SmoothWall Express 3.0 SP3
SmoothWall Express 3.0 SP3 | 557 MB
SmoothWall Express is a modular firewall and VPN-gateway based on Linux, designed to meet the needs of network security.
Easy to install and configure the SmoothWall Firewall does particularly well suited for businesses without security experts on staff. The system is controlled through the Web Gui, need to know the Linux command line is missing.
Without a good firewall today simply can not do, especially if you are using a broadband Internet connection. But what firewall you choose? How about a free solution that can work on the old "iron", a graphical configuration interface and the installation and configuration to handle even a novice user? We offer to meet with Smoothwall Express 3.0.
Smoothwall is a software solution to make old computer a complete firewall, on the capabilities and performance not inferior to many hardware versions. Smoothwall Express is distributed under the GPL and is based on Linux, however, unlike many other solutions based on Linux, Smoothwall boasts a graphical user interface settings. Using the browser, you can customize even the most advanced features are absolutely without any problems.
Smoothwall is aimed at all users, from home to network administrators, but once we note that the Express will be particularly appealing to home users is. On-line context sensitive help can even inexperienced users to make a technical guru. Smoothwall Express is free, but also offers a version of Smoothwall Corporate Server, which of course costs money, but offers more features.
Smoothwall can work with several types of Internet connections, for example, ISDN, ADSL or even dial-up connection. We decided to use all three zones of Smoothwall, setting the web-and mail servers in the orange zone. After installation is complete, you can connect to the web-administration interface from any computer with Smoothwall of green space. When you connect you will see the following page:
Home web-interface (Control: Home).
If you just installed Smoothwall, then on the home page appears on the availability of updates. Smoothwall is updated very peculiar. First need to download updates to your computer, and then, using web-based Smoothwall, to download the file to Smoothwall, as shown below.
Update (Maintenance: Updates).
After the upgrade, you can move on to configuring Smoothwall. A firewall has built-in server DHCP (dhcpd), web-proxy (squid) and intrusion detection systems (snort). Additionally, a dynamic name service DDNS, which operates, for example, with Dyndns.org, SSH server, and even IPsec VPN (FreeSWAN). Each service is easily configured via a web-interface. The following is an example of setting up a server DHCP:
Services: DHCP (Services: DHCP).
Some services offer to configure a large set of parameters, while others, such as SSH, the number of options is limited to only one or two ticks.
Services: Remote Access (Services: Remote Access).
All services are easily configured using the web-based interface, which, although it does not provide access to the wealth of options, enough to start and run services in most configurations. Another great feature of the web-interface - is an online help system. After reading the hint, you can easily configure, even for those services that used to be for you a "white spot". Help is displayed in a separate window, allowing you to simultaneously read and configure the system.
We believe that the online help system is one of the most important advantages Smoothwall. Many users often do not have the patience to find out online or in the leadership of a particular function, but almost all "clicked" on the right button if the need arises. This possibility, in our opinion, gives a huge advantage over Smoothwall many other web-interfaces that we've met before, especially for those who first sets up a firewall.
Smoothwall is also based on the Java web-interface SSH, which is shown below.
Shell SSH (Tools: Shell).
Using the built-in SSH, as well as any other client SSH, you will have access to the command line interface where you can edit configuration files manually or perform settings that are not represented in the web-interface.
By default Smoothwall allows Internet access to all systems of green and orange bands, can send requests from the Green Zone in an orange, but not vice versa. All incoming requests from the Internet (except for port 113) are discarded. Rules can be changed by clicking on the tab "Network / Networking" web-interface. For example, since we are working in the orange zone and web-based mail servers, we were allowed to forward packets on ports 80 and 25, as shown below.
Port forwarding (Networking: Port Forwarding).
Adding and removing rules is performed in a single click. Shown above, we removed the temporary rule, created to test the performance Gnutella.
After Smoothwall is configured, you can periodically check the state of the system. Smoothwall is also a great show: you can view not only the status page, but the traffic information provided graphically. Below shows how the page looks "Traffic Graphs".
Display of traffic (about: Traffic Graphs).
You can "click" on any interface and graphics look detailed schedule for the day, week, month or year. In addition to the status of pages and graphics, is present here and page view logs. Some magazines are displayed in clear text, but others, such as "Firewall / Firewall" and "Intrusion Detection / Intrusion Detection System", formatted for better viewing. The page "Firewall / Firewall" even includes checkboxes and buttons for browsing and blocking IP-addresses.
Please note that the system can detect attacks only detect attacks. Smoothwall does not block them, if they are not subject to rules prohibiting the firewall. If you set up port forwarding, make sure the system on which redirect traffic (hopefully it is in the orange zone), are not affected, which are now set.
Smoothwall to quickly and easily change their passwords, back up and run small utilities (whois, ping and traceroute). In general, the system is fairly functional and meets the needs of many users.
However, we found a few flaws. First, clean up your entire hard drive during installation is too drastic a solution, especially given the fact that Smoothwall is based on Redhat, which has always offered excellent facilities for working with during the installation. Secondly, we are not pleased with the inability to edit a web-based file / etc / hosts, though, of course, you can use SSH and adjust it manually. Third, Smoothwall uses for time synchronization NTP, but does not support this service for the green and orange bands. And finally, Smoothwall provides name resolution DNS, but only for the green zone. Computers located in the orange zone, name resolution will have to use external servers DNS (eg, provider). Note that all these problems can be solved easily, only a little work with the system. Remember, the inside running Linux, so you can change anything, just want the main thing
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