://jetmore.org/john/code/swaks/ Block packets from your test device to the primary's IP address; this will also test your sending SMTP program switches to the secondary if it's configured as a smarthost. > 250 2.0.0 Ok: queued as A1CC752D1 ... > And I do recieve the emails when sent directly this way, but I just > want to verify it's all working correctly for external mail. Does this remote secondary MX attempt delivery to the primary, or just hold emails until you turn up to manually prod it? If it attempts delivery and you're offline for a while, say at HM's pleasure, then its attempts may fail and the bounce and loss still occur. Another approach is to not have a secondary, have the remote be the primary, and use IMAP to access the emails on it. Either fetchmail(1) to retrieve them, or keep them there for access from multiple mail clients. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-10-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Failed upgrade, system restored. now have an error.
Hi Tim, > I had seen that [post] and have been watching it to see if any helpful > suggestions Comment on that thread; a ‘me too’ with similar stuff to what you sent to this list. Say it seems as if the automatic snapshot is faulty, or the restore from it is incomplete. It seems odd you're not alone suffering problems. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-09-03 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Failed upgrade, system restored. now have an error.
Morning Tim, > Apt seems to run but I then get the following error; > > /usr/lib/ubuntu-advantage/apt-esm-json-hook: > /lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.32' not > found (required by /usr/lib/ubuntu-advantage/apt-esm-json-hook) You are not alone: https://forums.linuxmint.com/viewtopic.php?t=426962 Unless that's you. :-) > Yesterday I tried to upgrade my Mint install from 21.3 to 22 followed > the upgrade info and it failed, not sure why. Restored by system from > a snapshot it made before the upgrade attempt and all looks ok. My guess is the snapshot isn't purely what was there before the upgrade started or the restore doesn't put things back exactly as they were. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-09-03 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
[Dorset] Passwords reset for Dorset LUG wiki accounts.
Hi, The wiki behind https://dorset.lug.org.uk has recently moved to a new server with a later version of the DokuWiki software. Most users' passwords were hashed using the MD5 algorithm so those ones have each been reset to a distinct random password as this triggers a better algorithm to be used. So your wiki password will probably no longer work. Instead: - Pretend you've forgotten it - Enter your username - Open the link in the email sent to prove you're that username - A second email then arrives with the new password If you've forgotten your username, or the email may be out of date then let me know off-list. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
[Dorset] Running OpenSSH server? Check for a fix.
Hi, Those running OpenSSH's SSH server, you'll know if you are, might want to see if their distribution is offering an upgrade and if so, accept it. There's news of a flaw and distros are making a fix available. https://www.qualys.com/regresshion-cve-2024-6387/ -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-07-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] OT: Wimborne Minster suggestions for a lunch and a meeting room.
Hi Peter, > There is a new space offering working areas, but haven't sussed it out. > It might be associated with that new coffee place 'Sonders?' Thanks, found it, and it offers a room for half a day. https://www.sondercoffee.co.uk/co-working/ -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-07-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
[Dorset] OT: Wimborne Minster suggestions for a lunch and a meeting room.
Hi, Next month, five of us want to meet in Wimborne to have a spot of lunch and then a room for a business meeting for the whole afternoon. These don't have to be at the same location but ideally walkable between the two. Any suggestions? -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-07-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
[Dorset] Who knows Winton? In-person meeting, Wednesday 19th June.
Hi, Tim wrote: > > If that turns out too noisy then consider a Wetherspoons as they > > have no music and no noise from fruit machines. They also tend to > > have a lot of carpet, a unique design per pub influenced by its > > history or location, which absorbs noise unlike the fashionable hard > > floors elsewhere. Oh, and the drinks are cheap. Probably best to > > avoid a Tuesday or Thursday evening, Steak and Curry Club nights. > > Monday Club has the drinks get even cheaper; I don't know if that > > makes it busy. > > > > I see there's one in Winton. > > https://www.jdwetherspoon.com/pubs/all-pubs/england/dorset/the-parkstone-and-heatherlands-bournemouth > > > > Looks like there's some parking nearby, off Cranmer Road, though > > I don't know if it's public; I'm not a local. > > https://www.openstreetmap.org/#map=18/50.74336/-1.87835 > > Anyone have comments about Ralph's suggestion of Wetherspoons Winton > (quoted [above])? It will probably have a TV or two. They normally show BBC News. They'll switch to the football match but the sound will remain off. ’Spoons are normally quite big with plenty of seating away from teles so the football fans won't be competing with you for space. > Who is planning to go tomorrow? (I'm in.) Not me. Not a great time at the moment for travelling for me. -- Cheers, Ralph. -- Next meeting: The Broadway, Wednesday, 2024-06-19 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] In-person meetings
Hi, Hamish wrote: > we agreed to meet at The Broadway ... > It would be good if someone could go and scout out the pub in advance. If that turns out too noisy then consider a Wetherspoons as they have no music and no noise from fruit machines. They also tend to have a lot of carpet, a unique design per pub influenced by its history or location, which absorbs noise unlike the fashionable hard floors elsewhere. Oh, and the drinks are cheap. Probably best to avoid a Tuesday or Thursday evening, Steak and Curry Club nights. Monday Club has the drinks get even cheaper; I don't know if that makes it busy. I see there's one in Winton. https://www.jdwetherspoon.com/pubs/all-pubs/england/dorset/the-parkstone-and-heatherlands-bournemouth Looks like there's some parking nearby, off Cranmer Road, though I don't know if it's public; I'm not a local. https://www.openstreetmap.org/#map=18/50.74336/-1.87835 -- Cheers, Ralph. -- Next meeting: The Broadway, Wednesday, 2024-06-19 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] OT- Double mains sockets containing Wifi extenders
Hi Victor, > 2. The Zen router comes with a default wifi password that is just > a string of twenty decimal digits. Worth about eleven alpha-numericals, just out of interest. Or half-a-dozen words from a small list: ‘correct horse battery...’. $ bc -l l(10^20) / l(26+26+10) 11.15827534638850139842 l(10^20) / l(2000) 6.05871501509247181585 ^D $ > the hub refused to let me enter this password saying it was not strong > enough! A financial institution wanted a ‘memorable word’ recently. What was typed was ***'d with no ‘eyeball’ icon to turn that off. And they disabled paste. I switched to an all-digits one to be more confident what I typed in twice was what I was noting down. And I'm giving my money to them in exchange for their debt. > I intend to set up the mesh network with a ISP-agnostic SSID I surveyed the SSIDs around me and copied the style of the most common to blend in. It didn't match my ISP. I thought if there's someone out there wanting to pick an SSID to target, I'd rather be one of a crowd. Amusing as home-picked SSIDs could be. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] In-person meetings
Hi, Peter wrote: > At a previous discussion the Kings Arms at 252 Wallisdown Road Wherever you decide, have someone scout it out on the same weekday and time. It may now be a dive, or have constant, loud music. Even if someone vouches for it for Sunday lunch, that weekday might be pub-quiz night. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Pi 5's PCIe connector for NVMe SSDs.
