I am setting up maintenance processes for servers. I want a method where I can make servers unavailable to users until maintenance has been completed. I expect during the maintenance times the servers will be rebooted several times and just because the server is up doesn't mean it is ready.
I also want to be able to access these servers remotely via my VPN connection.
I have a Cisco SG-300 switch so I may be able to isolate the servers but that would be tough as some of the are domain controllers and I don't want to start having servers throw errors because it can't see the DCs, etc..
Can anyone recommend a method to help isolate the server while performing maintenance and at the same time allow me to have remote access.....