Re: [OCLUG-Tech] what is the purpose of the "-w" option of "sysctl" command?

Robert I am not close to my console, so this is a guess.. What is in your /usr/lib/sysctl.d/00-system.conf file? Rick On March 14, 2018 7:23:24 AM EDT, "Robert P. J. Day" wrote: > > just noticed something odd ... on my fedora 27 system, the man page >for sysctl reads under PARAMETERS: > >va

Re: [OCLUG-Tech] is there a FHS/LSB rationale for installing in /usr/bin vs /usr/sbin?

Robert Thanks for the 'nitpicky pedantry', I generally learn from these threads. This is from distant memory. Sbin means system binaries, implying that they are for sysadmins not for (l)users. The sysadmin can explore sbin utilities more easily when they are in a separate directory. Also, when t

Re: [OCLUG-Tech] does anyone still use "dump" for backups these days?

How are dvd's for archiving photos? I have been betting on them. They would not survive a fire, but they are compact so you can send a copy to a relative for safekeeping. I suspect that they would survive flooding. Maybe we will still have dvd drives in ten years! Otherwise we will have to copy

Re: [OCLUG-Tech] does anyone still use "dump" for backups these days?

Robert Amanda is built on some bash scripts so you can understand and modify it to your needs. We used it at Cirrus. Bacula might be a strong contender. Cheers -- Rick On February 22, 2018 10:33:24 AM EST, "Robert P. J. Day" wrote: > > i'm prepping to teach 5 days of compTIA linux+ next week,

Re: [OCLUG-Tech] reconfigure laptop disk for linux?

Hi John You would be doing the change to extended for one of the partitions using fdisk or similar? Yes, risky, but the risk is all in your fingers. Can you practice on some other surplus PC? About the backup to removeable disk: I would prefer to use dd for this, just because I know it better.

Re: [OCLUG-Tech] Linux Digest, Vol 155, Issue 5

Alan IBM / Lenovo is supposedly supported by Redhat. Dell is a good bet too. Google would find you better info than this email list. But as Peter says, Ubuntu has a much better UI. Redhat is focussed on reliability, virtualization and enterprise server systems. Cheers -- Rick On December 22, 2

Re: [OCLUG-Tech] need some advice on how to prune my current wiki so i can move it

Of course you would do a backup before monkeying with it. Google "mediawiki delete old revisions" to find relevant extensions and features. On March 31, 2017 3:51:34 PM EDT, "Robert P. J. Day" wrote: > > i'm in the process of relocating my domain crashcourse.ca and, >apparently, one of the da

Re: [OCLUG-Tech] need some advice on how to prune my current wiki so i can move it

Robert: You could do a select count (*) from table; for tables you think might be large. Or select * from table limit 2; to see the first two rows of a table and decide how 'heavy' a row is. Mysqlworkbench is good for browsing. And does the wiki have a control panel other than cpanel? Then you

Re: [OCLUG-Tech] looking for a new host for my web site for april 1

And the latest Fedora stuff, with lots of yet to be discovered vulnerabilities. Fun! On March 10, 2017 10:01:16 AM EST, Alex Pilon wrote: >On Fri, Mar 10, 2017 at 06:44:25AM -0500, Rick Leir wrote: >> Your other option is that many list members have a server in their >basement,

Re: [OCLUG-Tech] looking for a new host for my web site for april 1

Hi Robert I have had luck with an AWS virtual server. It is free for the first year, and will likely be cheap after that. The minumum config is more than enough for what I do. The only reliability problem was when they pushed out a critical security patch in August and I had to restart it ma

Re: [OCLUG-Tech] Server to host high school project?

Hi Rob, There are a few sites where you can try it out in the following list. I have not checked them myself. https://list.ly/list/euz-15-vulnerable-sites-to-legally-practice-your-hacking-skills On 2016-12-27 04:35 PM, Rob Echlin wrote: HiMy friend Bahman's son is working on a high school pro

Re: [OCLUG-Tech] Anyone know of an open source rack monitoring project?

> I am looking at possibly using 1-wire stuff with rPi to put together a > I did a fair bit of googling last night (over an hour) and could not Wikipedia mentions OWFS, 1_wire file system. Maybe that could be a starting point. Or the JavaButtons given out in 1998. -- Sent from my Android devic

[OCLUG-Tech] OCLUG-Tech] a couple (simple?) systemd questions

> i really should know this stuff, but ... > 1) is there a way to make sure a service is the *last* service invoked when going to multi-user mode? Systemd is designed to run service inits in parallel wherever there is no prerequisite. If you reboot at the end of inits, .. loop! What are you

Re: [OCLUG-Tech] setting up a Linux development environment

> training clients asked whether there are > any docs to lead them through how to set up a proper linux > development environment if their org has never done that Maybe the Yocto docs, or OpenEmbedded, or the device tree docs if you are looking at kernel dev. But the first challenge is to loc

Re: [OCLUG-Tech] recommendations for spell-checking sizable source code base?

