netdev - Re: 40k+ outbound connections and bind() problem

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 26 Jan 2011 14:17:14 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Daniel Baluta <daniel.baluta@...il.com>
Cc:	denys@...p.net.lb, netdev@...r.kernel.org
Subject: Re: 40k+ outbound connections and bind() problem

Le mercredi 26 janvier 2011 à 15:00 +0200, Daniel Baluta a écrit :
> Hi,
> 
> > Latest stable, 2.6.37
> 
> Please apply this patch [1] and see if it's still happening.
> 
> thanks,
> Daniel
> 
> [1] http://www.spinics.net/lists/netdev/msg152204.html
> -

I dont think it'll help ;)

Denys problem is if one source IP address is used, there is an absolute
64K limit to (IP, port) tuple

Only thing you can do is to tune /proc/sys/net/ipv4/ip_local_port_range
to get close to 64K limit



--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html