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pam_auth - Squid PAM authentication helper
squid_pam_auth [-n "service name"] [-t TTL] [-o] [-1]
This helper allows Squid to connect to a mostly any available PAM database to validate the
user name and password of Basic HTTP authentication.
Specifies the PAM service name Squid uses, defaults to "squid"
-t TTL Unless the -1 option is used, this specified for how long the connection to the PAM
database should be kept open and reused for new logins. Defaults to 60 seconds.
-o Do not perform the PAM account management group (account expiration etc)
-1 Specifies "One shot" mode, where a new PAM connection will be opened for each new
user. This is how PAM is normally used and may be required by some backend data-
bases. The default is to reuse the PAM connection to maximize performance. (see -t
The program needs a PAM service to be configured in /etc/pam.conf or /etc/pam.d/<service-
The default service name is "squid", and the program makes use of the 'auth' and 'account'
management groups to verify the password and the accounts validity.
For details on how to configure PAM services, see the PAM documentation for your system.
This manual does not cover PAM configuration details.
When used for authenticating to local UNIX shadow password databases the program must be
running as root or else it won't have sufficient permissions to access the user password
database. Such use of this program is not recommended, but if you absolutely need to then
make the program setuid root
chown root pam_auth
chmod u+s pam_auth
Please note that in such configurations it is also strongly recommended that the program
is moved into a directory where normal users cannot access it, as this mode of operation
will allow any local user to brute-force other users passwords. Also note the program has
not been fully audited and the author cannot be held responsible for any security issues
due to such installations.
Squid pam_auth and this manual is written by Henrik Nordstrom <firstname.lastname@example.org>
Squid pam_auth and this manual is Copyright 1999,2002 Henrik Nordstrom <hno@squid-
Questions on the usage of this program can be sent to the Squid Users <squid-users@squid-
cache.org> mailing list.
Report bugs or bug-fixes to Squid Bugs <email@example.com> or ideas for new
improvements to Squid Developers <firstname.lastname@example.org>
pam(8), PAM Systems Administrator Guide
Squid PAM Auth 15 May 2002 pam_auth(8)
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