Changing host name or IP address for slave machines

Host name

DHCP

1. log into k1boot

   ssh k1boot 

2. Open the setting file

   cd /etc/dhcp/
   sudo emacs dhcpd.conf 

3. 該当ホスト名がある2ヶ所を書き換える。

   host k1xxx {
        hardware ethernet xx:xx:xx:xx:xx:xx;
        fixed-address 192.168.10.xxx
       } 

4. Restart dhcp

   sudo /etc/init.d/dhcpd restart 

Dolphin

1. log into k1dc0

   ssh k1dc0 

2. dishost.conf の該当ホスト名がある2ヶ所を書き換える。

   sudo emacs /etc/dis/dishosts.conf 

3. cluster.conf の該当ホスト名がある4ヶ所を書き換える。

   sudo emacs /etc/dis/cluster.conf

DNS

1. log into k1gate

   $ssh k1gate 

2. Be a superuser

   $su 

3. Change 2 database filess in /var/named/chroot/var/named. One each.

   #cd /var/named/chroot/var/named
   #emacs 10.68.10.in-addr.arpa.db
   #emacs kagra.icrr.u-tokyo.ac.jp.db

4. Restart the service

   #/etc/init.d/named restart

Restart the RT machine

1. Restart the machine

   $ssh k1xxx
   $sudo reboot

Restart Networkmgr

1. Log into k1dc0

   $ssh k1dc0 

2. Check the process number (###) of network manager, kill it and restart the survice

   ps -ef | grep networkmgr
   $kill ###
   $sudo /opt/DIS/sbin/dis_networkmgr

Others

Modify /diskless/root/etc/rtsystab on k1boot if necessary.

Changing host name for boot PC

1. Modify host name in /etc/conf.d/hostname on boot PC.
2. Modify host name in /etc/hosts on boot PC.
3. Modify IP address in dhcpd.conf
4. Modify IP address in /diskless/pxelinx.cfg/default
5. Modify host name for the remote computer in /diskless/root/etc/hosts on boot PC.
6. Modify host name for the remote computer in /diskless/root/etc/fstab on boot PC.
7. Reboot the master machine.
8. Modify host name in /etc/hosts on k1dc0, k1nds0, k1nds1, k1fw0, k1fw1.
9. Modify host name in /etc/fstab on k1dc0, k1nds0, k1nds1, k1fw0, k1fw1.
10. Reboot k1dc0, k1nds0, k1nds1, k1fw0, k1fw1.
11. Reboot slave computers.
12. Modify host name in /etc/hosts on workstations.
13. Modify host name in /etc/fstab on workstations.
14. Restart the network service by doing "sudo /etc/init.d/networking restart" on workstations.