Re: [PLUG] Unprivileged ports to unprivileged ports...

2017-04-21 Thread Nathan Williams
Agree with using DROP for bad traffic. IMO, the only time to expend the
effort to REJECT is if you care about the client.

On Fri, Apr 21, 2017, 19:06 Chuck Hast  wrote:

> I have always liked "drop".
>
> On Fri, Apr 21, 2017 at 6:05 PM, Cryptomonkeys.org <
> lou...@cryptomonkeys.org
> > wrote:
>
> > Typically, connections come from unprivileged ports. The destination is a
> > mixed bag. Some services run on privileged ports, some done. Web and mail
> > are examples of things that run on privileged ports. Databases (mysql
> 3306,
> > postgresql 5432) are examples of things that don’t run on privileged
> ports.
> >
> > Best practice is to either block or drop connections to ports where you
> > aren’t running services. The choice is yours. The difference is that
> block
> > sends a communication back to the sender letting them know communication
> is
> > prohibited, drop does not do this.
> >
> >
> > > On Apr 21, 2017, at 7:02 PM, Michael Christopher Robinson <
> > mich...@robinson-west.com> wrote:
> > >
> > > I'm getting a lot of probes from unprivileged TCP ports to unprivileged
> > > TCP ports on my Internet connected server.  No connections, but I'm
> > > wondering if I should just reject these?  Same for UDP.  What protocols
> > > might I use that would require connection in the unprivileged port
> > > range for both client and server?  I'm not running ftp on this server.
> > > ___
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> > >
> > >
> >
> > --
> > Louis Kowolowskilou...@cryptomonkeys.org
> > Cryptomonkeys:
> > http://www.cryptomonkeys.com/
> >
> > Making life more interesting for people since 1977
> >
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>
>
>
> --
>
> Chuck Hast  -- KP4DJT --
> Glass, five thousand years of history and getting better.
> The only container material that the USDA gives blanket approval on.
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Re: [PLUG] Show of hands/poll on tcpdump

2016-06-27 Thread Nathan Williams
Fair to middling, mostly can find what's needed without searching, but
still regularly search for syntax on advanced matching filters

On Mon, Jun 27, 2016, 5:41 PM Dick Steffens  wrote:

> On 6/27/2016 10:55 AM, Michael Rasmussen wrote:
> >> If asked to self assess your tcpdump comfort level would you reply with:
> >>
> >>* I'm great, what do you need done?
> >>* I'm comfortable, can do capture with filtering
> >>* I'm rusty, but could spin up quick
> >>* Only use it with the man page handy for reference
> >>* tcpwhat?
> >>
> >> Back story after a few responses roll in.
> >>
>
> Well, to provide a floor, "tcpwhat?"
>
> --
> Regards,
>
> Dick Steffens
>
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Re: [PLUG] Considering a new hard drive?

2016-03-08 Thread Nathan Williams
Neat, love these kinds of articles. Have you read any of the Backblaze hard
drive studies? Really interesting HDD reliability data from a massive
dataset. Also very good reading.

On Tue, Mar 8, 2016, 7:06 PM Michael Rasmussen  wrote:

> The best article I've ever seen comparing models.
> Limited to Western Digital only.
>
>
> https://www.pugetsystems.com/labs/articles/Understanding-the-WD-Rainbow-674/
>
> --
>   Michael Rasmussen, Portland Oregon
> Be Appropriate && Follow Your Curiosity
> Interviewer:  Do you ever try to compose so it doesn't sound like Philip
> Glass?
> Philip Glass: I do it all the time and I fail all the time.
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Re: [PLUG] Linux distributions

2015-08-20 Thread Nathan Williams
On Wed, 2015-08-19 at 22:17 -0700, King Beowulf wrote:
 On 08/19/2015 05:51 PM, Nathan Williams wrote:
  I'll echo the endorsement for CentOS 7. It's reasonably new enough
  to offer
  new-ish packages for desktop use, while also being the gold
  standard for
  stability and long term support (EOL in June 2024). Add in EPEL and
  elrepo
  for extras, and you've got a pretty solid system that you won't
  have to
  totally replace every 6 months.
 
  CentOS is no longer an independent project, more like a test bed for
 Redhat.

I'd dispute this phrasing (specifically in re: independence). Red Hat
is indeed a major contributor/supporter, with a majority of seats on
the governance board, but CentOS is and remains a community
led/developed distribution, certainly to a greater extent than e.g.
Ubuntu is independent of Canonical. I have yet to see Ubuntus lack of
independence mentioned as a reason to avoid Ubuntu as an end-user.

As for being a test-bed, it's certainly a more innovative CentOS
community than in the past, but most of that work is going on in SIGs,
so doesn't have a lot of impact for someone using core CentOS and not
one of the SIG-derived products like RDO, Atomic or the Cloud images.

   Being supported for 10 years is great for a server, not so much
 for end-user desktops.  For a desktop, some system files just can't
 be
 upgraded past a certain point without compromising system stability.
 

Agreed. I'd expect a desktop user to upgrade distros on average every 3
-5 years, basically following typical hardware upgrade lifecycles.

  
  In addition, it's got that new-fangled systemd init system that all
  the
  major distros are going to be on within the next year or so, so you
  won't
  end up having a really core piece of the system be different from
  what
  everyone else is running (better supportability if you need help
  down the
  road).
  
