I posted this question a few days ago and didn't get a response, maybe because I posted so late in the day. I am trying one more time. Thank you for any response. *********************************************** Last year with the list's help I configured squid as a proxy server on Ubuntu 10.4 using a white list. At the bottom of this email is the site with my final configuration. The Ubuntu Server had an Apache Tomcat web server on it that we were not using at the time. It seems the Squid has disabled it. Is it possible to run both on the same server? I have crawled the archives but do not see any reference to this specific issue. Right now the Squid and the Apache Tomcat are for the LAN only with no external access planned in the near future. When I run the tomcat test http://localhost/ the error message is Firefox can't establish a connection to the server at localhost. Thank you, Margaret http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid3-on-ubuntu-10-4-problem-using-acl-whitelist-in-external-file-td2228995.html "This e-mail message and any attachment(s) are for the sole use of the intended recipient(s) and may contain company proprietary, privileged or confidential information. If you are not the intended recipient(s), please contact the sender by reply e-mail, advise them of the error and destroy this message and its attachments as well as any copies. The review, use or distribution of this message or its content by anyone other than the intended recipient or senior management of the company is strictly prohibited."