Blatantly stolen from http://www.macosxhints.com
After upgrading to Tiger, I noticed an infuriatingly long delay when
trying to connect to remote hosts via SSH in Terminal.
After some poking around, I finally figured out that SSH under 10.4 is
checking for IPv6 addresses as well as IPv4 addresses, and is hanging
until its search times out. The solution is simple:
Open up Terminal
Edit the /etc/ssh_config file as root (note this is
not /etc/sshd_config). Just type sudo emacs /etc/ssh_config; replace
emacs with your favorite editor
Add the following line to the file:
AddressFamily inet
Save and close the file. Under emacs this is done via Control-X
Control-C Y
Or, if you're uneasy about putting it into the config file for the
entire box, you could put it into ~/.ssh/config
YMMV, but it did work here, and from what I read, worked for many
others
B
----- Original Message -----
From: Scott Haneda <lists@newgeo.com>
Date: Monday, June 6, 2005 4:04 pm
Subject: Re: Working out a OS X 10.4 Tiger ssh implementation issue,
slow logins
on 6/6/05 9:22 AM, David Benfell at benfell@parts-unknown.org wrote:
On Sat, 04 Jun 2005 16:20:28 -0700, Scott Haneda wrote:
There are scattered reports, and various solutions to an issue
where ssh
logins take in excess of 30 seconds to instantiate a connection
to a remote
host. There are various workarounds, but there is no consensus.
<snip>
debug3: Trying to reverse map address ip.add.re.ss.
<snip>
If I change to my own recursive resolver, the problem does go
away.
However, this was not needed in 10.2 or 10.3 OS X. So in some
ways, it does
seem to be DNS related, but I am not sure just exactly where.
<snip>
I just compared the man pages for sshd_config from a 10.3 system
and a
10.4 system. In the 10.4 system, the VerifyReverseMapping
option is
missing. I would suggest adding this option with an argument of
No.
Isnt sshd_config for the remote server end of the deal, not the
client side,
which is what is hanging?
--
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