Maybe this? https://www.languagetool.org/ The problem with using any general purpose tool would be automation: you do not want to work through the results manually. Or maybe you could find a way to plugin to LXR or LXRng or OpenGrok. Cheers -- Rick http://sourceforge.net/projects/lxr http:/

Re: [OCLUG-Tech] still confused about the use of (now obsolete) "-I-" option of gcc

Hi Rob Yes, I got your post. But after all the time I have spent with gcc, with all the options, I am mostly happy with just -wall. Yes, there is a distinction with #include saying 'these are system directories' vs 'these are personal or project directories'. But the defaults are fine for me.

Re: [OCLUG-Tech] Windows 10

>> On Fri, 2016-03-04 at 19:47 +, j...@messier.ca wrote: >>> I solved it, after some advice from yesterday's meeting. The first?? >>> (and easiest) that I tried was to disconnect the Windows hard >disk,?? >>> and retry installing Ubuntu 15.10. I was surprised by That is how I did it: disco

Re: [OCLUG-Tech] multi nic board for OpenBSD

>Is there any place ideally locally where I could pick up a small >multi-NIC board with enclosure to run OpenBSD? maybe you could load OpenBSD onto a router? I never installed it so I am just guessing that it might be a challenge to install. https://news.ycombinator.com/item?id=9482696 http

Re: [OCLUG-Tech] Ubuntu install with Windows 8

There were problems with Ubuntu and Windows8. Perhaps you are seeing something related to this ( it is an old post, with newer comments at the bottom). I noticed this recently when I was installing Ubuntu along with Windows. http://askubuntu.com/questions/221835/installing-ubuntu-on-a-pre-instal

Re: [OCLUG-Tech] OpenStack

Hi JF, John This long document mentions OpenStack in seven places. http://www.ssc-spc.gc.ca/pages/dcc-rad-eng.html If your VMware is already up and running, then you might find it tough sledding to propose a multi-year project to implement OpenStack. Quicker with a few people who have good exper

Re: [OCLUG-Tech] OpenStack

OpenStack is a big complex system which is used for large systems. For most cases Docker is much more practical. But as others have said, what will it be used for. Will you host it yourself? Will you run a mix of OS's? Distributed servers? Size? Uptime constraints? Security? Budget? Schedule?

Re: [OCLUG-Tech] SSD wear

On January 13, 2016 7:56:59 AM EST, Spencer Cheng wrote: > >> On Jan 13, 2016, at 7:39, Rick Leir wrote: >> >>> you likely won't wear out your SSD >> I have been told not to worry about wearing out the SSD. > >SSDs do fail. I had one fail on me while o

Re: [OCLUG-Tech] SSD wear

> you likely won't wear out your SSD At work I am doing Docker builds onto a SSD, and Docker's layered images are using lots of disk. And Solr ingests that run half a day, using 75G virtual RAM (that goes to swap). I have been told not to worry about wearing out the SSD. Cheers Rick -- Sent f

Re: [OCLUG-Tech] as-is

And you can point at a box, say 'how much is that with 4g ram and 160g disk', watch the bios at boot, and hand over a few 20's. You are taking a bit of a chance, and can end up with scrap metal, but it worked out for me. One of the guys there cares enough to match up the ram simms for me. Oh, a

Re: [OCLUG-Tech] Trailing edge as-is shop

> TTE used to take back things that they can sell for cheap Yes, they recycle or resell electronics. All sorts of stuff. And if you are installing Linux on a budget you can get a core2 duo or similar PC for $100 - $200. Some servers are for sale too. Or a Playbook 32 anyone? On January 10, 2016

[OCLUG-Tech] Re windows in a VM

You could google 'windows update troubleshooter' and try microsoft's tool. Microsoft used to save some identifiers from your system such as MAC and hd serial and other hardware id's to tie the license to a machine. What happens if they do that in a VM? Cheers Rick On July 7, 2015 12:00:01 PM E

