8.26. How do I add pseudoterminals to the system?

If you have lots of telnet, ssh, X, or screen users, you'll probably run out of pseudoterminals. Here's how to add more:

1. Build and install a new kernel with the line

          pseudo-device pty 256
        
   

   in the configuration file.

2. Run the command

        # cd /dev
        # ./MAKEDEV pty{1,2,3,4,5,6,7}
        
   

   to make 256 device nodes for the new terminals.

3. Edit /etc/ttys and add lines for each of the 256 terminals. They should match the form of the existing entries, i.e. they look like

          ttyqc none network
        
   

   The order of the letter designations is tty[pqrsPQRS][0-9a-v], using a regular expression.

4. Reboot the system with the new kernel and you're ready to go.