[CentOS] Can anyone talk infrastructure with me?

John Doe jdmls at yahoo.com
Thu Jan 26 10:54:38 UTC 2012

From: Jason T. Slack-Moehrle <slackmoehrle at gmail.com>

> Here is where I draw some confusion. Where do items such as Varnish Cache, 
> HAProxy go in relationship to firewall, DMZ, etc? 

Here, we use 2 keepalived/lvs servers in direct routing for HA, then 
n cache servers with nginx (for consistent hashing + some 
basic http/php) and, behind, varnish (or squid, not decided yet... varnish 
memory/disk handling seems "cleaner" and a little bit faster, but on the 
other hand squid cache will survive a restart (maybe varnish new 
version 3.x implemented it, not sure)).


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