mod_auth_pam Frequently asked questions (FAQ)

I want to use other authentication modules, how do I turn mod_auth_pam off for one directory?
Use
```
AuthPAM_Enabled off
```
in your .htaccess
I configured mod_auth_pam in the .htaccess as shown above, but Apache doesn't ask for username/password. Why?
Most likely, per-directory authorization configuration is disabled. Use
```
AllowOverride AuthConfig
```
in your access.conf
I get lots of "undefined references" when compiling Apache with your module, why?
You are using Apache 1.3 and an old version of mod_auth_pam.c. Get v0.7 from the downloadables section.
I get "500 server error" instead of a password prompt when trying to access a password protected page. Why?
You are probably using an incorrect .htaccess configuration. Please check your servers error_log for details.
I get "500 server error" after entering the password for a password protected page
The username you entered is probably not in the system database. In that case, mod_auth_pam falls through to mod_auth and mod_auth needs more configuration than mod_auth_pam. Solution: Either disable fall-through or configure AuthUserFile and AuthGroupFile for mod_auth
Does mod_auth_pam work with shadow passwords?
Yes, but you have to make some changes to the shadow password file. See Using Shadow with PAM for details.