Squid Web Proxy and Cache Server

Tutorials, howtos, and tips about Squid web proxy and cache software under *nix. It includes a wide variety of uses, from speeding up a web server by caching repeated requests; to caching web, DNS and other computer network lookups for a group of people sharing network resources; to aiding security by filtering traffic ( rss feed )

setroubleshoot: SELinux is preventing the squid (squid_t) from binding to port 5000 Error and Solution

by on July 15, 2010 · 0 comments

I’ve setup Squid Proxy server as described here, but I’m getting errors which read as follows:

Jul 14 15:09:02 server1 squid[5315]: Squid Parent: child process 5317 started
Jul 14 15:09:02 server1 squid[5317]: Cannot open HTTP Port
Jul 14 15:09:02 server1 squid[5315]: Squid Parent: child process 5317 exited due to signal 6
Jul 14 15:09:02 server1 setroubleshoot: SELinux is preventing the squid (squid_t) from binding to port 5000. For complete SELinux messages. run sealert -l 1cf3c788-35f7-4752-8439-92a1d0719466

How do I fix this problem?

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FreeBSD Squid Proxy Caching Server Increase File Descriptors Limits

by on June 18, 2009 · 1 comment

I‘m getting an error which read as follows under FreeBSD 7.2 server and Squid stable caching server:

WARNING! Your cache is running out of filedescriptors

How do I fix this problem and increase the number of system-wide available filedescriptors for FreeBSD server?

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Squid Listen on Other Port ( Squid Configure Port Listing with SELinux)

by on April 20, 2009 · 5 comments

My Squid proxy server running on port 3128. Since this is frequently scanned by adversaries looking for proxy servers; I’ve changed port to 10000 and restart squid. But my squid is not working on port # 10000 it only works on port # 3128? How do I force Squid to listen on uncommon port under CentOS Linux v5.3?

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Squid Proxy Hide System’s Real IP Address

by on February 19, 2009 · 9 comments

My squid proxy server is displaying system’s real IP address. I’ve a corporate password protected squid proxy server located at 202.54.1.2. My clients works from home or offices via A/DSL / cable connections. Squid should hide all system’s IP address, but it is forwarding and displaying the system’s IP address. How do I configure squid to hide client’s real IP address?

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Update FreeBSD Using Proxy Server (csup / portsnap proxy update)

by on November 19, 2008 · 1 comment

Question: How do I upgrade my FreeBSD server and ports tree using our proxy server, which requires username and password based authentication?

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Squid Proxy WARNING! Your cache is running out of filedescriptors error and solution

by on June 16, 2008 · 6 comments

I’ve Squid Proxy server with over 100 Windows workstation. I see following error message in my cache.log file – “WARNING! Your cache is running out of filedescriptors”. Do I need to filter proxy server requests to avoid this problem? How do I fix this problem under CentOS / Fedora / RHEL / Debian Linux?

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How To Use Proxy Server To Access Internet at Shell Prompt With http_proxy Variable

by on May 9, 2008 · 26 comments

I’m behind a squid proxy server. How do I access internet via proxy server when I use wget, lynx and other utilities from a shell prompt?

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