Linux下Virbr0网络配置实践(linuxvirbr0)
Linux / Virbr0 Network Configuration Practice
Virtual networks are widely used in the service field. Virbr0 is a virtual switch provided by libvirt to provide a virtual network environment. It is easy to set up and use virtual machines in a virtual network. This article will introduce how to set up a virtual network based on virbr0 in Linux.
First, let s make sure that virbr0 is installed in the current Linux system. Open the terminal and execute the following command to view the network device list, where virbr0 usually appears.
`shell
ip link
If virbr0 is not installed, we don"t need to be discouraged. We can use the following command to install it.
```shellapt-get install bridged-utils
Then configure virbr0
`shell
#1.Configure IP
ifconfig virbr0 192.168.137.1
#2.Enable netmask
ifconfig virbr0 netmask 255.255.255.0
#3.Enable broadcast address
ifconfig virbr0 broadcast 192.168.137.255
#4.Set up default route
route add default gw 192.168.137.254
#5.Make the new network available
echo 1 /proc/sys/net/ipv4/ip_forward
After the above steps, a new virbr0 virtual network card has been configured, and the virbr0 virtual network card is also assigned with an IP address. At this time, using this IP address, you can ping the outside network and connect to the Internet.
Finally, you can use a DHCP server to set up a DHCP server in the virbr0 virtual network. Add the following command to the configuration file of the DHCP server:
# Use the virbr0 virtual network
subnet 192.168.137.0 netmask 255.255.255.0 {
range 192.168.137.50 192.168.137.99;
option routers 192.168.137.254;
option domain-name-servers 114.114.114.114;
}
With this configuration, the machine inside the virtual network can automatically obtain the IP through dhcp.
After completing these steps, the virbr0 virtual network in Linux is configured. After a successful configuration, we can use the virbr0 virtual network to deploy services and improve the speed of service development.
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数据库远程运维 Linux下Virbr0网络配置实践(linuxvirbr0)
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