I just set up squid for the first time. It is on a Ubuntu box hosted on Linode.com. I have zero experience with proxy servers. I used this guide: http://news.softpedia.com/news/Seting-Up-a-HTTP-Proxy-Server-with-Authentication-and-Filtering-52467.shtml (I also looked at a few other guides such as this one: http://ubuntuforums.org/showthread.php?t=320733. However, I wanted to most barebones config to start with and the link I used was the simplest I found.) So now that I have it set up, I'm testing it with FoxyProxy. It is not working well. Many web pages do not load completely. Some load very slowly. A few load fast (but even then, some images are often missing). Many times I have to try an address several times before a page will even start to load. I am using iptables. When I turn the firewall off, I have slightly less problems, but nothing significantly changes. I don't want to leave the firewall off, so I took a few ideas from here: http://www.cyberciti.biz/tips/linux-setup-transparent-proxy-squid-howto.html But the changes I put in actually made the performance a little worse than before. And like I said, even with the firewall off, the problems I described remain. What should I look at next to begin to understand my problem? Thanks. BTW, is there a recent preconfigured squid virtual appliance that I could host on Amazon EC2 (or similar) that would be suitable for my own personal proxy server? I found some links, but the only image seems to be from 2006. Request: Proxy Firewall appliance (2009) http://www.turnkeylinux.org/forum/general/20091109/request-proxy-firewall-appliance wiki: http://eu.squid-cache.org/Features/SquidAppliance http://wiki.squid-cache.org/WishList Quick mailing list discussion (2006) http://www.squid-cache.org/mail-archive/squid-users/200803/0334.html Proxy Standalone Appliance? (2008) http://forums.whirlpool.net.au/forum-replies-archive.cfm/917508.html