Squids
From Wikitech
(Difference between revisions)
(→Logs: also zwinger) |
(fr squids details) |
||
| Line 30: | Line 30: | ||
==Logs== | ==Logs== | ||
Currently on [[yongle]] in /var/backup/archiv, and/or on [[zwinger]] in /home/wikipedia/logs/archiv/ | Currently on [[yongle]] in /var/backup/archiv, and/or on [[zwinger]] in /home/wikipedia/logs/archiv/ | ||
| + | |||
| + | ==French squids== | ||
| + | * 3 600MHz Celeron 1U machines with 20GB HDD and 128MB RAM (to be upgraded to 1GB?) - HP Web Hosting Server Appliance sa1100 - specs: [http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentGroup=NT_CT_Specifications&locale=en_US&docIndexId=178991&taskId=101&prodTypeId=15351&prodSeriesId=62929] | ||
| + | * 2 serial ports, 2 NICs, no graphics card | ||
| + | * Debian | ||
| + | * names are ''chloe'', ''bleuenn'', and ''ennael'' | ||
| + | * to be located in a colo on Paris - provided free by http://www.lost-oasis.fr/ | ||
| + | * serial cables running from ttyS1 on one machine to ttyS0 on another; getty running on ttyS0 on each machine, to allow communication using minicom | ||
Revision as of 18:43, 27 July 2004
Contents |
DNS and squid
- to add new IPs for squid:
- add the IPs in /var/named/master/wikipedia.zone in the obvious places (on zwinger)
- make sure to update the serial number in the zone file!
- run rndc reload to make it update - no need to restart named
- for 3 squids - use 6 IPs, to allow even load-balancing if 1 or 2 squids go down
- 2 scripts in /home/wikipedia/bin:
- takeip
-
dropip(vapourware)
- some useful commands:
- dig ANY en.wikipedia.org @zwinger.wikipedia.org
- dig +short ANY en.wikipedia.org
Virtual IPs
browne: 207.142.131.235, 207.142.131.247 coronelli: 207.142.131.236, 207.142.131.248 maurus: 207.142.131.245, 207.142.131.246
- According to damyta, should use 255.255.255.255 for netmask for the IPs of virtual eth interfaces - otherwise there can be routing confusion.
- You must ping through the switch via a virtual interface which you have just brought up (using ping -I), to update the switch's idea of who has what IP. When pinging with -I207.142.131.248 or similar, use suda as the ping target; pinging the broadcast address does not always work.
- Can use script takeip in /h/w/bin to take over an IP if a squid goes down.
- To take down a virtual eth interface, /sbin/ifconfig eth0:n down
- TODO: set up heartbeat for automatic IP takeover.
Logs
Currently on yongle in /var/backup/archiv, and/or on zwinger in /home/wikipedia/logs/archiv/
French squids
- 3 600MHz Celeron 1U machines with 20GB HDD and 128MB RAM (to be upgraded to 1GB?) - HP Web Hosting Server Appliance sa1100 - specs: [1]
- 2 serial ports, 2 NICs, no graphics card
- Debian
- names are chloe, bleuenn, and ennael
- to be located in a colo on Paris - provided free by http://www.lost-oasis.fr/
- serial cables running from ttyS1 on one machine to ttyS0 on another; getty running on ttyS0 on each machine, to allow communication using minicom
