[OpenIndiana-discuss] Synchronizing Sun DHCP servers

[Dave Miner]

On 08/09/12 07:59, James Carlson wrote:
> Jim Klimov wrote:
>>    I wondered if the Sun DHCP server, also provided in OI, supports
>> synchronization of instances - i.e. two boxes providing addresses
>> for the same range, "should" support interchange of leased address
>> lists, defined macros (dhcptab) and so on.
>
> Yes.  The simplest answer is to use the SUNWfiles backend (see
> dhcp_modules(5)), and share the files via NFS between servers.  The more
> complex (but much more scalable) way is via NIS+ (on Solaris 10, but not
> OpenIndiana; NIS+ is dead).  Amusingly, the man page still talks about
> "three" built-in mechanisms but then describes only two.

Good to see you're still better at noticing details than most anyone I 
know :-)

>
> You can also write your own backend to do anything you want; see the
> "Solaris DHCP Service Developer's Guide:"
>
> http://docs.oracle.com/cd/E19253-01/806-6829/806-6829.pdf
>

That would be my suggestion, too.

>>    Perhaps a shared LDAP backend can be implemented?
>
> I'm sure that could be done as well.  I don't recall if it was ever
> done, but I would have expected that it would have been an ARC-required
> portion of the NIS+ to LDAP transition strategy.  I'd expect that Dave
> Miner at Oracle would know for sure if anyone does.
>

No, we never got around to building one; I seem to recall we'd started a 
prototype back in the late '90's but it never got to be a priority.

Dave