nagios: 2009/10/10 02:13 OK manager Current Load OK - load average: 0.03, 1.56, 1.40
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nagios: 2009/10/10 05:48 CRIT web2 Features Page CRITICAL - Socket timeout after 10 seconds
2009/10/10 05:56 OK web2 Features Page HTTP OK HTTP/1.1 200 OK - 7.557 second response time
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nagios: 2009/10/10 10:50 OK web1 Disk OK : /: 80%used(5723MB/7158MB) : < 80 %
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nagios: 2009/10/10 13:50 WARN web1 Disk WARNING : /: 80%used(5727MB/7158MB) : > 80 %
2009/10/10 13:58 OK web1 Disk OK : /: 80%used(5721MB/7158MB) : < 80 %
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nagios: 2009/10/10 14:58 WARN web1 Disk WARNING : /: 80%used(5727MB/7158MB) : > 80 %
2009/10/10 15:16 OK web1 Disk OK : /: 80%used(5726MB/7158MB) : < 80 %
2009/10/10 15:21 WARN web1 Disk WARNING : /: 80%used(5728MB/7158MB) : > 80 %
2009/10/10 15:29 OK web1 Disk OK : /: 80%used(5725MB/7158MB) : < 80 %
2009/10/10 15:50 WARN web1 Disk WARNING : /: 80%used(5727MB/7158MB) : > 80 %
2009/10/10 16:08 OK web1 Disk OK : /: 80%used(5724MB/7158MB) : < 80 %
2009/10/10 16:36 WARN web1 Disk WARNING : /: 80%used(5727MB/7158MB) : > 80 %
2009/10/10 16:44 OK web1 Disk OK : /: 80%used(5719MB/7158MB) : < 80 %
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marclaporte: hi everyone!
I would like to introduce changi, who will help with server administration
changi|away: hello all
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amette: heya changi :)
-: amette just woke up - right in time... ;)
changi: hi amette
amette: I fear the account validation on sysadm.tw.o doesn't work correctly... marclaporte had problems..
... I tried it now - did you get an e-mail?
otherwise we need to activate your account manually..
changi: no, i don't
You've got a mail :) :)
thx, i now have access
amette: great, cool :)
then I worked after all ( I was just on the phone and didn't do anything about the login... ;) )
changi: pretty cool
amette: ok, I put you now in the sysadm-group, so you should see what I wrote so far
changi: ok will see that later
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amette: ok
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changi|away: amette; pretty cool
just to know, what operating system is running for dev and doc ?
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amette: changi|away: it's Gentoo
changi|away: amette: ok, don't know this OS, (i work on debian) but if you need any help just ask
amette: cool - do you have an SSH-key? So I can give you login to the machines.
then you can look around and become familiar with it
changi|away: yes have one
amette: cool, just paste it here or so
changi|away: ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA25JRqquGB9ZU5i+rnBgP1D/KS4VqlMc6/OcTSDbg0NLJshKVJgZ3eXo8nR8GVs39l0dcpnBX7BFiqrSWv7Fx62fm58FXl7/htVJ1wjBKvgahqyKpjlXvo5gOsBCNe8PYgsqN8Y3y3B1xd+3WdF7e5N3o5t91kKguFdiR8huDSw1qwDoQL4xzFj5wj2GydXZWLYuBxPxLptIOY7kuFL3M2648mFIn7k23SPrkHK5ss2G5O6s1dDMRVnp17JQBWpfQzf+AlKy8a9y/7C2JaQ896TeMLFXavjvcL+f0TnDBvtGPA+CSLcvPtfrJIY+SJ5T9DqRa/j0O7jCjhLp/oahFKQ== changi@sga
amette: ok, you should be able to log in to dev/doc and db0.tw.o now...
... db0.tw.o doesn't have a dns-entry, I think...
... 78.46.199.149 it is
thinking of making it a completely private machine... dunno... let's see next year about that
changi|away: it ask me a password
amette: huh?
changi|away: did you put it in authorized ?
amette: just pasted it in
changi|away: strange, i use this key to connect to info.two
amette: so, yeah
hmmm, tried other hosts? dev/doc?
changi|away: which user should i use ?
amette: ah, right - root
changi|away: it works
amette: great :)
changi|away: don't you think it's a little bit dangerous to put root access direct on the internet :)
amette: yes, I do think so :)
there's a private network, which I planned to use for that...
... I haven't done much after putting the machines up.. I have planned that for the next month, after I found a final place to live in... ;)
changi|away: marc tell me about that
amette: ... so until then I'm totally open for any good suggestions how to do it.. :)
ah, ok, cool
changi|away: you're in berlin ??
amette: yup, just moved here three weeks ago
changi|away: ok
amette: you're in strasbourg?
changi|away: yes
amette: ok, cool, no problem with timezones then... ;)
changi|away: yes it is,
amette: so, just have a look around the machines, hang out here and feel free to ask..
