AUTH-CLIENT-CONFIG:(8)

NAME
auth-client-config - pam and NSS profile switcher

DESCRIPTION

This program updates nsswitch.conf and pam configuration files to aid in authentication configuration. If the existing nsswitch.conf and pam system configuration does not exist in the profiles database, auth-client-config will comment out the current configuration in such a way that the changes can be undone by auth-client-config with the -r option.

USAGE

auth-client-config -p PROFILE -a -t TYPE [-dn -f FILE]

auth-client-config -p PROFILE -a -t TYPE -r [-n -f FILE]

auth-client-config -p PROFILE -a -t TYPE -s [-f FILE]

OPTIONS

--version
    show program's version number and exit

-h, --help
    show this help message and exit

-a, --all-types
    apply all types for specified profile

-d, --database-only
    update file(s) only if current entries are in database

-f FILE, --file=FILE
    update FILE instead of default

-l, --list-profiles
    list available profiles

-L, --list-types
    list available types

-n, --dry-run
    don't modify anything, just show the changes

-p PROFILE, --profile=PROFILE (required)
    use PROFILE

-r, --reset
    reset file(s) to previous non-auth-client-config values. Will not remove the current entries unless they match PROFILE

-s, --check-system
    determine if system files are set to PROFILE

-S, --show-system
    show current system settings as a profile

-t TYPE, --type=TYPE
    modify files for TYPE. Multiple types can be specified with a comma separated list.

PROFILES DATABASE

Each time auth-client-config is run, it will check the profiles database (by default, #CONFIG_PREFIX#/auth-client-config/profile.d) for authentication profiles. Files may be added to the profiles database directory to support custom authentication configurations. This is useful for a distribution maintainer to have his/her authentication package put an authentication profile into the profiles database, and then have his/her package use auth-client-config to update the system configuration. It also allows for an administrator to set up a single profile for site-wide network authentication roll-outs.

The files in the profiles database use the .INI configuration file standard, and the syntax is:
  [example]
  nss_passwd=nsswitch.conf entry for 'passwd'
  nss_group=nsswitch.conf entry for 'group
  nss_shadow=nsswitch.conf entry for 'shadow'
  nss_netgroup=nsswitch.conf entry for 'netgroup'
  pam_auth=pam entry/entries for 'auth'
  pam_account=pam entry/entries for 'account'
  pam_password=pam entry/entries for 'password'
  pam_session=pam entry/entries for 'session'

If you need to specify multiple entries for a specific type (which is often the case with PAM), then simply list additional entries on a newline preceded by a tab. For example, an entry for local configuration might be:
  [example_local]
  nss_passwd=passwd: files
  nss_group=group: files
  nss_shadow=shadow: files
  nss_netgroup=netgroup: nis
  pam_auth=auth required pam_unix.so nullok_secure debug
  pam_account=account required pam_unix.so debug
  pam_password=password required pam_unix.so nullok obscure \
    min=4 max=8 md5 debug
  pam_session=session required pam_unix.so debug
         session optional pam_foreground.so

Notice how in the above, pam_session has two entries (pam_password in this example should be all on one line, hence the '\').

To use the above entry with auth-client-config, create a file with the above entries in it and put the file into the profiles database directory (typically named after the profile or package that added it). Now call auth-client-config with:
  auth-client-config -a -p example_local

EXAMPLES

Set nsswitch.conf and pam to use the 'example_local' profile:
  auth-client-config -a -p example_local

Set only nsswitch.conf to use the 'example_local' profile, but only if current nsswitch.conf entries exist in the profiles database:
  auth-client-config -t nss -p example_local -d

Restore nsswitch.conf and pam to previous non-auth-client-config files:
  auth-client-config -a -p example_local -r

KNOWN ISSUES

If two or more profiles have the same name, only the last one will be used. Additionally, if a profile in the profiles database has more than one entry for a particular field (eg, two 'nss_passwd' entries), then then the last one read will be used.

auth-client-config strips out all carriage returns when run on Unix.

SEE ALSO

 nsswitch.conf(5), pam(7)

AUTHOR

auth-client-config is copyright 2007-2008 by Jamie Strandboge

This manual page was originally written by Jamie Strandboge <jamie@strandboge.com>