Take the 2-minute tour ×
Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Let's say I'm cloning a virtual machine containing a Linux server.

What would you advice to change in the clone? I know - it's kind of vague and depends on what services ware installed on linux but maybe you can throw some ideas?

Right now I change:

  • MAC addresses of virtual interfaces [in fact VMware does it for me]
  • re-generate SSH certificates [including host certificates - rm /etc/ssh/ssh_host*; dpkg-reconfigure openssh-server in the Debian world]
  • change the hostname

What more?

share|improve this question

3 Answers 3

up vote 8 down vote accepted
  • root password change is implied with the "ssh certificates change", I guess
  • other certificates: Mail TLS/SSL, Webserver (Apache?) SSL, known-hosts ssh files, other authentification information (Backups? cron-jobs? fetchmail? FTP and ftpd? special repositories (Debian)?
  • ip address and routing information (well, depends on the location of the vm, sounds like you just cloned a vm which stays at the same Host-system so it might not be relevant here)
  • monitoring: snmpd credentials, maybe automatic data-gathering from other systems?
  • add/remove users (and/or their passwords/home-dirs/...)
  • Backup procedure
  • documentation ;)

You also might want to set on other systems: reverse-dns entries, dns/static routes, update firewall, update central monitoring/syslog...

share|improve this answer
    
better answer than mine though :) –  Razique Sep 8 '09 at 15:32
    
thank you! :) –  brengo Sep 8 '09 at 15:37

sys-unconfig (in RHEL) will do it all for you

share|improve this answer
    
Never seen that command. I'll have to try it. –  ewwhite Nov 23 '12 at 12:34

1- Change root password for better security ?

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.