  Cheers,
  
  Nathan W
  
 
 the OP may want to hold off on any distro jumping on systemd.  While
 the
 issues and controversy concerning systemd may not mean much to end
 users, it does to DEVELOPERS.  You know, the guys and gals that
 create
 the software that creates a linux distribution and the various
 programs
 we want to use.

I knew I'd regret mentioning this as an advantage the moment I sent it,
and I'm guessing from the tone of the reply that it struck a nerve. If
so, I'm sorry, and I sympathize.

But, given the broad range of distros who are consolidating around
systemd, it seems reasonable to conclude that the majority of the
developers who do build linux distributions are in favor. As you noted,
it probably doesn't matter much to an end-user either way.

What does typically matter quite a lot to end-users, and the reason I
mentioned it at all, is the availability of support for issues. Since
an undeniable majority of Linux users either already are, or shortly
will be using systemd-based distros, I figured I'd mention it as a
point in favor (sticking with the herd), but that's truly the limit of
the degree of the intended endorsement.

Personally, I'm pretty ambiguous about it overall (migrating was rather
unexciting, both for workstation and servers), though I'm happy for
many of the new resource-control capabilities that the integration with
cgroups has made available to me as an administrator.

Regards,

Nathan W


 
 -Ed
 
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Re: [PLUG] Linux distributions

2015-08-19 Thread Nathan Williams
I'll echo the endorsement for CentOS 7. It's reasonably new enough to offer
new-ish packages for desktop use, while also being the gold standard for
stability and long term support (EOL in June 2024). Add in EPEL and elrepo
for extras, and you've got a pretty solid system that you won't have to
totally replace every 6 months.

In addition, it's got that new-fangled systemd init system that all the
major distros are going to be on within the next year or so, so you won't
end up having a really core piece of the system be different from what
everyone else is running (better supportability if you need help down the
road).

Cheers,

Nathan W

On Wed, Aug 19, 2015 at 5:04 PM Michael Rasmussen mich...@jamhome.us
wrote:

 On Wed, Aug 19, 2015 at 01:56:53PM -0700, Nat Taylor wrote:
  On Wed, Aug 19, 2015 at 12:43 PM, Michael Rasmussen mich...@jamhome.us
  wrote:
   On Wed, Aug 19, 2015 at 08:16:39AM -0700, Nat Taylor wrote:
I've been using Arch Linux with the cinnamon desktop.  Works great
 once
   you
get it installed.  I used the guide in Linux Voice magazine.  I
 suggest
reading some of those magazines, and taking a look at
 distrowatch.com .
As mostly a user now I find Linux Mint (LTS versions) with the Mate
desktop manager works great.  For servers I've started moving to
 Debian.
  
   My terse reply of Not Arch was made before seeing this message.
  
   The OP wrote isn't cutting edge. I don't know of a distribution that
 is
   less
   cutting edge than Arch. How they manage to keep it organized and well
   functioning
   is a mystery. But they do. And I get the very current versions of the
 photo
   and video editors that drew me to it.
  
   But if you're not looking for that level of upstream tracking, stay
 away.
  
   OK, pacman is also a very excellent package manager.
  
 
  Looks like it's been 3 years since I installed Arch on this box, never
 had
  a problem with an upgrade,
  although it looks like there are only 12 packages i've installed from the
  AUR, all but three of them done
  by hand (did just install yaourt recently for a more automated process)
 
  I guess it is cutting edge though, I figured it was right up there with
  slackware for ease of installation,
  and learning about linux while you install.  It's always been stable for
 me.
 
  I think I started with mandrake 5 and debian woody, moved to ubuntu for a
  while, then deserted and hopped distros for a while before landing on
 Mint then Arch

 Everything you say agrees completely with my experience. As an added point
 my
 last distro before Arch was Kubuntu LTS and it was a much bigger PTIA to
 maintain.

 My response was based on the OP's stated preferences. No matter how good
 Arch is it's
 not a match for his described target.

 --
   Michael Rasmussen, Portland Oregon
 Be Appropriate  Follow Your Curiosity
 The fastest way to become rich is to socialize with the poor;
 the fastest way to become poor is to socialize with the rich.
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Re: [PLUG] TONIGHT: August PLUG Advanced Topics: Using Mozilla's Heka project for log and event stream processing

2015-08-19 Thread Nathan Williams
Hi all,

Wanted to send a quick followup to last nights talk.

I realized this morning that I mistakenly pulled up the standby LB node
when we were looking at heka's CPU utilization during the QA (should've
known when the CPU use was on the floor...)

In any case, the *correct* CPU utilization looks more like this:
http://i.imgur.com/SExzwGc.png

Thanks again to all who came, I had a blast!

Cheers,

Nathan W

On Tue, Aug 18, 2015 at 12:54 PM Michael Dexter dex...@ambidexter.com
wrote:


 Portland Linux/Unix Group Advanced Topics Meeting Announcement

 Who: Nathan Williams
 What: Using Mozilla's Heka project for log and event stream processing
 Where: Free Geek, 1731 SE 10th Avenue, Portland (Left Entrance)
 When: Tuesday, August 18th, 2015 at 7pm
 Why: The pursuit of technology freedom
 Stream: http://pdxlinux.org/live/

 Talk: A Practical Introduction to Scalable Stream Processing with Heka
 and how the log and event processing system at Treehouse has evolved
 from a typical Elasticsearch/Logstash/Kibana setup into a Heka-based
 system. We will also discuss the why behind this move and where we are
 headed.

 Heka is an open source stream processing software system developed by
 Mozilla. Heka is a “Swiss Army Knife” type tool for data processing,
 useful for a wide variety of different tasks, such as:

 * Loading and parsing log files from a file system.