Hi, Peter Merchant wrote: > > I saw this the other day, and was wondering about it. > > https://www.tomshardware.com/raspberry-pi/add-on-board-lets-you-use-four-nvme-ssds-at-once-with-raspberry-pi-5 Thanks Peter, that's interesting. I wanted two NVMes for a local RAID 1 mirror. Four seems a bit overkill given the Pi's PCI 2.0 bottleneck. Apparently, a simple configuration change lets it run at PCI 3.0 speeds, which are roughly double in theory, but that's officially unsupported and I can't see the data-corruption risk is worth it. Plus this board uses a ‘ASM1184e PCIe Gen 2’ chip so the limit would still apply even if the Pi's limit was raised. https://en.wikipedia.org/wiki/PCI_Express#Comparison_table Rhys wrote: > While on the topic of drives on Pi's; I did read this post by Jeff > Geerling the other day. Might be something worth looking into if you > won't benefit from the additional bandwidth and features of NVMe. > https://www.jeffgeerling.com/blog/2024/radxas-sata-hat-makes-compact-pi-5-nas True, I won't benefit from the NVMes. I was going for those instead of my previous SATA SSD purchases with the idea they'd be more useful in other devices in the future. But you've made me consider if I should just go for capacity instead. > I wonder if I could get SATA and NVMe running as > some kind of cache, with the SATA drives being used for mass storage? There's https://docs.kernel.org/admin-guide/bcache.html SSD in front of RAID array: https://www.jeffgeerling.com/blog/2021/htgwa-use-bcache-ssd-caching-on-raspberry-pi > I am also looking into some of the non-pi SBCs like the Pine64 and > Radxa's for a project Yes, the non-Pi boards interest me, but given I'd like this machine to be stable and not lot of trouble, I appreciate the large effort invested in the Pi 5 and Raspbian. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Pi 5's PCIe connector for NVMe SSDs.
Hi Rhys, > As for NVMe HAT's, personally, I use the Geekwork x1001 on mine > https://geekworm.com/products/x1001 Thanks, I did not know of the Shenzhen based Geekworm and see they have a dual 2280 board too. This one mentions a firmware update. ‘The X1004 is designed specifically for data storage purposes and currently support NVMe boot with the latest firmware EEPROM 2024/05/17 version.’ — https://geekworm.com/products/x1004 And they have a case which can accomodate it. https://geekworm.com/products/p579 -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Pi 5's PCIe connector for NVMe SSDs.
Hi Bob, > You might want to look at the PIMORONI site, single and dual NVMe > adapters up to 2280 in length. Thanks, I found which does allow two up to the 2280's 80 mm. https://shop.pimoroni.com/products/nvme-base-duo-for-raspberry-pi-5 And thanks for the pointer to Argon cases. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Pi 5's PCIe connector for NVMe SSDs.
Hi Patrick, > That was an interesting read. Good. > > The Linux kernel has NVMe support since 5.0; package nvme-cli drives > > it. > > Linux certainly had at least some support for NVMe before version 5.0. > I think you must be referring to a subset of the NVMe functionality > being added in version 5.0. Yes, sorry, I should have written ‘NVMe over TCP/IP’. ‘What is needed on the Host side (hardware, firmware, software, drivers, etc.) to support NVMe over TCP? ‘NVMe/TCP software does not require any special hardware/firmware to operate, although different classes of CPU and network adapters can benefit from better performance. NVMe/TCP host and NVM subsystem software need to be installed in order to run NVMe/TCP. The software is available with Linux Kernel (v5.0) and SPDK (v.19.01), as well as commercial NVMe/TCP target devices.’ — https://nvmexpress.org/answering-your-questions-nvme-tcp-what-you-need-to-know-about-the-specification-webcast-qa/ -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
[Dorset] Pi 5's PCIe connector for NVMe SSDs.
Hi, I wrote a private email to a friend. The content may be of interest to some on the list, so here it is. Do you know much about NVMe over PCIe for SSDs? I don't, only having bought SATA SSDs in the past. The Pi 5 has a ×1 PCIe connector, meaning one channel of two twisted pairs to allow a full-duplex connection. A ×4 PCIe has four of them allowing data to be sent in parallel, 4 b at a time. Raspberry Pi have recently released their PCIe HAT+ for plugging in an M.2 NVMe SSD, though only in one of two short form factors. https://www.raspberrypi.com/news/m-2-hat-on-sale-now-for-12/ That's handy. For $12 one can plug in large reliable storage and boot from it. Crucial, really Micron, don't make M.2 SSDs that short, but Samsung do so I'll probably plump for them as a second preference. But it's only one drive. What would be really nice is two in a RAID 1 mirror. The two peers sat at either end of the PCIe can negotiate the ×𝑛 channels downwards. This is how a ×4 can plug into a ×16. Some controllers can also support ‘bifurcation’, splitting a ×16, say, into a ×8 and two ×4 so a passive adapter card can plug into the ×16 and provide three connectors. This also needs BIOS or OS support. (Bifurcation seems the wrong word but perhaps it's split by a multiple of two each time.) (Sorry if you know all this. By putting it in writing, I'm having to think it through for myself.) Anyway, the Pi 5's ×1 can't be split. So a passive adapter, one which is effectively just wiring, wouldn't work. My slight understanding is an active adapter, meaning it has a PCIe controller, is required to bring forth a ×16 or whatever by intelligently multiplex. Obviously, it's all squeezed down a ×1 in the end, but if performance was key then the Pi 5 wouldn't be used. It's just a compact way to get considerable RAID 1 storage to hand. Ah, I see a reference to a ‘PCI switch’ rather than controller to multiplex. That's led me to https://pineboards.io/products/hatdrive-dual-2xnvme-2230-2242-gen-2-for-raspberry-pi-5 which uses an ASMedia device. So such things do exist. €40 seems a little high, but they're low volume. NVMe has other standardised transports, e.g. TCP/IP with TLS. This suggests it's just a ‘simple’ matter of software to have a RAID 1 with one M.2 drive dangling off the local ×1 PCIe and the other over Ethernet. Ethernet can stretch from LAN to WAN: a second local Pi 5 on the back of the TV running LibreElec, or an off-site non-Pi. The Linux kernel has NVMe support since 5.0; package nvme-cli drives it. There's also the BSD-licensed SPDK which is a user-mode C implementation of NMVe along with a network stack; to avoid the kernel overhead. https://spdk.io/doc/about.html. Which makes me wonder what the minimal hardware is to deploy either and drive local NVMe storage for network access. Not corporate-level data-centre SAN but home, hobbyist, small-office level. Easiest would be some SoC, ARM or RISC-V, running Linux. SPDK on a non-Linux SoC with PCIe would seem possible. https://spdk.io/doc/porting.html -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Ignoring laptop screen and defaulting GRUB.
