# SSSD Manual pages

sssd 8
sssd System Security Services Daemon
`sssd` options

### DESCRIPTION

`SSSD` provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable backend system to connect to multiple different account sources as well as D-Bus interface. It is also the basis to provide client auditing and policy services for projects like FreeIPA. It provides a more robust database to store local users as well as extended user data.

### OPTIONS

`-d`,`--debug-level` LEVEL
`--debug-timestamps=`mode

  1: Add a timestamp to the debug messages

  0: Disable timestamp in the debug messages

  Default: 1

`--debug-microseconds=`mode

  1: Add microseconds to the timestamp in debug messages

  0: Disable microseconds in timestamp

  Default: 0

`-f`,`--debug-to-files`

  Send the debug output to files instead of stderr. By default, the log files are stored in `/var/log/sssd` and there are separate log files for every SSSD service and domain.

`-D`,`--daemon`

  Become a daemon after starting up.

`-i`,`--interactive`

  Run in the foreground, don't become a daemon.

`-c`,`--config`

  Specify a non-default config file. The default is `/etc/sssd/sssd.conf`. For reference on the config file syntax and options, consult the sssd.conf 5 manual page.

`--version`

  Print version number and exit.

### Signals

SIGTERM/SIGINT

  Informs the SSSD to gracefully terminate all of its child processes and then shut down the monitor.

SIGHUP

  Tells the SSSD to stop writing to its current debug file descriptors and to close and reopen them. This is meant to facilitate log rolling with programs like logrotate.

SIGUSR1

  Tells the SSSD to simulate offline operation for the duration of the offline_timeout parameter. This is useful for testing. The signal can be sent to either the sssd process or any sssd_be process directly.

SIGUSR2

  Tells the SSSD to go online immediately. This is useful for testing. The signal can be sent to either the sssd process or any sssd_be process directly.

### NOTES

If the environment variable SSS_NSS_USE_MEMCACHE is set to "NO", client applications will not use the fast in memory cache.