 * Accepting statsd type metrics data for aggregation and forwarding to
 upstream time series data stores such as graphite or InfluxDB.

 * Launching external processes to gather operational data from the local
 system.

 * Performing real time analysis, graphing, and anomaly detection on any
 data flowing through the Heka pipeline.

 * Shipping data from one location to another via the use of an external
 transport (such as AMQP) or directly (via TCP).

 * Delivering processed data to one or more persistent data stores.

 https://github.com/mozilla-services/heka

 Nathan is a sysadmin by trade who's been into Linux, automation and data
 for the last 10 years and is currently working at Treehouse as a systems
 developer.

 Calagator Page: http://calagator.org/events/1250468938

 Many will head to the Lucky Lab at 915 SE Hawthorne Blvd. after the
 meeting.

 Rideshares Available

 PLUG Page with information about all PLUG events: http://pdxlinux.org/
 Follow PLUG on Twitter: http://twitter.com/pdxlinux

 PLUG is open to everyone and does not tolerate abusive behavior on its
 mailing lists or at its meetings.

 See you there!

 Michael Dexter
 PLUG Volunteer
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Re: [PLUG] Home Router Recommendations

2015-07-31 Thread Nathan Williams
I'll add my vote for the RT-N66U; I've had one for a bit over a year now,
and it's been pretty solid. The stock firmware's nice, but I ended up
putting beta dd-wrt on it (my wife diagnosed me with chronic fiddler
syndrome...), which also works quite well.

On Fri, Jul 31, 2015 at 7:12 PM John Bartley K7AAY j...@503bartley.com 
john.bart...@gmail.com wrote:

 When I was doing Xbox Net Support for very fussy gamers,  the rigs of
 choice were the ASUS RT-66U and the WNDR3800/3700.

 Also j...@503bartley.com 503.343.9399 or 503.227.8539
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Re: [PLUG] What CMS to use ?

2015-07-13 Thread Nathan Williams
if you can get away with it, i'd suggest a static site generator like
middleman or jekyll. much easier to host and operate, and way fewer
security considerations.

On Mon, Jul 13, 2015 at 1:46 PM Rich Shepard rshep...@appl-ecosys.com
wrote:

 On Mon, 13 Jul 2015, Louis Kowolowski wrote:

  You may want to investigate some static site generators, and, to be fair
  in comparisons, check out things like wordpress, drupal, etc

Some time last year there were reports of a wordpress vulnerability that
 was being exploited; probably fixed by now.

  Pick the one that looks like it will do what you want and be the least
  amount of effort to maintain going forward (this could be either on the
  server side, or the client side. for example upgrading pkgs on a regular
  basis may not be something you want to do. you may decide you want to be
  able to manage content via the browser. etc.)

If the ISP hosts the software Pete needs only provide the content.

 Rich
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Re: [PLUG] Multi host init system?

2015-07-10 Thread Nathan Williams
i haven't had to actually do this yet, but if i understand the systemd
socket-activation concept correctly, that may be a useful building block
for putting something like this together (service gets started when another
service tries to access it over the network).

thankfully we don't have any super order-dependent services like that (they
just enter a retry loop until their dependencies are available), but i'm
tempted to try it out now :)



On Thu, Jul 9, 2015 at 11:57 PM Martin A. Brown mar...@linux-ip.net wrote:


 Hello there,

  I have an app that is distributed across a dozen servers.
 
  There are several processes involved, some with dependencies on
  processes running on other servers.

  What app would you recommend for starting the whole thing up in an
  orderly manner?

 Is it possible to adjust the pieces of software so that there is no
 required 'orderly' startup?

 I ask because--if the application requires synchronized startup of
 services across multiple machines, then what happens when one of the
 services (or nodes) early in that dependency chain fails during
 operation?

 For example, let's imagine services A through I, each of which must
 be launched before the subsequent can launch:

A - B - C - D - E - F - G - H - I

 Assuming normal, orderly, coordinated startup, great.  Now,
 everything is running.

 Suppose that service C fails.
What happens?
Will the application still run?
Do D through I need to be restarted (or just D)?

 If it is possible to adjust the individual services so that each of
 them can run and retry, fail gracefully, or even fail hard (as fast
 as possible, please) to contend with dependency issues, I would
 recommend that.

 Perhaps you have already addressed that question or are in the
 (unenviable) position of contending with feature-complete software
 that is ready for deployment.

 Since you are in the 10+ node realm, I think I'd also agree with
 using some sort of configuration management (somebody suggested
 Ansible).  With this many nodes, it's an operational truism that one
 of them will kick the bucket during your dog's midnight birthday
 party [0] and you'll want to be able to move the service quickly to
 another node.

 Hurrah for the well-worn configuration management tools.

 This is the modern take on startup script dependencies, just now
 with more network in-between!  Everybody needs more network
 in-between!  Not an easy problem.

 Anyway, good luck with this conundrum!

 -Martin

   [0] Silicon devices sense these moments and cherish destroying our
   equanimity.

 --
 Martin A. Brown
 http://linux-ip.net/
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Re: [PLUG] Changes At whatismyip.com

2013-01-14 Thread Nathan Williams
i alternate periodically between using a cloud-hosted script on my 
linode that dumps the clients IP, and using icanhazip.com (also supports 
ipv6). no registration required, and haven't hit any limits yet.

there's also: http://v4.ipv6-test.com/api/myip.php, which seems to work 
pretty well.

