Advanced Blocking Settings
Advanced Blocking Settings Overview
By default, RdpGuard blocks all server ports for blocked IP addresses. Advanced Blocking Settings let you block selected ports instead. For example, block RDP on port 3389 while leaving HTTP and HTTPS accessible.
How to configure Advanced Blocking Settings
Click Tools, Options.
Click Tools, Options The Options dialog will open:
RdpGuard Options dialog On the General tab, click Advanced blocking settings...
The Blocking settings dialog will open:
How to block access to all ports To block all ports, keep Block access to all server ports (recommended) selected.
To block selected ports, clear this checkbox and enter port numbers separated by commas, for example 21, 25, 110, 3389. RdpGuard blocks both TCP and UDP on these ports.
How to block only particular ports Click Save in the Blocking settings dialog, then click Save in Options.
Performance Considerations
Avoid blocking individual ports when working with large IP lists. RdpGuard creates separate TCP and UDP filters for each selected port. Blocking four ports repeats the blocked IP list eight times in Windows Filtering Platform (WFP), compared with once when blocking all ports.
Larger WFP configurations consume more resources and can slow down rule updates and network traffic. Keep Block access to all server ports (recommended) enabled unless you specifically need blocked addresses to retain access to other ports.
Longer blocking periods also keep more IP addresses in the blocklist. The default is 24 hours.
RdpGuard protects:
- Remote Desktop
- MS-SQL Server
- FTP Protocol
- HTTP Protocol
- IMAP Protocol
- POP3 Protocol
- SMTP Protocol
- IIS Web Login
- MySQL Server
- ASP.NET Forms
- RD Web Access
- VoIP (SIP Protocol)
- SSH Protocol
- MS VPN (RRAS)
"This sotware is really great. It's a relief. Because my server is constantly under attack. Thanks RdpGuard" - Joaquim De Sousa Marques
"Nice product. I used to implement something similiar in a low-tech and cumbersome manner via a script called TSBlock (not mine). This makes it much easier and is well worth the pricetag for SMB's." - J. Johnson
"Absolutely amazed at your product. We are a church in the North Dallas area, and I discovered this morning multiple failed logon attempts via our Remote Access Server. A friend suggested your product, so I immediately downloaded the trial. It had a list of about five blocked IP addresses in minutes, and that was enough to lead me to push the BUY button. Over the past 10-15 minutes the list is now about thirty with at least a third being international attempts to break into our system. Thanks for a great product. You may have just saved us much grief." - John Hallford
"Love the software. RDP on our Windows servers is just ridiculous. We would block it in the router but we have lots of old-time customers that would have issues." - Scott Hirsch
"Love the software! Makes it easier than tailoring VB Scripts!!" - Nick Brennan
"It's a great product - really stopping those RDP attackers :-)" - Dave, UK
"First of all: Your application is very (!!!) useful and I like it very much securing my 2012 R2 server. RdpGuard is the best solution, I found on the market and after 10 minutes of testing it I ordered the fully-featured version. :-)" - Carsten Baltes