Hi Tim H, > I have to run a single line bash script at present which is basically > a xrandr instructions which sets the geometry for my two monitors. > Otherwise I get an issue where both screens are unreadable and > distorted at bootup sometimes. Running xrandr early doesn't sound like the right fix just because it fixes the issue once logged in. I'd start with what Hugh suggested. > ...I get the customary Debian Grub screen asking me to select the > normal boot up or the advanced option displayed on the laptop top > screen. Once I select normal boot, the login box asking for username > and password pops up. What I want to do is ... > do away with the Debian Grub screen and jump straight to the login > window. Play with your grub.cfg's ‘default’ and ‘timeout’. https://wiki.archlinux.org/title/GRUB#Custom_grub.cfg -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Tues evening
Hi Andrew, > I want to find duplicates in that 3 TB of files, plus another location > on another computer, so I might write a little program to do that by > collecting filenames, checksums, file sizes, etc. in each location and > then processing the results afterwards. If you're only initially interested in files containing the same bytes and can afford to throw CPU at it then run b2sum(1) with -z on every file, sort to bring identical digests together, and then uniq(1) to keep only the duplicate-digest lines with -Dw. An alternative digester is xxHash. https://github.com/Cyan4973/xxHash?tab=readme-ov-file#readme > I had 1 TB and 2 TB hard disks and used btrfs to combine them. btrfs supports having one disk block be part of multiple files. There are programs which will incrementally de-duplicate using this. You could keep running them between adding another tranche of files. https://btrfs.readthedocs.io/en/latest/Deduplication.html -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] How can I tell if my Router is 'Seeing' Legitimate Connection Attempts from the Internet
Hi Terry, > they both returned eventually with connection refused (Connection timed > out in each case) ‘Connection refused’ is a different error to ‘Connection timed out’. - You knock at my door. I refuse to open it. - You knock at my door. You don't hear the knock. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] How can I tell if my Router is 'Seeing' Legitimate Connection Attempts from the Internet
Hi Terry, > > > $ telnet -4 bitfolk.com 54321 > > > Trying 85.119.80.199... > > > telnet: Unable to connect to remote host: Connection refused > > > $ ... > I get exactly the same result when I try to telnet into my static IP > address. So you should try comparing a port you expect your router to be listening on, the VPN TCP port, and a port which you expect to have nothing listening on it, 54321 in my example above. If both give ‘connection refused’ then your router is not accepting incoming VPN TCP port connections. But if the VPN ones don't immediately fail with that error and the other ones do then the router is willing to do something. Then you have to work out what, e.g. is the next hop getting the incoming packet from the router? tcpdump(1) can help there, as we've probably discussed before. > my power adapters failed, so I am now using a WiFi Extender with an > Ethernet port. Could that have any bearing? Not obviously, to me. Move the VPN hosting machine closer to the router, if you're in doubt. > from my PC on 192.16.1.21. If that's your PC then your public IP address probably ends in 167 and you've already made it public through the header fields of your email. Just in case that makes it easier to say what you're trying to do and the port numbers involved. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] How can I tell if my Router is 'Seeing' Legitimate Connection Attempts from the Internet
Hi Terry, > 1. My static IP Address to the Internet is what my router says it is > (established using whatsmyip.org). > > 2. I can successfully ping my static IP Address from another device > not on the same network. - Is the pong coming from the router? - Does it have a ‘pong’ configuration which is currently on? - If switched to off, do the pong's cease? - If you unplug the router from the Internet or turn it off, do the pong's stop? > The Router logs show no activity when I: > > a. Ping the IP Address from another device not on the same network. > > b. Attempt to connect to the VPN Server which is connected to my home > network. Does the attempt work? > Port forwarding is set up to allow this, but I would have expected the > Router to detect the attempt anyway. > > Any ideas? The router might be getting a continual stream of packets. Logging those would take a lot of space. Perhaps it doesn't know the particular ones of interest to you. It depends on the router and how configurable it is. If you attempt to connect to a TCP port at the static IP address which is not being listened to, do you get a ‘connection refused’? If so and you don't get one for your VPN port then you've reached something which is listening. That might be the router forwarding it on. $ telnet -4 bitfolk.com 54321 Trying 85.119.80.199... telnet: Unable to connect to remote host: Connection refused $ -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Where Grub??
Hi Tim, > External USB SSD SDB > SDB1 backup ... > The install wiped and partitioned of my SDB (which became SDC) drive > wiping out over 18months of backups. ... > That will teach me to play around with a system that was working > fine. Don't have precious data on external drives needlessly connected. Just connect when writing and to periodically read all the blocks to ensure they're still readable and allow repair of those which struggled. When an SSD or other NAND-flash device is brand new, its unpowered data retention will be several years... it gets shorter as it experiences wear and tear, by writing data — https://www.crucial.com/support/articles-faq-ssd/ssds-and-smart-data -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-06-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Where Grub??
Hi Tim,
> So how do I confirm if I did install grub onto dev/sda for the
> installed day to day distro.
My guess:
- Turn everything off.
- Unplug the external USB drive.
- Turn the PC on.
- Expect GRUB to appear, offering your old installation.
- Select it.
- See if it boots it successfully.
> Once I have that information how do I go about updating Grub so I can
> remove the distro I was testing and just leave the day to day distro
> please.
That may depend on the style of GRUB installation set up by the
distribution. If you have a /boot/grub/grub.cfg then that will have
‘menuentry { ... }’ entries matching what you see.
--
Cheers, Ralph.
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Re: [Dorset] Problems Installing Package on Raspberry Pi
Hi Terry, > > sudo -i apt-get purge --auto-remove strongswan > > I tried that, it's still the same Still the same, as in I still have the following directories and files: strongswan.conf ... Or still the same complaining about the corrupt \xFF in what should be a text file of Perl source code? Whilst the corruption exists, most bets are off and trying more things risks worsening the corruption. If it's a Pi's SD card, start afresh? -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-05-07 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Problems Installing Package on Raspberry Pi
Hi Terry, > sed -n 'l; /^}/q' /usr/share/perl5/Debconf/AutoSelect.pm > \377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\ > \377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\ > \377\377\377\377\377\37.. > > Screen-fulls of that. The file is corrupt. 377 is octal for 255, i.e. the file starts with bytes of FF in hexadecimal. This is typical of an erased sector of non-volatile memory. Check the disk media in some way, then the filesystem's meta data, and if all of that's well then it's probably just the bytes in some files which are corrupt. debsums(1) can help there. sudo -i debsums -s -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-05-07 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Problems Installing Package on Raspberry Pi
Hi Terry, > I've found something odd. I believed that this command: > > sudo dpkg --purge --force-all strongswan > > Should remove everything related to the package strongswan. From dpkg(1): --force-things --no-force-things, --refuse-things ... Warning: These options are mostly intended to be used by experts only. Using them without fully understanding their effects may break your whole system. You're using APT which understands dependencies between packages. With dpkg(1), you're ducking under APT and fiddling with things without its knowledge, breaking its assumptions. I'd use sudo -i apt-get purge --auto-remove strongswan -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-05-07 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Problems Installing Package on Raspberry Pi
Hi Terry,
> debconf: Perl may be unconfigured (Unrecognized character \xFF;
> marked by <-- HERE after <-- HERE near column 1 at
> /usr/share/perl5/Debconf/AutoSelect.pm line 1.
What's the output of
sed -n 'l; /^}/q' /usr/share/perl5/Debconf/AutoSelect.pm
For example,
$ sed -n 'l; /^}/q' /usr/share/perl5/Debconf/AutoSelect.pm
#!/usr/bin/perl -w$
# This file was preprocessed, do not edit!$
$
$
package Debconf::AutoSelect;$
use strict;$
use Debconf::Gettext;$
use Debconf::ConfModule;$
use Debconf::Config;$
use Debconf::Log qw(:all);$
use base qw(Exporter);$
our @EXPORT_OK = qw(make_frontend make_confmodule);$
our %EXPORT_TAGS = (all => [@EXPORT_OK]);$
$
BEGIN {$
\teval {$
\t\trequire Glib::Object::Introspection;$
\t};$
}$
$
--
Cheers, Ralph.
--
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Re: [Dorset] The future of family history digital recordings?
