I'm trying to tunnel through a public IP to a private server's port 80. I know for a fact that apache is running on port 80 because if I ssh into the public IP I can access the private server via lynx just fine. The command I am using is as follows:
ssh -N -L 9080::80
Then accessing http://localhost:9080 says unable to connect. I'm doing this from OSX. Running ssh -version I get the following in case it matters:
OpenSSH_5.2p1, OpenSSL 0.9.8l 5 Nov 2009
As requested by Ernest, here is some debug. This is after I enter my password. Removed IP address for security purposes.
debug3: packet_send2: adding 48 (len 63 padlen 17 extra_pad 64)
debug2: we sent a password packet, wait for reply
debug1: Authentication succeeded (password).
debug1: Local connections to LOCALHOST:9080 forwarded to remote address :80
debug3: channel_setup_fwd_listener: type 2 wildcard 0 addr NULL
debug1: Local forwarding listening on ::1 port 9080.
debug2: fd 4 setting O_NONBLOCK
debug3: fd 4 is O_NONBLOCK
debug1: channel 0: new [port listener]
debug1: Local forwarding listening on 127.0.0.1 port 9080.
debug2: fd 5 setting O_NONBLOCK
debug3: fd 5 is O_NONBLOCK
debug1: channel 1: new [port listener]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
And then this debug when I make a request:
debug1: channel 3: free: direct-tcpip: listening port 9080 for zmanda port 80, connect from ::1 port 64917, nchannels 5
debug3: channel 3: status: The following connections are open:
#2 direct-tcpip: listening port 9080 for zmanda port 80, connect from ::1 port 64912 (t4 r0 i0/0 o0/0 fd 6/6 cfd -1)
#3 direct-tcpip: listening port 9080 for zmanda port 80, connect from ::1 port 64917 (t4 r1 i3/0 o3/0 fd 7/7 cfd -1)
#4 direct-tcpip: listening port 9080 for zmanda port 80, connect from ::1 port 64918 (t3 r-1 i0/0 o0/0 fd 8/8 cfd -1)
debug3: channel 3: close_fds r 7 w 7 e -1 c -1
debug2: channel 4: open confirm rwindow 2097152 rmax 32768
debug2: channel 4: rcvd eof
debug2: channel 4: output open -> drain
debug2: channel 4: obuf empty
debug2: channel 4: close_write
debug2: channel 4: output drain -> closed
debug2: channel 4: read<=0 rfd 8 len 0
debug2: channel 4: read failed
debug2: channel 4: close_read
debug2: channel 4: input open -> drain
debug2: channel 4: ibuf empty
debug2: channel 4: send eof
debug2: channel 4: input drain -> closed
debug2: channel 4: send close
debug3: channel 4: will not send data after close
debug2: channel 4: rcvd close
debug3: channel 4: will not send data after close
debug2: channel 4: is dead
debug2: channel 4: garbage collecting
debug1: channel 4: free: direct-tcpip: listening port 9080 for zmanda port 80, connect from ::1 port 64918, nchannels 4
debug3: channel 4: status: The following connections are open:
#2 direct-tcpip: listening port 9080 for zmanda port 80, connect from ::1 port 64912 (t4 r0 i0/0 o0/0 fd 6/6 cfd -1)
#4 direct-tcpip: listening port 9080 for zmanda port 80, connect from ::1 port 64918 (t4 r1 i3/0 o3/0 fd 8/8 cfd -1)
debug3: channel 4: close_fds r 8 w 8 e -1 c -1
Answer
So the issue was a few things.
- The web application is running over SSL so I had to do port 443 instead of 80
- For whatever reason, you can't forward 443 to a different local port. So I had to forward to 443.
The final command looked like this:
sudo ssh gdboling@ -N -L 443::443
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