Varnish is the key software that speeds up your web site.
It is Open Source, built on industry standards and requires very few resources.
Varnish is distributed in the EPEL (Extra Packages for Enterprise Linux) package repositories. However, while EPEL allows new versions to be distributed, it does not allow for backwards-incompatible changes.
Therefore, new major versions will not hit EPEL and it is therefore not necessarily up to date.
If you require a newer major version than what is available in EPEL, you should use the repository provided by varnish-cache.org. To use the varnish-cache.org repository, Continue reading “pressflow varnish installation and configuration” »