There is a program running infinitely on remote shell, which doesn't give me access to its login shell.(i.e, Whenever I login I see that program running on the console).
I wan't send SIGKILL or SIGSTOP or SIGSEGV etc to stop it via ssh.
Is it possible to send and access the normal shell?
If the problem is in /etc/profile, note that, over SSH, it is sourced for interactive shells that SSH itself starts. If you run another command, it is not sourced, even if that command is your shell:
ssh -t user@server bash
When a command is specified, SSH assumes you're not running it interactively, and doesn't allocate a pseudo-tty (which can cause problems with some programs). The -t is needed to tell it to allocate a pty anyway.
All of this is moot if your SSH server uses a ForceCommand option. If it does, no matter what you specify to the ssh command, whatever the server's configured to run will be run.
