I've added these to enable Software Center and Update Manager under proxy network
Open terminal, and type this in the shell
Code:
$ gsettings set org.gnome.system.proxy mode 'manual'
$ gsettings set org.gnome.system.proxy.http enabled true
$ gsettings set org.gnome.system.proxy.http host 'http://mycompanyproxy.com'
$ gsettings set org.gnome.system.proxy.http port 8080
$ gsettings set org.gnome.system.proxy.http use-authentication true
$ gsettings set org.gnome.system.proxy.http authentication-user 'myusername'
$ gsettings set org.gnome.system.proxy.http authentication-password 'mypassword'
That will enable the Software Center and Update Manager to be able to use HTTP to retrieve package info.
Then, I've also added the proxy config into apt config, to enable the apt download and install the updates / packages.
Open terminal, and type this in the shell
Code:
$ sudo gedit /etc/apt/apt.conf.d/20proxy
Acquire::http::Proxy "http://myusername:mypassword@mycompanyproxy.com:8080"
Bookmarks