Installing TinyDNS on CentOS 5.5

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#centos #system #command #service #gcc #server

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本文档详细介绍了TinyDNS的安装及配置流程，包括所需软件环境的搭建、系统用户设置等关键步骤，并提供了启动和验证服务运行状态的方法。

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Requirements of TinyDNS

Copied with permission from the author. Original site is at http://www.djbdnsrocks.org

1) At least 2 unused IP addresses. 1 is usually fine.
2) Daemontools - This was installed if you did my qmail install. If not, please install that step!
3) UCSPI-TCP - This was also installed if you did my qmail install. If not, please install that step too!
4) You will want ports 22 (SSH) and 53 (DNS) open. If you don't want anyone outside of your network using your DNS server (Personally, I don't pass this port either) don't forward port 53.

That is about it. When all those requirements have been met, You can now continue.

Installing TinyDNS

The first step is to install the daemon-tools:

# cd /opt

# wget http://cr.yp.to/daemontools/daemontools-0.76.tar.gz

# gunzip daemontools-0.76.tar

# tar -xpf daemontools-0.76.tar

# rm -f daemontools-0.76.tar

# cd admin/daemontools-0.76

# vi src/conf-cc

Append the following line at the end of the gcc line: -include /usr/include/errno.h

# ./package/install

One other package we need to prepare for djbdns to be functional is ucspi:

# cd /opt

# wget http://cr.yp.to/ucspi-tcp/ucspi-tcp-0.88.tar.gz

# gunzip ucspi-tcp-0.88.tar

# tar -xf ucspi-tcp-0.88.tar

# cd ucspi-tcp-0.88

# vi src/conf-cc

Append the following line at the end of the gcc line: -include /usr/include/errno.h

# make

# make setup check

The next step is the document publication:

# cd /opt

# wget http://cr.yp.to/djbdns/doc.tar.gz

Next we will unzip docs under /doc :

# gunzip < doc.tar.gz | (cd /; tar -xf -)

Use the following script to merge in system docs:

#!/bin/sh

for i in packages commands cfunctions fileformats

sort -f /dev/null `find /doc/merge -name $i.html` > /doc/$i.new

mv /doc/$i.new /doc/$i.html

done

Save script into a file: script.sh

# chmod +x script.sh

# ./script.sh

# cd /opt

# wget http://cr.yp.to/djbdns/djbdns-1.05.tar.gz

# gunzip djbdns-1.05.tar

# tar -xf djbdns-1.05.tar

# cd djbdns-1.05

# vi src/conf-cc

Append the following line at the end of the gcc line: -include /usr/include/errno.h

# make

# make setup check

All compiling gets done.

The next step is the dns server configuration.

Configuring TinyDNS

We need two system user accounts:

#groupadd -g 200 nofiles
#useradd -g nofiles -u 201 -d /var/dnscache -c "tinydns" -s /sbin/nologin tinydns
#useradd -g nofiles -u 202 -d /var/dnscache -c "tinydns" -s /sbin/nologin tinylog
#tinydns-conf tinydns tinylog /var/tinydns <listened IP>

Starting TinyDNS

Now start the service with the following command:
#ln -sf /var/tinydns /service

You can verify it is running by typing:
#svstat /service/tinydns

Configuring TinyDNS

Once again, we need two system user accounts:

#useradd -g nofiles -u 203 -d /var/dnscache -c "axfrdns" -s /sbin/nologin axfrdns
#useradd -g nofiles -u 204 -d /var/dnscache -c "axfrdns" -s /sbin/nologin axfrlog
#axfrdns-conf axfrdns axfrlog /var/axfrdns /var/tinydns <listened IP>

Starting axfrDNS

Now start the service with the following command:

#ln -sf /var/axfrdns /service

You can verify it is running by typing:
#svstat /service/axfrdns

Stop TinyDNS & axfrDNS

svc -d /service/tinydns

svc -d /service/axfrdns

Start TinyDNS & axfrDNS

svc -u /service/tinydns

svc -u /service/axfrdns