Re: [OCLUG-Tech] Linux Digest, Vol 119, Issue 2

On 02/11/2014 12:00 PM, linux-requ...@lists.oclug.on.ca wrote: copy email sent through it using SMTP to the [Gmail]/Sent folder. Has anybody managed to do something similar with Postfix? Yes, Postfix also saves to the sent folder. My experience is with postfix's vmail support, with Dovecot provi

Re: [OCLUG-Tech] dd disk

data are the markers that indicate the start of the next block, so at least part of the disk is corrupted at a very low level. Or the read head is non-functional. Did you try dd skip=BLOCKS to jump past block zero and try another track? Good luck -- Rick -- Rick Leir rick (.) leir (at

Re: [OCLUG-Tech] Linux Digest, Vol 113, Issue 4

On 03/05/2014 12:00 PM, linux-requ...@lists.oclug.on.ca wrote: if sending to certain domains. Which domains bother you? I find that Live.com/sympatico/hotmail (when receiving mail from me) is likely to tag my mail as junk if it is not sent via an ISP's mail hub. ___

Re: [OCLUG-Tech] intercept email

On 02/05/2014 12:55 AM, linux-requ...@lists.oclug.on.ca wrote: If someone has an existing email mailbox specified by a particular email address, can anyone on this list imagine any easy way that people can intercept email sent to that address without knowing the person's password at the mailbox s

Re: [OCLUG-Tech] dynamic DNS

On 25/04/2014 12:00 PM, linux-requ...@lists.oclug.on.ca wrote: I have a couple of domains that I host on my server with Teksavvy as my ISP. I use dyndns.com for DNS, but I was going to try and move away from dyndns. I use zoneedit.com for free DNS. My site blinkmonitor.com is on a dynamic

[OCLUG-Tech] Re ant

Google includeantruntime. The first hit is an answer at stackoverflow that looks useful. -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. ___ Linux mailing list Linux@lists.oclug.on.ca http://oclug.on.ca/mailman/listinfo/linux

Re: [OCLUG-Tech] Linux Digest, Vol 111, Issue 5

On 08/03/2014 12:00 PM, linux-requ...@lists.oclug.on.ca wrote: i got the attached -- a proposal for a new linux firewalls book (with the identifying preamble removed). i'm going to go over it this weekend, but i'm curious as to what others think -- if you were looking for a linux firewalls boo

[OCLUG-Tech] RHEL/Centos compatibility

Could it be the NIC giving you trouble? It would need to support PXEboot. If so, you would just add a PCI NIC. But the onboard LAN should work fine. Do you need to enable PXEboot in the BIOS? I found it difficult to install Centos from USB key. But a DVD install should work fine. %<---

Re: [OCLUG-Tech] install centos 6.5 on USB

On 30/12/2013 12:00 PM, linux-requ...@lists.oclug.on.ca wrote: i'm given a choice of where the install image is, so i select "NFS directory", at which point i see simply "Waiting for NetworkManager to configure wlan0" ... and ... "There was an error configuring your network interface." I used HT

Re: [OCLUG-Tech] books

From: "Michael P. Soulier" To: Bill Strosberg Cc: linux@lists.oclug.on.ca Subject: Re: [OCLUG-Tech] books Message-ID: <20131213180900.gh4...@digitaltorque.ca> Content-Type: text/plain; charset="us-ascii" On 13/12/13 Bill Strosberg said: Don't get me wrong, I love books. But, consider this:

Re: [OCLUG-Tech] books

Books can if well written summarize a topic and get you started with the most useful bits first. By comparison, the internet can be a fire hose. You can have a peek before you buy if it is in the library. Find out what is new at blinkmonitor.com. Some books can have a long waiting list; that is

Re: [OCLUG-Tech] pvdisplay

Our Centos 6.n systems also do not show that line. cheers -- Rick On 18/11/2013 12:00 PM, linux-requ...@lists.oclug.on.ca wrote: one is told that "pvdisplay" will indicate whether a physical volume is currently in use, and if you look at the output there, you can see the line: PV Status

Re: [OCLUG-Tech] suse usb stick

Hi Rob Disclaimer: I do not use SUSE, so take this all as hints only. I am assuming that you booted from the USB stick. You are looking for a text file named *.desktop possibly located in /usr/share/kde4/templates/.source or $HOME/Desktop The .desktop file would contain the name of the instal

Re: [OCLUG-Tech] monitor os

Hi Peter Nagios. For example, here is the iostat plugin: http://exchange.nagios.org/directory/Plugins/Operating-Systems/Linux/check_iostat--2D-I-2FO-statistics/details And thanks for the fridge -- Rick On 12/07/2013 12:00 PM, linux-requ...@lists.oclug.on.ca wrote: The tool would collect the ou

