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Re: X forwarding: trying to forward to busy local port

To: openssh-unix-dev@mindrot.org
Subject: Re: X forwarding: trying to forward to busy local port
From: Jim Knoble <jmknoble@pobox.com>
Date: Mon, 19 Feb 2007 12:40:25 -0500
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Circa 2007-02-19 06:06 dixit Lars Kruse:

: Maybe I get something wrong, but for now the setting "AdressFamily any"
: seems to severely degrade the reliability of X-forwarding setups.
: Did someone already file a bug report for this behaviour? I could not
: find any. Otherwise I would like to do create one.

Anyone know if there's an IPv6 equivalent to Linux's
/proc/sys/net/ipv4/ip_local_port_range (equivalent to the
'net.ipv4.ip_local_port_range' sysctl)?  Under IPv4, this twiddles the
port range available when connect(2)-ing without specifying the local
endpoint's TCP port number.

If there is such a twiddle for IPv6, you might be able to use it to work
around this problem.  For example, with the IPv4 setting:

    su root -c sysctl -w 'net.ipv4.ip_local_port_range=7000 65535'

Best,
jim

-- 
jim knoble  |  jmknoble@pobox.com  |  http://www.pobox.com/~jmknoble/
(GnuPG key ID: 6F39C2CC  >>>>>>  http://www.pobox.com/~jmknoble/keys/ )
(GnuPG fingerprint: 5024:D578:7CF4:5660:7269::F6F3:B919:9307:6F39:C2CC)
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