Parse OPENVZ configuration knowledge in Linux

Many people are learning Linux. We can see that Linux is becoming more and more important. Do you know about Linux? Are you an application of Linux? This article describes how to configure OPENVZ in Linux.

1. Download the Installation File

According to your kernel version here: http://openvz.org/download/kernel/ download.

# Rpm-ihv vzkernel-name *. rpm

2. Modify the grub. conf file

 
 

  
  
title OpenVZ (2.6.8-022stab029.1) root (hd0,0) kernel   
  
  
/vmlinuz-2.6.8-022stab029.1 ro root=/dev/sda5 initrd /initrd-2.6.8-022stab029.1.img 
 
 

3. Modify the etc/sysyctl. conf file:

 
 

  
  
/etc/sysctl.conf:  
  
  
# On Hardware Node we generally need  
  
  
# packet forwarding enabled and proxy arp disabled  
  
  
net.ipv4.ip_forward = 1 
  
  
net.ipv4.conf.default.proxy_arp = 0 
  
  
# Enables source route verification  
  
  
net.ipv4.conf.all.rp_filter = 1 
  
  
# Enables the magic-sysrq  
  
  
key kernel.sysrq = 1 
  
  
#net.ipv4.tcp_ecn = 0 
  
  
# we do not want all our interfaces to send redirects  
  
  
net.ipv4.conf.default.send_redirects = 1 
 
 

4. If you have run iptables firewall and SELinux, disable and disable it first.

Edit/etc/sysconfig/selinux:

SELINUX = disabled.

Disable the iptables firewall.

5. Install OpenVZ Management Software

Depending on your version here: http://openvz.org/download/utils/ download.

# Rpm-Uhv vzctl *. rpm vzquota *. rpm vzpkg *. rpm

6. Restart VZ

#/Etc/init. d/vz start

7. Install the Template

 
 

  
  
# rpm –ihv vztmpl-fedora-core-3-1.0-2.noarch.rpm  
  
  
# vzpkgcache  
  
  
Creating cache for fedora-core-3 OS template  
  
  
Setting up install process  
  
  
Packing cache file fedora-core-3.tar.gz ...  
  
  
Cache file fedora-core-3.tar.gz [130M] created. 
 
 

8. Create a non-zero ID for the Virtual Server

 
 

  
  
# vzctl create 101  
  
  
Creating VPS private area: /vz/private/101  
  
  
VPS is mounted  
  
  
Postcreate action done  
  
  
VPS is unmounted  
  
  
VPS private area was created 
 
 

9. Set the parameter to zero.

 
 

  
  
# vzctl set 101 --hostname test101.my.org --save  
  
  
Hostname for VPS set: test101.my.org  
  
  
Saved parameters for VPS 101  
  
  
# vzctl set 101 --ipadd 10.0.186.1 --save  
  
  
Adding IP address(es): 10.0.186.1  
  
  
Saved parameters for VPS 101  
  
  
# vzctl set 101 --nameserver 192.168.1.165 --save  
  
  
File resolv.conf was modified  
  
  
Saved parameters for VPS 101 
 
 

10. Set the root user password

# Vzctl set 101 -- userpasswd root: test

11. Start the SSH daemon

# Vzctl exec 101 service sshd start

12. Start VPS

 
 

  
  
# vzctl start 101  
  
  
Starting VPS ...  
  
  
VPS is mounted  
  
  
Adding IP address(es): 10.0.186.101 Hostname for VPS 101 set: test.my.org  
  
  
VPS start in progress... 
 
 

13. Load the Firewall

The firewall that was previously disabled must be loaded for security reasons.

 
 

  
  
# vzctl set 101 --iptables iptable_filter   
  
  
--iptables ipt_length --iptables ipt_limit   
  
  
--iptables iptable_mangle --iptables ipt_REJECT --save 
 
 

We hope OPENVZ configuration in Linux will be helpful to you.

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