On 01/14/2013 09:12 AM, Rich Shepard wrote:
 Thanks to Bill Barry I use whatismyip.com in a shell script that runs
 every 15 minutes. If Frontier has changed my IP address, then the script
 effects that change at the registrar's DNS servers.

 Today I actually read the message associated with an IP address change and
 learned that whatismyip.com has removed the Microsoft .asp version of their
 tool. Now, an un-registered user gets 5 IP address lookups per _day_. With a
 free account a registered user gets 12 IP address lookups per _hour_. Since
 my cron job runs 4 times per hour that is certainly adequate for my needs.
 The provider also has two higher-level memberships for pay (from $1/month to
 $50/year).

 For others here using (or considering using) whatismyip.com, here's the
 URL to sign up for the free (or paid) services:

  http://www.whatismyip.com/membership-options/

 Rich

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Re: [PLUG] Changes At whatismyip.com

2013-01-14 Thread Nathan Williams
On 01/14/2013 12:52 PM, Michael Dexter wrote:
 On 1/14/13 10:06 AM, Nathan Williams wrote:
 i alternate periodically between using a cloud-hosted script on my
 linode that dumps the clients IP...
 Nice. A script you can share?

sure, though it's not very clever or anything

?php

print $_SERVER['REMOTE_ADDR'];

?


 icanhazip.com
 http://v4.ipv6-test.com/api/myip.php
 Nice and clean!

yes, there's several nice options that don't require you to parse out 
the junk, though some eventually started injecting html, which is why i 
have my fallback option :)


 (Unless of course you want a weigh loss ad with your public IP information.)

 Michael

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Re: [PLUG] Changes At whatismyip.com

2013-01-14 Thread Nathan Williams
On 01/14/2013 01:58 PM, Rich Shepard wrote:
 On Mon, 14 Jan 2013, King Beowulf wrote:

 I've had various DSL and cable providers over the years, and never found
 my dynamic IP to change very often.  With Comcast now and my IP hasn't
 changed in a year!  Checking very 15 minutes seems to be a bit overkill.
 Typically, you will have a IP lease time and then only swap out when the
 modem reboots.  For the small game server I run under my desk, I typically
 have dyndns only check once every 24hrs.
 Ed,

 Ever since Frontier took over Verizon Northwest's land lines and stopped
 supporting static IP addresses (at least for ISPs like Aracnet/SpiritOne), I
 get a new IP address frequently. It's slowed down some now but I was getting
 30-40 changes a day (usually from the evening to the next morning). Now I
 see only 3-4 every day or two. Before I started checking frequently I'd
 often log in early in the morning and find that mail stopped arriving some
 time during the previous evening or night. Then I'd need to find my current
 IP address and manually update the DNS servers. PITA.

 Yeah, I know that DHCP leases are supposed to be longer, but apparently no
 one told Frontier about that.

 Rich

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that's insanity. i can't imagine this makes managing their network any 
easier, i wonder why they'd have such a short lease cycle?

  -- Nathan
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Re: [PLUG] Chrome vs. Chromium: Which is the Web Browser and Which the OS?

2013-01-01 Thread Nathan Williams
On 01/01/2013 09:30 AM, Rich Shepard wrote:
 On Tue, 1 Jan 2013, Rich Shepard wrote:

I find the source for chromium on the SlackBuilds.org site (184M worth)
 but am having issues building it as the build script says the 212M file is
 not complete. Sigh.
 Oops! The file when downloaded is 192M, not 212M.

 Rich

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there's two chromes, and two chromiums: one a browser, one an OS. The 
OS is generally referred to as Chrome/Chromium OS to help with the 
confusion.

chromium is the open-source core of the browser/OS, minus some 
proprietary stuff like the built-in flash plugin.

chrome download: https://www.google.com/intl/en/chrome/browser/
chromium browser download: http://www.chromium.org/Home
chromium OS download: http://www.chromium.org/chromium-os

as for why chromium won't build... no idea... did you check the md5sum 
to verify the download?

regards,

nathan w
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Re: [PLUG] Chrome vs. Chromium: Which is the Web Browser and Which the OS?

2013-01-01 Thread Nathan Williams
On 01/01/2013 09:45 AM, Rich Shepard wrote:
 On Tue, 1 Jan 2013, Nathan Williams wrote:

 chromium is the open-source core of the browser/OS, minus some
 proprietary stuff like the built-in flash plugin.
 Nathan,

 So installing the chromium browser won't enable viewing flash videos any
 more than they can be viewed with firefox or opera?

 chrome download: https://www.google.com/intl/en/chrome/browser/
 Browser or OS? :-)

indeed. Google seems to have a habit of picking project names that are 
not very indicative of their purpose.


 as for why chromium won't build... no idea... did you check the md5sum to
 verify the download?
 Downloaded the source again and now it's building.

 Or, can the 11.2 version of flashplayer be found and installed in any
 browser?

chromium should pick up the flashplayer like firefox does if you've got 
it installed in any of the usual locations (e.g. 
/usr/lib/adobe-flashplugin/libflashplayer.so)

 Thanks,

 Rich

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[PLUG] reco: pdx colo facility

2012-12-01 Thread Nathan Williams
hi plug folks,

while this isn't directly related to linux/unix, i'm looking for 
reco's/info on a solid *locally owned* and managed colo facility to rack 
a 1U server for the Ubuntu Oregon group.

