VisNetic Firewall description
A packet-filtering software firewall built to protect Windows-based Servers, telecommuters / mobile users, and LAN workstations

VisNetic Firewall delivers protection to security-conscious professionals.

More secure than the average personal firewall or application-level firewall, yet more cost effective than high-end firewalls, VisNetic Firewall provides peace-of-mind through comprehensive intrusion protection.

VisNetic Firewall examines each packet being sent, inside and outside of the network to verify whether the packet is allowed or denied access through the firewall.

VisNetic Firewall guards the computers of Telecommuters/Mobile Users, Windows-based Workstations, Windows-based Servers, and Business Networks.

Here are some key features of "VisNetic Firewall":

Stateful Packet Inspection

VisNetic Firewall falls into a class of firewalls called Stateful Inspection Firewalls. Stateful inspection firewalls determine whether packets can get through the firewall based on the protocol, port, and source and destination addresses. For every request that is allowed by this strategy, stateful inspection firewalls open up a limited time window to allow response packets, but ONLY from the same host.



Port Scan Detection

VisNetic Firewall detects the seven most common forms of port scans, alerting you with a log entry and optionally automatically banning the IP address of the scanner, ensuring that they are "cut off" before they can discover any useful information about your system.



SYN Flood Detection

A SYN Flood is a common type of denial of service (DoS) attack used against servers. When launching a SYN Flood, an attacker bombards you with so many connection requests that your computer is unable to accept legitimate connections, effectively shutting down your web, email, FTP or VPN server. VisNetic Firewall employs SYN cookies to protect you from SYN Flood attacks.



Remote Administration

Using the remote administration component of the Server version of VisNetic Firewall, you can now remotely administer any VisNetic Firewall using an encrypted communications link. You can also reboot or shut down the remote system using the remote admin controls. In addition to remotely administering other Server or Workstation firewalls, you can use the stand-alone Remote Administration Tool to remotely connect to your own Server firewall.



IP Address Ban List

VisNetic Firewall lets you block IP addresses or ranges of addresses to prevent unwanted connection attempts. This can be particularly effective in stopping repeated requests from a hacker who is trying a large number of hacks, looking for one that works.



HTTP Filtering

Using VisNetic Firewall’s HTTP Filtering, you can prevent intrusion attempts targeted at your web server by screening requests and automatically banning the offender’s IP address, preventing further access.



MAC Address Filtering

VisNetic Firewall now has the ability to filter traffic based on MAC addresses. Because a MAC address is specific to one individual network interface, this feature is particularly useful if you want to allow or block traffic from a particular computer whose IP address may change.