Source:Http://topic.csdn.net/u/20100201/07/DB06FBCD-B02E-4D75-B068-50982A77124B.html
IP address and subnet maskWe all know that IP addresses are composed of four digits. Here, let's take a look at three common types of IP addresses.Class a ip segments 0.0.0.0 to 127.255.255
BroadcastAddress (broadcast address) is an address used to send messages to all workstations in the network at the same time. In a network that uses the TCPIP protocol, the IP address of the host ID segment hostID of all 1 is the broadcast address, broadcast... broadcast
Every week changes between the lab and the dormitory. The lab's damn public router locks the IP address. The Dynamic IP address is always an incorrect address, and can only be manually modified once. Then I was so lazy and didn't want to open the graphical interface to perfo
1. add a single IP address 1, enter/etc/sysconfig/network-scripts/to create a file ifcfg-eth0: *, * is the number, multiple IP addresses increase in turn to 0 as an example, create file ifcfg-eth0: 0 # cd/etc/sysconfig/network-scripts/# viifcfg-eth0: 0 nb
1. add a single IP address1. enter/etc/sysconfig/network-script
How to add a single IP address and multiple IP addresses in CentOS
1. Add a single IP Address1. Enter/etc/sysconfig/network-scripts/to create a file ifcfg-eth0: *, * is the number, multiple IP increases in turnTake 0 as an example to create a file ifcfg-eth0: 0
#cd/etc/sysco
Division of IP address CIDR blocks
IP address and subnet maskWe all know that IP addresses are composed of four digits. Here, let's take a look at three common types of IP addresses.Class a ip
Tip: http://www.pcworld.com.cn/how_to_use/1/2006/0707/6804.shtml
Introduction: in Linux, you sometimes need to bind multiple IP addresses to a network card. This article describes the RedHat series (RedHat, Fedora Core, centos) and a method that is widely used in other Linux systems such as Gentoo.
In Linux, you sometimes need to bind multiple IP addresses to a network card. This article describes the RedHa
address,
NETMASK is the subnet mask,
ONBOOT indicates automatic startup when the system starts.
If you need to bind another IP address,
You only need to add the file name and the eth0: x in the DEVICE in the file.
LINUX supports up to 255 IP aliases
2. it is widely used to
integrated use of encryption, password, VPN connection or other identity authentication mechanism, the establishment of a multi-level strict security system, which can effectively reduce the IP address conflict brought about by the security threat. To prevent IP address
1.1 IP Address authentication Multi-IP configuration
Add an IP to a network card:
(1) Enter the/etc/sysconfig/network-scripts/directory, cd/etc/sysconfig/network-scripts/
(2) Copy an IP template to the directory, where the Ifcfg-eth0 as the template CP Ifcfg-eth0 ifcfg-et
Article title: binding multiple IP addresses to an NIC in Linux to share a single IP address with multiple NICs. Linux is a technology channel of the IT lab in China. Some basic categories, such as desktop applications, Linux system management, kernel research, embedded systems, and open-source systems, sometimes need to bind multiple
Bind multiple IP addresses to a single Nic In CentOS and share one IP address with multiple NICs
In centos, you sometimes need to bind multiple IP addresses to one network card. This article describes the Redhat series (redhat, Fedora Core, Centos) and a method that is widely used in other Linux systems such as Gentoo.
Quickly fix the DHCPD. conf file bound to the MAC address and IP address of DHCP.
In Linux, to bind a dhcp mac address to an IP address, you need to bind it to/etc/DHCPD. specify an IP
= config. get ("school", "DNSServer1") DNSServer2 = config. get ("school", "DNSServer2") DNSServer = [DNSServer1, DNSServer2] print 'The following information is set in the configuration file. Please check: 'printprint 'IP address :', IPAddressprint 'sub-off mask: ', SubnetMaskprint 'default Gateway:', gatewayprint' primary DNS Service Server: ', DNSServer1print
In Linux, you sometimes need to bind multiple IP addresses to a network card. This article describes the RedHat series (RedHat, Fedora Core, centos) and a method that is widely used in other Linux systems such as Gentoo.
1. How to bind multiple IP addresses to a single Nic In the RedHat Series
Suppose the NIC that needs to bind multiple IP addresses is eth0
To do this, log in to SSH:Vi/etc/sysconfig/network-scripts/ifcfg-eth0:0The second IP is aVi/etc/sysconfig/network-scripts/ifcfg-eth0:1A third IP is theIfcfg-eth0:2 (from this analogy)Device=eth0:0 NIC device name Onboot=YES random start Bootproto= static statically assigned ipipaddr=*.* . * * the IP address to add ne
Use netsh commands in Windows to modify IP address gateways and DNS
The following are two usage instructions on netsh. Copy them to the text document and change the suffix. txt to. CMD and double-click it to execute:
The first is to use the netsh command to modify the IP address, subnet
incorrectly, but it is normal to automatically obtain the IP address and access the internet, it indicates that the preceding settings are correct. The host name can be pinged. Our network was built using VPN, and many office sites used a unified office platform. At that time, this problem also occurred during VPN set
network segment as the target host pc2. therefore, host PC1 sends an ARP request broadcast packet to the MAC address of 192.168.20.20. In this case, the router identifies the destination address of the report as another subnet (note that the IP address of the router interface is configured with a 28-bit
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