Hello,
I am trying to test stunnel to see if it can provide the functionality we need. We are a Windows shop. What we need is for multiple client machines (I call these C1, C2, C3) to connect to our server (S). Server S will connect to a remote SFTP server (port 22). I call the remote SFTP server "R". C1, C2, C3 and S are all inside our firewall. Currently S can connect and send files to R using SFTP (port 22). The problem is that R does not accept a range of IP addresses, and has a limit on the number of IP addresses they can accept.
So, what I need is for C1, C2, C3 to be able to connect to server R using S as a jump host.
From R's perspective, it should be like the connection is coming from S.
Question 1: can stunnel be used to accomplish this?
Question 2: I have installed stunnel in a test server ("stunnel -install" actually from the bin folder), and configured the conf like this:
[sftp] accept=127.0.0.1:22 connect=some.remote.server.com:22
I tried to use Winscp SFTP client to test a connection, but it times out. I then checked S, and I don't see anything listening on port 22. I did "netstat -a" and I don't see anything listening on port 22.
Was something wrong in the "stunnel -install" command? Shouldn't it be listening on port 22? Also, I uncommented the entry for log, but I don't see any log file in the stunnel folder/subfolders
; Debugging stuff (may be useful for troubleshooting) debug = info output = stunnel.log
Thanks for your help, Cecilia