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Old 15th October 2009, 19:47
briandelshasta briandelshasta is offline
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Default More ISPConfig 3/MyDNS questions

I've trolled around these forums for some time now and I've experimented with multiple multi-server ispconfig 3 installations trying to understand how to make master/slave dns environments work.

I've read what seems to be conflicting information, sometimes even from either Falko or Till. Of course there's a pretty good chance I'm simply misunderstanding...

Here's my understand as to the options available:
1) Setup ISPConfig 3 master server. Setup second ISPConfig 3 server and join it to the master during installation. It is only necessary to install MyDNS and the web gui if you want to be able to login to the second server and look at it.
Finally, setup mysql replication between the two servers.
or
2)use zone transfers, an option that is not recommended
or
3?)I've also read that mysql replication is supposedly "built in" and that it should happen automatically when the slave server is joined to the master ISPConfig server during installation. Although this would be great, I have not found this to be the case. Perhaps it's just not implemented yet?

Ok,
Here are the questions I have regarding the respective numbers above:
1)Is anything actually gained currently by joining a slave ispconfig 3 server to a master during installation? I do notice that both systems show up under 'monitor' and 'system', but I do not understand the benefit. Nothing appears to be "clustered" in any way. The two servers do not seem to be able to talk to each other other than a modicum of service monitoring. Regardless, is there any difference between joining two servers during installation and adding the two together after they've been setup separately?

Also, I've setup mysql replication, but in this instance it seems very touchy. I have to be careful not to touch the slave database at all or the replication process errors and must be reset before replication can continue.

Even when replication is working correctly I'm confused about the SOA. If the master is NS1 and the slave is NS2, replicating the SOA from NS1 will of course leave NS1 as the SOA on NS2. Is this a problem?

2)I've haven't been able to get this to work, but I'm not that concerned. I haven't messed with it much and I'd rather do it the recommened way.

3)Is there is anything regarding replication built in to ISPConfig 3 or is that just bad information I read?

Thanks for your time.
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