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Configure IP address in CentOS

## Configure eth0 # # vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=”eth0″ NM_CONTROLLED=”yes” ONBOOT=yes HWADDR=AB:CD:EF:3GH:A2:A4 TYPE=Ethernet BOOTPROTO=static NAME=”System eth0″ UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03 IPADDR=192.168.1.100 NETMASK=255.255.255.0 ## Configure Default Gateway # # vi /etc/sysconfig/network NETWORKING=yes HOSTNAME=centos6 GATEWAY=192.168.1.1 ## Restart Network Interface # /etc/init.d/network restart ## Configure DNS Server # # vi /etc/resolv.conf nameserver 8.8.8.8 # Replace with your nameserver ip nameserver 192.168.1.1 #…

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Install and configure iptables CentOS

Iptables is the most popular packet filtering firewall package in linux. It can be used to set up, maintain, and inspect the tables of IP packet filter rules in the Linux kernel. Iptables interfaces to the Linux netfilter module to perform filtering of network packets. Steps: Install the iptables wihthout gui. [root@server ~]# yum install iptables Install the…

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What is a Dedicated Server?

A dedicated server, is a type of Internet hosting in which the client leases an entire server not shared with anyone else. This is more flexible than shared data center services, as organizations have full control over the server(s), including choice of operating system, hardware, etc. We as dedicated server provider take over most of…

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What is a Data Center Server Colocation?

Colocation (also spelled co-location, collocation, colo, or coloc) is a type of data center services where equipment, space, and bandwidth are available for rental to customers. Most colocation packages are: Single server colocation Quarter rack colocation Half rack colocation Full rack colocation This is a service that you pay for which allows you to store…

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How ARP Spoofing Works

You wonder how hackers got to your packets? Might it have been arp spoofing? ARP Basics ARP is a layer 2 protocol, its full name is actually “Address Resolution Protocol”. Like the name indicates, ARP is used to resolve the layer 3 IP addresses to layer 2 MAC addresses. It works pretty easy, if a…

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