FAQ 102: Allow DNS Redirector through any firewalls
Category: Initial setup | Updated: 3/6/2010 11:00:25 PM | Read: 568 (Last: 9/3/2010 5:07:20 AM) If a software firewall is enabled on the machine running DNS Redirector some exclusions must be made. Examples: Windows Firewall, ZoneAlarm, Panda Global Protection (or other virus scan/security suite products that include port blocking)
If a hardware firewall is used some TCP/UDP ports must be allowed through.
Resolution
Add an exception for the program executables:
Allow C:\DNSREDIR\dnsredir.exe Allow C:\DNSREDIR\dnsrsvc.exe (if using the v7.x service) Allow C:\DNSREDIR\updater.exe (if using Updater)
Screenshots for some 3rd party software firewalls are available here
If IIS is also installed on this server, you may need to add a port-based exception such as:
Allow TCP port 80 for "IIS"
If a hardware firewall is used ensure the following ports are open:
UDP 53 between the DNS Redirector server and the upstream DNS server (usually your ISP's server on the Internet) UDP 53 between client computers and the DNS Redirector server TCP 80 between client computers and the IIS server (usually the same as the DNS Redirector server)
Related articles FAQ 39 Prevent the DNS Redirector server from attack
Was this article helpful? Votes so far: 48% in 266
/7 