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Hello,
Looks like we are waiting for the new switch before doing any network
redesign. Still we can probably prepare the servers right now.
We can start changing ip address of our servers for the future VLANs:
1/ public ips : for squids, (
download|noc).wikimedia.org and future
bastion hosts.
2/ squid <-> apaches
3/ apaches <-> databases
4/ management
Actually we got our servers under 10/8. 192.168/16 is used for network
stuff (switch, bgp?). We can use 172.16/20 block for monitoring and
management purpose, with the new switch we can assign it high priority
in case the site got a trouble.
Larousse can probably be the monitoring host as it already hosts cricket
servmon and nagios. Cricket currently only graph squids and it can be
interesting to get more graphs for memcached usage, apache usage, disk
space ... Nagios actually require the nrpe daemon running on every host
and rely on custom scripts being run on host to feed data.
To get something a bit easier to manager, I think we should install snmp
daemon on all servers and make them send snmp traps to Larousse, then we
can have snmptrapd log the traps somewhere, send notifications to nagios
and feed the irc bots.
- --
Ashar Voultoiz - WP++++
http://en.wikipedia.org/wiki/User:Hashar
http://www.livejournal.com/community/wikitech/
Servers in trouble ? noc (at) wikimedia (dot) org
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