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Re: cygwin 1.5.21-2: ssh-add unable to connect to ssh-agent with McAfee installed

On 10/10/06, Tim Beuman <> wrote:

I still have problems with ssh-agent/ssh-add when I install McAfee.
Browsing over the internet didn't yield a working solution. Before I
could stop McAfee and it would work but with the latest version of
McAfee (version 10?) disabling McAfee doesn't make any difference
anymore. Only an uninstall of McAfee makes things work again but this is
not an option.

A search of the mailing lists yielded other reports of the same problem
but no real solutions.

After some digging in the source I found that ssh-agent keeps waiting in
the select for ssh-add to connect. For whatever reason ssh-add seems to
be unable to connect to the AF_LOCAL socket created by ssh-agent.

Attached the strace files from ssh-agent and ssh-add as well as the
cygcheck output.

DELETED Ridiculous amount of stuff that probably should have been in an attachment.

I am not familiar with the home version of McAfee VirusScan, but I do
run VirusScan Enterprise 8.0i, patch 11 at work.

Buffer Overflow Protection is disabled by default at the ePolicy
Orchestrator (management server) level because it broke a large number
of applications.

I would see if you can just disable that feature.

Also, if McAfee is the definitive problem, turn on all the logging for
McAfee and see if they tell you what they are blocking.

The home version of the product may have a lot more of their firewall
built in to it for all I know.

All this version does is simple port blocking and a little bit of
worm-like behavior blocking (which you may also want to check out if
you can).

My two guesses would be Buffer Overflow Protection and Access
Protection (that is what they are called in my version).


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