#arpnetworks 2011-03-24,Thu

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WhoWhatWhen
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jlgaddisAnyone happen to know if Garry does some kind of limiting on inbound SSH connections?
(number of connections, that is, not throughput)
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DaCajlgaddis: more than 10 SYN's on port 22 per minute == blocks your IP for a minute [01:20]
jlgaddisThat's what I'm running into then, just wanted to verify. Thanks. [01:20]
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RandalSchwartzsimplest solution to that: don't run ssh on 22
or 2222 :)
I put mine on 443. I get about one probe every three weeks, mostly looking for https weakness
and there are other reasons to run sshd on 443
[06:27]
DaCacorporate firewall piercing? [06:29]
RandalSchwartzindeed.
you should see all the crazy configs in my .ssh/config over the years
many of them involving "socat"
ProxyCommand socat - SOCKS4:localhost:%h:%p,socksport=9050
ProxyCommand socat STDIO PROXY:wwwgate0.EXAMPLE.COM:blue.stonehenge.com:443,proxyport=1080
socat rocks
like netcat, if you just kept going. :)
[06:29]
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ivan-kanisRandalSchwartz: did you write "Learning Perl" ? [06:42]
RandalSchwartzYes. And Programming Perl, and a dozen other ISBNs [06:42]
ivan-kanisRandalSchwartz: i have it on my bookshelf ;) [06:43]
RandalSchwartzMany people do, and I'm happy about that.
Not because I make money from those sales, because I do (about $1 before tax)
but because it means people are learning Perl properly, not like some of those other crappy boooks
[06:43]
ivan-kanishehe i quit perl
i start with shell and the move to python if it gets complex
s/the move/then move
[06:44]
RandalSchwartzwell - if Python works better for you, use it.
but Perl is being used more today than in the dot-com boom
very big resurgence
[06:45]
ivan-kanisthe thing is
i got a google interview where they ask you to solve a problem with a pen and paper
i keep forgetting perl syntax and flunked
[06:45]
RandalSchwartzI'd say Perl is not for people who aren't using Perl at least a few hours a week [06:46]
ivan-kanisi think i could have done it with python because the syntax is easier to remember [06:46]
toddfany language has its rules. if you forget those rules, its not the languages fault. [06:46]
RandalSchwartzfor me, Perl syntax is easier to remember than Python syntax. :) [06:46]
ivan-kaniswell the regexp sucks in python [06:46]
RandalSchwartzif anything, you can say that Perl is a framework for regexp. :) [06:47]
ivan-kanis:D
i enjoy hacking in lisp these days...
[06:47]
jpalmer13:47:10 <RandalSchwartz> I'd say Perl is not for people who aren't using Perl at least a few hours a week <-- probably the #1 reason perl and I don't get along. as a sysadmin, I don't do enough scripting to become proficient at it. so, I still do most of my stuff in /bin/sh
one day though, Python and I will become friends.
[06:48]
RandalSchwartzI wrote the emacs-lisp pretty printer for GNU Emacs.
so every copy of emacs ships with a bit of me. :)
[06:49]
ivan-kanisjpalmer: i did C -> Perl -> Python
jpalmer: and now it's shell because it's ubiqitous
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RandalSchwartzRMS called the code "brilliant" the first time he saw it [06:50]
ivan-kanisRandalSchwartz: cool
RandalSchwartz: i contributed too, my patch made it to the last 23.3
[06:50]
RandalSchwartzpp.el
the first time I fired up GNUS, and saw "loading pp...", I did a little happy dance
[06:52]
ivan-kanisi have used pp
:D
[06:53]
RandalSchwartzGNUS uses pp to write its internal data back to the storage file [06:53]
ivan-kanisi am currently hacking a vt100 emulator in elisp [06:53]
RandalSchwartzyeay - you've used my code. ) [06:53]
ivan-kanisyup works great
http://kanis.fr/nterm.html
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greenskeletonis it possible to start with 8.2-RELEASE on a new signup? [10:35]
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RandalSchwartzI think it's possible. They just don't have it on the pop-ups yet
put it in the comment field
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up_the_irons06:50:54 RandalSchwartz | so every copy of emacs ships with a bit of me. :)
similar story: I wrote the Git module for Capistrano, so every rails project that deploys from a git repo, deploys with a bit of my code ;)
[13:00]
mike-burnsOh, neat! [13:03]
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RandalSchwartzcool!
I'm also listed as a contributor in the GNUS docs for emacs.
although I can't remember now what I actually did. :)
something about changing a yes/no to yes/no/ask
I'm in the GNU Calc manual for suggesting an entire new API for it
and it turns out Org-Mode uses that API.
so indirectly, I helped expand org-mode, even before I had interviewed the guy
(calc-eval ... )
[13:13]
jpalmerjpalmer is only listed as a contributor to apcupsd
back when it was a linux-only solution, I ported it to BSD/OS, and FreeBSD
(sounds more glamorous than it was. It was removing a bunch of hard coded paths, and making the config location something you could set. then writing BSD style start/stop scripts.
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up_the_ironscool [14:19]
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jpalmerI still get a free APC ups every year. they ship me one.. last year, I got a APC smart ups 1000
actually, it's about a month or so from now when I'll likely get my next one if they continue it.
I really don't know WHY they do.. I only contributed 1 patch, like.. 10 years ago or so, and have never been active in apcupsd other than that.
[15:19]
|dreamdude that's so cool
send me your new one?
[15:22]
jpalmerlol [15:22]
up_the_ironsLOL
i'll take it
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Leftyyeah man
free UPSes for everyone
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RandalSchwartzbrown trucks? [15:54]
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pilgrimdI'd have nowhere to park it.
Wow, write code for apcupsd get a free SmartUPS? Schweet.
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RandalSchwartz$client had a raid controller fail the other day, taking out both mirrors
wouldn't be too bad except (a) it was a many-customer machine
and (b) the backups had been failing for six months
doh!
last I heard, they were running SpinRite on the disk just to see if anything was recoverable.
that's a Bad Day
[18:12]
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up_the_ironswow
suckage
[18:18]
RandalSchwartzmakes me wonder how secure my storage here is
do you make sure to put different batch disks into raid pairs?
I hear a lot of problem of raid is people buying 100 disks in the same batch
then pairing them
which of course, doesn't do much to mitigate the risk if they fail simultaneously
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calvino.freenode.net sets mode: +o toddf
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