Solved

Find out version of BIND and how to update /etc/named.conf

Posted on 2010-08-22
4
1,352 Views
Last Modified: 2013-12-28
I will need to make some modifications to our DNS server that is running a version of BIND.

Here is my sanitized uname output:

bash-2.05$ uname -a
SunOS XXXX 5.9 Generic_118558-11 sun4u sparc SUNW,UltraAX-i2

First, I want to know the version of BIND because I am considering outsourcing our DNS. In the /etc/named.conf file, here is a snippet of the relevant line that is keeping me from finding out the BIND version:

options {
        version "I have no idea";

Open in new window


I have tried the following three commands but could not find the version of BIND:

1. bash-2.05$ /usr/local/bind/etc/named -v

Result: No such file or directory. (This tells me that I am probably not running BIND 9.)

2. bash-2.05$ nslookup -q=txt -class=CHAOS version.bind. 0

Result: Get "I have no idea"

3. bash-2.05$ dig -t txt -c chaos VERSION.BIND @xxxx.xxxx.xxx

Result: Get "I have no idea"

The only thing that I can think of is to temporarily remove the "options - version" line which is not ideal. Is there any other way to find out without stopping any services?

Second, I need to modify the named.conf file to add some IPs for zone transfers. I know that when I modify a zone, I have to increment the SOA, find the BIND process number and kill it, then start it again with "/usr/local/bind/sbin/named -u kbind". Do I simply modify named.conf, save it, and then kill and start the BIND process the same way?

Thank you in advance for your help.
 
0
Comment
Question by:SSAKUSEISHA
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 4

Assisted Solution

by:aZLAn2000
aZLAn2000 earned 125 total points
ID: 33498535
type:

named -v to get version

Yes. You need to restart named to re-read the config.

Kill -HUP <processid>  - THis will make it restart and re-read the config files.

Good luck!
0
 
LVL 4

Expert Comment

by:aZLAn2000
ID: 33498546
OOpps.. didn't see your "-v " in your questions. Sorry 'bout that.

I found my version with vi as well. Just vi named and search for "version" and after a few searches it came up with the version. Chances are though that the "version" part is missing all along.

Since it SunOS you might check which version comes native with it or update it to the newest version ;)
0
 
LVL 29

Accepted Solution

by:
Jan Springer earned 125 total points
ID: 33500206
"named -v" is not good if the version that is listed first in the path is not the version that is running.

Find out by a "ps -Af |grep named" or viewing the startup script to find the correct location of named.

I don't know where SunOS puts its default installation but an install from source is, unless modified, is in /usr/local/sbin/named.
0
 

Author Comment

by:SSAKUSEISHA
ID: 33506397
Thank you everyone - looks like I am running version BIND 9.3.1. I have attached a snippet of the output.

 

bash-2.05$ ps -Af |grep named
   kbind   149     1  0   Jun 11 ?       24:28 /usr/local/bind/sbin/named -u kbind
bash-2.05$ /usr/local/bind/sbin/named -v
BIND 9.3.1
bash-2.05$

Open in new window

0

Featured Post

Why You Need a DevOps Toolchain

IT needs to deliver services with more agility and velocity. IT must roll out application features and innovations faster to keep up with customer demands, which is where a DevOps toolchain steps in. View the infographic to see why you need a DevOps toolchain.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I wrote this article to explain some important DNS concepts that should be known to avoid some typical configuration errors I often see in forums. I assume that what is described here is the typical behavior of Microsoft DNS client. I don't know …
Every server (virtual or physical) needs a console: and the console can be provided through hardware directly connected, software for remote connections, local connections, through a KVM, etc. This document explains the different types of consol…
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.

751 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question