Hi Peter, > The thought is that they wouldn't mean anything to anybody in the 22nd > century unless I left some notes in each folder. I don't intend to > say what each photo was, but more the occasion of the photos. The > question is, what format should I use for these text files - Plain > Text Plain text would last the longest. > ODT, or Microsoft word? If you want a word-processing format, use the Open Document Format for Office Applications, ODF. https://en.wikipedia.org/wiki/OpenDocument#Application_support > Another alternative is to write it and save them as a PDF. There are different PDF versions. Pick one which has been standardised for long-term archiving. https://en.wikipedia.org/wiki/PDF/A The downside is others may find it less easy to augment the information over time. > The next thing is that I would like to take some of the large > gathering pictures and say who the people are. To me that seems to > mean sticking a letter or number on each person and saying who they > are in the attached text. Is there any better way? I am not skilled > at editing pictures. Do not edit the picture. Others will not thank you for losing the original pixels. The time-honoured way would be extra text: Pictured from left to right: back row: ...; middle row: ...; seated: ... If the pose is a bit of a melee then try to put them in rows anyway. If there are other pictures then any confusion can probably be sorted out by comparisons. More tediously, take a low-resolution thumbnail and blot an obvious capital letter on it, or ① ② ③, to mark each person. Or just a plain rectangle with the letters in the appropriate relative positions. An option is to alter the image's meta-data to include your simple plain-text ‘who's whom’ description so the two travel together in the future. But again, you may want to leave the original image pristine depending on whether it's already been mucked with or not. Plus, if there are other copies then creating derivatives means others are faced with multiple versions in time and have to pick or merge. Lastly, consider storing a digest of key files alongside them so you can trust they haven't changed, e.g. sha256sum *.jpeg >digest.sha256 sha256sum(1) and others have a ‘-c’ to check the digests. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-05-07 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Synchronise Bookmarks Between Devices Running Chromium
Hi Terry, > > https://wiki.archlinux.org/title/Chromium > > Well, that confirms it I guess. Thanks for that. Did you see it mentioned https://www.xbrowsersync.org ? I've not used it. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-05-07 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Synchronise Bookmarks Between Devices Running Chromium
Hi Terry, > Everything works OK, but it seems that I can longer sync my bookmarks > from the Chromium instance running on this desktop PC and the Chromium > instance running on the laptop. ... > I found that at least one site that indicated that Chromium no longer > supports this feature I found the introduction before section ‘1. Installation’ helpful. https://wiki.archlinux.org/title/Chromium -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-05-07 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Snap, Flatpack, or traditional install?
Hi Peter, > Can anybody point me to a discussion of the relative merits and cons > of these different software formats? Try a search for 'comparison of snap, flatpak, and appimage'. That turns up a few recent articles on DuckDuckGo at major Linux articles sites. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-04-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] In-person meetings
Hi, Hugh wrote: > Was it not the Kings Arms in Wallisdown where we used to meet? For a list of venues used followed by a partial list of dates of meetings and their venues, see https://dorset.lug.org.uk/wiki/doku.php?id=meetings:pub -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-04-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Kubuntu Audio settings jumping around.
Hi Peter, > Done it. I HAVE MY SOUND BACK. I was following > https://itsfoss.com/fix-sound-ubuntu-1304-quick-tip/ and it worked. > > Not sure about the mic yet. Regarding testing your audio in Jitsi, which you mentioned last night, there is an Android Jitsi app so you could install that on a device and have a wife or grandchild give you feedback whilst you play with the PC's set up which needs debugging. Also https://wiki.archlinux.org/title/Sound_system might be useful for information on what programs do and how to test bits of the system. It does require knowing what alternatives your Kubuntu system is using, e.g. PulseAudio or PipeWire. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-04-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Kubuntu Audio settings jumping around.
Hi Peter, > I have a CMI8738 Audio card in my PC, and when I look at the Audio > settings the options for different 'devices' are jumping all over the > place and changing. I can't hit one long enough to disable it. Any > ideas how I resolve this? What's changed? - Have you had options for that audio card which you could happily change in the past? - Is it possible there are two competing audio systems wanting to take control of the hardware? - Does ‘sudo -i dmesg -Hxw’ show anything interesting as all this jumping is happening? It will keep displaying new kernel log messages as they arrive. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-03-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Next Meeting - One Week Tonight
Hi Terry, > Unless the forecast changes significantly between now and then, I'll > be going to the Midlands next week, so I probably won't be around > again. Peter emailed the list saying it looked like last month's meeting didn't happen. Andrew told me privately that he turned up, no one else did, so he left. When I popped in later, Clive, Hamish, and Hugh were present. My guess is Jitsi's new-ish requirement for a moderator to open a ‘room’ by authenticating delayed the start of the meeting. Meanwhile, everyone is kept waiting for a moderator to arrive and some give up before he does. Presumably, you're are normally the moderator when you attend and so it's a surprise to the others that it's required and one of them has to finally take it on for the meeting to start? I thought by raising the issue, other attendees might be more aware of the requirement and step in when you're not there. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-03-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Changed IP address lost NAS, but........
Hi Tim, > My Linux box is the only NFS connections. ... > > would is save to remove the 192.168.1.1/24 entry? Yes, I think so. - Those entries are only for NFS exports. - You think only one machine is an NFS client. - You don't have any machines on the 192.168.1/24 network. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-02-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Changed IP address lost NAS, but........
Hi Tim, > > What is the IP address of the Linux machine? It is a 192.168.18/24? > > ‘ip a’ will show the address of each network interface. > > > > ‘showmount -e 192.168.18.150’ may be a useful test as well as > > ‘rpcinfo 192.168.18.150’. ... > $ ip a ... > 2: enp0s25: mtu 1500 qdisc fq_codel state > UP group default qlen 1000 > link/ether 3c:97:0e:a2:0f:e8 brd ff:ff:ff:ff:ff:ff > inet 192.168.18.34/24 brd 192.168.18.255 scope global dynamic > noprefixroute enp0s25 > valid_lft 43835sec preferred_lft 43835sec > inet6 2a0e:cb01:8c:7400:3ed0:59ac:9748:6714/64 scope global dynamic > noprefixroute > valid_lft 477sec preferred_lft 477sec > inet6 fe80::9e5b:2313:8e2c:e6e/64 scope link noprefixroute > valid_lft forever preferred_lft forever So the IPv4 address of your NX1 laptop is 192.168.18.34/24. That's in your new 192.168.18/24 network, which is good. > $ showmount -e > clnt_create: RPC: Program not registered No, my showmount command included an IP address. > and this for the ssh terminal > > admin@diskstation:~$ showmount -e > /Volume1/Data 192.168.1.1/24 Ah, good. If the NAS is 192.168.18.150 then you've effectively done the showmount I was after by running it on 150 itself. But I still suggest you do ‘showmount -e 192.168.18.150’ from NX1 to confirm it gives the same result. > Is this the /etc/exports we were are looking for? It's a subset of what would be in it. I think the NAS, 192.168.18.150, AKA diskstation, is reporting through showmount that /Volume1/Data may be mounted by 192.168.1.1/24. I'm not quite sure why the last byte of 1 is there given the /24 masks it off. 192.168.1.0/24 looks to be equivalent to me. But your laptop, NX1, is 192.168.18.34/24 which is a different network. The NAS won't let a 192.168.18/24 mount it as it's not 192.168.1/24. So you need to check your other machines which can mount it are using NFS rather than something else which has its own different set of checks. And if it's only the NFS machine having problems then alter the NAS to allow NFS mounts from 192.168.18/24 instead of 192.168.1/24. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-02-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Changed IP address lost NAS, but........
Hi Tim, > I have checked through all the relevant network settings on the NAS > and they are reporting the correct IP and Gateway Address. The NAS may have the equivalent of /etc/exports which can limit the IP addresses which can mount. > $ mount /media/nas > mount.nfs: access denied by server while mounting > 192.168.18.150:/volume1/Data What is the IP address of the Linux machine? It is a 192.168.18/24? ‘ip a’ will show the address of each network interface. ‘showmount -e 192.168.18.150’ may be a useful test as well as ‘rpcinfo 192.168.18.150’. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-02-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Suggestions for distro to run email server and POP3/IMAP.
