HowtoForge - Linux Howtos and Tutorials - DNS

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.

Installing And Using The Unbound Name Server On Debian Etch

Tue, 27 May 2008 18:18:05 +0200

Installing And Using The Unbound Name Server On Debian Etch

Unbound is a validating, recursive, and caching DNS resolver, released under a BSD license. Version 1.0.0 was released on May 20, 2008. This tutorial explains how to install and use it on Debian Etch, including the creation of zones for your own domains.

Running A MyDNS Name Server On OpenBSD (MySQL/PHP + MyDNS + MyDNSConfig)

Mon, 31 Mar 2008 18:28:33 +0200

Running A MyDNS Name Server On OpenBSD (MySQL/PHP + MyDNS + MyDNSConfig)

This tutorial shows how to run a MyDNS name server on an OpenBSD server. It covers the installation of MySQL, PHP, MyDNS, and MyDNSConfig, the web frontend for the MyDNS name server.

Virtual Hosting Howto With Virtualmin On CentOS 5.1

Sun, 02 Mar 2008 18:34:44 +0100

Virtual Hosting Howto With Virtualmin On CentOS 5.1

This tutorial shows how to set up a CentOS 5.x server to offer all services needed by virtual web hosters. These include web hosting, smtp server with (SMTP-AUTH and TLS, SPF, DKIM, Domainkeys), DNS, FTP, MySQL, POP3/IMAP, Firewall, Webalizer for stats.

How To Install And Use The djbdns Name Server On Debian Etch

Tue, 22 Jan 2008 17:54:57 +0100

How To Install And Use The djbdns Name Server On Debian Etch

djbdns is a very secure suite of DNS tools that consists out of multiple parts: dnscache, a DNS cache that can be used in /etc/resolv.conf instead of your ISP's name servers and that tries to sort out wrong (malicious) DNS answers; axfrdns, a service that runs on the master DNS server and to which the slaves connect for zone transfers; and tinydns, the actual DNS server, a very secure replacement for BIND.

Installing MyDNS And The MyDNSConfig Control Panel On CentOS 5.1

Mon, 17 Dec 2007 17:42:50 +0100

Installing MyDNS And The MyDNSConfig Control Panel On CentOS 5.1

In this tutorial I will describe how to install and configure MyDNS and MyDNSConfig on CentOS 5.1. 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.

Installing MyDNS And The MyDNSConfig Control Panel On Mandriva 2008.0

Thu, 13 Dec 2007 17:17:58 +0100

Installing MyDNS And The MyDNSConfig Control Panel On Mandriva 2008.0

In this tutorial I will describe how to install and configure MyDNS and MyDNSConfig on Mandriva 2008.0. 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.

Installing MyDNS And The MyDNSConfig Control Panel On Fedora 8

Thu, 06 Dec 2007 19:24:19 +0100

Installing MyDNS And The MyDNSConfig Control Panel On Fedora 8

In this tutorial I will describe how to install and configure MyDNS and MyDNSConfig on Fedora 8. 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.

Lintrack As A LAN Gateway And An OpenVPN Bridge

Wed, 09 May 2007 19:16:06 +0200

Lintrack As A LAN Gateway And An OpenVPN Bridge

This tutorial will guide you through installation and configuration of Lintrack, a GNU/Linux distribution specialized in networking tasks. We will give two LANs access to the internet along with DHCP and DNS cache servers, and then we will connect our networks using OpenVPN in bridging mode. You should be running all these in well under an hour, thanks to the unified configuration interface of Lintrack.