CentOS as router, transparent proxy, and much more

Mon, 16 Sep 2013 18:59:19 +0000

As usual, long story short: I’ve to setup a firewall to log traffic, block some stuff and do some other things.
– epel repo is required –
The system is made of a single CentOS machine with 2 physical network adapters:

eth0, connected to WAN, static IP address 192.168.0.3
eth1, connected to LAN, static IP address 10.0.0.1/24

.:. Network adapters configuration

WAN network adapter:

[root@CentOS ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE="eth0"
BOOTPROTO="none"
HWADDR="**:**:**:**:**:**"
IPADDR=192.168.0.3
NETMASK=255.255.255.0
GATEWAY=192.168.0.1
DNS=192.168.0.1
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
NM_CONTROLLED="yes"
ONBOOT="yes"
TYPE="Ethernet"
UUID="***"

LAN network adapter:

SquidGuard on nagg.eu

CentOS as router, transparent proxy, and much more

.:. Network adapters configuration