nameservers

OpenDNS – The most powerful Free DNS Service

Like many people, I use OpenDNS on my office network. It is a free DNS service that translates the URLs of Web pages into IP addresses. OpenDNS theoretically helps speed up Web browsing by using better DNS servers to resolves URLs faster than your Internet Service Provider (ISP). The increase is probably too small for [...]

How to improve DNS lookups by using multiple nameservers

This tip shows you how to improve DNS lookups by using multiple nameservers. This is useful if you’ve ever had your primary DNS server become unreachable for any reason.

How to Install and Configure a Caching DNS server

BIND DNS are nameservers responsible basically for resolving domain names or hostnames into their equivalent IP addresses. Websites or domain names have their own equivalent IP addresses that are usually managed and provided by the same website firms. If somebody is browsing a website from his browser, this website is being resolved, looked up and [...]

How To Install and Configure Caching DNS on Fedora

BIND DNS are nameservers responsible basically for resolving domain names or hostnames into their equivalent IP addresses. Websites or domain names have their own equivalent IP addresses that are usually managed and provided by the same website firms. If somebody is browsing a website from his browser, this website is being resolved, looked up and [...]

How To Find Out What My DNS Servers Address

Linux / UNIX Find Out Dns Server Addresses The resolver is a set of routines in the C library that provide access to the Internet Domain Name System (DNS). The resolver configuration file contains information that is read by the resolver routines the first time they are invoked by a process. Commend to find out [...]

How DNS Works

Domain name Servers (DNS) are an important but invisible part of the internet, and form one of the largest databases on it. Each machine on an internet is assigned a unique address, called an IP address, which is 32 bit number and is expressed as 4 octets. The method user to represent these IP addresses [...]

28 Steps on how to harden your Linux server

If you run your own Linux server here are some tips on server hardening, liberally stolen from the CFS security GUI script for cPanel/WHM, that I have become only too familiar with since yesterday: On your firewall (you do have one don’t you?) check the incoming MySQL port and if 3306 is open, close it. [...]

Trixbox 2.0 (Asterisk) step by step install guide

Download Trixbox 2.0 ISO image burnt to CD http://www.trixbox.org/downloads Hardware preparation: * Unplug the power cord from the PC. * Install all hardware, including x100p cards. * Plug an RJ11<>RJ11 cable from one x100p card into line 1 of your connected & working VFX ATA (could be a provisioned PAP2 or a WAG54GP2 or an [...]