I have installed squid proxy in my Ubuntu system. Something went wrong in the configuration file. So i need to re-install squid.

  1. What is the command to remove squid ?
  2. What is the command to install squid again ?
  3. How can i configure squid to allow only certain ip to access Facebook ?
  • there are few lines in the squid.conf file which i cant understand the purpose the codes......>acl MP3 urlpath_regex \.[mM][pP][3] >acl ZIP urlpath_regex \.[zZ][iI][pP] >acl MP4 urlpath_regex \.[Mm][pP][4] >acl MPEG urlpath_regex \.[mM][pP][eE][gG] >acl BAT urlpath_regex \.[bB][aA][tT] >acl RAR urlpath_regex \.[rR][aA][rR] >acl exe urlpath_regex \.[eE][xX][eE] >acl torrent urlpath_regex \.[tT][oO][rR][rR][eE][nN][tT]
    – surendar
    Jun 10, 2013 at 14:07

1 Answer 1


To remove squid, and all configuration files:

sudo apt-get purge squid

To then install squid

sudo apt-get install squid

When editing system configuration files, I highly suggest you first back up the original.

sudo cp /etc/squid/squid.conf /etc/squid/suid.conf.orig

When editing files, do not delete anything, use comments

#Original line(s)
#Date / reason for edit(s)
New line(s) with edit(s)

Your question about the squid conf file should be separate. As a hint, google search regular expressions.

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