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[Xen-users] ssh in rc.local stalls xenU

To: "'xen-users@xxxxxxxxxxxxxxxxxxx'" <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] ssh in rc.local stalls xenU
From: Steve Brueckner <steve@xxxxxxxxxxxxxx>
Date: Thu, 15 Dec 2005 13:38:29 -0500
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I'm using Fedora Core 4.  I need to create an ssh port forwarding tunnel to
my xen0 domain when my xenU domain starts up, so I added this to the xenU's

ssh -v -f -L 5500:localhost:5501 xen0_ip tail -f /dev/null

This causes my VM to pause for about 3 minutes during boot.  Furthermore,
the ssh tunnel never gets created.  The ssh command is stalling at
"Connecting to (xen0_IP) port 22"

I have null-passphrase authentication keys working, so I can execute the
tunnel manually after I log in.  So why won't the tunnel work before I log

When I try the same trick on the bare-metal host machine and ssh to a
different physical machine, it works fine: no 3-minute stall and the ssh
tunnel is created fine.

So what is it about Xen or my xenU domain that breaks ssh before login, but
not after login?  And what is it about Xen or my xenU domain that breaks ssh
before login, while it works fine for a physical host?

Thanks for any thoughts,

Stephen Brueckner, ATC-NY

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