Linux 2.6 - man page for pam_access (linux section 8)
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PAM_ACCESS(8) Linux-PAM Manual PAM_ACCESS(8)
pam_access - PAM module for logdaemon style login access control
pam_access.so [debug] [nodefgroup] [noaudit] [accessfile=file] [fieldsep=sep]
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 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 or tty).
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 subsystem.
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 need
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.
MODULE TYPES PROVIDED
All module types (auth, account, password and session) are provided.
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.
Default configuration file
access.conf(5), pam.d(5), pam(7).
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 Becher <firstname.lastname@example.org>.
Linux-PAM Manual 06/04/2011 PAM_ACCESS(8)
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