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fishtech

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Our primary internet connection is a 50Mb fiber connection (RouterA). Our backup connection is 20Mb DSL (RouterB).

Both are connceted to Kerio Control and configured for failover.

Twice in the past week there have been problems with RouterA and the Connect nicely failed over to RouterB.

Is there any way DNS can be configured (probably at our ISP) for remote clients to know the A name for a Kerio Connect mailserver has switched from RouterA to RouterB at failover time?

I don't know enough about DNS but perhaps there is some redundancy built into DNS for this scenario. Can Round Robin DNS be used for this?

Thanks,

ft.
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Jonas Rodrigues (Kerio)

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Hello,

Have a look at MX records and priorities, that is probably what you are looking for:

https://en.wikipedia.org/wiki/MX_record

As far as I understand your scenario, you could setup 2 MX records, Let's say Router A with priority 10 and Router B with priority 20.


I hope it helps.


All the best,


Jonas

Kerio Technical Support
Log Support Incidents here: http://www.kerio.com/support
Also, please use our KB: http://kb.kerio.com
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giampos

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Sorry Jonas, you are proposing to misuse the Mx function to solve other needs??
This is interesting ! But if in this domain you also need real MX records ?
There's no risk of confusion ??
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fishtech

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Thanks Jonas & giampos.

I am already using MX prioritization. If RouterA becomes unavailable SMTP servers can still send to the Kerio server via RouterB thanks to the prioritization.

However, I am looking for regular client to be able to connect via RouterB, the Kerio Connect web client for example.

Prioritization for A names would be useful but I don;t believe there is any such thing.

Thanks,

ft.
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