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Install PowerDNS, MySQL, Poweradmin on Debian 6

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This article shows how you can install the PowerDNS nameserver (with MySQL backend) and the Poweradmin control panel for PowerDNS on a Debian Squeeze 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. read more...
permapage | score:7835 | -falko, August 31, 2011

Install PowerDNS and Poweradmin on Fedora Linux

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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. read more...
permapage | score:7834 | -falko, February 13, 2009

DNS: MX Records Explained

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This article is a nice introduction to the DNS MX record and its usage.
The MX record shows that all emails @ mydomain.com should be routed to the mail server at mydomain.com. The DNS record shows that mydomain.com is located at 216.34.94.184. This means that email meant for liz@mydomain.com will be routed to the email server at 216.34.94.184. This finishes the task of the MX record. The email server on that server(say sendmail) then takes over, collects the email and then proceeds to distribute it to the user ``liz''.
read more...
mail this link | permapage | score:7819 | -Ray, December 29, 2005

Tutorial: Install a Bind9 Master / Slave DNS System

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In this tutorial two Bind DNS servers will be installed, one as the master and the other as a slave server. For security reasons Bind9 will be chrooted in its own jail. Using two servers for a domain is a commonly used setup and in order to host your own domain you are required to have at least two domain servers. If one breaks, the other can continue to serve your domain. read more...
permapage | score:7807 | -falko, August 28, 2006

Tutorial: Set up MyDNS on Ubuntu with MyDNSConfig

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In this tutorial I will describe how to install and configure MyDNS and MyDNSConfig. 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. read more...
mail this link | permapage | score:7755 | -falko, March 12, 2007

Set up Caching DNS with djbdns on FreeBSD

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Building a local DNS cache will speed up your internet connection since the time for the translation job (converting domain names into IP addresses) will become negligible with the assumption that the DNS cache gets the information from the parent DNS. read more...
permapage | score:7729 | -falko, May 8, 2007

Set up BIND9 for separate internal, external DNS service

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This tutorial shows you how to configure a BIND9 DNS server to serve an internal network and an external network at the same time with different set of information. To accomplish that goal, a new feature of BIND9 called view is used. As a tutorial it will walk you through the whole set up, but initial knowledge of BIND and DNS is required. read more...
permapage | score:7724 | -falko, March 23, 2006

Tutorial: Install MyDNS-NG, MyDNSConfig 3 on Debian

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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. read more...
permapage | score:7702 | -falko, April 10, 2009

Book Review: BIND 9 DNS Administration Reference Book

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BIND 9 DNS Administration Reference Book lists for about $21...
For a reference manual, it seems to hit all the high points and more. What I mean is what I said before; this is the type of book that you refer to when you are trying to figure out a particular problem, not the sort of book you pick up if you are trying to learn BIND administration or have never heard of BIND and DNS.
read more...
permapage | score:7689 | -Ray, October 4, 2007

Patch BIND9 against DNS cache poisoning on Linux

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Dan Kaminsky earlier this month announced a massive, multi-vendor issue with DNS that could allow attackers to compromise any name server - clients, too. These two articles explain how you can fix a BIND9 nameserver on Debian Etch and Fedora/CentOS so that it is not vulnerable anymore to DNS cache poisoning. read more...
mail this link | permapage | score:7672 | -falko, July 29, 2008

Book review: DNS in Action

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The book DNS in Action is a guide to DNS implementation, os specific configuration, and administration. This is a practical book for new sys admin and network architects about how to run and configure DNS. Libor Dostalek and Alana Kabelova has done a good work to put together complicated topic such as DNS and its implementation. The entire book is divided into ten chapters.

We humans take advantage of DNS whenever possible by using terms URLs and e-mail addresses. The first chapter explains the basis of DNS and its principles. read more...
mail this link | permapage | score:7618 | -nixcraft, July 12, 2006

Linux DNS Tutorial

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This tutorial describes the basics of the Domain Name System (DNS) that Linux system administrators should know of. Front-ends and quick templates to set up domain records have a place in managing sites, but when confronted with DNS configurations already in existence, nothing can substitute for knowing and using the fundamentals. read more...
permapage | score:7524 | -falko, April 10, 2006

Using the Domain Name Service (DNS)

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You know my name, look up my number...
...it's estimated that more than 50,000 new domain names are registered each day. The Domain Name Service (DNS, also often referred to as the Domain Name System) was created to help solve this problem. DNS is essentially a huge conga line of servers (called name servers) snaking through the Internet. For any computer connected to the Net, a given DNS server can provide you with that computer's host name and IP address information itself, or the server knows how to find other name servers that will have that information.

