[stunnel-users] Connection rejected: too many clients (>=500)?

Tue Nov 18 21:43:45 CET 2008

I figured it out, actually. Adding a ulimit -n (some number) to the init
script did the trick.

On Tue, Nov 18, 2008 at 12:27 PM, Ludolf Holzheid <
lholzheid at bihl-wiedemann.de> wrote:

> On Tue, 2008-11-18 11:21:38 -0800, Chris Charman wrote:
> > Hey folks --
> >
> > Can anyone tell me where the max number of clients is configured in 4.21?
> > I'm running okay for a while, but then I end up with repeated messages as
> > below in the logs:
> >
> > [..]
> >
> > ------------- Config below -----------------
> >
> > ulimit
> > unlimited
>
> Hi Chris,
>
> At least for my bash, 'ulimit' without any options returns the limit
> for the file size. To get the limit for the number of files, I have to
> type 'ulimit -n' or 'ulimit -a' (and get 1024).
>
> On our linux box, stunnel logs the following on startup:
> >
> > FD_SETSIZE=1024, file ulimit=1024 -> 500 clients allowed
> >
> which seems to match your observation.
>
> I vaguely remember the limit for the number of open files on linux can
> be adjusted somewhere in the /proc file system, but I don't really
> know.
>
> In any case, the limit you are hitting is set by the operating system.
>
> Ludolf
>
> --
>
> ---------------------------------------------------------------
> Ludolf Holzheid             Tel:    +49 621 339960
> Bihl+Wiedemann GmbH         Fax:    +49 621 3392239
> Floßwörthstraße 41          e-mail: lholzheid at bihl-wiedemann.de
> D-68199 Mannheim, Germany
> ---------------------------------------------------------------
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.stunnel.org/pipermail/stunnel-users/attachments/20081118/b9712bac/attachment.html>