My goals are:

Price: ~$100/mo or less
Access: 7a-7p 7days/wk as a minimum, my work hours would make it hard to 
get down there during normal business hours
Location: within an hour's drive of hillsboro, i don't wanna have to go 
to the dalles, vancouver, or salem
Remote hands: in the event that things go sideways, is it possible to 
get a kvm hooked up or a manual power cycle without incurring exorbitant 
expenses?
Reliability: solid network and reliable power, failover plans for both.

thanks in advance!

nathan williams
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Re: [PLUG] bug in PLUG mailing list software?

2012-09-10 Thread Nathan Williams
On Mon, 2012-09-10 at 09:25 -0500, Richard Owlett wrote:
 I've had some _occasional_ problems replying to *THIS* list.
 If I send To:
   plug@lists.pdxlinux.org
 I do not believe I've ever seen a problem.
 
 However, if I hit Reply and the To: comes up as
 General Linux/UNIX discussion and help; civil and on-topic 
 plug@lists.pdxlinux.org
 I generally get a error message.
 
 Some experimentation suggests the semicolon is the culprit.
 
 I use
 User agent: Mozilla/5.0 (Windows NT 5.1; rv:15.0) 
 Gecko/20120826 Firefox/15.0 SeaMonkey/2.12
 Build identifier: 20120826214753
 
 My OS is WinXP Pro SP3 -- yes I'm in process of moving to a 
 real OS ;)
 
 Comments?
 
 
 

yeah, i've encountered the same thing, and found the same solution.

cheers,

nathan w


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Re: [PLUG] Anyone using Webmin?

2012-08-29 Thread Nathan Williams
I don't, but my coworker uses it extensively. I'll see what he thinks about 
doing a talk.

Michael Dexter dex...@ambidexter.com wrote:


I couldn't help but notice that Webmin 1. is still around and 2. now has 
VM and cloud management features.

Is anyone using it?

Might anyone want to present on it?

Michael
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Re: [PLUG] local linux certification

2012-07-31 Thread Nathan Williams
On 07/31/2012 06:09 PM, MJang wrote:
 On Mon, 2012-07-30 at 21:35 -0700, Nathan Williams wrote:
 On 07/30/2012 09:16 PM, eduncli...@gmail.com wrote:
 all my searches seem to indicate
 that I'll need to travel to Seattle to actually take the test. Is this
 accurate?

 I believe that's accurate. I know that this was the case when I looked into 
 it last summer.
 darn. it seems a mite surprising that this would be the case, but I
 suppose it's not the end of the world.
 Alternately accepting general cert/study recommendations if there's
 anything I should know ahead of time?

 I don't. I fantasize about finding work abroad and decided to focus on LPI 
 certificates. But, I am curious about what kind of lab you set up for you 
 RHCSA study.
 my lab is a fluctuating number of CentOS KVM guests based on how
 functional any of them are at a given time. The minimum number of rhel
 images you can get away with is about 3. I've just been working through
 chapters 1-9 of Michael Jang's RHCSA/RHCE Red Hat Linux Certification
 Study Guide.
 Dear Nathan, Eamonn,

 Assuming the indulgence of the group, you're welcome to ask questions
 here (or privately by email) if you run into book related issues.
 (Nathan, your lab sounds fine.)

 Thanks,
 Mike

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Hi Mike!

I didn't know you were on the list! Thanks for writing such a great 
book. If I run into any problems, I'll be sure to let you know :).

Cheers,

Nathan W
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[PLUG] local linux certification

2012-07-30 Thread Nathan Williams
Hey folks,

I've been studying for the RHCSA, but all my searches seem to indicate 
that I'll need to travel to Seattle to actually take the test. Is this 
accurate? If not, could you point out how my google-fu is failing? 
Alternately accepting general cert/study recommendations if there's 
anything I should know ahead of time?

TIA,

Nathan W

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Re: [PLUG] local linux certification

2012-07-30 Thread Nathan Williams
On 07/30/2012 09:16 PM, eduncli...@gmail.com wrote:
 all my searches seem to indicate
 that I'll need to travel to Seattle to actually take the test. Is this
 accurate?

 I believe that's accurate. I know that this was the case when I looked into 
 it last summer.

darn. it seems a mite surprising that this would be the case, but I 
suppose it's not the end of the world.

 Alternately accepting general cert/study recommendations if there's
 anything I should know ahead of time?

 I don't. I fantasize about finding work abroad and decided to focus on LPI 
 certificates. But, I am curious about what kind of lab you set up for you 
 RHCSA study.
my lab is a fluctuating number of CentOS KVM guests based on how 
functional any of them are at a given time. The minimum number of rhel 
images you can get away with is about 3. I've just been working through 
chapters 1-9 of Michael Jang's RHCSA/RHCE Red Hat Linux Certification 
Study Guide.

 -Eamonn
 Sent via BlackBerry from T-Mobile

 -Original Message-
 From: Nathan Williams nat...@nathanewilliams.com
 Sender: plug-boun...@lists.pdxlinux.org
 Date: Mon, 30 Jul 2012 21:11:52
 To: plug@lists.pdxlinux.org
 Reply-To: General Linux/UNIX discussion and help;
   civil and on-topic plug@lists.pdxlinux.org
 Subject: [PLUG] local linux certification

 Hey folks,

 I've been studying for the RHCSA, but all my searches seem to indicate
 that I'll need to travel to Seattle to actually take the test. Is this
 accurate? If not, could you point out how my google-fu is failing?
 Alternately accepting general cert/study recommendations if there's
 anything I should know ahead of time?

