What to change after cloning a Linux server?
12,334
Solution 1
- 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...
Solution 2
sys-unconfig (in RHEL) will do it all for you
Solution 3
1- Change root password for better security ?
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Author by
pQd
Updated on September 17, 2022Comments
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pQd almost 2 years
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?
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Razique almost 15 yearsbetter answer than mine though :)