Re: [LUG] DNS / DHCP newbie ish query

[kevin bailey <kbailey@xxxxxxxxxxxxxxxxxxx>]

> DHCP in particular is a bit of a pain to make properly
> redundant. Although the ISC product does have a mechanism for
> DHCP server redundancy, it sucks, and the Microsoft solution
> wasn't any better last time I looked. Microsoft's advice, locate
> DHCP server on highly redundant hardware <doh>.
>  
reminds me of a good example of how linux is being used in big comapnies...

i worked at an insurance company where the DHCP was on a fine server - 
but it had MS windows for the OS.  two thursdays in a row the server 
went down and all the workers realised that all they had to do was to 
logout and try to login again (which failed) and they had an afternoon 
of doing no work ahead of them.   (400/500 staff being paid for bugger all)

on the second thursday - whilst board room was full of 
managers/MSCEs/directors arguing and getting nowhere one of the UNIX 
guys setup linux/DHCP on an old desktop which had been replaced cos it 
was too slow to run MS office - and, of course, it did the job fine.

when i last spoke to him he said it had run perfectly for 3 years - but 
then the harddisk failed.  he had another machine which he quickly 
replaced it with,

oh - and i've tried to install windows 2000 crappy mixture of active 
directory services/DNS/DHCP/ISA/internetsharing over a couple of weeks 
and found i was losing the will to program/live!

kev







> ISC Dynamic DNS doesn't have decent redundancy mechanisms built
> in, if the master is down for too long, upgrade a slave.
>
> One other solution is dnsmasq, which combined simple DNS with
> access to the DHCP lease file. Looked okay for small networks, I
> have a note that I should audit the code before I recommend it.
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