lkml.org 
[lkml]   [1997]   [Sep]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: ipv4 bind()ing bug
Date
> zero.  Normal un*x behavior is to assign a "random" port number
> between IPPORT_RESERVED (1024) and IPPORT_USERRESERVED (5000). Linux,
> however, assigns a port number between 1024 and 32767. This can be a

Solaris does something similar as do SGI nowdays - its a big win to do so,
and 4000 user ports isnt enough.

> IPPOR_USERRESERVED. This can also screw with firewalls and packet
> filters which assume normal clients only use port numbers in the
> 1024-5000 range.

Your packet filter is badly set up if its using ports for tcp client/server
filtering not SYN|!ACK

Alan


\
 
 \ /
  Last update: 2005-03-22 13:40    [W:0.060 / U:0.088 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site