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[Xen-users] xen guest IP roll call

Date: Wed, 5 May 2010 20:39:36 -0700 (PDT)

Delivery-date: Wed, 05 May 2010 20:40:55 -0700

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List-id: Xen user discussion <xen-users.lists.xensource.com>

This must be an FAQ: How to find the IP address of a Xen guest? Here's a simple approach using a local webserver and the wget command. Your webserver is at $WS, this is also gateway on my network. Now we need an init file that fires at the end of the boot sequence: --Ubuntu, Redhat (maybe Debian) use /etc/rc.local --OpenSuSE use /etc/init.d/after.local Setup inside each domU ---------------- /etc/rc.local ------------ #!/bin/sh #at now + 1 minute <<EOF wget --spider http://$WS/favicon.ico?NameU?HostU #EOF exit 0 ---------------- end ---------- where NameU is the domU name and HostU is the dom0 name. Now when each domU boots, its IP address will be in the httpd log. If your network is slow to come up, uncomment the chron script wrap above and below the wget command. Simply grep the /var/log/httpd/local_access.log for favi, and all the IP's will be grouped. I see this in my httpd log 192.168.1.115 - - [04/May/2010:13:45:25 -0700] "HEAD /favicon.ico?ubsvr91pv?ga-p45 HTTP/1.0" 200 - 192.168.1.234 - - [04/May/2010:13:45:37 -0700] "HEAD /favicon.ico?karmicpv?ga-p45 HTTP/1.0" 200 - 192.168.1.243 - - [04/May/2010:13:45:49 -0700] "HEAD /favicon.ico?fc12pv01.tlviewer.org?ga-p45 HTTP/1.0" 200 - 192.168.1.233 - - [04/May/2010:13:46:02 -0700] "HEAD /favicon.ico?fc12pvg.tlviewer.org?ga-p45 HTTP/1.0" 200 - 192.168.1.114 - - [04/May/2010:13:46:02 -0700] "HEAD /favicon.ico?suse11pv?ga-p45 HTTP/1.0" 200 - 192.168.1.112 - - [04/May/2010:13:46:05 -0700] "HEAD /favicon.ico?fc12pv.tlviewer.org?ga-p45 HTTP/1.0" 200 - 192.168.1.231 - - [04/May/2010:13:46:09 -0700] "HEAD /favicon.ico?supvops?ga-p45 HTTP/1.0" 200 - 192.168.1.116 - - [04/May/2010:13:46:24 -0700] "HEAD /favicon.ico?c564pv.tlviewer.org?ga-p45 HTTP/1.0" 200 - 192.168.1.224 - - [04/May/2010:13:50:13 -0700] "HEAD /favicon.ico?lucidpv?ga-p45 HTTP/1.0" 200 - _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users

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