> 在 2018年8月22日，下午8:54，Matus UHLAR - fantomas <uh...@fantomas.sk> 写道： > > On 22.08.18 20:37, Zhengyu Pan wrote: >> Thank you for your reply. How to switch slave to master in real time? > > If you store the data in a file, simply redefine the zone type, change > "type master;" to > "type slave;” > However, I have hundreds of thousands of zone files in my master. If I modify these zone files sequentially and then reload bind, it will spend a lot of time.
> If you don't keep slave zones in files, you are out of luck. > >> Does bind have command? > > no. > >> Am 22.08.2018 um 12:17 schrieb Zhengyu Pan: >> Because I need to a master as a cold standby. > > the question apparently was, why do you need it. This is not an answer to > that question. > Why I need the second master is that one master may send notify packet unsuccessfully with the increment of slave dns. I need that one part of slave servers connect the first master, the other part of slave servers connect the second master. So i need that these two master’s zone are fully consistent. >> Another master need to >> have the same zone and configuration with the former. When a master >> is down, I need to switch to another master right away. > > slaves can be slaves to multiple servers. Servers can have multiple roles. > > ine server can fetch one zone from its master, but be a master to another > server for the same zone. > How to make a zone is type master for slave dns and the same zone is slave for master in a server. How to configure it in named.conf? > >> In my application scenario, I have two master. Each master connect >> several slave dns. When users update zone, i update these two master >> respectively in a for loop. However, when any master update fails, i >> will roll bock. you know, whenever any update, zone's serial will >> increase. this cause that the serial numbers of zone in two >> masters are >> inconsistent. How can i keep these two masters' zones consistent >> in real >> time? Is using rsync tool a good way? In the industry, is there >> a good >> way to synchronize two masters? > > The one example of this case it the active directory. It supports multiple > masters, BUT: > a DNS server should not be DNS slave to multiple AD servers. The AD servers > contain the data, but serial numbers are unrealiable in this case. > > I'm afraid the same would apply for your application. > > -- > Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ > Warning: I wish NOT to receive e-mail advertising to this address. > Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. > WinError #98652: Operation completed successfully. > _______________________________________________ > Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe > from this list > > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users
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