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compat -- nispus
Post 1567 by mib on Thursday 15th of March 2001 01:32:19 AM
03-15-2001
Quote:
In /etc/passwd you could have entries of the form +user or +@netgroup (include the specified user from the NIS passwd map), -user or -@netgroup (exclude the specified user) and + (include every user, except the excluded ones, from the NIS passwd map). Since most people only put a + at the end of /etc/passwd to include everything from NIS, the switch provides a faster native for this case (`passwd: files nis') which doesn't require the single + entry in etc/passwd, /etc/group and /etc/shadow. If this is not sufficient, the NSS `compat' service provides full +/- semantics. By default, the source is `nis', but this may be overriden by specifying `nisplus' as source for the pseudo-databases passwd_compat, group_compat and shadow_compat.
If compatibility with the +/- syntax for passwd required (default nis):
passwd: compat
If the use of +/- syntax is desired in conjunction with nisplus:
passwd: compat
passwd_compat: nisplus
Hope this will help you
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nss-systemd
NSS-SYSTEMD(8) nss-systemd NSS-SYSTEMD(8) NAME
nss-systemd, libnss_systemd.so.2 - Provide UNIX user and group name resolution for dynamic users and groups. SYNOPSIS
libnss_systemd.so.2 DESCRIPTION
nss-systemd is a plug-in module for the GNU Name Service Switch (NSS) functionality of the GNU C Library (glibc), providing UNIX user and group name resolution for dynamic users and groups allocated through the DynamicUser= option in systemd unit files. See systemd.exec(5) for details on this option. This module also ensures that the root and nobody users and groups (i.e. the users/groups with the UIDs/GIDs 0 and 65534) remain resolvable at all times, even if they aren't listed in /etc/passwd or /etc/group, or if these files are missing. To activate the NSS module, add "systemd" to the lines starting with "passwd:" and "group:" in /etc/nsswitch.conf. It is recommended to place "systemd" after the "files" or "compat" entry of the /etc/nsswitch.conf lines so that /etc/passwd and /etc/group based mappings take precedence. EXAMPLE
Here is an example /etc/nsswitch.conf file that enables nss-systemd correctly: passwd: compat mymachines systemd group: compat mymachines systemd shadow: compat hosts: files mymachines resolve [!UNAVAIL=return] dns myhostname networks: files protocols: db files services: db files ethers: db files rpc: db files netgroup: nis SEE ALSO
systemd(1), systemd.exec(5), nss-resolve(8), nss-myhostname(8), nss-mymachines(8), nsswitch.conf(5), getent(1) systemd 237 NSS-SYSTEMD(8)