Hi Paul, > but in terms of keeping things up to date I use Watchtower. Thanks, found it. https://containrrr.dev/watchtower/introduction/ > All this is fairly new stuff for me, and I've been out of things for a > couple of years Sorry to hear about your recent troubles. > Some of my Docker stuff is available to look at on Gitlab as snapshots > of what I'm actually playing with in a private repository. I've tried to > put decent notes with the config files: > https://gitlab.com/aptanet/docker-compose-files Thanks again. Poking around from there led me to things new and things forgotten. - https://doc.traefik.io/traefik/ Traefik is an open-source Edge Router that makes publishing your services a fun and easy experience. It receives requests on behalf of your system and finds out which components are responsible for handling them. - https://butlerx.github.io/wetty/ Web plus TTY. - https://homer-demo.netlify.app A static JavaScript home page. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-02-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Suggestions for distro to run email server and POP3/IMAP.
Hi, Stephen wrote: > > There's a list at > > https://github.com/awesome-selfhosted/awesome-selfhosted#communication---email---complete-solutions. ... > Thanks Tristan, Yes, thanks Tristan. Very interesting to have a browse of that to see what's available. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-02-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Suggestions for distro to run email server and POP3/IMAP.
Hi, Tim wrote: > Probably obvious, but when you use containers do make sure you have a > solution in place for keeping current with updates. Not that obvious to me, as you probably suspected. I've not done much with containers before. Seems I need to poll to learn of a later tag on the remote hub. Presumably there's a command method instead of ‘browsing’ as various web pages suggest? And then it's a ‘pull, stop, run’ dance to get the new one running with the containers' data persisting through the image's volumes. ‘apt-get upgrade -u’ does have a certain charm to it, in comparison. Should I use Podman rather than Docker? I see it's daemonless. Would there be much other advantage if I'm just interested in a simple set up? -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-02-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Suggestions for distro to run email server and POP3/IMAP.
Hi Paul,
> you may like to take a look at Docker Mailserver
Thanks Paul, you beat me to it. :-)
$ scan -forma '%{date}' p
Wed, 3 Jan 2024 16:05:51 +
Wed, 03 Jan 2024 16:07:45 +
$
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Re: [Dorset] Suggestions for distro to run email server and POP3/IMAP.
Hi Stephen, > Could you look at the docker image repo and see what base distros are > used for email servers? > > - https://hub.docker.com/search?q=email%20servers Thanks, it reminded me that https://docker-mailserver.github.io/docker-mailserver/latest/ exists. I've never used it but I'm having a look. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-02-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
[Dorset] Suggestions for distro to run email server and POP3/IMAP.
Hi, I'm looking to set up a virtual server to send and receive email for a domain name and store the email for pick-up by users over POP3 and IMAP. Normally, I'd go for Debian and then configure Exim, Dovecot and others to provide a Let's Encrypt TLS certificate, SPF, DKIM, DMARC, SpamAssassin, etc. It's a long list of things to configure, test, and debug. But I was wondering if there's a turn-key off-the-shelf distro which makes this simpler. I'm not bothered about a GUI or web configuration interface. And it doesn't have to be Linux; I know FreeBSD is quite popular in this area, historically because of ZFS. A small-office/home-office distro might be he kind of thing. This isn't for a desktop user but an Internet server; a headless box accessed remotely. I'd like to hear of suggestions and especially any experience, whether good or bad. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-02-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] How Much of Bluetooth is Implemented in the BIOS?
Hi Terry, > Each time I booted into the other OS, I had the same problem. See the Arch Linux wiki. :-) https://wiki.archlinux.org/title/Bluetooth#Dual_boot_pairing Happy new year to the list. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Euro CRA act
Hi Hugh, > A quick skim read: doesn’t apply to open source stuff, and > manufacturers can self certify… I haven't read Tim's links, I just plumped straight for https://en.wikipedia.org/wiki/Cyber_Resilience_Act as an overview. That suggests the exception isn't for by licence, e.g. open source, but instead by how commercial it is. And that's a difficult, subjective line to draw. The Civil Service may argue for ‘alignment’. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Fibre Installation, Routers, telephones
Hi Clive, > Recently we had a visit of workers who were starting to install Fibre > cables to replace the overhead coppers. They said it was going to be > Gigabit capable and it would be cheaper to install the new broadband > connection at the same time. > > Question is what router would I need (no game playing & little > streaming) and if it affects the telephones? You need to determine what's on offer and from whom, whether it's optional to switch or mandatory, and if optional whether you want to. A few terms and definitions which might help with your research. I think you use to work for the G.P.O. so it's only the new stuff you need find out about. :-) - ADSL was copper wire all the way from the telephone exchange, through the green ‘junction’ cabinet on the pavements, to the house's master socket. - FttC, fibre to the cabinet, replaced the first leg of copper from telephone exchange to the green cabinet. No change to the house's wiring is needed to upgrade to this but a router which understands FttC is required; an old ADSL router will not do. - FttP, fibre to the premises, takes FttC and replaces the remaining stretch of copper from the green cabinet to the house's master socket. This means the engineer must alter the house. Either by replacing the existing master socket, or putting a new one in alongside or elsewhere if you prefer or don't object to what's easier for him. Again, a router which handles FttP is needed. And unlike FttC, an ordinary POTS telephone no longer fits or works in the new master socket. You either need to upgrade to compatible phones or use a POTS socket provided by the FttC router. Lastly, no power is supplied over fibre, unlike copper, so the connection stops working in a power cut. If you have ‘care alarm’ hardware or similar then I think the supplier has to provide a battery back-up solution if they're forcing your to move to FttP. Because FttP is faster, your monthly rental may be more. That may be one reason to put off the upgrade. Having the hassle of a site visit and equipment incompatibility is another. I think the Government has set a target of 2025 to move everything to FttP. ‘Choosing a landline provider’ at https://www.citizensadvice.org.uk/consumer/phone-internet-downloads-or-tv/switch-broadband-phone-or-tv-provider/ and Ofcom's https://www.ofcom.org.uk/phones-telecoms-and-internet/advice-for-consumers/future-of-landline-calls may be helpful. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Dual Boot Woes
