# pam_access

## NAME



           pam_access - PAM module for logdaemon style login access control
    


## SYNOPSIS



    
           **pam_access.so**[debug] [nodefgroup] [noaudit] [accessfile=_file_]
                         [fieldsep=_sep_] [listsep=_sep_]
    


## DESCRIPTION



           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. Then
           individual *.conf files from the /etc/security/access.d/ directory
           are read. The files are parsed one after another in the order of
           the system locale. The effect of the individual files is the same
           as if all the files were concatenated together in the order of
           parsing. This means that once a pattern is matched in some file no
           further files are parsed. If a config file is explicitly specified
           with the **accessfile** option the files in the above directory are
           not parsed.
    
           If Linux PAM is compiled with audit support the module will report
           when it denies access based on origin (host, tty, etc.).
    


## OPTIONS



           **accessfile=**_/path/to/access.conf_
               Indicate an alternative access.conf style configuration file
               to override the default. This can be useful when different
               services need different access lists.
    
           **debug**
               A lot of debug information is printed with syslog(3).
    
           **noaudit**
               Do not report logins from disallowed hosts and ttys to the
               audit subsystem.
    
           **fieldsep=**_separators_
               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.
    
           **listsep=**_separators_
               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.
    
           **nodefgroup**
               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.
    


## RETURN VALUES



           PAM_SUCCESS
               Access was granted.
    
           PAM_PERM_DENIED
               Access was not granted.
    
           PAM_IGNORE
               **pam_setcred** was called which does nothing.
    
           PAM_ABORT
               Not all relevant data or options could be gotten.
    
           PAM_USER_UNKNOWN
               The user is not known to the system.
    


## FILES



           /etc/security/access.conf
               Default configuration file
    


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