Ubuntu Firewall Router Gateway :
In this article you will learn how to setup your very personal ubuntu router web router. The ubuntu router / gateway will act exactly like any other router you can buy on the retailer, besides your linux box can have extra functionality and extra security. What you will want to build your Ubuntu Router Internet Gateway:
* Extra computer
* (2) Ethernet cards
* Switch
* Ubuntu 8.04 LTS Server Version
* Putty
This article will explain tips on how to setup a fresh install of Ubuntu 10.04 server edition, configuring a dhcp server for an area community,while a including a firewall from the nasty internet. The first thing that you are going to do is a fresh set up of the Ubuntu server edition, however deciding on solely Open SSH server throughout the software set up section of the Ubuntu install. After the set up completes and your computer reboots, you're then going to wish to set a root password (su).
sudo passwd root
After you might have a set a root password, login into root by typing the following command:
su
After you might be in super person mode (root) we're then going to want to replace our Ubuntu Bistro. Kind the following instructions to replace the os and different programs.
apt-get replace
apt-get improve
After your laptop updates, restart it.
reboot
Setup Network Cards
vi /etc/network/interfaces
Within the instance below my eth0 represents the community interface that connects to the internet and the eth1 interface connectsto the switch. The switch then connects to your entire other networked devices, reminiscent of your gaming system and other networked devices. I added the following code into the /etc/network/interfaces file:
Vi /etc/network/interfaces
auto eth1
iface eth1 inet static
address 192.168.10.1
netmask 255.255.255.0
network 192.168.10.0
broadcast 192.168.10.255
/etc/init.d/networking restart
The following following step will not be required, however I wish to set a hostname for my router, all it's a must to do is set up apache and you could possibly have your individual personal intranet or net server.
vi /etc/hosts
echo homeserver.gateway.2wire.net > /etc/hostname
/etc/init.d/hostname.sh start
hostname
hostname -f
Ubuntu Hostname
Once you have completed the next above, you should utilize putty to entry your linux machine from your windows based pc. This will permit you to copy and paste the following code, to hurry up the process of creating your linux gateway. The first thing that you have to do to use putty to configure your Ubuntu router, is ready a static ip on your home windows machine, since we do not have a dhcp server put in yet. Set a static ip deal with for Microsoft Vista.When you don't wish to use putty you can just kind out the rest of the code, putty simply makes it easier. Once you have chosen your terminal program that your are going to make use of, again login below root. It is now time to install some software, that we might want to setup the router.
apt-get install dhcp3-server bind9 vim perl libnet-ssleay-perl openssl libauthen-pam-perl libpam-runtime libio-pty-perl libmd5-perl
Allow packet forwarding
vi /etc/sysctl.conf
Uncomment the following line to enable packet forwarding for IPv4
net.ipv4.ip_forward=1
echo 1 > /proc/sys/net/ipv4/ip_forward
Install Webmin
Webmin is anther good program to make use of to configure you ubuntu router and other server programs that you simply may use. Should you use webmin, you will be able to easily configure you server, utilizing any web browser you choose.
cd /opt
mkdir webmin
cd /opt/webmin
wget http://prdownloads.sourceforge.web/webadmin/webmin-1.430.tar.gz
tar xzvf webmin-1.430.tar.gz
cd webmin-1.430/
./setup.sh
During set up you will be requested just a few questions, just press enter a couple of times. The one thing that you just need to change is the port quantity, consumer title and password and also say yes to SSL.
Ubuntu Webmin
Configure dhcp
Network address - 192.168.10.0
Netmask - 255.255.255.0
Address ranges -192.168.10.100 - 192.168.10.200
After you might have entered the the above click on on the create button. You need to now see a icon that reads 192.168.10.0, click on on this new icon and then click on on the Edit Shopper Choices button.
Subnet mask - 255.255.255.0
Default routers - 192.168.10.1
Broadcast address - 192.168.10.255
DNS servers - 192.168.10.1
After you've got the above into the consumer choices windows click on the save button twice, which should return you to the primary Dhcp server window. Inside the dhcp server display screen, you see a button called Edit Network Interface, click on this button and choose eth1 then click save. Now click on the Begin Sever button, should you see no errors, you're good.
Configure firewall
Input:
Accept if input interface is lo
Accept if input interface is eth0 and state of connection is ESTABLISHED,RELATED
Accept if input interface is eth1
Forward:
Accept if input interface is eth0 and output interface is eth1 and state of connection is ESTABLISHED,RELATED
Accept if input interface is eth1 and output interface is eth0
Now that concludes how to build your own Ubuntu Router Internet Gateway.
No comments:
Post a Comment