HowtoForge - Linux Howtos and Tutorials - DNS

Troubleshooting Common DNS Misconfiguration Errors

Mon, 26 Oct 2009 18:10:43 +0100

Troubleshooting Common DNS Misconfiguration Errors

DNS (Domain name system) may not be known to most people who use the Internet but it is the real invisible force driving the Internet without which everyone would be seeing numbers and IPs. The whole meaning of domain names exists today just because of DNS.

Installing MyDNS & MyDNSConfig 3 On Fedora 10

Thu, 21 May 2009 18:20:31 +0200

Installing MyDNS & MyDNSConfig 3 On Fedora 10

In this tutorial I will describe how to install and configure MyDNS and MyDNSConfig 3 on Fedora 10. MyDNS is a DNS server that uses a MySQL database as backend instead of configuration files like, for example, Bind or djbdns. The advantage is that MyDNS simply reads the records from the database, and it does not have to be restarted/reloaded when DNS records change or zones are created/edited/deleted. A secondary nameserver can be easily set up by installing a second instance of MyDNS that accesses the same database or, to be more redundant, uses the MySQL master / slave replication features to replicate the data to the secondary nameserver. MyDNSConfig is an easy to use web-based interface to MyDNS. MyDNSConfig can create all types of DNS records that are available in MyDNS and adds features like user management and access privileges.

Installing MyDNS-NG & MyDNSConfig 3 On Debian Lenny

Tue, 07 Apr 2009 17:49:46 +0200

Installing MyDNS-NG & MyDNSConfig 3 On Debian Lenny

In this tutorial I will describe how to install and configure MyDNS-NG and MyDNSConfig 3 on Debian Lenny. MyDNS-NG is a DNS server that uses a MySQL database as backend instead of configuration files like, for example, Bind or djbdns. MyDNSConfig is an easy to use web-based interface to MyDNS-NG. MyDNSConfig can create all types of DNS records that are available in MyDNS and adds features like user management and access privileges.

Installing PowerDNS (With MySQL Backend) And Poweradmin On Fedora 10

Wed, 11 Feb 2009 18:34:53 +0100

Installing PowerDNS (With MySQL Backend) And Poweradmin On Fedora 10

This article shows how you can install the PowerDNS nameserver (with MySQL backend) and the Poweradmin control panel for PowerDNS on a Fedora 10 system. PowerDNS is a high-performance, authoritative-only nameserver - in the setup described here it will read the DNS records from a MySQL database (similar to MyDNS), although other backends such as PostgreSQL are supported as well. Poweradmin is a web-based control panel for PowerDNS.

Installing PowerDNS (With MySQL Backend) And Poweradmin On Ubuntu 8.10

Wed, 28 Jan 2009 18:50:32 +0100

Installing PowerDNS (With MySQL Backend) And Poweradmin On Ubuntu 8.10

This article shows how you can install the PowerDNS nameserver (with MySQL backend) and the Poweradmin control panel for PowerDNS on an Ubuntu 8.10 system. PowerDNS is a high-performance, authoritative-only nameserver - in the setup described here it will read the DNS records from a MySQL database (similar to MyDNS), although other backends such as PostgreSQL are supported as well. Poweradmin is a web-based control panel for PowerDNS.

Installing PowerDNS (With MySQL Backend) And Poweradmin On CentOS 5.2

Thu, 22 Jan 2009 12:26:39 +0100

Installing PowerDNS (With MySQL Backend) And Poweradmin On CentOS 5.2

This article shows how you can install the PowerDNS nameserver (with MySQL backend) and the Poweradmin control panel for PowerDNS on a CentOS 5.2 system. PowerDNS is a high-performance, authoritative-only nameserver - in the setup described here it will read the DNS records from a MySQL database (similar to MyDNS), although other backends such as PostgreSQL are supported as well. Poweradmin is a web-based control panel for PowerDNS.

