To change a VE’s IP address, you can ssh into the server, you
may either edit /etc/sysconfig/vz-scripts/$VEID.conf, or you may run
the following two commands (we’ll use VE 102 with an IP of 1.2.3.4 as
an example):
vzctl set 102 —ipdel 1.2.3.4 —save
vzctl set 102 —ipadd 2.3.4.5 —save