Hi all,

I have two identical remote servers (with different IPs of course) and am trying to setup a SSH tunnel to them on port 443. I can successfully setup a tunnel to the server01 but not to the server02. I don't need to have both tunnels running at the same time but I am really puzzled because only the first one works.

Both servers are only accessible via a proxy server so no difference there either. When I ssh into the server01, I can easily go to the browser and access the GUI on 127.0.0.1:443 (https://127.0.0.1 to be exact).

But when I close the connection to the first server and SSH into the second server, the GUI will not come up.

Here is my SSH config file:

Host server01
HostName 10.11.12.6
ProxyCommand ssh proxy-staging -W %h:%p
IdentityFile ~/.ssh/id_rsa_user
User centos
LocalForward 443 127.0.0.1:443

Host server02
HostName 10.11.12.80
ProxyCommand ssh proxy-staging -W %h:%p
IdentityFile ~/.ssh/id_rsa_user
User centos
LocalForward 443 127.0.0.1:443


Can someone please help me figure this out please?

Thanks in advance

What's the GUI?

Perhaps check the contents of sshd_config on the two servers, to see if X11Forwarding is allowed on one but not the other.

I sense some confusion* here. The server normally listening and responding on port 443 is secure httpd...that is not "SSH", which normally runs on port 22.

Of course, you can configure ssh to use another port (I don't run sshd on port 22), but choosing 443 is going to conflict with any secure httpd configuration. And, given what you've posted about the sshd.config, you don't appear to be doing that.

If you are connecting with a browser to https://127.0.0.1, you are not using ssh, but rather secure httpd, the configuration for which is in /etc/httpd* directories and files.

Please clarify what you're trying to do...
Also please use tags to post code segments.

*admit that confusion might be mine