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Tag: OpenVZ command

OpenVZ commands and its Usages.

What is OpenVZ?

OpenVZ is an operating system-level virtualization technology based on the Linux operating system.OpenVZ allows a physical server to run multiple isolated operating systems called virtual private servers.

What are OpenVZ useful commands?

Command to list the running VPS list

# vzlist

Example:

# vzlist
CTID NPROC STATUS IP_ADDR HOSTNAME
106 104 running xx.xx.xx.xx server1.test.com
107 46 running xx.xx.xx.xx server2.test.com
108 83 running xx.xx.xx.xx server3.test.com

Command to list running and stopped VPSs in a node

# vzlist -a

Example:

# vzlist -a
CTID NPROC STATUS IP_ADDR HOSTNAME
106 104 running xx.xx.xx.xx server1.test1.com
107 46 running xx.xx.xx.xx server2.test2.com
109 86 running xx.xx.xx.xx server4.test4.com
110 – stopped xx.xx.xx.xx server5.test5.com

To start VPS

# vzctl start CTID

Example:

# vzctl start 110

To shut down VPS

# vzctl stop CTID

Example:

# vzctl stop CTID

To view the status of a VPS

# vzctl status CTID

Example:

 # vzctl status 110

To enter a VPS

# vzctl enter CTID

Example:

# vzctl enter 106
Entered into CT 106

Set hostname for a Server

# vzctl set CTID –hostname New_hostname –save

Add new IP to VPS

# vzctl set CTID –ipadd xx.xx.xx.xx –save

Delete IP from VPS

# vzctl set CTID –ipdel xx.xx.xx.xx –save

Reset the root password of a VPS

# vzctl set CTID –userpassword root:new_password –save

To add NameServer IPs to VPS

# vzctl set CTID –nameserver xx.xx.xx.xx –save

Delete a container

# vzctl destroy CTID

Suspending a container

# vzctl suspend CTID

Conclusion

Still confused how OpenVZ commands works? Contact Ideastack now.

Frequently Asked Questions

Q1. How do I use OpenVZ?

Import the GPG signing key and add the OpenVZ repository. Install vzquota, ploop, the OpenVZ kernel, and command-line tools. Install vzquota, ploop, the OpenVZ kernel, and the command-line tools. Restart the computer to enable the vzkernel after the packages have been installed.

Q2. Is OpenVZ a container?

For Linux, OpenVZ uses container-based virtualization. OpenVZ produces multiple safe, separated Linux containers (also known as VEs or VPSs) on a single physical server, allowing for more efficient server utilization and preventing application conflicts.

Q3. What are the 3 types of virtualization?

The three main types of server virtualization are full-virtualization, para-virtualization, and OS-level virtualization.