Linux IP address failure problems in Linux often use the ifconfig command to set the IP address, but after each setting is complete, the IP address will be cleared after the server is restarted. The specific reason is that the ifconfig configuration
In linux, how to change the IP address to permanent effect in the following way vi/etc/sysconfig/network-scripts/ifcfg-eth0 (eth0, the first Nic, if the second is eth1) modify ipDEVICE = eth0 as follows (if the second block is just eth1) BOOTPROTO =
Configure network connection information for CentOS
The basic network configuration includes configuring the host name, configuring the NIC, and setting the client name resolution service.
1. Configure the Host Name
To view the name of the current
Network Configuration for centos 6 and 7
As centos7 has changed with the previous release, and the network attribute has changed a lot, the network configuration before centos7 and 7 is explained here separately.
1. Related configuration filesIn
CentOS configuration of static IP addresses in VMware Bridge Mode
To solve this problem, we used the NAT mode When configuring a hadoop cluster under a virtual machine. However, there is another physical host in the LAN, we hope this physical host
Change IP permanently effective follow these steps vi/etc/sysconfig/network-scripts/ifcfg-eth0 (eth0, first Nic, eth1 if second) modify ipDEVICE = eth0 as follows (if the second block is just eth1) BOOTPROTO = staticIPADDR = 192.168.0.11 (changed to
From: http://blog.csdn.net/njchenyi/article/details/8715417
1. Configure static IP addresses:
# Vim/etc/Network/interfaces
The original content contains the following four lines:auto loiface lo inet loopback
auto eth0iface eth0 inet dhcp
The above
Command parsing:[[Email protected]~]#[] No special meaningRoot: Currently logged on user (Admin user)@ No special meaningLocalHost host name~ Represents the current location (~ home directory)# represents the current logged-on user as an
First, the basic knowledge of the network1) Classification of IP addressesClass A: 1-126 networks, 127 for the loopback address, can accommodate the host is: 2^24-2, the host bit 0 and all 1 for the network address and broadcast address range is: 1-1
Network card Configuration item in detail:Configure IP, mask, Gateway: ethx device= "eth0" The device to which this configuration is associated. Device name to be consistent with Ude content after file ifcfg- BOOTPROTO=none
1: Nic File/etc/sysconfig/network-scripts/ifcfg-eth0[[email protected] scripts]# Cat/etc/sysconfig/network-scripts/ifcfg-eth0device=eth0 # # Physical device name, Eth0 is the first NIC; e Th1 for the second NIC Hwaddr=00:0c:29:84:0c:21 # # network
Ifconfig: To view information about a network card that has already been activated to use the Ifconfig command, you must install the Net-tools program yum install net-tools-y
Eno begins with the representation of the virtual machine NIC
Edit File/etc/sysconfig/network-scripts/ifcfg-eth0 Reference: Device=eth0//device name, do not modify bootproto=static//Do not modify broadcast= 10.10.22.255//broadcast address, generally the last ipipaddr=10.10.22.145 of the network segment//IP
I copied the Linux virtual machine can not access the Internet, I use the ifconfig command query found only eth1 and lo devices, no eth0. So I did a search on Google, "VMware cloning or replicating a Linux virtual machine after eth0 can't find a
1. Use of the ifconfig command: (1) View all NIC basic information:ifconfig(2) View specific network card information:ifconfig (network card name, such as:eht0)(3) Stop the network card device service:ifconfig (NIC name, such as:eht0) down(You
Linux NIC configuration file:/etc/sysconfig/network-scripts/ifcf-xxxDevice: Which of the devices this profile applies to, this option is a required parameter and needs to be configured correctly.HWADDR: The MAC address of the corresponding device
Method One:ifconfig eth0 IP Address netmask gateway----If not set, use the default maskNote: This method is only temporarily modified to restart the network or the server will be restored.Method Two:Vi/etc/sysconfig/network-scripts/ifcfg-eth0
First, the server hardware configuration 1, view hard disk and partition condition # fdisk-l 2. View the usage of partition space You can view each partition size, used, available, percent used, mount status 1) default Unit is K # DF 2) More
DHCP Server
Lab Requirements:
The company requires a Linux host that is idle to be configured as a DHCP server to provide automatic IP address assignment services for employees in local area networks, improving the efficiency of network
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