DNS issue

Typo   With out* going to clients and flushing

what is AV?

I want to be able to restore a backup of a server in to any of the sites change its ip to suit the subnet  
And have all the clients connected to it (av) instantly be able to find it

what is relation of IP with backup?

Did not get what is requirement?

AV = anti virus

The av agents talk back to the controlling server
If I move this server to another subnet (disaster recovery )
I need to change it's ip
The agents now need there dns cache flushing before they report back

Is there anything I can do to negate this need to flush

Cheers

I don't know if AV supports failover clustering

In that case you need two servers in active / passive mode and can switch back and forth active server and client will report only to active server

Client will get Virtual IP behind which physical IPs will reside and then you don't need to move servers across subnet

because if you keep changing active server IP, DNS cache will not flush automatically until expires or manually flushed

Not what I'm asking
I'm fine with clusters this particular vendor doesn't support   Plus don't want another cluster

As av doesn't stop working with out the controlling server I'm happy for the 15 mins it takes to restore and change ip

The scenario is just having one virtual server    If it fails or issues with main site   I just retire to another site  change its ip  

It all works   But I have to clear the dns cash on the clients (all servers)

I was just wondering if I could negate the need .

Cheers

TTL of 8x hours will create massive problems.

I run TTLs of 10m during production + 1m during migrations.

DNS traffic is so light, it's lost in the noise of other traffic.

Actually sorry  the last bit of your comment fits   I'm looking for methods to avoid that
Tricks even  like adding a nic/ip for each site

Or even     Don't bother it's a dumb idea

Hi to be honest I guessed at ttl I'll check   If it was a minute or two  I think it might be fine

Cheers for the nudge

You could set av server record ttl to 1 minute if wanted to

Link an GPO to the AD Site (instead on OU, domain) that will do the appropriate actions on the AV server

Thanks guys   Have a bigger issue for a few days but will try all suggestions soon as I can


Cheers

Self