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]

Message-ID: <398df9351d5c9aec1ba69511d9dc6a70@visp.net.lb>
Date:	Wed, 26 Jan 2011 15:23:38 +0200
From:	denys@...p.net.lb
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Daniel Baluta <daniel.baluta@...il.com>, <netdev@...r.kernel.org>
Subject: Re: 40k+ outbound connections and bind() problem

 On Wed, 26 Jan 2011 14:17:14 +0100, Eric Dumazet wrote:
> 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
 No, it is not one ip source.
 As i mention before, i am binding each instance to different IP before 
 connect().
 And when i am having issues and such errors, i am trying httping and 
 binding it to some unused ip, but still getting this error.
--
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