Securing Windows Machine

To reduce the possibility for intruder to spoof into the network is necessary to a static entry in Address Resolution Protocol (ARP) table. ARP table contains a list of IP address with its corresponding MAC address listen by our machine.
ARP Table is normally dynamically set through Address Resolution Protocol (ARP). Shown in the example, by entering the command

arp –a

the operating system will gives the list of IP address with its corresponding MAC address. It is shown in the top command that the type of entry is dynamic. An intruder can spoof into the network and pretend to have the particular IP address.

Such condition can be circumvent by setting a certain IP address to a fixed MAC address. It is can be done through,

arp –s ip.ad.dre.ss mac-add-res-ss

For example,

arp –s 192.168.0.32 00-50-ba-62-f7-e6

To see if the entry is a static entry, we can enter “arp –a” command again and check if the type of static.

For those who use Windows 98, you may have to look for personal firewall software to secure your machine in WiFi infrastructure. Such software can be easily find through Google search.

For those who use Windows XP, you are in luck as XP has a built-in firewall facility. The firewall can be access through Start -> Control Panel -> Network Connections -> Local Area Network -> Properties -> Advanced -> Settings.

We have to check “Protect my computer and network by limiting or preventing access to this computer from the Internet” before we can click firewall Settings button.

In Firewall Settings page, we can check which services we want our firewall will allow Internet users to access into our computer.We can also Add the service if it is not readily available on the Firewall.A facility to configure the Internet Control Message Protocol (ICMP), used in various program such as ping, can also be controlled through ICMP facility.