site unavailable after install and reboot and plonectl start

Ubuntu 10.04 system. new Plone install, went fine and created some content, everything seemed fine. New kernel update and a reboot later, Plone is running but will not present any pages to a browser. In fact, a browser attempt just times out. I can telnet to the port 8080 on the system and send an HTTP get by hand and nothing comes back. The log file for client1 in a zeo install keeps repeating:

2011-08-10T16:59:57 INFO ZServer HTTP server started at Wed Aug 10 16:59:57 2011
    Hostname: 0.0.0.0
    Port: 8080
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2011-08-10T16:59:57 INFO Zope Set effective user to "plone"
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2011-08-10T17:00:02 INFO ZEO.ClientStorage zeostorage ClientStorage (pid=24596) created RW/normal for storage: '1'
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2011-08-10T17:00:02 INFO ZEO.cache created temporary cache file '<fdopen>'
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2011-08-10T17:00:02 INFO ZEO.ClientStorage zeostorage Testing connection <ManagedClientConnection ('127.0.0.1', 8100)>
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2011-08-10T17:00:02 INFO ZEO.zrpc.Connection(C) (127.0.0.1:8100) received handshake 'Z3101'
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2011-08-10T17:00:02 INFO ZEO.ClientStorage zeostorage Server authentication protocol None
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2011-08-10T17:00:02 INFO ZEO.ClientStorage zeostorage Connected to storage: ('dns', 8100)
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2011-08-10T17:00:02 INFO ZEO.ClientStorage zeostorage No verification necessary -- empty cache
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2011-08-10T17:00:22 INFO ZServer HTTP server started at Wed Aug 10 17:00:22 2011
    Hostname: 0.0.0.0
    Port: 8080

I haven't been abl开发者_高级运维e to find any other info on what is causing this, nor can I find any documentation on debugging a Plone install.

Thanks for any help you can provide.

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Forgive the aborted answer, misread the log snippet. The repeated log entries you're seeing are what you'd expect to see from repeated restarts. Are you repeatedly restarting the instance? If not, then in it seems your instance is restarting on it's own. Shut down the instance and start it using "bin/instance fg" and see if that gives you more information.