Maintenance and Support
One of the chief arguments against production use of any open source solution
is limited support. In truth, there are many companies willing to provide
Squid support for a price: You'll find several enumerated in the Squid
FAQ. You can also find a wealth of free troubleshooting info in the Squid
Mail Archive. Squid source is maintained by NLANR, funded by NSF.
Most ISPs are familiar with the tradeoffs between open source and commercial
support, so we won't belabor this point.
Final Words
We spent less time installing Squid than we'd expected, but far more time
tuning Squid than we'd planned. Had we started with a more robust hardware
platform, we would not have run into as many problemsbut running
into these problems gave us a better feel for the effort needed to actually
deploy this open source cache. Many great minds have contributed to Squid
development; the version we tested had clearly benefited from improvements
made over time. If you want to learn about caching, Squid is an excellent
way to get started. But unless you have small network and are willing
to commit hardware, time, and effort, you'll get a more leverage by purchasing
a commercial product for large-scale production network caching.
Squid
2.3 Free Open Source National Laboratory for Applied Network Research
(NLANR) http://squid.nlanr.net