by the way, i changed to nginx basic_auth and when I enter
wrong credentials, it allows me endless tries. i'm was used
to apache gives a 5xx page after three bad tries. i guess you
could refresh that and try again in apache too, but endless
tries without a error for nginx? is there a way to change this?

> I have set up HTTP auth using the auth_pam module (although
> I'm not sure that module is the problem - it might be nginx
> problem).
>
> https://github.com/stogh/ngx_http_auth_pam_module/
>
> All works great for a while----
>
> After some time, browsers begin to prompt for authentication
> over
> and over again (I guess once for every image, stylesheet,
> script, etc?).
> Or maybe it is prompting because the credentials failed, but
> I don't
> think so because if I hit cancel/ESC over and over again, I
> can use
> the web page (I'm still authenticated), but none of the
> images or
> scripts have loaded.
>
> The logs don't show any indication of what caused the
> prompts to
> start showing. Previously, I saw this error (in nginx's
> error log)
> associated with the situation:
>
> Can't initialize threads: error 11
>
> This looks a little like a MySQL error (I use pam_mysql
> behind
> auth_pam).I don't know if there is some bad code in
> auth_pam
> causing this(?). Restarting nginx fixed the prompting in
> this case.
>
> However, today, the prompting started again and the above
> error
> does NOT appear. I don't see any errors. Browser doesn't
> matter -
> tried it on firefox, mobile, whatever.
>
> I will try to test with just the built-in basic auth but
> that's not a long
> term solution for me, I need pam/mysql behind the auth (lot
> of virt
> users).

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