OpenVz commands

Following are some important commands which are normally used while working on a Hardware Node.

1) vzlist -a : Shows list of all the VPS’s hosted on the Node.

2) vzctl start VPS_ID: To start the VPS.

3) vzctl stop VPS_ID : To stop (Shut Down) the VPS

4) vzctl status VPS_ID : To view the status of the particular VPS

5) vzctl stop VPS_ID –fast : to stop the VPS quickly and forcefully

6) vzctl enter VPS_ID : To enter in a particular VPS

Configuration Commands :

1) vzctl set VPS_ID –hostname vps.domain.com –save: To set the Hostname of a VPS.

2) vzctl set VPS_ID –ipadd 1.2.3.4 –save : To add a new IP to the hosting VPS.

3) vzctl set VPS_ID –ipdel 1.2.3.4 –save : To delete the IP from VPS.

4) vzctl set VPS_ID –userpasswd root:new_password –save : to reset root password of a VPS.

5) vzctl set VPS_ID –nameserver 1.2.3.4 –save : To add the nameserver IP’s to the VPS.

6) vzctl exec VPS_ID command : To run any command on a VPS from Node.

7) vzyum VPS_ID install package_name : To install any package/Software on a VPS from Node.
Here VPS_ID refers to the ID of the Particular VPS.

 8)vzctl destroy VPS_ID-To destroy particular vps

 9)vzcalc -v VPS_ID-To show resources used by a VPS

 10)vzcpucheck-To check CPU usage by OpenVZ

 11)vzcpucheck -v-To get CPU usage per VPS

 12)vzctl exec 103 df-to Execute commands inside particular vps container.

  

Monitoring Commands

To determine the top 5 load taking VPS in a Hardware node

vzlist -o veid,laverage|sort -nrk 2|head -5

To determine the top memory consuming process in the Hardware node

top -c (Press shift +m)

To determine the top memory cpu consuming process in the Hardware node

top -c (Press shift +p)