September 1, 2015 at 9:42 pm
We have a 4 node cluster environment with multiple instances, Due to vulnerability issues of UDP port 1434 , they asked me to stop the SQL browser services ?
Is it advisable to stop the SQL browser service???
Thanks,
Lavanya
September 1, 2015 at 10:16 pm
* Make sure that all apps and people who connect to the instances are configured to use the port number. They cannot continue to use the instance name without the Browser service running.
* Make sure you've set static port numbers in SQL Server Configuration Manager, they default to dynamic and thus can change, though it rarely occurs.
* Make sure there's no cluster dependency on the Browser service otherwise stopping and disabling it might cause the cluster to fail over.
That's about it. There *ARE* some extremely poorly idiotically written Enterprise applications which refuse to work unless the Browser service is running (and thus also fail if it's not on the same subnet and the routers don't pass on broadcast packets). But thankfully they're very rare.
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