Hi Terry, > I suspect most people start with Windows and then install linux, but > I already have a valid Kubuntu 23.10 installation, so (of course) > Windows overwrote the existing boot menu and the machine simply booted > into Windows with no choice given. > > I had expected this and believed that it could be fixed using > grub-update. I was able to access the boot menu provided by the BIOS > (F12 on this machine) and got back into Kubuntu OK, but when I ran > grub-update that didn't work. I then ran grub-probe and the Windows > partition showed up OK, but that didn't allow grub-update to work. A read of https://wiki.archlinux.org/title/Dual_boot_with_Windows may be interesting, despite it being Arch Linux. One issue the whether the disk is now MBR or UEFI formatted. The page covers finding out what Windows thinks and configuring dual-boot with Linux going first. They may give some pointers of what to examine. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Low voltage power supply barrel connectors
Hi Peter, > Does anyone know of a chart that gives part numbers or anything > similar for barrel connectors. https://en.wikipedia.org/wiki/Coaxial_power_connector#Standards is along those lines. > We have determined that it is 5.5mm O.D, and we have an unlabelled > drill bit that just fits the inside hole, but trying to find the right > one to order is stumping me. That list of standard sizes has two IEC Type A and one EIAJ with 5·5 mm O⌀. Internal diameters are 2.1, 2.5, and 3.4 mm. You might be able to eyeball 0.4 mm difference when placing the drill bit against a ruler. Or get drill bits of known close size, e.g. 2, 2.5, and 3 mm, and judge by finger and thumb tips. If you've done too much manual labour, find someone with soft hands and have them do repeated blind tests until they're consistent. I'd bet a little on Tim's resource being right and it's 2.5 mm. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Off Topic - Android Advice Needed
Hi Terry, > I need to move Memory-Map into the "All the time" group, but if I > click on the App icon, I am only offered "Allow only when using the > App", "Ask everytime" or "Don't allow". https://developer.android.com/develop/sensors-and-location/location/permissions looks to be of interest, even if it doesn't give a direct answer. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Firewall question
Hi Tim, > > sudo -i ss -p dst 66.39.101.110 > > This did not return anything You need to run it when Wireshark shows traffic of interest, giving the relevant remote IP address. > Is this the expected actions of a Private VPN?? All VPNs are private. :-) It depends what your VPN aims to do and how it does it. Perhaps sending traffic to port 80 of a variety of remote IP addresses is intended to squeeze through any local restrictions. Port 80 is ‘normal’ being HTTP, though hopefully most traffic is HTTP over TLS, port 443, these days. Having multiple IP addresses might be load balancing at the other end or trying to stop simple IP-address blocking. Though the ones you initially complained about were all in a /24 so easy to block as 256 in one go. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Firewall question
Hi Tim, > This was about 12 minutes ago That shows a local TCP port 56946 talking to remote port 80 on 185.151.30.148. I can also talk to that remote port. $ curl -sSvg http://185.151.30.148; echo * Trying 185.151.30.148:80... * TCP_NODELAY set * Connected to 185.151.30.148 (185.151.30.148) port 80 (#0) > GET / HTTP/1.1 > Host: 185.151.30.148 > User-Agent: curl/7.65.0 > Accept: */* > * Mark bundle as not supporting multiuse < HTTP/1.1 200 < cache-control: no-cache < content-length: 9 < content-type: text/plain < x-via: LHR2 < * Connection #0 to host 185.151.30.148 left intact It works! $ It does not mean the remote end initiated the TCP connection and being port 80, the standard HTTP port, this is unlikely. The local port 56946 is a typical port number for an outgoing connection where the port number does not matter. I don't know how well ufw, which is designed to protect the machine from the outside world, can help in stopping TCP connections which originate from within the machine. Investigate what processes are talking to the remote IP address at the time of the packets. sudo -i ss -p dst 66.39.101.110 If it's a browser then check if there are service workers running or tabs updating a page. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Firewall question
Hi Tim,
> State: Listen
> Recv-Q: 0
On all interfaces:
> Send-Q Local Peer Process
> 100 0.0.0.0:smtp:25 0.0.0.0:* users:(("master",pid=3664,fd=13))
> ino:39331 sk:7 cgroup:/system.slice/system-postfix.slice/postfix@-.service <->
> 100 [::]:smtp :25 [::]:* users:(("master",pid=3664,fd=14))
> ino:39332 sk:f cgroup:/system.slice/system-postfix.slice/postfix@-.service
> v6only:1 <->
> 40960.0.0.0:sunrpc :111 0.0.0.0:*
> users:(("rpcbind",pid=771,fd=4),("systemd",pid=1,fd=35)) ino:17782 sk:3
> cgroup:/system.slice/rpcbind.socket <->
> 4096[::]:sunrpc:111 [::]:*
> users:(("rpcbind",pid=771,fd=6),("systemd",pid=1,fd=37)) ino:23838 sk:c
> cgroup:/system.slice/rpcbind.socket v6only:1 <->
> 100 0.0.0.0:4000 0.0.0.0:* users:(("nxd",pid=3425,fd=3))
> uid:130 ino:37538 sk:9 cgroup:/system.slice/nxserver.service <->
> 100 [::]:4000 [::]:* users:(("nxd",pid=3425,fd=4))
> uid:130 ino:38572 sk:10 cgroup:/system.slice/nxserver.service v6only:1 <->
> 128 [::1]:ipp :631 [::]:* users:(("cupsd",pid=1036,fd=7))
> ino:22359 sk:d cgroup:/system.slice/cups.service v6only:1 <->
> 128 [::1]:7001[::]:*
> users:(("nxnode.bin",pid=4738,fd=16)) uid:1000 ino:43356 sk:e
> cgroup:/user.slice/user-1000.slice/session-c3.scope v6only:1 <->
Only on the localhost interface:
> 4096127.0.0.53%lo:53 0.0.0.0:*
> users:(("systemd-resolve",pid=772,fd=14)) uid:101 ino:21970 sk:4
> cgroup:/system.slice/systemd-resolved.service <->
> 128 127.0.0.1:ipp :631 0.0.0.0:* users:(("cupsd",pid=1036,fd=8))
> ino:22360 sk:5 cgroup:/system.slice/cups.service <->
> 128 127.0.0.1:667 0.0.0.0:* users:(("darkstat",pid=1124,fd=9))
> ino:32379 sk:8 cgroup:/system.slice/darkstat.service <->
> 128 127.0.0.1:70010.0.0.0:*
> users:(("nxnode.bin",pid=4738,fd=17)) uid:1000 ino:43357 sk:6
> cgroup:/user.slice/user-1000.slice/session-c3.scope <->
> 100 127.0.0.1:12001 0.0.0.0:*
> users:(("nxnode.bin",pid=4738,fd=14)) uid:1000 ino:34811 sk:a
> cgroup:/user.slice/user-1000.slice/session-c3.scope <->
> 100 127.0.0.1:23585 0.0.0.0:*
> users:(("nxserver.bin",pid=1040,fd=20)) uid:130 ino:31733 sk:b
> cgroup:/system.slice/nxserver.service <->
> 100 127.0.0.1:25001 0.0.0.0:*
> users:(("nxclient.bin",pid=5149,fd=6)) uid:1000 ino:40720 sk:2
> cgroup:/user.slice/user-1000.slice/session-c3.scope <->
> 50 127.0.0.1:35335 0.0.0.0:*
> users:(("pia-daemon",pid=1044,fd=37)) ino:44489 sk:1
> cgroup:/system.slice/piavpn.service <->
>
> PIA is a VPN service
> NX is Nomachine
You wrote ‘they use various port number around the 42000 to 49500 area’
but no process is listening on a TCP port in that range so Wireshark
can't be showing a TCP connection to one of those ports.
Have I got it the wrong way around and 42000-49500 is the source port
range at the remote end? If so, what's the destination port, i.e. the
port on your machine? And is it definitely TCP? There should be a
process listening on it.
I see you have Sun RPC running. https://en.wikipedia.org/wiki/Portmap
Is that because you use NFS or something? What protocols does that know
about? What's the output of
sudo -i rpcinfo -p
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Cheers, Ralph.
