apt install through corporate proxy

Assuming proxy service like CNTLM is up and running on Ubuntu machine, one can use apt-get to install package with specifying http proxy information as follow:

$ 
$ sudo apt-get -o Acquire::http::proxy="http://user:password@host:port/" install PACKAGE_NAME;

Pip install via local proxy server behind secured firewall

Just found that PIP install works so well at home but not in office. One of the restriction is the firewall security to prevent non-http traffic passing through during package installation. Here's a trick:

Changing from this:

$
$ pip install --upgrade git+git://github.com/XXXXX/YYYYY.git

to this:

$ # x.y.z.s is IP address
$ # port is port number
$ pip --proxy=x.y.z.s:port install --upgrade git+https://github.com/XXXXX/YYYYY.git

Most firewall won't block http/https traffic which is supposed to be categorized as web traffic.