UbuntuHelp:UbuntuLTSP/HostnameFromDNS

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https://help.ubuntu.com/community/UbuntuLTSP/HostnameFromDNS

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This page is specific to Ubuntu versions 9.10

If you find this information applicable to additional versions/releases, please edit this page and modify this header to reflect that. Please also include any necessary modifications for this information to apply to the additional versions.

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Sometimes it's interesting to have the thin clients hostname coming from DNS, through PTR (reverse) records. This script performs a DNS query with the thin client IP address and in case of a good answer, it sets the thin client hostname accordingly. http://hackers.propus.com.br/~marlon/ltsp/dns2hostname.py Important: do not use this script if you don't have PTR records for all your DHCP range. How to install the script into an i386 image:

DIR='/opt/ltsp/i386'
mount -t proc proc $DIR/proc
mount -t devpts devpts $DIR/dev/pts
chroot $DIR bash

# Under the chroot

cd /etc/init.d
wget -c http://hackers.propus.com.br/~marlon/ltsp/dns2hostname.py
chmod +x dns2hostname.py
apt-get install python-dnspython # if not installed
cd /etc/rcS.d
ln -s ../init.d/dns2hostname.py S33dns2hostname.py
exit

umount $DIR/dev/pts
umount $DIR/proc

ltsp-update-image --arch i386

Reboot your thin clients and test it. Good luck.

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