Guide to building a Linux or BSD router on the PC Engines APU platform. MIT License. 92 stars.  The completed router configuration will enable: An egress Ethernet interface for Internet routing - can be connected to WAN or a cable modem. A local wireless interface on / A local Ethernet interface on / This guide will show you how to setup Network Address Translation (NAT) on the router (kernel and iptables), add and configure common services (Domain Name System (DNS) via dnsmasq, dhcp via dhcpcd, ADSL via rp-pppoe), and conclude with more elaborate and fun things that can be done (port forwarding, traffic shaping, proxies/caching, etc).  LAN utilizes the private xxx network. router is hardcoded to the standard IP. router is running Linux or ; you're on your own with / Important: Due to security precautions, I would highly suggest you shut down any unneeded services on the router until we have a chance to get the firewall up and rolling. To view the currently running services, just run rc-status. 2. Kernel setup (know thyself first). Настройка маршрутизации в Linux, для начинающих (ubuntu linux route ifconfig).  Настройка маршрутизации в Linux. Настройка маршрутизации в Linux, для начинающих (ubuntu linux route ifconfig). Содержание. Правила маршрутизации определяют, куда отправлять IP-пакеты. Данные маршрутизации хранятся в одной из таблиц ядра. Вести таблицы маршрутизации можно статически или динамически. Статический маршрут - это маршрут, который задается явно с помощью команды route. Динамическая маршрутизация выполняется процессом-демоном (routed или gated), который ведет и модифицирует таблицу маршрутизации на основе сообщений от других компьютеров сети. In order to get a working, updated Fwbuilder installed on Ubuntu, follow these steps You will either have to su to the root user or use sudo for this to work :. More router guides templates linux stuff networking-forum. The NSA publishes security configuration guides on many types of IT systems, from network gear to operating systems, with a heavy focus on Cisco IOS routers and switches. Once complete, click the Finish button and the template will be loaded guidees the Router Guides Templates 95 main screen see Figure 4. Upon completion lnux the firewall do the following:. As soon as the installation is router guides templates linux, the firewall will be running.

Learn more. Apply Learn more Login. Join Now. Join a Community. Objective Standards Our security best practices are referenced global standards verified by an objective, volunteer community of cyber experts. Secure Online Experience CIS is an independent, non-profit organization with a mission to provide a secure online experience for all. Information Hub. What's New. When the Create New Firewall button is clicked, a wizard will appear to help create the new firewall.

Because I recommend first-time users select from the pre-configured templates, the wizard will require the following:. The first step in the wizard see Figure 2 is to give the firewall a name, choose the software running the firewall, and select the operating system running the firewall. For our example the configurations will be:.

The name for the firewall can be any user-specified name required to indicate the purpose the firewall serves. Most all Linux users will select this option. As I mentioned earlier, for this test firewall, the Router Guides Templates Not Working pre-configured firewall templates will be used. The first screen in the wizard is where the option for pre-configured templates is chosen. After this option is chosen, the templates will be presented in the next screen see Figure 3.

Make sure to read the description of the templates, otherwise the wrong template could be chosen resulting in a non-functional firewall. Finally, in the last screen of the wizard see Figure 4 , the network interfaces are named. Since each pre-configured template offers different hardware configurations such as a single external interface, versus a single external and single internal interface the screen displayed will depend upon which firewall template is selected.

In my example, I am creating a firewall for a single interface host which happens to be a desktop machine. The desktop machine uses Router Guides Templates Vmware DHCP for network addressing, so nothing really needs to be changed in the screen shown in Figure 3.

Should the device use a static address, then the address for the network interface would need to be entered. Once complete, click the Finish button and the template will be loaded into the main screen see Figure 4. Fwbuilder now has a basic template ready to be edited.

If this is just a very basic firewall for instance, for a single desktop machine a lot of times the firewall based on the template will work, with little or no modifications. But to really take advantage of the power of fwbuilder, it is important to know how to build and add objects.

To do this a new object must be built. To add a new machine, a new Host object will be added. To do Router Guides Templates Vpn this, follow these steps:. Configure as many hosts as needed to be added to the firewall. With these hosts now added to the Object Tree, it is possible to drag and drop those hosts into the firewall. To do this expand the navigation tree for Hosts, find the desired host to be added, and drag and drop the host into the firewall.

Of course it is best practice to first create a new rule in your firewall chain that can accommodate the new object. To create a new rule, follow these steps:. The new rule will be placed within the chain. This new rule will be fairly generic and will Deny all traffic. Obviously, this new rule must be edited. Since this object is a host, that object will be placed into either the Source or Destination section of the newly created firewall rule.

Since the newly created Host object lives within the internal network and assumes that host can be trusted it will be added to the new rule as a Source and will be allowed to pass through the firewall. Find the newly created Host Object in the Object Tree and drag and drop it to the Source section of the newly created rule see Figure 5. It was updated as recently as June 7, They've added links to additional references, and even a checklist at the end.

It's well worth the time to read and understand as much as you can. The NSA guide is old. The Cisco guide is actively maintained, and just better. Go with the Cisco guide. Configuration hardening guides By stretch Friday, October 31, at a.

UTC Do you harden your network device configurations? If not, you may want to start doing so. Posted in Resources. Support PacketLife by buying stuff you don't need! Eric October 31, at p. DuncanM October 31, at p.

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