More than 10 open sessions
Markus Friedl
markus at openbsd.org
Wed Jun 2 21:07:01 EST 2004
no, it's not related to MAX_SESSIONS
it's more likely related to:
MaxStartups
Specifies the maximum number of concurrent unauthenticated con-
nections to the sshd daemon. Additional connections will be
dropped until authentication succeeds or the LoginGraceTime ex-
pires for a connection. The default is 10.
Alternatively, random early drop can be enabled by specifying the
three colon separated values ``start:rate:full'' (e.g.,
"10:30:60"). sshd will refuse connection attempts with a proba-
bility of ``rate/100'' (30%) if there are currently ``start''
(10) unauthenticated connections. The probability increases lin-
early and all connection attempts are refused if the number of
unauthenticated connections reaches ``full'' (60).
On Wed, Jun 02, 2004 at 12:50:43PM +0200, Gerwin Udo wrote:
> Hi,
>
> we use OpenSSH_3.8.1p1 and we would like to change the complete printer
> Spool communication from Unix r-Commands to ssh "OpenSSH". Sometimes, we
> have problems, because of very high connection set-ups in extremely
> short time intervals, more than 10 open sessions.
> The connection set-up is partly declined with the error message:
> ssh_exchange_identification: Connection closed by remote host
>
> I think, our Problem is the Parameter "#define MAX_SESSIONS" in
> session.c.
> Have you scheduled to integrate the Parameter "MAX_SESSIONS" as a
> configuration Parameter in sshd_config?
> When not, is it possible to change the parameter "#define MAX_SESSIONS"
> in session.c from 10 to 30 or 50, without getting other Problems?
>
> Best regards
>
> Udo Gerwin
>
>
> Gruss Udo Gerwin
>
> --
> __________________________________________________
>
> Udo Gerwin
> Software Engineer
> Siemens Business Services
> SBS ORS GD AHS CC13
> Riemekestr. 160, 33106 Paderborn
> Tel. +49 5251 8-25663
> Fax +49 5251 8-25603
> mailto:Gerwin at siemens.com
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