Les Mikesell wrote: > On Fri, Dec 2, 2011 at 12:59 PM, <m.roth at 5-cent.us> wrote: >> >>>>>>>> And we have our DHCP give out IP by MAC addresses, so they're >>>>>>>> effectively static. >>>>>>> >>>>>>> If you've done that, you might as well put them in DNS. Linux >>>>>>> tools >>>> <snip> >>>>>> Um, no can do: we don't run the DNS here on campus (a US gov't >>>>>> federal agency), we have blocks of IPs assigned to us. Within >>>>>> our division, we control the horizontal, we control the vertical.... <g> >>>>> >>>>> If you are giving out DHCP addresses, you are almost certainly giving >>>>> out DNS server addresses, and you can point that to one or more that >>>>> you control (probably on the same box(es) as the dhcp service). And >>>> >>>> Les, you're missing the point: we are not *supposed* to be running a >>>> DNS server. There's another division that does that, the same one that >>>> assigns us the blocks of IP addresses. Please don't confuse me with >>>> the OP. >>> >>> I don't even understand what that means. Is there a mandate to do >>> things wrong? Would someone fire you if you used windows for your >>> DHCP service and it was a version that had AD running as a DNS service >>> too? >> >> Ok, you *have* confused me with the OP. We run almost *no* Windows here, >> at least on the servers or workstations we support in this division. >> They do actual science here, and Windows...rotfl! running scientific >> compute clusters? To do what, figure out the first 100 decimal places of >> pi in a month? > > So nobody ever needs a name/ip mapping to the nodes anyway? We do map. We even have a master hosts file for the division. But DNS is not our purview. > >> And running another DHCP server on the network is *not* a Good Thing, >> and I feel as though we'd get a lot of grief if we did. Rules and >> regulations, forget "corporate" rules. > > I thought you said you _were_ running a DHCP server. And the part We are. In fact, each cluster head also runs a DHCP server, for all their nodes. > that confuses me is why anyone would split the addressing and naming > authority into something that doesn't match the topology. That is, if > you are working together with whoever runs the DNS I'd expect the > name/IP mapping to be coordinated, probably with a central DHCP as > well, or if your network management is delegated to you, then you'd do > both independently. But if you are running something unusual that > doesn't care about names or DNS then it doesn't matter... We have a subnet that we control. We do the IPs. We give names, then register them with the group that does the whole campus, and they update the DNS. mark > > -- > Les Mikesell > lesmikesell at gmail.com > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >