Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
Whenever I create a new DNS zone file in BIND 9, some of the subdomains resolve very quickly, whereas others (particularly the root-level domain) do not.
For example, when setting up a mail server (on the same machine), "pop.example.com" and "smtp.example.com" will start resolving within a day or two, whereas "example.com" won't resolve for a week or two... even if all domains reference the same machine.
Here's an example zone file:
example.com. IN SOA localhost. root.localhost (
2 ; serial
28800 ; refresh
7200 ; retry
604800 ; expire
86400 ; ttl
IN NS localhost.
IN MX 2 smtp.example.com
smtp IN A 188.8.131.52
pop IN A 184.108.40.206
example.com. IN A 220.127.116.11
What could be going on here? Does this have to do with higher-level DNS processing, or is there something different I should be doing in my configuration?
My server is Redhat 9 (updated via the Fedora Legacy project) on an Athlon i686.