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Faster Linux browsing with a DNS cache server

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Avoid redundant, time-consuming remote DNS name lookups when browsing on your Linux system with your own local DNS cache...
So whatís the difference?
An Caching DNS holds a small database of recent requests, or so to speak. He will keep each entry in his database for a specified amount of time (more about TTL). If the Caching DNS receives a requests for a entry currently in his database, he will respond to it instantly without contacting any other servers. If the Caching DNS is on your local computer, this will occur in 0 milliseconds.
read more...
mail this link | permapage | score:7611 | -Ray, March 29, 2011

Tutorial: Multiserver Setup with dedicated Web, Email, DNS MySQL Database Servers on Debian 6 with ISPConfig 3

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This tutorial describes the installation of an ISPConfig 3 multiserver setup with dedicated web, email, database and two DNS servers all managed trough a single ISPConfig 3 control panel. The setup described below uses five servers and can be extended easily to to a higher number of servers by just adding more servers. E.g. if you want to have two mailservers, do the setup steps from chapter 2 on both of these servers. If you want to set up more web servers, then install ISPConfig on all other web servers in expert mode except of the first one. read more...
mail this link | permapage | score:7596 | -falko, October 11, 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:7578 | -falko, February 13, 2009

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:7543 | -falko, April 10, 2006

Install PowerDNS, MySQL, Poweradmin on Debian

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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 Lenny 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:7519 | -falko, July 17, 2010

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:7517 | -falko, July 14, 2008

Dynamic DNS on Linux

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Need to connect remotely to your Linux system -- but you don't have a static IP address?
The solution is to choose your own hostname for your PC, set up a record for it with a dynamic DNS service provider, and set up your PC to check its own IP address regularly and send an update message to the dynamic DNS server when it changes. Then you can SSH to myhost.unclenatesdomain.org and be assured it will reach your PC.

Choosing which dynamic DNS provider to go with can be as confusing as picking a Web hosting provider...
read more...
mail this link | permapage | score:7427 | -Ray, July 20, 2006

MyDNSConfig 1.0: Manage DNS through a web interface

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MyDNSConfig is a free web-interface written in PHP that allows to administrate/create/delete DNS records easily. All data is stored in a MySQL database, and this MySQL database is used by the MyDNS name server to retrieve the DNS records which means: no zone files, no server reloads.

The software lets you manage the following record types:
  • A records
  • ALIAS records
  • CNAME records
  • HINFO records
  • MX records
  • NS records
  • PTR records (for reverse lookups)
  • RP records
  • SRV records
  • TXT records (and therefore also SPF records)
MyDNSConfig has just been initially released in version 1.0.0 under a BSD license and is maintained by the ISPConfig (http://www.ispconfig.org) development team.

The release of the software is accompanied by a HowtoForge tutorial that describes how to install and configure the MyDNS nameserver and MyDNSConfig: http://www.howtoforge.com/mydns_name_server

MyDNSConfig can be downloaded from http://www.mydnsconfig.org. read more...
mail this link | permapage | score:7358 | -falko, February 6, 2006

Set up dynamic DNS

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How to set up Bind on your Linux system...
In this tip Iíll look at configuring the BIND side of a dynamic DNS service, and in a following tip Iíll configure the DHCP side and put it all together. The configuration here is used on a CentOS 5.3 system, but with some potential path changes, it should work on any Linux distribution.
read more...
permapage | score:7309 | -Ray, July 16, 2009

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:7208 | -Alex, July 27, 2000 (Updated: June 23, 2003)

djbdns: An alternative to BIND

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This article is an excerpt from the book Linux Network Administrator's Guide.
Those who have been concerned with the number of security vulnerabilities found in the BIND server through the years, or who prefer an easier DNS solution, may wish to investigate an alternative, djbdns. This software, written from scratch by D.J. Bernstein, provides a much more robust, simplified and secure framework for DNS. djbdns is easy to install and configure, and is much less complex than BIND, essentially the same functionality.
read more...
mail this link | permapage | score:7192 | -Ray, April 8, 2005

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:7183 | -falko, May 8, 2007

Install PowerDNS, MySQL and Poweradmin on Ubuntu 9.10

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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 an Ubuntu 9.10 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:7091 | -falko, April 16, 2010

DNS Overview

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The present and future DNS in three pages...
Created in the 1980s when the Internet was still young but overrunning its original system for translating host names into IP addresses, DNS is one of the foundation technologies that made the worldwide Internet (and the World Wide Web) possible. Yet this did not all happen smoothly, and DNS technology has been periodically refreshed and refined. Though it's still possible to describe DNS in simple terms, the underlying details are by now quite sublime. This article explores the supposed and true definitions of DNS (both the system and the protocol) and shows some of the tension between these two definitions through the lens of the Internet protocol development philosophy.
read more...
mail this link | permapage | score:7063 | -Ray, May 30, 2007

MyDNS: A database DNS server

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An interesting alternative to BIND...
MyDNS is a domain name server designed to work with an external SQL database, specifically MySQL or PostgreSQL. The most recent version of MyDNS was released last month, but I've been using it for quite some time for my own domains, and have set it up on other servers for a few other folks as well. It's reliable, stable, and easy to administer.
read more...
permapage | score:7057 | -Ray, February 26, 2006

Determine DNS nameserver versions remotely with fingeprinting tool

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By hiding your DNS server version number you can improve server security. fpdns is a program that remotely determines DNS server versions. It does this by sending a series of borderline DNS queries which are compared against a table of responses and server versions. (just like nmap command's remote OS detection facility).

A nameserver basically responds to a query. Interoperability is an obvious requirement here. The standard protocol behavior of different DNS implementations is expected to be the same. read more...
mail this link | permapage | score:6927 | -nixcraft, December 21, 2007

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:6909 | -nixcraft, August 4, 2008

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:6877 | -Ray, October 4, 2007

Linux: How to set up a DNS server

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Build and chroot a name server on Red Hat flavors of Linux...
Letís say that we own the domain example.com and have 4 servers we plan to use for that domain; a webserver at 192.168.1.1, our master nameserver at 192.168.1.2, our slave nameserver at 192.168.1.3, and an email server at 192.168.1.4. It is entirely possible (and quite common) to have one server act as a webserver, email server, and a nameserver. However, for this example weíll separate them to avoid confusion.
read more...
mail this link | permapage | score:6840 | -Ray, December 4, 2007

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:6817 | -falko, June 21, 2010
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Articles are owned by their authors.   © 2000-2012 Ray Yeargin