I am trying to prevent certain requests from being logged to the access log. Have the following configuration snippet: acl NoLogSites url_regex -i "/etc/squid/nolog.txt" log_access deny NoLogSites Within /etc/squid/nolog.txt: .jira.com .concursolutions.com .typesafe.com .maven.org .surveymonkey.com .salesforce.com .webex.com However, when I have this it ends up logging nothing. I even tried escaping the . by using \. but same thing. With this directive in nothing gets logged to access.log. Remove it and everything gets logged. Running on CentOS 6.4 with squid 3.1.10