Varnish

The default installation of Varnish 3 on Debian-based system (including Ubuntu) will set a default timeout for sending files to users (i.e.

If you're using Varnish cache, you will be familiar with the "service varnish restart" then the "oh, there's a config error and now all my sites are down!". Fear no more: there's a command to check your Varnish syntax before you restart. Just run: $ varnishd -Cf /etc/varnish/default.vcl And it will tell you what's wrong (or at least where the error is). If it prints out all your default.vcl, you're good!