getty

You can run a service called getty to enable login on the serial interface.

To enable getty, append the following line to the list of gettys in the /etc/inittab file:

7:12345:respawn:/sbin/agetty 9600 ttyS0

Note – It does not matter where you append this line in the list.

Note – Make certain that the first number is unique within the inittab file.

The list of gettys currently looks like the following:

#Run gettys in standard runlevels 1:2345:respawn:/sbin/mingetty tty1 2:2345:respawn:/sbin/mingetty tty2 3:2345:respawn:/sbin/mingetty tty3 4:2345:respawn:/sbin/mingetty tty4 5:2345:respawn:/sbin/mingetty tty5 6:2345:respawn:/sbin/mingetty tty6

securetty

To add the serial-console device /dev/ttyS0 to the file /etc/securetty, run the following command:

# echo ttyS0 >> /etc/securetty

66 Sun Fire V20z and Sun Fire V40z Servers, Server Management Guide • May, 2004

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Sun Microsystems V20Z, V40z manual Getty, Securetty, List of gettys currently looks like the following