title: What ports need to be open for TortoiseSVN to authenticate (clear text) and commit?
body: <p>What ports need to be open for TortoiseSVN to authenticate (basic) in order to commit? I know it is not a good thing, but I believe username and password are in the clear right now.</p>
  
  <p>Let me describe as much as I know about set-up, and what seems to be happening.</p>
  
  <p>I am a contractor helping a state to deploy and modify a "mostly" public domain application. There is an SVN repository in a different state which contains the application, with read only privileges for everyone.</p>
  
  <p>In order for me to work on the site that I want to deploy, I must create a VPN connection, and then use <a href="http://en.wikipedia.org/wiki/Remote_Desktop_Services#Remote_Desktop_Connection" rel="noreferrer">Remote Desktop Connection</a> to access the machine where the deployment will reside. When I am on that machine, I can browse the repository and export or checkout anything. When I attempt to commit I am prompted with a username/password challenge, and it always fails.</p>
  
  <p>When I am at my home machine, I can commit to the exact same repository and the exact same place using the exact same credentials. I have asked the repository manager to verify that the username I use has all the necessary rights to commit, and I am assured that I do.</p>
  
  <p>So, even though I am getting an error message that describes something like "invalid credentials", I think that the authentication is being blocked. I am attempting to find out whether or not a default SVN installation would use the same listening SVN port, or a different one for authentication. I don't believe the authentication is encrypted.</p>
  
  <p>I'd appreciate any suggestions.</p>