 TIA,

 Nathan W

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Re: [PLUG] REALITY CHECK - was [Re: Debian netinst.iso vs Wifi hot spot]

2012-07-24 Thread Nathan Williams
On 07/24/2012 06:17 PM, Richard Owlett wrote:
 chris (fool) mccraw wrote:
 On Tue, Jul 24, 2012 at 3:33 PM, Paul Heinleinheinl...@madboa.com  wrote:

 That's my best guess as to what's happening.
 seconded.

 You might have luck in a smaller, self-managed venue like a neighborhood
 coffee shop, but it's going to be a hit-or-miss proposition.
 Or, run a live distro and accept the clickthru and then reboot into
 the installer.

 But IMNSHO it's kind of a dick move to install at a coffee shop
 (unless it's one that you own), since you will eat up all of the
 available bandwidth at a business that is trying to serve multiple
 people.
 Sorry folks ;/

 My questions WAS:
 Anyone successfully installed Debian using netinst.iso when
 *ONLY* available internet connection was via a public Wifi
 hot spot?

 Please don't GUESS at possible problems when I asked if 
 anyone has *EVER* succeeded?

 BTW
 1. Location is a public library
 2. I've routinely connected using Debian, Ubuntu and EVEN 
 Windows(tm) - never having been asked to agree to any terms. LOL

 Being in a distant suburb (~2000 miles SE) , AKA Show Me 
 State ;)
 And the answer is ??? ??


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I've never succeeded at your specified task, and upon reading it had a
response like this:
http://www.youtube.com/watch?feature=player_detailpagev=0Xl50qKVkqE#t=3961s

but good luck!

- nathan w
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Re: [PLUG] REALITY CHECK - was [Re: Debian netinst.iso vs Wifi hot spot]

2012-07-24 Thread Nathan Williams
On 07/24/2012 06:54 PM, Richard Owlett wrote:
 Nathan Williams wrote:
 On 07/24/2012 06:17 PM, Richard Owlett wrote:
 chris (fool) mccraw wrote:
 On Tue, Jul 24, 2012 at 3:33 PM, Paul Heinleinheinl...@madboa.com   
 wrote:

 That's my best guess as to what's happening.
 seconded.

 You might have luck in a smaller, self-managed venue like a neighborhood
 coffee shop, but it's going to be a hit-or-miss proposition.
 Or, run a live distro and accept the clickthru and then reboot into
 the installer.

 But IMNSHO it's kind of a dick move to install at a coffee shop
 (unless it's one that you own), since you will eat up all of the
 available bandwidth at a business that is trying to serve multiple
 people.
 Sorry folks ;/

 My questions WAS:
 Anyone successfully installed Debian using netinst.iso when
 *ONLY* available internet connection was via a public Wifi
 hot spot?

 Please don't GUESS at possible problems when I asked if
 anyone has *EVER* succeeded?

 BTW
 1. Location is a public library
 2. I've routinely connected using Debian, Ubuntu and EVEN
 Windows(tm) - never having been asked to agree to any terms. LOL

 Being in a distant suburb (~2000 miles SE) , AKA Show Me
 State ;)
 And the answer is ??? ??


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 I've never succeeded at your specified task, and upon reading it had a
 response like this:
 http://www.youtube.com/watch?feature=player_detailpagev=0Xl50qKVkqE#t=3961s

 but good luck!

 - nathan w

 Chuckle, but I've only dial-up available at home -- that's 
 why I have to make trips to library for any high speed access ;)
 Could you summarize? Or are you going force me to wait for 
 next opportunity visit a library? ROFL


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ouch. i begin to understand your conundrum. if you've seen The Point
(1971), with Harry Nilsson, it's The Count, yelling madness! sheer
maaadne!
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Re: [PLUG] Postfix: fixing a 'host not found' rejection

2012-07-06 Thread Nathan Williams
I suspect this is due to a reject_unknown_sender_domain instruction in the 
smtpd_recipient_restrictions clause. As long as your whitelist check comes 
first, you can skip the requirement.

Assuming it fits the facts, maybe try something like:

check_sender_access hash:/etc/postfix/sender_access



Rich Shepard rshep...@appl-ecosys.com wrote:

   There is a domain being rejected by postfix because 'host not found.' I
put that domain name in /etc/postfix/rhsbl_sender_exceptions with an 'OK'.
This has resolved the issue for many other domains, but not this one. A
typical log entry is:

Jul  6 04:42:19 salmo postfix/smtpd[20260]: connect from
mail.hornady.com[69.20.192.122]
Jul  6 04:42:21 salmo postfix/smtpd[20260]: NOQUEUE: reject: RCPT from
mail.hornady.com[69.20.192.122]: 450 4.7.1 barracuda.hornady.com: Helo
command rejected: Host not found; from= to=rshep...@twodogs.us
proto=ESMTP helo=barracuda.hornady.com
Jul  6 04:42:21 salmo postfix/smtpd[20260]: disconnect from
mail.hornady.com[69.20.192.122]

   Is this a mal-formed message at the sender's end (notice noting in the
from= in the 5th line)?

   Please suggest how I can tweak postfix to receive messages from this
domain.

Thanks,

Rich

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[PLUG] Debian / Ubuntu Bug Squashing Party

2012-05-24 Thread Nathan Williams
Greetings!

Join us at PSU for another Debian / Ubuntu Bug Squashing Party, June 16, 
2012 from 10am - 8pm.

We'll be focusing on multi-arch, bitesize, and more.