Installing PowerDNS (With MySQL Backend) And Poweradmin On Debian Etch

Sun, 18 Jan 2009 18:38:05 +0100

Installing PowerDNS (With MySQL Backend) And Poweradmin On Debian Etch

This article shows how you can install the PowerDNS nameserver (with MySQL backend) and the Poweradmin control panel for PowerDNS on a Debian Etch system. PowerDNS is a high-performance, authoritative-only nameserver - in the setup described here it will read the DNS records from a MySQL database (similar to MyDNS), although other backends such as PostgreSQL are supported as well. Poweradmin is a web-based control panel for PowerDNS.

NAT Gateway, Iptables, Port Forwarding, DNS And DHCP Setup - Ubuntu 8.10 Server

Thu, 08 Jan 2009 11:26:28 +0100

NAT Gateway, Iptables, Port Forwarding, DNS And DHCP Setup - Ubuntu 8.10 Server

So you are too poor to afford another expensive router and want to do things yourself. You have found the right tutorial! This tutorial will show you how to set up an Ubuntu 8.10 router with NAT, port fowarding, a DNS server and a DHCP server.

Speeding Up DNS Access In Regions With Very Low Infrastructure

Thu, 06 Nov 2008 11:47:44 +0100

Speeding Up DNS Access In Regions With Very Low Infrastructure

Let's say you are on an expensive satellite link that can barely provide enough bandwidth for your company's Internet access and you will want to do whatever you can to get as much as possible out of this link. Moreover, occassionally you lose power from the utility company, long enough for your UPS to run out. There are a few things you could do to get a lot more from your link. In this article, we will be looking at speeding up your dns requests by keeping a cache of responses to your dns requests on your hard disk. Subsequent dns request are then served from the cache and because a copy is on disk, you don't lose it when there is a power outage or a reboot.

How To Patch BIND9 Against DNS Cache Poisoning On Debian Etch

Mon, 28 Jul 2008 16:17:45 +0200

How To Patch BIND9 Against DNS Cache Poisoning On Debian Etch

This article explains how you can fix a BIND9 nameserver on a Debian Etch system so that it is not vulnerable anymore to DNS cache poisoning.

BIND 9 Vulnerability And Solution - Patch BIND To Avoid Cache Poisoning (Fedora/CentOS)

Sun, 27 Jul 2008 19:56:59 +0200

BIND 9 Vulnerability And Solution - Patch BIND To Avoid Cache Poisoning (Fedora/CentOS)

I am pretty sure most of you guys have hard about the Vulnerability in BIND. Dan Kaminsky earlier this month announced a massive, multi-vendor issue with DNS that could allow attackers to compromise any name server - clients, too. I thought I would share with you all one of the quickest solutions systems administrators running BIND 9 can use to help solve this vulnerability in case their systems are vulnerable.

Installing A FreeBSD 7.0 DNS Server With BIND

Fri, 18 Jul 2008 16:21:40 +0200

Installing A FreeBSD 7.0 DNS Server With BIND

This tutorial shows how to set up a FreeBSD based server that offers DNS services. This tutorial is written for the 64-bit version of FreeBSD, but should apply to the 32-bit version.

Perfect DjbDNS Setup On Ubuntu Server 8.04 (amd64) Hardy

Thu, 10 Jul 2008 14:41:51 +0200

Perfect DjbDNS Setup On Ubuntu Server 8.04 (amd64) Hardy

DjbDNS is a collection of Domain Name System tools. It includes software for all the fundamental DNS operations. This tutorial shows how to set it up on an Ubuntu 8.04 AMD64 server.

Create Your Own Web Server With BIND And Apache On CentOS 5 (Simplified)

Mon, 30 Jun 2008 18:32:48 +0200

Create Your Own Web Server With BIND And Apache On CentOS 5 (Simplified)

This tutorial explains how you can run your own web server on CentOS 5 with the help of Apache and the BIND name server.

Installing An Ubuntu Hardy 8.04 LTS DNS Server With BIND

Thu, 12 Jun 2008 19:31:14 +0200

Installing An Ubuntu Hardy 8.04 LTS DNS Server With BIND

This tutorial shows how to set up an Ubuntu Hardy Heron (Ubuntu 8.04 LTS) based server that offers DNS services. This tutorial is written for the 32-bit version of Ubuntu 8.04 LTS, but should apply to the 64-bit version.