I am building an application that will be acting as a combined MUA/MTA on different networks. However, many of the networks are with ISP's that block port 25 for SMTP. Therefore I would also like to open up a secondary port so that some of the installs can communicate on that if port 25 is closed.
How do I choose a second port? I know some people use port 26 or port 2525.
Quite a while ago I got an answer telling me how to add a port-forwarding on a running SSH ControlMaster process. To know that helps a lot, but I'm still missing a way to remove such a port forwarding after I don't need that anymore.
As far as I know, you can do that through the internal command key sequence on normal connections, this seems to be disabled for ControlMaster clients.
My Mic-in port is somehow damaged. I'm not using my Line-in port. SO I want to use my Line-in port as my MIC-in port (Microphone). So that I can continue using skype and other VOIP Apps. If there is any way to reconfigure my port setting Please let me know.