Building is at 4th and College. Room 86-01 is in the basement, take the 
elevator or stairs down to basement and follow the signs.

Event Links, pick your poison:
-
http://loco.ubuntu.com/events/ubuntu-us-or/1789/detail/
http://calagator.org/events/1250462401

Regards,

Nathan Williams

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Re: [PLUG] photo stitching SW?

2010-11-14 Thread Nathan Williams
I can vouch for hugin, have used multiple times to great success.

On Nov 14, 2010 15:57, Denis Heidtmann lt;denis.heidtm...@gmail.comgt; wrote: 

What photo stitching software do people recommend? Pandora plug-in for GIMP,

Hugin, enblend, and photoxx are listed in Synaptic.  Anybody have experience

with any of these?  I have a few pix I took as panoramas, and I would like

to put them together.  I have done this before using sw that came with my

camera (Canon), but that only works in Windows, and I would like to avoid

that if I can.



Thanks,

-Denis

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Re: [PLUG] slightly OT, Internet media and OpenDNS...

2010-10-28 Thread Nathan Williams
Regarding item 5, this sounds a lot like moblock, which has all of the features 
you described, with lots of ways to define whitelist/blacklist traffic and use 
custom lists for the same.



-- Sent from my Palm Pre
On Oct 27, 2010 23:58, Michael C. Robinson lt;plu...@robinson-west.comgt; 
wrote: 

1) I want to go from clear text passwords in flat text files accessed 

   by a perl based cgi script to possibly salted passwords in a

   database.



2) I want a daemon operating on the firewall machines that can detect  

   inactivity and close out that host(s).



3) I want redirecting when a user tries to go out and the firewall is

   closed, but I don't want to force everyone through a proxy.



4) I want my web page to have a feature that allows web based adding

   and editing of computers, users, passwords, and access profiles.



5) I want a black list and/or a white list of Internet sites, but I 

   don't want to implement this via a proxy.  OpenDNS would be the

   preferred way to implement this.



I don't know how to do 1-5.  Concerning 2, I wonder if sleeping

computers will answer ping probes?  With regard to a daemon, I'm

not certain how to write one let alone how to detect inactivity

across a firewall for a specific period of time.  Item 3 is done on

PSU's wireless network, but maybe they use a proxy.  Item 4 is 

something of an upgrade to my existing system.  Item 5 seems to

be a necessity to get around OpenDNS's shortcomings.



If I have to blacklist locally and I can do this without using a proxy,

maybe I can integrate editing of the black lists/white lists 

into my existing web page.  I can use php or perl I suppose.



Can I throw packets to user space, find out where they are trying to

go, check if a name on a black list or white list resolves to

the destination IP, and then dynamically decide what to do with the

packet at the packet layer?  What is the best way to do this?  Should I

implement a DNS based ip blacklist where external ip addresses are

mapped to 127.0.0.x addresses?  Maybe I should mimic postfix's hash

files and read these files using perl.  I'm thinking something like:

some.bad.site   DROP # Blacklisted

some.good.site  ACCEPT   # Whitelisted

.

.

.

I guess I need a simple caching name server that updates every time the

retrieved information can change to go the hash file route.  The cache

should be populated with the listed names.



Item 5 is what I need to implement ASAP.



I guess one option is to have an iptables chain called whitelist and

another one called blacklist.  Trouble is, how do I keep the ip

addresses in these chains correct?  One look up is enough, I don't 

want to check every single packet.



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Re: [PLUG] flash problems x86_64...

2010-10-21 Thread Nathan Williams
Adobe has a new 64bit beta out called adobe square, and you just copy the .so 
to ~/.mozilla/plugins . It's worked really well for me for a while now.



-- Sent from my Palm Pre
On Oct 21, 2010 7:13, Michael C. Robinson lt;plu...@robinson-west.comgt; 
wrote: 

Apparently, there is no standard way to watch flash content on an x86_64

Linux distribution.  Adobe evidently has pulled their 64 bit flash

player, not the Windows version of course.  Anyone know of a good

workaround?  For how long is this likely to remain a problem?



This is why I stuck with my old Pentium 4 for so long.



I'm running Fedora 13 x86_64 where the 32 bit flash player doesn't seem

to work.



I wish an open source flash replacement would come out that works with

the boneheaded web sites that require adobe flash player.



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Re: [PLUG] Turning AVI into DVDs

2010-09-05 Thread Nathan Williams
Deevedee is great software forr burning dvd's on linux. I'm not positive on the 
spelling



-- Sent from my Palm Pre
On Sep 5, 2010 11:38, Bill Barry lt;b...@billbarry.orggt; wrote: 

On Sun, Sep 5, 2010 at 11:34 AM, Bill Barry lt;b...@billbarry.orggt; wrote:
gt; Handbrake is a nice tool for this.
gt;
gt; Bill Barry

Correction:
This turns DVD's into avi's. I don't know much about the reverse process.

Bill

gt;
gt; On Sun, Sep 5, 2010 at 10:59 AM, Scott Howard lt;show...@k-hlaw.comgt; 
wrote:
gt;gt; In the dark world we use dvd flick to turn an avi into a dvd that can 
be
gt;gt; played in a standard dvd player. nbsp;Is there a linux equivalent or 
how do
gt;gt; you do this?
gt;gt;
gt;gt; Scott Howard
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Re: [PLUG] For httpd Gurus

2010-09-05 Thread Nathan Williams
If you are looking at the source of the rendered page, you should not see any 
php code. Try with lt;?php phpinfo(); ?gt; instead.nbsp;



-- Sent from my Palm Pre
On Sep 5, 2010 14:29, Rich Shepard lt;rshep...@appl-ecosys.comgt; wrote: 

On Sun, 5 Sep 2010, Michael Rasmussen wrote:



gt; Right click and choose view source to find out.



