When a computer is connected to the Internet (or to any network), it is a potential target for attacks. Numerous data packets are sent at random by hackers in order to locate machines connected to the network. They look for holes in security in order to exploit them and access the data on the computers.
Thus, it is necessary, in particular for people with an Internet connection (in particular cable or DSL), to protect themselves against intrusions by installing a firewall system. A firewall is a system that allows users to protect a computer from intrusions from the network (or to protect a LAN from attacks from the Internet).
A firewall also allows you to control access to the network by applications installed on the machine. In fact, the trojans are a type of virus that opens a gap in the system to allow remote control of the machine by a hacker. On the one hand, the firewall allows you to locate suspect connections on the machine, but it also allows you to prevent them.
Tiny Personal Firewall is a personal firewall (i.e., a program intended for use by individuals) that allows you to protect a machine on a network.
Tiny Personal Firewall is free for personal use (professional use must be paid for).
Tiny Personal Firewall supplies a high level of protection, but users will have to have a minimum of knowledge about following protocols TCP/IP. Thus, it is not for beginners. Beginners, however, may make use of a more user-friendly personal firewall such as ZoneAlarm.
This firewall offers three security modes:
The Tiny personal firewall also allows:
The software is very easy to install: first, obtain the most recent version of Tiny Personal Firewall:
Then, just run the application and follow the installation steps.
When you run it for the first time after installation, Tiny Personal Firewall will display a screen in which you can choose the action to take.
At each first use of an application that attempts to connect to the network (web browser, messaging client, FTP client, etc.) Tiny Personal Firewall will show you an alert asking you whether you wish to authorize the application's access to the Internet.
You are also assured that no information can leave your system without your authorization. The checkbox at the bottom of the page (create appropriate filter rule and don't ask me again) means that you only have to respond once for each application, by defining the local ports involved as well as the destination IP addresses with which the program is authorized to communicate.
Similarly, upon each connection request from a network computer, Tiny Personal Firewall will ask you to authorize or refuse the connection, and to create any filter rules appropriate for each type of connection.
Tiny Personal Firewall will appear on the Windows taskbar once it is loaded:
A double-click on this icon allows you access to the configuration of Tiny Personal Firewall.
The configuration interface offers the three security modes listed below on its first tab:
The second tab (miscellaneous) allows you to set a password for access to configuration and the log.
In the first tab (firewall), the Advanced button gives you access to the advanced configuration of tiny personal firewall.
The advanced configuration of Tiny Personal Firewall offers several tabs:
Tiny Personal Firewall allows you to precisely define the filter rules using the avanced firewall configuration interface:
The interface shows all rules set by the user. Each line represents a filter rule set by:
The Add... button allows you to add a rule after the rules already set.
The Insert... button allows you to insert a rule after the selected rule.
The Edit... button allows you to edit the selected rule.
The Delete... button allows you to delete the selected rule.
A right-click on the Tiny Personal Firewall item allows you to access the list of open connections in real time.
The green lines represent incoming communications, while the pink lines represent outgoing communications. Finally, the white lines indicate local applications with open ports, i.e., the applications acting as servers, awaiting a connection.
For more information on firewalls, feel free to consult the page dedicated to the subject. If you have any questions, you can use the <a href=http://en.kioskea.net/forum/>CCM forum</a>.
Here is a list of additional sites on the subject:
Article by [mailto:email@example.com Jean-François PILLOU]