Convention: The first network card for the external network, the second network card for the intranet (no external network of the machine to be configured on the second network card)Description: CentOS 6.5 is installed by default and does not automatically open the network connection!1. Network card IP and other configuration filesVim/etc/sysconfig/network-scripts/ifcfg-eth0 #编辑配置文件, add modify the following content------------------------------------
corresponds to a configuration file (ifcfg-eth0, ifcfg-eth0: 1, ifcfg-eth0: 2 ....), each configuration file corresponds to a device (eth0, eth0: 0, eth0: 1 ......).
Here, the IP addresses are 10.63.198.234 and 10.63.198.249, which are explained here:
Device = eth0Bootproto = noneHwaddr = 00: 11: D8: C5: 7c: 8fOnboot = YesDhcp_hostname = btazuoIpaddr = 10.63.198.234Netmask = 255.255.255.0Gateway = 10.63.198.254Type = Ethernet
Device indicates a dev
How to modify IP address, gateway, and DNS in Linux Command Line
This article will briefly describe how to use Linux Command lines to modify IP addresses, gateways, and DNS.
Change the IP address of eth0 to 102.160.1.
Ifconfig eth0 102.160.1 netmask 255.255.255.0
Change gateway
This article introduces, in Linux set the IP address, gateway, DNS method, have the need for friends to make a reference bar.There are two ways to set up a Linux network:First: Use the command to modify (direct immediate effect)Copy Codecode example:IP and netmask:# ifconfig eth0 192.168.30.197 netmask 255.255.255.0Gateway# route Add default GW 192.168.30.1 eth0Dns:# VI Etc/resolv.confNameServer 202.131.80.
Basic idea: enable IP forwarding and set iptables rules. 2. 1. enable IP forwarding in either of the following ways: echo quot; 1 quot; gt;/proc/sys/net/ipv4/ip_forward fixed: modify/etc/sysctl. conf to cancel the annotation of this line: net. ipv4.ip _ forward1 and then immediately generate... basic idea: enable IP
_iot (_iots (char), ifnamsiz,_iots (int), 1,0,0)2.ioctl functions (function in the network)Regarding this network related request, is the IOCTL in here the function and each parameter function ... can refer to this page, the explanation is very detailed:http://www.iteye.com/topic/309442The 2 IOCTL control functions in this example: It's been explained very clearly.3. With regard to the relationship between Socketaddr_in and socketaddr, a specific definition is posted below:struct SOCKADDR_IN{sh
The following small series for everyone to bring an article WinForm C # get the MAC address, IP address, subnet mask, the default gateway instance. Small series feel very good, now share to everyone, also for everyone to make a reference. Let's take a look at it with a little knitting.
1. Add an assembly
2. Introduce namespaces
Using System.Management;
3. Methods
ManagementClass mc = new ManagementC
Modify Host name : "Change inside HOSTNAME can"
Vim/etc/sysconfig/network
Nic Eth0 IP modified to 102.168.0.1
Ifconfig eth0 102.168.0.1 netmask 255.255.255.0
Gateway modified to 102.168.0.254
Route add default GW 102.168.0.254
Linux command line modify DNS
echo "NameServer 202.202.202.20" >>/etc/resolv.conf
Can be modified with the VIM command, multip
JS verification IP address, subnet mask, Gateway and MAC Method, jsmac
This article describes how to verify the IP address, subnet mask, gateway, and MAC in JS. Share it with you for your reference. The details are as follows:
I hope this article will help you design javascript programs.
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View CurrentIP:
Ifconfig
Use the command line to Obtain Dynamic Information in UbuntuIP
Dhclient eth0
/Etc/Network/interfacesConfiguration File
1. Use commands to set UbuntuIPAddress
1. Set the NICEth0IP address and subnet mask
Sudo ifconfig eth0 192.168.2.1Netmask 255.255.255.0
2. Set the
Win7 System IP address and gateway address how to set
The specific methods are as follows:
1, in the lower right corner of the computer desktop click on the Internet connection icon;
2, after the point open, see a Connected Status menu, click on the inside "Open Network and Sharing Center";
3, after entering the page, on the left to find "Change adapter settings";
4,
Tags: Disable conf mct color serve static NIC and SDN1, first stop the desktop version of the NetworkManager, this thing is very difficult to use, and some settings need to restart.sudo systemctl Stop Networkmanager.service sudo systemctl disable Networkmanager.service2, set the MAC address in the Help document should look for this keyword: hardware address, set up in two ways, temporary and permanent.
Temporary, direct use of the command line, restart after the failuresudo ifconfig eth
Problem: The first two days Centos7.5 virtual machine, the next day after the restart using Xshell found unable to connect the virtual machine, detected that the virtual machines can not ping 192.168.1.1, Unable to ping through 192.168.1.118 (client) and www.baidu.comWorkaround:These two days through the test found Systemctl restart network invalid, reload the NIC/etc/init.d/network Reload failedAfter a search attempt to find 45021963, this situation is similar to mine, and then try to fixThe fi
With a virtual machine installed a centos7.0 to play, the installation interface than the original 5.x has undergone a great change, but the process is to get through the small difference, it is not recorded. This time the installation of a pure environment, of course, no desktop, no network connection, here to record the configuration of the network process:1, the virtual device uses the way of bridging, directly connected to the physical network2, cd/etc/sysconfig/network-scripts/#进入网络配置文件目录3,
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