Posts Tagged ‘family shield’

Why should you change your DNS server

2 January, 2012

Questions

How to increase internet speed
How to prevent phishing attacks
How to block proxy websites for schools
How to change DNS server

Wiki DNS Server

DNS Server translates URL names to IP addresses.
It has also been used by ISPs to redirect to advertisements.
http://en.wikipedia.org/wiki/Domain_Name_System

Why do you need a DNS server?

To access any website, say Google, you need to know only its URL, that is http://www.google.com, you need not know the IP address where the website is running from, which is actually an alternate way, http://74.125.236.81/.

DNS server resolves the easy-to-remember URL to its corresponding not-so-easy-to-remember IP address.

Flushing existing DNS

Once resolved, the URL-IP is saved for a few hours/days locally.
Open CMD prompt and give the following commands
ipconfig /flushdns

Benefits of using DNS servers

Faster DNS resolution
Phishing protection
Web content filtering
Detailed statistics
Typo correction
No software to install
Real time protection

Free DNS Providers

Check out each DNS servers to find out what features they provide

Google Free DNS

8.8.8.8
8.8.4.4
http://code.google.com/speed/public-dns/

OpenDNS

208.67.222.222
208.67.220.220
https://store.opendns.com/get/home-free

OpenDNS (Family shield)

208.67.222.123
208.67.220.123

Norton DNS Security

198.153.192.60
198.153.194.60
https://dns.norton.com/dnsweb/dnsForHome.do

How to change DNS

There are two methods to change DNS.

1. Changing DNS for individual computer

Control Panel > Network Connections > {your internet connection} > Properties > Internet Protocol (TCP/IP) > Properties > General tab > Use the following DNS server addresses
Enter the Primary and Secondary DNS Server name.
Note : Changing DNS will not affect your IP address.

Changing DNS settings

Changing DNS settings

2. Changing DNS for the Router for all connected computers

Open the router setting website. Generally http://192.168.0.1/ or http://192.168.1.1/
Enter login ID and password. Generally admin and admin.
Navigate to Interface Setup > LAN
Change DNS Relay option to Use User Discovered DNS Server Only
Enter the Primary and Secondary DNS Server name.
Note : The above mentioned settings may vary from router to router.

DNS Setting for Router

DNS Setting for Router


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