PXEboot / NFS install and rebooting.
Neil Marjoram
n.marjoram at adastral.ucl.ac.uk
Tue Nov 23 14:51:00 UTC 2004
Thanks guy, will look into these suggestions,
Neil.
John Summerfield wrote:
>On Tuesday 23 November 2004 11:40, Harry Hoffman wrote:
>
>
>>Hi Neil
>>
>>run a quick perl script on the messages file to remove/change the
>>symlink in /tftpboot/pxelinux.cfg (or wherever you put it) when the
>>system have booted via tftp
>>
>>something like:
>>
>>ln -sf /tftpboot/pxelinux.cfg/C0A80201 default
>>
>>where default is a localboot.
>>
>>
>
>I Like it.
>
>Even better, there's a package called pop-before-smtp that, amongst other
>things, tails the log and Does Stuff when it gets a match. It's basically a
>Perl script.
>
>I've taken it and made a generalised log tailer that (with a minimal
>user-supplied script) could Do The Right Thing.
>
>What I envisage is my programs (I call it da-blocker) would
>tail /var/log/messages and when it sees a host boot the installer it writes a
>new config for that host that does not cause it to boot the installer.
>
>
>I'm looking for testers. The original purpose was to look for ssh abusers
>trying to get a root shell on my box by employing the tried and trusty
>Dictionary Attack.
>
>
>ps It helps if you inderstand Perl regular extensions or are prepared to learn
>them from supplied docs. I don't wish to go into that topic any time soon
>unless there's lotsa bucks in it.
>
>
>
>
>
>
>
>
--
Neil Marjoram
Systems Manager
Adastral Park Campus
University College London
Ross Building
Adastral Park
Martlesham Heath
Ipswich - Suffolk
IP5 3RE
Tel: 01473 663711
Fax: 01473 635199
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