   That shows me the source, all right:



lt;? phpinfo(); ?gt;



   Is there a syntax error in there? Does it matter if it's on one line or

three lines?



Thanks, Michael,



Rich

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Re: [PLUG] For httpd Gurus

2010-09-05 Thread Nathan Williams
Argh. Stupid phone is jacking up symbols... Point is to try specifying php 
after the question mark on the opening tag...nbsp;



-- Sent from my Palm Pre
On Sep 5, 2010 14:54, Nathan Williams lt;nat...@nathanewilliams.comgt; wrote: 

If you are looking at the source of the rendered page, you should not see any 
php code. Try with amp;lt;?php phpinfo(); ?amp;gt; instead.amp;nbsp;







-- Sent from my Palm Pre

On Sep 5, 2010 14:29, Rich Shepard amp;lt;rshep...@appl-ecosys.comamp;gt; 
wrote: 



On Sun, 5 Sep 2010, Michael Rasmussen wrote:







amp;gt; Right click and choose view source to find out.







   That shows me the source, all right:







amp;lt;? phpinfo(); ?amp;gt;







   Is there a syntax error in there? Does it matter if it's on one line or



three lines?







Thanks, Michael,







Rich



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Re: [PLUG] Financial security on the net

2010-08-18 Thread Nathan Williams
This is true, and something to plan for. It's also why lots of merchants are 
switching to zero dollar auth checks, though this also comes w/ headaches, as 
not all card issuers support it, and may decline zero dollar auths even if 
funds are available.



-- Sent from my Palm Pre
On Aug 18, 2010 18:30, Bruce lt;kd7...@gmail.comgt; wrote: 

On 08/18/2010 09:59 AM, nat...@nathanewilliams.com wrote:

gt; On Wed, 18 Aug 2010 09:45:27 -0700, Pete 
Lancashirelt;xyzzy...@gmail.comgt;

gt; wrote:

gt;

gt;gt; One thing I do is I keep only a small amount in the account I do any

gt;gt; Debit Card

gt;gt; transactions with. Most of the time it only has $300-400 in it. It is

gt;gt; a hassle but

gt;gt; I look at it as a sacrificial line of defense.

gt;gt;

gt;gt; -pete

gt;gt;

gt;gt;

gt;gt;  

gt; another thing i've started seeing a lot of people doing, which seems

gt; fairly intelligent, is to use pre-paid cards for online transactions. the

gt; only downside to this is that lots of merchants require address validation

gt; be performed to reduce their exposure to chargebacks. fortunately the

gt; pre-paid cards have a number where you can call the vendor (visa/mstr,

gt; whatev) and add an address in their system so the card can pass AVS.

gt;

gt; nathan w

gt; non servium

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gt;



If the prepaid only has enough for the purchase available, when the 

online company tests the card for $1 to make sure it is a valid card, 

then the transaction won't go through for lack of $1.  I found this out 

when I ordered a ham radio online.



Bruce



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Re: [PLUG] Problem Wireless USB Device in OpenSuSe. Works in Ubuntu

2010-06-28 Thread Nathan Williams
I've had tons of issues w/ knetwork mgr and wireless nics. Tried it out in 
opensuse gnome? I just went through the same slog in kde opensuse and kde 
fedora w/ no luck, but gnome's networkmgr worked like a charm.



-- Sent from my Palm Pre
On Jun 28, 2010 8:29 AM, Keith lt;ac7xc...@comcast.netgt; wrote: 

 It appears that everything is setup, but I have no network access. ping

or traceroute do not work.



wlan0 IEEE 802.11bg  ESSID:dlink  

  Mode:Managed  

  Frequency:2.432 GHz  

  Access Point: 00:18:E7:CB:B2:20   

  Bit Rate=36 Mb/s   Tx-Power=20 dBm   

  Retry  long limit:7   RTS thr:off   Fragment thr:off

  Encryption key: foo

  Power Management:off

  Link Quality=70/70  Signal level=-38 dBm  

  Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

  Tx excessive retries:0  Invalid misc:0   Missed beacon:0



linux-nxy3:~ # ifup wlan0

wlan0 name: RTL8187B_WLAN_Adapter

wlan0 warning: WPA configured but may be unsupported

wlan0 warning: by this device

wlan0 warning: wpa_supplicant already running on interface

DHCP4 client is already running on wlan0

IP address: 192.168.0.103/24





This is from the router. It shows that the USB WiFI card is connected,

but no network activity with the wireless USB card in OpenSuSE.



Wireless LAN

Wireless Radio : Enabled

802.11 Mode : Mixed 802.11n, 802.11g and 802.11b

Channel Width : 20MHz

Channel : 5

Secondary Channel :  

WISH : Active

Wi-Fi Protected Setup : Enabled/Configured

Guest Wi-Fi Protected Setup : Enabled/Not Configured

SSID List

Network Name (SSID) Guest   MAC Address Security Mode

dlink   No  00:18:e7:cb:b2:20   WPA/WPA2 - Personal 





 If I plug the USB WiFI into a Ubuntu Laptop it works with no problems.

There must be something else I have to do? I have gone into YaST network

setup and added DHCP support.





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