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Re: [Dorset] Firewall question
Hi Tim, IP hostnameinout total last seen > 98.159.234.100 chrysippo.dreamsinheels.com377,452,876 8,790,117,140 > 9,167,570,016 2d 18h 38m 35s > 98.159.234.101 reformidans.dreamsinheels.com 231,512,992 4,458,161,590 > 4,689,674,582 3d 21h 18m 8s > 98.159.234.54 posset.dreamsinheels.com 196,503,575 3,748,136,401 > 3,944,639,976 2d 2h 41m 11s > 98.159.234.72 pecunias.dreamsinheels.com 207,944,151 3,507,655,611 > 3,715,599,762 2d 3h 6m 12s > 98.159.234.157 aliquod.dreamsinheels.com 132,080,873 2,002,741,007 > 2,134,821,880 11h 53m 38s > 98.159.234.20 iustitiam.dreamsinheels.com 87,937,813 1,906,705,751 > 1,994,643,564 21h 14m 53s ... > While I don't seem to have a list of live connections it is still making > connections, I checked and they are showing in Wireshark when I monitor > traffic A TCP connection is being established after the full normal handshake? As opposed to an incoming packet attempting to start a connection but not progressing? If so, a program must be actively listening on the same TCP port to accept the connection. What's the output of sudo -i ss -tlpe > Here is a sample of one of the rules I have come up with: > > -A ufw-user-logging-output -p tcp > -d 185.151.30.148 --dport 42474 > -s 185.151.30.148 --sport 42474 > -m limit --limit 3/min --limit-burst 10 > -j LOG --log-prefix "[UFW BLOCK] " That looks like a rule to log something about the packet. Have you enabled logging? https://wiki.archlinux.org/title/Uncomplicated_Firewall#Disable_UFW_logging says how to disable it so I think you do the opposite. That's what https://wiki.ubuntu.com/UncomplicatedFirewall#Basic_Usage suggests. > I don't know how to chnage the single port to any port. Why bother trying to match the port? Just ban anything from IP addresses. I think you just want to drop all packets from sources 98.159.234.0/24 and 185.151.130.148. There are a couple of similar examples in https://wiki.archlinux.org/title/Uncomplicated_Firewall#Black_listing_IP_addresses -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Firewall question
Hi Tim, > Beginning of last week I became aware of a lot of connection to and > from .dreamsinheels.com Where are these showing up? > I have not been able to block the connection, all the sub domains seem > to be coming from 185.151.30.148 ... > Can anybody help with some advise please on how best to block this > access please. If it's a single IP address then add it to the already existing blacklist? Have a skim of https://wiki.archlinux.org/title/Uncomplicated_Firewall for ideas on the kind of thing that can be done. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] IONOS Appears to be Banning the use of Identities (Aliases)
Hi Terry, > > > As I said, I’m surprised that any hosting provider allows > > > otherwise these days. > > > > Hugh, > > > > Can you please explain to me why using an alias (which has > > previously been set up as a mail forward) is a security risk? > > Can anyone explain this? I don't see the issue with a provider of email hosting for your-domain.com to allow you to send and receive emails from all and sundry addresses at that domain. Anti-spam measures SPF, DKIM, and DMARC work at the domain level AFAIK, not at the individual email address. Yes, to talk POP3, IMAP, or SMTP to your provider you will need to authenticate, preferably after establishing a encrypted connection using TLS. It's up to the provider what you authenticate with, e.g. ‘terry’ and ‘letmein’, what mailbox that gives you access to, and what email addresses it lets you send from. Talk to IONOS. If they persist in restricting their service then withdraw your custom to send them a price signal. :-) -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] IONOS Appears to be Banning the use of Identities (Aliases)
Hi Hugh, > I thought all hosting providers did this about 10 years ago? I think Terry's complaint is he has his own domain name and pays IONOS to host it. He expect to be able to use anyth...@his-domain.com. He isn't trying to use other domain names. If switching provider, these two firms have good reputations. https://www.mythic-beasts.com/hosting https://www.aa.net.uk/etc/domains/email/ -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
[Dorset] Strong company and smart meters.
Hi Peter, > 1] anybody heard of this company 'Strong'? > https://www.currys.co.uk/products/strong-atria-mesh-kit-1200-uk-whole-home-wifi-system-triple-pack-10247033.html No, but I found https://strong-eu.com/about-strong/ and https://en.wikipedia.org/wiki/Skyworth. > 2] Smart meters. All I know about ‘free’ smart meters is they are not free. Their cost is ceding more control over the supply. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Church website problem - Firefox - Solved
Hi Clive, > 🙂🙂🙂 > > Thanks Again Ralph! > > 'Allow pages to choose their own fonts' has done the trick! Buttons > now do not have the text over written! I thought I had checked doth > PC/laptop settings to be the same so will now check again the PC to see > if that 'box' is ticked. > > In answer to the other question about cntr-+ or - they both work on both > machines. > > I knew it must be something simple (from a user view) but could not work > out what. > > Thanks Ralph, not sure I understand your explanation but it sounds good > and is (possibly) correct as the 'tick' has done the job. > > If it's OK with you could I pass on your comments to our person looking > after the 'Church' end of the operation as it may help him sometime later. Yes. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Church website problem - Firefox
Hi, I think I've worked out what's happening with the rendering of the website on Clive's laptop. Perhaps it will help someone spot why. The large buttons have text appearing over the top of them. What should be a button with Change Password in it has ‘key_circle’ overlaid. This is intended to be a single character in a ‘symbol’ font chosen by the website. It becomes a single character through a bodge exploiting ligatures within fonts. Intended to render words like ‘piffle’ as ‘piffle’, the feature is abused by defining a ligature for the run of characters ‘key_circle’. This causes the browser to search for ‘key_circle’ through all the text using the font and replace it with the ligature. In this case, it will be a single character that will presumably look like a key in a circle. This being a suitable icon for the ‘Change Password’ button. The font isn't being used. This is the underlying problem. ‘key_circle’ isn't found in the ligature table of the fallback font and so remains as ten characters. Why isn't the font loading on Clive's laptop giving he has disabled all add ons? Ideas please. Clive, in Firefox's settings, can you check General → Fonts → Advanced... → ‘Allow pages to choose their own fonts, instead of your selections above’ is ticked. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Church website problem - Firefox
Hi Clive, I spot the red shield of uBlock Origin. It's worth checking that is configured the same for this site on the laptop and desktop. If in doubt, disable it, just for this site, on the faulty system and reload. Others who do more web stuff than me may have better ideas. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Church website problem - Firefox
Hi Clive, > Inserted screenshot. You did do this because I had to approve the email before it reached the list due to its large size but the images didn't reach me. I think this is due to the mailing list's configuration stripping images. I've just changed this so could you attach the image(s) again. They should get through this time. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Church website problem - Firefox
Hi Clive, > First I thought it was the website programme as I'd only logged in on > the laptop and the website had been updated with a 'Hub' system. Is that https://www.hubb.church ? > On the laptop after logging into the website and then going to the > /'private'/ area log-in, the menu buttons for the various locations, > are overwritten with the programme script names for each button. Do the buttons still work? I'm having trouble visualising what you mean. Could you grab the bit of the screen showing the buttons from the desktop and the laptop? > Both machines are using the same Mint 21.2, Firefox and are fully > updated versions, I can't see any differences in the settings and > don't know how to locate the cause of the script button names to show. Do you have a different set of personal Extensions, visible under Tools → Add-ons and Themes? Are the laptop and desktop both accessing the site through the same Internet connection, e.g. your home broadband. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] My Kubuntu Config is completely trashed
