Linux Mint 14 has a Network Manager that allows to set proxy settings but unfortunately that do not get applied to system level. [caption id="attachment_71" align="aligncenter" width="555"] Setting Network Proxy Preference in Linux Mint[/caption] To configure apt follow the following steps Go to /etc/apt/apt.conf.d/ Create a file called “30proxy” using a text editor like vi Add the following lines Acquire::http::proxy “http://username:password@host:port/”; Acquire::https::proxy “http://username:password@host:port/”; Acquire::ftp::proxy “http://username:password@host:port/”; [caption id="attachment_75" align="aligncenter" width="665"] Configuring apt to use network proxy[/caption] To configure bash in order to use curl, wget etc behind proxy Add following line in ~/.bashrc export http_proxy=http://username:password@host:port/ export ftp_proxy=http://username:password@host:port/ Don't forget to replace username and pass...