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Cloud Servers security questions...
Hey! So this is my first time moving an entire server from on site to the cloud that is not a web server and have some questions regarding security that maybe some of you could help with! 
We currently have a production Kerio server on Linux (red hat) that we want to move to the cloud and are curious what security considerations we should be aware of? I know we will setup the internal linux firewall with the appropriate rules, however should we worry about using a cloud hosting providers firewall? Or is that not really worth it?
Anything else to consider with an email server being on the cloud minus a couple open ports like 25, 443?
Thanks!
We currently have a production Kerio server on Linux (red hat) that we want to move to the cloud and are curious what security considerations we should be aware of? I know we will setup the internal linux firewall with the appropriate rules, however should we worry about using a cloud hosting providers firewall? Or is that not really worth it?
Anything else to consider with an email server being on the cloud minus a couple open ports like 25, 443?
Thanks!