空中精靈．SkyElf

After clone a CentOS VM, there are network & hostname need to be update.

Update hostname:

1. /etc/hosts
2. /etc/sysconfig/network
3. # hostname <name>

Update NIC:

1. /etc/udev/rules.d/70-persistent-net.rules: delete old NIC information
2. /etc/sysconfig/network-scripts/ifcfg-xxx: delete UUID line and update HWADDR
3. # start_udev
4. #uuidgen >> /etc/sysconfig/network-scripts/ifcfg-xxx
5. /etc/sysconfig/network-scripts/ifcfg-xxx: update UUID by add "UUID="
6. # service network restart

Reference:

http://www.ichiayi.com/wiki/tech/linux_hostname

http://linuxtoolkit.blogspot.tw/2012/10/updating-udev-configuration-on-centos.html