Comtun Pro

4.5a for Windows

Fernando Ortega

Proxy and firewall for Internet connections in Windows.

Comtun Pro is a shareware proxy server app and networking program developed by Linkbyte Software Inc for Windows, it's well-designed, reliable and efficient.

The download has been tested by an editor here on a PC and a list of features has been compiled; see below.

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A powerful and easy to use Proxy/Firewall for internet connection sharing. ComTun has many...

A powerful and easy to use Proxy/Firewall for internet connection sharing. ComTun has many advanced features useful for both business and home use. With support for access control and banner blocking, you have ultimate control of your connection.

A fully customizable firewall protects you from hackers, and works seemlessly with the proxy service. ComTun uses NAT to give your clients a transparent connection to the Internet, and can be used to configure your clients automatically (with DHCP).

Traditional daemons can also be used, if necessary, but in most cases are only needed to suppliment the NAT connection. System administrators concerned with sharing connections with certain services or to certain sites will find that ComTun offers almost unlimited control over the client connection.

Comtun can be used in your home, small business, even in an enterprise company. After you install and start running Comtun from one of your computers which connects direct to the Internet , all other computers will share the same connection by TCP/IP, thus your computer becomes a gateway between the Internet and your local network. Since the gateway machine acts as a firewall by only opening a few well-known ports, no other users on Internet can access your LAN, thus Comtun protects you from the attack of Internet hackers.

Features of Comtun Pro

  • DNS Forwarding
  • FTP support
  • HTTP support
  • NAT (Network Address Translation).
  • POP3 and SMTP filtering through white/black list, blocking executable attachments, string pattern matching, DNS-based RBL blocklist, etc.
  • POP3 proxy and logging (for incoming emails).
  • SMTP proxy and logging(for incoming and outgoing emails).
  • Supports Spam Assassin
  • Telnet support

Compatibility and License

This download is licensed as shareware for the Windows operating system from network software and can be used as a free trial until the trial period ends (after an unspecified number of days). The Comtun Pro 4.5a demo is available to all software users as a free download with potential restrictions and is not necessarily the full version of this software.

What version of Windows can Comtun Pro run on?

Comtun Pro can be used on a computer running Windows 11 or Windows 10. Previous versions of the OS shouldn't be a problem with Windows 8 and Windows 7 having been tested. It runs on both 32-bit and 64-bit systems with no dedicated 64-bit download provided.


Filed under:
  1. Comtun Pro Download
  2. Proxy Serving Software
Comtun Pro has been picked by our editors as good software.
Comtun Pro has been tested for viruses and malware.
We have tested Comtun Pro 4.5a against malware with several different programs. We certify that this program is clean of viruses, malware and trojans.