title: git through SOCKS proxy won't respond after a while
body: <p>I'm using a SOCKS proxy to push changes to a repo only allowed from a specific IP, the command I use is <code>'ssh -D port -f -C -q -N user@xxx.xxx.xx.xx'</code> and everything works ok, but after some time when I try to pull or push this is the error that returns: <code>Failed to receive SOCKS5 connect request ack.</code> However I use this same proxy for Firefox and it never stops working. </p>
  
  <p>Any idea why this is happening and how to solve it?</p>