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block IP from access to my server via VPN

Hello
I have a server and make it as a VPN server for my employees , so my employess access internet on that server via VPN connection.
Because the number of users are rather high I used radius server and Nttacplus as a authentication software.
I notice one unknown users with fixed IP is get online via VPN with strange username and after I check I found out he access our server illegally. I think it is a bug in my authentication software
I want to know is there anyway I block that IP from accessing my VPN server .
for example is there any option in RAS to can block that IP so that user can't access to my server via VPN.

Thank you

Steve

the problem is though that that user can always change their IP address and reconnect to you again.. so by simply blocking an IP address wont fix your problem.. and if one person has found it, others will..

you're much better of investigating the problem further, perhaps upgrading your software to a more stable version, or fixing your configuration so that the problem is repaired for good..

its easier to block an IP address via your router if you have to make a temporary fix while you're repairing..

westdata

ASKER

Thanks for you reply
Yes I need to block IP as temporary solution .
Because this server is located far away we don't access to routers we only access server via RDP.
So is there any solution to block that IP via RAS .

Thank you

ASKER CERTIFIED SOLUTION

Steve

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westdata

ASKER

Thank you