Remote Desktop secrity

I have a Server where some user use to connect into with Remote desktop, yesterday I noticed in the log start showed me a lot logon failed using account name are not exist in  my environment so somebody is tried to connect attacking the port I think  so my question is what I can do?

I already have gateway with SSL in that remote  

so I need to change the port? which options I have?

my server  windows 2008 R2 and  I have a fortinet Firewall

no to many experience
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Justin EvansCommented:
even if you do change the port of the RDP session and change it on the firewall,  it will be possible to discover this from port scanning software.  what you could do is implement a VPN to your servers rather than enabling RDP through the firewall.  If you don't want to do this have a password audit to ensure that the passwords are stronger than a possible dictionary attack scenario.

kind regards


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Justin EvansCommented:
as well you could restrict the IP addresses to your RDP session that you allow
Shaun VermaakTechnical SpecialistCommented:
You can also look at RDPGuard

Process to investigate and possible remediations such as RDPGuard listed here

Use ssl web vpn on FortiGate with 2 factor authentication. This is more secure than allowing using VIP policy.

Good Luck!
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