.. I'm always online, but not always there - but ping me and I read back my chatlogs!
changi|away: no problem
just to understand the architecture, it a single machine with xen and 3 or more virtual machine ?
amette: it is a single machine running Xen, with 3 DomUs
there is one more DomU, which is the management machine - it compiles upgrades, does NIS and NFS
and it runs the nagios in the topic
changi|away: yes talking about that, the main page of the site is very cool (It Work's)
on which server did nagios run ?
amette: hehehe :P
man.tikiwiki.org
wait, I put your key there, too...
changi|away: a lot of server :)
amette: ah, nope, right, I don't have login there...
hehe, yeah, it was planned to make this scalable - so that you rent another server and can duplicate a webserver there and manage it from the same management-server..
... eventually it gets complex... ;)
changi|away: so who manage the nagios srv ?
amette: ... but I think it's still pretty simple overall - it really just does the necessary (when taking the scalability into account).
currently me - and Avonsys has another one, where we don't have access...
... monitoring of the other tiki-sites should be in this nagios, too...
.. we need some way to coordinate our efforts though..
changi|away: It's a little old version
:)
amette: ehm, yeah - I got login there... just no authorized_keys yet - try now.. ;)
yeah, I didn't want to go to 3 immediately - it was just fresh, when I set that nagios up
but so far there are also no interesting features in 3, that would make the upgrade necessary
changi|away: I use the nagios3 for 9 month, and it's pretty cool :)
group management and look and feel
amette: nice
changi|away: man.two has got no DNS
amette: ah, ok, that can be... man0.tw.o or 78.46.199.144 or manager.tw.o
I only access it from the hypervisor
changi|away: nice
gentoo has the same folder structure than debian
amette: yeah, even a bit stricter to the FHS, why I like it more
changi|away: Will be easy to accomodate :)
amette: think so :)
I use git in the / directory to track configuration changes...
... there's currently lots uncommitted, when you look at git-status - was a stressy time.. ;)
changi|away: using git to track modification. Tricky system :)
amette: yeah, I meanwhile think that hg would have been the better choice...
... still gives you all the power of distributing configurations to machines, etc but easier to handle...
changi|away: have you heard about puppet ?
amette: no, sounds unfamiliar
changi|away: http://reductivelabs.com/products/puppet
pretty cool system :)
I use it to make DRP on my debian server
amette: Disaster Recovery?
changi|away: Yes sir
amette: ok :)
changi|away: but we will see that later
amette: sounds like a pretty mighty system - gotta have a look at it :)
yep, right :)
changi|away: i would like to draw a system architecture of your installation
amette: there's also a very nice and lightweight system working on top of rsync, which google uses... don't recall the name..
yeah, sure - I'd love that! :)
changi|away: I'll start and send it to you to make correction
amette: I have a very simple drawing in the slides, where I presented this setup...
changi|away: is that ok for you
amette: yes, sure
which software do you use for it?
changi|away: the software you want
amette: heh, ok - as long as it's open source, I'm happy, I guess... ;)
changi|away: kiwio, oodraw,
gimp
amette: I used oodraw out of necessity, to make this quickly: http://conf.phpquebec.com/slides/2009/The-virtualized-server-infrastructure-of-the-TikiWiki-community-phpquebec_2009.pdf
I think some vector oriented would be good?! dia or so?
changi|away: ok for DIA
amette: ok, cool
changi|away: just to know, is there a possibility to have one of this server on debian or ubuntu OS ?
amette: yeah, that would be possible
changi|away: ok
good
amette: been thinking of moving over to Debian afterwards... dunno, if others like to maintain Gentoo systems... but for now I like Gentoo because of it's flexibility, I can play very freely with what I want to do
changi|away: we could discuss of what you need and I think all your doing with Gentoo is possible with a light debian :)
amette: yeah, I think so, too - but on debian I would have already installed a complete X ;)
not necessary here - I like that :)
changi|away: On my point of view, X is not necessary
Why would you installed a complete X ?
amette: yeah, it shouldn't be - but it's very often a dependency, when you install a server with debian - on Gentoo, I just set the USE-flag to "-X" and it doesn't do that part
changi|away: to help for configuration ?
I manage over 30 linux debian with plainty of software ( apache, mysql, nagios, cacti, .... and more) with no X dependency :)
amette: I used Debian in my former job and it was nice and easy to work with it in a team, but sometimes I missed my Gentoo flexibility ;)
changi|away: lol
amette: oh, with cacti I would have expected the dependency of rrdtool and that rrdtool would pull in Xlibs, which then pull in the complete X-libraries... ;)
I gotta run to the grocery store... bbl
changi|away: you're right libX11 :)
but it's just client side
:)
amette: hehe, well... fair enough.. ;)
changi|away: do you know screen ?
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changi|painting: amette : what is the ip address of db0.two ?
amette: changi|painting: yeah, and I don't know how any sysadmin can work without it :)
ip of db0 --^
78.46.199.149
ok, now for the cooking :)
changi|painting: sysadmin.two access ?
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changi|painting: http://changi67.isa-geek.org/Archi.two.png that's a start
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