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fredlamour

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Hi all,

I am testing actually kerio mail server and it is compliant to my needs.
I have a new demand from my direction to have a access to webmail in case of the network line is broken on our first site.
For this, I want to know if it is possible to have 2 kerio mailserver on 2 different sites and to have a permanant replication beetwen the 2 servers.
I will use different MX records to identify the 2 servers.

If the first server line is broken, users can access the backup server and can find all their mails in the webmail. The second can deal with recieved mails and when the 1 server is up, a new synchronisation of the mail is automatically done.

Is it possible ?
How can it be done in kerio ?

Sorry for my poor english and many thanks in advance for your help.

Regards

[Updated on: Thu, 17 September 2009 10:47]

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j.a.duke

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fredlamour wrote on Thu, 17 September 2009 04:46
Hi all,

I am testing actually kerio mail server and it is compliant to my needs.
I have a new demand from my direction to have a access to webmail in case of the network line is broken on our first site.
For this, I want to know if it is possible to have 2 kerio mailserver on 2 different sites and to have a permanant replication beetwen the 2 servers.
I will use different MX records to identify the 2 servers.

If the first server line is broken, users can access the backup server and can find all their mails in the webmail. The second can deal with recieved mails and when the 1 server is up, a new synchronisation of the mail is automatically done.

Is it possible ?
How can it be done in kerio ?

Sorry for my poor english and many thanks in advance for your help.

Regards


From the discussions here, it appears difficult to keep two Kerio servers in synch.

I'd suggest that you get two internet connections from different service providers and use a multiple WAN router to provide the redundant access.

For example, for one of my clients we have cable internet from both Comcast & RCN being fed into an Ecessa PowerLink 100. In another case, I'm using two DSL connections, one from Verizon, the other from an ISP called Lightning Bolt (Covad reseller) that are fed into a Peplink Balance 300.

In both cases, the router handles the DNS for the domain(s) and routes traffic from the 'net to the server without interruption over both links-if one link does go down, the server is still available. The router also load-balances the outgoing traffic as well so that both connections are used.

This would also ensure that the office never is disconnected from the internet for almost any reason, although most buildings have only one utility entrance "corridor" from the street, so digging in that area may take out both your connections.

Cheers,
Jon
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