In this story we give a general overview of the DNS system, how it's implemented on Linux, and how to configure it. We describe the files that hold the configuration information and host database and where they're located. Sample configuration files are also included to get you started with your own DNS setup.
read more...
mail this link | permapage | score:7502 | -Ray, December 5, 2000 (Updated: August 27, 2003)

Tutorial: Configuring Secondary DNS

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This is the easy part.
A master DNS server contains the zone files which dictate the IP addresses and hostnames for a zone. A slave DNS server contains the same information, but must obtain its information from a master DNS server. For example, when a primary name server starts, it reads the zone information from files on the disk. However, when a slave name server starts, it asks the primary for the information.
read more...
permapage | score:7374 | -Alex, July 27, 2000 (Updated: June 23, 2003)

Tutorial: DjbDNS on Ubuntu Server 8.04

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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.
When a browser wants to contact www.hotwired.com, it first asks a DNS cache, such as djbdns's dnscache, to find the IP address of www.hotwired.com. Internet service providers run dnscache to find IP addresses requested by their customers. If you're running a home computer or a workstation, you can run your own dnscache to speed up your web browsing.
read more...
mail this link | permapage | score:7251 | -falko, July 14, 2008

Tutorial: Run DNS Servers on Debian 6

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This tutorial shows how you can run your own DNS servers (primary and secondary) with ISPConfig 3. To do this, you need two servers with two different public IP addresses and with ISPConfig 3 installed. I will use Debian Squeeze for both DNS servers here to demonstrate the base system setup process and ISPConfig 3 installation, but once you have ISPConfig 3 installed on your servers, the configuration inside ISPConfig 3 is identical, no matter what distribution you use. read more...
permapage | score:7195 | -falko, July 21, 2011

Install PowerDNS, MySQL, Poweradmin on Fedora 12

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This article shows how you can install the PowerDNS nameserver (with MySQL backend) and the Poweradmin control panel for PowerDNS on a Fedora 12 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. read more...
permapage | score:7191 | -falko, June 21, 2010

Tutorial: Install MyDNS, MyDNSConfig 3 on Fedora 10

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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. 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. read more...
permapage | score:7158 | -falko, May 24, 2009

dnstop: Monitor DNS Server Network Traffic In Real Time

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dnstop is a great tool when maintaining a DNS server. Log file can give out required information but dnstop is just like top command for monitoring dns traffic. It is a small tool to listen on device or to parse the file savefile and collect and print statistics on the local network's DNS traffic. You can see information about all DNS clients, DNS queries and much more with this tool. read more...
permapage | score:7143 | -nixcraft, August 4, 2008

Security: Understanding DNS Attacks

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Minimizing the vulnerabilities of the Domain Name System...
Understanding the mechanics behind DNS is important when securing your DNS server. DNS is robust and full featured; understanding what resources each DNS action requires will allow administrators to disable unnecessary features, therefore achieving a minimalist and secure DNS server. This section reviews the basics of DNS mechanics. Domain name information is stored in flat text files called zone files. User requests and server replies are simple text-file searches and take very few system resources. Some newer DNS technologies allow for write access to update record data and other configurations remotely. However, unless write access is explicitly enabled, from an end user perspective DNS should be referred to as a read-only service. DNS is mechanically broken up into records, servers, and their respective chains of authority from the root servers...
read more...
mail this link | permapage | score:7094 | -Ray, May 17, 2004
More articles...
Abstract Art by Ray Yeargin

Selected articles

Space Tyrant: Multithreading lessons learned on SMP hardware

Graffiti Server Download Page

Librenix T-Shirts and Coffee Mugs!

MiniLesson: An introduction to Linux in ten commands

The Network Computer: An opportunity for Linux

Programming Language Tradeoffs: 3GL vs 4GL

Testing the Digital Ocean $5 Cloud Servers with an MMORPG

Download: Linux 3D Client for Starship Traders

Missing the point of the Mac Mini

VPS: Xen vs. OpenVZ

Why Programmers are not Software Engineers

Apple to Intel move no threat to Linux

Mono-culture and the .NETwork effect

Scripting: A parallel Linux backup script

Why software sucks

The life cycle of a programmer

Beneficial Computer Viruses

Space Tyrant: A multiplayer network game for Linux

How to install Ubuntu Linux on the decTOP SFF computer

Closed Source Linux Distribution Launched

Space Tyrant: A threaded game server project in C

No, RMS, Linux is not GNU/Linux

Shadow.sh: A simple directory shadowing script for Linux

Hacker Haiku

The Real Microsoft Monopoly

Linux dominates Windows

Tutorial: Introduction to Linux files

The Supreme Court is wrong on Copyright Case

Space Tyrant: A threaded C game project: First Code

The short life and hard times of a Linux virus

Apple DIY Repair

Microsoft to push unlicensed users to Linux

Linux vs. Windows: Why Linux will win

 

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Articles are owned by their authors.   © 2000-2012 Ray Yeargin