The pam_access PAM module is mainly for access management. It
provides logdaemon style login access control based on login names,
host or domain names, internet addresses or network numbers, or on
terminal line names, X $DISPLAY values, or PAM service names in case
of non-networked logins.
By default rules for access management are taken from config file
/etc/security/access.conf if you don't specify another file.
If Linux PAM is compiled with audit support the module will report
when it denies access based on origin (host, tty, etc.).
Indicate an alternative access.conf style configuration file to
override the default. This can be useful when different services
need different access lists.
A lot of debug information is printed with syslog(3).
Do not report logins from disallowed hosts and ttys to the audit
This option modifies the field separator character that
pam_access will recognize when parsing the access configuration
file. For example: fieldsep=| will cause the default `:'
character to be treated as part of a field value and `|' becomes
the field separator. Doing this may be useful in conjunction with
a system that wants to use pam_access with X based applications,
since the PAM_TTY item is likely to be of the form "hostname:0"
which includes a `:' character in its value. But you should not
This option modifies the list separator character that pam_access
will recognize when parsing the access configuration file. For
example: listsep=, will cause the default ` ' (space) and `\t'
(tab) characters to be treated as part of a list element value
and `,' becomes the only list element separator. Doing this may
be useful on a system with group information obtained from a
Windows domain, where the default built-in groups "Domain Users",
"Domain Admins" contain a space.
User tokens which are not enclosed in parentheses will not be
matched against the group database. The backwards compatible
default is to try the group database match even for tokens not
enclosed in parentheses.
Access was granted.
Access was not granted.
pam_setcred was called which does nothing.
Not all relevant data or options could be gotten.
The user is not known to the system.
The logdaemon style login access control scheme was designed and
implemented by Wietse Venema. The pam_access PAM module was developed
by Alexei Nogin <email@example.com>. The IPv6 support and the
network(address) / netmask feature was developed and provided by Mike
This page is part of the linux-pam (Pluggable Authentication Modules
for Linux) project. Information about the project can be found at
⟨https://fedorahosted.org/linux-pam/⟩. If you have a bug report for
this manual page, see ⟨https://fedorahosted.org/linux-pam/report⟩.
This page was obtained from the tarball Linux-PAM-1.3.0.tar.gz
fetched from ⟨http://www.linux-pam.org/library/⟩ on 2017-03-13. If
you discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for the
page, or you have corrections or improvements to the information in
this COLOPHON (which is not part of the original manual page), send a
mail to firstname.lastname@example.org
Linux-PAM Manual 04/01/2016 PAM_ACCESS(8)