Hi Terry, > I have posted the output of journalctl at > https://hadrian-way.co.uk/Misc/journal.txt. I see the kernel version has changed over time. Does one of these match when problems started? Oct 09 06:27:45 Linux version 6.2.0-34-generic Oct 21 06:49:29 Linux version 6.2.0-35-generic Oct 31 06:45:38 Linux version 6.2.0-36-generic Nov 03 07:10:43 Linux version 6.5.0-10-generic > There are several instances of chromium being flagged prior to the big > crash, which I think was sometime around 0724 (I honestly can't > remember when it occurred, but the next reboot at 0726 stayed up until > 0916, when I think I was trying to get my desktop back. I see a couple of recent ‘-- Boot’ which aren't preceded by an orderly shutdown. The first suggests attempts to reduce power consumption. Nov 13 10:09:05 OptiPlex kded5[2241]: window match: "Bing — Konqueror" :OK Nov 13 10:09:05 OptiPlex kded5[2241]: window match: "Bing — Konqueror" :OK Nov 13 10:09:35 OptiPlex kernel: intel_rapl_common: package-0:package:long_term locked by BIOS Nov 13 10:09:35 OptiPlex kernel: intel_rapl_common: package-0:package:long_term locked by BIOS Nov 13 10:09:35 OptiPlex kernel: intel_rapl_common: package-0:package:long_term locked by BIOS Nov 13 10:09:39 OptiPlex kernel: intel_powerclamp: Start idle injection to reduce power Nov 13 10:09:40 OptiPlex kernel: intel_powerclamp: Stop forced idle injection Nov 13 10:09:41 OptiPlex kernel: intel_powerclamp: Start idle injection to reduce power Nov 13 10:09:43 OptiPlex kernel: intel_powerclamp: Stop forced idle injection Nov 13 10:09:44 OptiPlex kernel: intel_powerclamp: Start idle injection to reduce power Nov 13 10:09:46 OptiPlex kernel: intel_powerclamp: Stop forced idle injection Nov 13 10:09:47 OptiPlex kernel: intel_powerclamp: Start idle injection to reduce power Nov 13 10:09:49 OptiPlex kernel: intel_powerclamp: Stop forced idle injection Nov 13 10:09:50 OptiPlex kernel: intel_powerclamp: Start idle injection to reduce power Nov 13 10:09:52 OptiPlex kernel: intel_powerclamp: Stop forced idle injection Nov 13 10:09:53 OptiPlex kernel: intel_powerclamp: Start idle injection to reduce power Nov 13 10:09:54 OptiPlex kernel: perf: interrupt took too long (3163 > 3157), lowering kernel.perf_event_max_sample_rate to 63000 -- Boot ca7b1b0ebca14ef593ca63664a8ef61c -- Nov 13 10:11:30 OptiPlex kernel: microcode: updated early: 0x23 -> 0x2f, date = 2019-02-17 The second just cuts off mid journalling. Nov 14 06:56:28 OptiPlex systemd[1]: Starting update-notifier-download.service - Download data for packages that failed at package install time... -- Boot 28f4f4d1397f4835a7c248aa9505aba1 -- Nov 14 06:57:30 OptiPlex kernel: microcode: updated early: 0x23 -> 0x2f, date = 2019-02-17 Is the PSU in your desktop capable of supplying the whole machine at full pelt, including all the peripherals? It might explain the unexpected shutdown when the machine was highly loaded for a while. Though of course what you really want is to stop the runaway load. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] My Kubuntu Config is completely trashed
Hi Terry, > I think that it simply ran out of memory after maxing out the CPU > cores for a minute or two. I'm surprised a Linux machine is configured to shutdown on persistent high CPU or memory load. Rather, the kernel's out-of-memory killer will kick in and guess a process to kill to free memory. It sometimes nobbles the wrong horse. Perhaps it sent some vital process to the glue factory which initiated an orderly shutdown, but I doubt it. Could it be the graphics driver in the kernel which is running amok? Chromium will be making it work hard by compositing lots of pixel rectangles. https://superuser.com/questions/1716854/disabling-gpu-compositing-for-all-chrome-and-electron-instances-on-a-mac You might find some indication of past problems with ‘sudo -i journalctl’. It will place you in less(1). There's the date to go by and you can search with ‘/’, e.g. ‘oom-killer’. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] My Kubuntu Config is completely trashed
Hi Terry, > However, having obtained the required package, installation failed > when I tried to install it. It seems that even when a package file is > available locally, apt still tries to access the Internet (presumably > to check dependencies). It does attempt to fetch the local file, but > flags a 'Permission denied' error. I used: > > sudo apt install ./network-manager_1.44.2-1ubuntu1.2_amd64.deb apt(8) for ‘install’ runs apt-get(8) and that wants a package name. To use that file with apt, you'd first have to place it where apt-get expects to find it if it had already been downloaded. And that place is where locate(1) records it used to be. Or, you have bypass APT and install a file with sudo dpkg -i network-manager_1.44.2-1ubuntu1.2_amd64.deb But it's been so long since I dealt with Debian packages and APT that I forget if this has downsides. If it does work and the network works then you could re-install with APT afterwards. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] My Kubuntu Config is completely trashed
Hi Terry, > Does anyone know how to get the original .deb file for Network Manager? > I found reference to it at: > > /var/cache/apt/archives/network-manager_1.44.2-1ubuntu1.2_amd64.deb That version appears to be from https://packages.ubuntu.com/mantic-updates/network-manager -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] My Kubuntu Config is completely trashed
Hi Terry, > However, before I could complete that, the system shut itself down. That's surprising. Did it look like an orderly shutdown or did the power just cut? My only guess at a cause is overheating though I'd normally expect that to just cause the CPU to be throttled in speed. Is this a laptop on a hot lap or something with adequate cooling? > Normally, I have found that restarting the system brought it back after > a bit of disc checking within the boot process Is that ‘normally’ because the system has shut itself down before? > my wired connection seems to have lost its configuration. Has the machine booted such that it understands there is a wired network interface, i.e. it has loaded the drivers? ‘ip l’ should like the known network ‘links’, i.e. interfaces. ‘ip a’ will show any addresses assigned to them. A wired network interface can be configured at the command line but that may be a bit long winded. https://wiki.archlinux.org/title/Network_configuration -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] High CPU Usage When a News Pages Opened in Chromium
Hi Terry, > This mainly happens with sites that use a similar framework to the > Dorset Echo, (eg Daily Echo, etc) Does the CPU maxing out occur if you visit the Daily Echo directly, ending up at the same story which Google News mentioned? > I'm pretty sure that the problems isn't entirely to do with Chromium. Do you have any plugins, whatever Chromium calls them, which might be blocking some JavaScript, etc? Perhaps what remains is not expecting the resulting half-loaded page and spinning in a CPU and memory-consuming loop. Run ‘dstat -tcdngmy’ in a sufficiently wide, visible terminal window and see if that helps show whether the problem is CPU or paging. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-12-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Is "dd" adequate for cloning a disk?
Hi John, > > sudo -i parted /dev/sda unit B print > > This gives: > > Model: ATA CT500MX500SSD1 (scsi) > Disk /dev/sda: 500107862016B > Sector size (logical/physical): 512B/4096B > Partition Table: msdos > Disk Flags: > > Number Start End Size Type File system > Flags > 1 1048576B 537919487B 536870912B primary fat32 > boot > 2 538967040B 498109251583B 497570284544B extended > 5 538968064B 482185576447B 481646608384B logical ext4 > > Presumably, the PT should not be msdos? No, that could be fine. It's a 512 MiB partition. You might find it mounted once the system boots if you're curious what's in it. Partition 2 reaches furthest into the disk but still leaves a large gap at the end should you want to use GPT. $ units 500107862016B-498109251583B 'GiB;MiB;KiB;B' 1 GiB + 882 MiB + 24 KiB + 1 B $ > > > gdisk says: > > > > > > Partition table scan: > > >MBR: MBR only > > >BSD: not present > > >APM: not present > > >GPT: not present > > > > > > *** > > > Found invalid GPT and valid MBR; converting MBR to GPT format > > > in memory. > > > *** ... > > > I've had no problems so far, so the question is: can I Carry On > > > Regardless? Yes. I think gparted is being misleading. It says GPT is not present but then says it found an invalid GPT. I think it didn't find one and your booting works happily without out. As you were, carry on. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-11-07 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Middle Mouse Button No Longer Double-clicks or Selects
Hi Terry, > If I run xinput --test-xi2 --root in a console, I get loads of output > when Press the left or right mouse buttons, but nothing when I press > the middle button. However, I've read somewhere that middle click > paste is an xorg built-in function and according to echo > $XDG_SESSION_TYPE I am running x11. The old-school way to test this is to run xev(1), probably found in package x11-utils. Just run it in a terminal window on your desktop. A small window white window appears. Events that window receives are spewed to the terminal. Move the mouse over it and try each of the buttons in turn. You should see a ButtonPress and a ButtonRelease event. It sounds like your middle button's flaky. Consider giving it a clean inside or whacking the mouse into the palm of your hand a couple of times. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2023-11-07 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