Re: [OCLUG-Tech] Linux Digest, Vol 103, Issue 8

This book is dated. You probably saw it already. cheers -- Rick http://lwn.net/Kernel/LDD3/ i'm currently digging around in the kernel for a better understanding of interrupts and i'm always on the lookout for high-quality online tutorials i can simply swipe for training courses. any recomme

Re: [OCLUG-Tech] Linux Digest, Vol 97, Issue 16

On 22/01/2013 8:14 AM, linux-requ...@lists.oclug.on.ca wrote: > Would anyone happen to know what the usual standard for logging into an > IMAP server is - an email address (some...@abc.com) as username or an > email address prefix (someone) as username? Does it depend on the each > individual IMAP

Re: [OCLUG-Tech] Bluetooth USB

Get a PCI USB card. There are some kicking around at surplus stores. On 25/08/2012 12:00 PM, linux-requ...@lists.oclug.on.ca wrote: > I need to get a gadget that connects the header to a USB socket. > I was thinking of building it but I went to Active Electronics and a USB > socket is $9. __

Re: [OCLUG-Tech] Linux Digest, Vol 92, Issue 9

On 17/08/2012 12:00 PM, linux-requ...@lists.oclug.on.ca wrote: > ARM box running Linux on a fast ARMv7 with SATA support and GigE NIC > interface? ATMV8 would even be better but really scarce. I am mostly > interested in using it as a server. http://fedoraproject.org/wiki/Architectures/ARM/Trimsl

[OCLUG-Tech] Supercard linux

I googled Supercard linux and found a post from 2007 saying that it would work in Wine. > My wife has an idea for a computer project and her all time favorite > software was Supercard on her Mac At Work. She is now equipped with a PC > laptop running Kubuntu. > > Is there any good Linux software

Re: [OCLUG-Tech] DNS

On 05/05/2012 12:00 PM, linux-requ...@lists.oclug.on.ca wrote: > Does anyone know of any affordable DNS services like Zoneedit at 151 Front > Street or elsewhere, with low latency to Ottawa ISPs/clients? I need a I like OpenDNS for many reasons. I have not checked the latency. cheers -- Rick __

Re: [OCLUG-Tech] git

On 24/01/2012 12:00 PM, linux-requ...@lists.oclug.on.ca wrote: >does that sound about right? and is there a single command that > would show all of that new content? thanks. > > rday You would get good answers to this type of question on stackoverflow.com ( I am not saying you don't get good

Re: [OCLUG-Tech] SD card

The big difference between MMC and SD is that the latter has DRM support. It sounds as if that Wikipedia article could use some improvements. Who is up to it? Thanks -- Rick On 21/01/2012 11:19 AM, Bart Trojanowski wrote: > Flash needs bad-block remapping, block refresh, and write levelling. > I

Re: [OCLUG-Tech] SD card

On 19/01/2012 3:10 PM, linux-requ...@lists.oclug.on.ca wrote: > the actual capacity of the SD card was noticeably > less than advertised. From wikipedia: All SD cards incorporate a digital rights management (DRM) scheme. Roughly 10% of the

Re: [OCLUG-Tech] cvs, svn

I like Mercurial. Joel Spolsky has done a tutorial at hginit.com. On 14/12/2011 7:51 AM, linux-requ...@lists.oclug.on.ca wrote: > I was about to take a look at cvs,svn,git,rsync ___ Linux mailing list Linux@lists.oclug.on.ca http:

[OCLUG-Tech] colocation

On 30/11/2011 10:12 AM, linux-requ...@lists.oclug.on.ca wrote: > Or other suggestions for colocation facilities?? Talk to Josh Vautour for hosting in Ottawa, he has an excellent business. http://www.linkedin.com/in/joshuavautour -- Rick ___ Linux mailing

[OCLUG-Tech] SPARCserver 1000 power supply

components need replacing. Am I too hopeful in thinking there might be a spare PS in Ottawa? The machine is 1993 vintage, and most such machines have been recycled long ago. Thanks, Rick -- Rick Leir rick (at)leirtech (.) com 613 828 8289 O 613 878 7870 C http://blinkmonitor.com

[OCLUG-Tech] Re: [oclug-announce] Planet OCLUG

Hi Ian, Does http://blinkmonitor.com/feed/ interest you? It's about tech books from the library. And what is good about the site? Could be improved? cheers -- Rick Ian Ward wrote: As requested [1] I've added a feed-aggregator to the OCLUG web site. The first "planet" is available at http://p