How to setup github access through corporate firewall

I had troubles cloning and pushing to my github account. My company has a firewall and all internet accesses are through the corporate firewall. Hopefully, I found an easy way to get access to my account with the following steps. I'm using msysgit 1.7.6 on a Windows 7 machine.
Configure the github global property http.proxy:

git config --global http.proxy http://host:port

Access your git repository through the http protocol. For public repositories it's

git clone http://github.com/username/project.git

And for private repositories, use the following command (you'll be prompted for your password):

git clone https://username@github.com/username/project.git

If you want to push your changes to your github account, you have to change the URL for your remotes and use the same format as specified above.