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Instead of using gettys like most normal Unix versions, Solaris uses SAF, (Service Access Facility) to control terminal lines, serial printers and modems. This works as follows:

1. At the top level is SAC (Service Access Controller), this is started in inittab (/usr/lib/saf/sac)

2. SAC starts the port monitors listed in /etc/saf/_sactab

3. Two different port monitors exist ttymon and listen
   1. ttymon is responsible for terminal lines, (typically /dev/term/a and /dev/term/b). Generally it calls the login program as defined in /etc/saf/zsmon/_pmtab
   2. listen controls printing (although it has capabilities to control more). It calls the lp facility.

Commands

• sacadm - High level SAF configuration. Add, delete, enable, disable, start and stop port monitors.

• pmadm - Configure port monitors

• ttyadm - Helper utility to format input to pmadm

• sttydefs - Create amd modify entries in /etc/ttydefs (file describing terminal line characteristics).

• nlsadmin - helper utility to format input to pmadm for printers.

Examples

• sacadm -l - lists port monitors

• sacadm -a -p tcp -t listen -c "/usr/lib/saf/listen tcp" -v `nlsadmin -v` -n 9999 - will define the listen port monitor if, for some reason, it wasn't preinstalled. Flags are as follows:
  -a add a port monitor
  -t port monitor type (listen or ttymon)
  -p PMTAG (generally zsmon for ttymon and tcp for listen
  -c command to run for associated port monitor
  -v version number (given by nlsadmin helper command
  -y description for /etc/saf/tcp/_pmtab entry -n number of restarts if monitor dies

  The subdirectory /etc/saf/tcp will be created by the above command.

  The monitor must now be configured with the pmadm command, e.g.

• pmadm -a -p tcp -s lp -i root -v `nlsadmin -v` -m "`nlsadmin -o /var/spool/lp/fifod/listen S5`"

• pmadm -l - will list the port monitors configuration details