loopback device

In Unix-like operating systems,Loop Device,LoopbackDevice,VND(Vnode disk), orLofi(Loopback FileInterface) is a pseudo-device that makes a fileAccessible as a pseudo-device. A loop device may allow some kindData elaboration during this redirection; for example, the

1. After the LVS scheduler receives a request packet whose destination address is VIP, it changes the MAC address to the MAC address of RSP and sends it to RSP through the switch (Link Layer. 2. After receiving the request from the RSP link layer, the request is sent to the IP layer. The IP layer needs to verify the target IP address of the request. Therefore, RSP needs to configure a VIP loopback device.

] ~]# partprobe partprobe notify kernel Reread partition table, let kernel recognize new partition[Email protected] ~]# cat/proc/partitionsMajor Minor #blocks name8 0 20971520 SDA8 1 204800 sda18 2 8192000 Sda28 3 4096000 Sda38 4 1 SDA48 5 2048000 Sda58 6 2048000 Sda68 7 1536000 Sda78 8 1024000 The SDA8 kernel has identified the new partition, only the partition can be formatted, mounted, and so on. [[email protected] ~]# mke2fs-t ext4/dev/sda8 format/dev/sda8 partition as EXT4 type[[emailprotec

first, related loopback address basic concept What does the loopback address of a device on a router mean? The local loopback interface (or address), also known as the loopback address (loopback addresses). This type of interfa

loopback device is special. There is only one instance* Per network namespace.*/Static void loopback_setup (struct net_device * dev){Dev-> mtu = (16*1024) + 20 + 20 + 12;Dev-> flags = IFF_LOOPBACK;Dev-> header_ops = eth_header_ops;Dev-> netdev_ops = loopback_ops;} /* Setup and register the loopback device .*/Static

During the installation of 11g, this machine encountered the need to install the loop adapter. My system is Windows 2003 Server. in the network environment of the lab, IP addresses are automatically allocated by DHCP. If Oracle finds that your machine is using DHCP, install the Microsoft loopback adapter to provide a static IP address. For details about the installation method, see: 1. Click start, and then click Control Panel ".2. If you are in t

Enable the loopback access permission for the UWP application, and enable the loopback permission for the uwp Application Recently, I encountered a requirement for UWP to call WCF in the project. Considering that UWP cannot host the WCF Service (if possible or with similar technologies, please let us know), I wrote a WPF program to host the WCF Service, then use UWP to call the service. I didn't encounter a

First, fuck Microsoft again. 1. Download DevCon (Microsoft Official link) or the attachment I packed all the lines. 2. Extract the DevCon from the official download or run the attachment I sent. 3. Open the Run window enter CMD to find the folder where DevCon is located or double-click the self-extracting package I sent (sorry, there is no map here.) ）。 4. Command line to navigate to the appropriate folder (32-bit system into the I386,64 bit system into ia64) find Devcon.exe or enter similar

From: http://blog.csdn.net/ljinddlj/article/details/5935520 The loopback interface is a virtual network interface, which has different meanings in different fields. 1.TCP/IPLoopback interface in protocol stack In TCP/IP, the loopback device is a virtual network interface implemented by software, which is not associated with any hardware.

1. To identify and manage network devices (such as routers and PCs), we usually use interfaces of these devices (including physical interfaces and logical interfaces: for example, vlan. However, although the device is not out of the network, the device cannot be managed because the interface status of the management address is down (because the physical connection is disconnected, the API Protocol cannot st

CISCO PT Simulation Experiment (15) loopback Telnet configuration for routersExperimental Purpose :Mastering the features and functions of router loopback interfaceMaster the configuration of the Loopback interface to achieve Telnet login to the routerMastering the basic configuration of RIP dynamic Routing and default routingExperimental Background : as the netw

Install Microsoft Loopback Adapter 1Locate the menu option that opens the Start menu---Control Panel---Add Hardware , as shown in.Steps to read 2If you do not have "Add Hardware" of course you can also directly, WIN7 at the beginning---run---Enter the hdwwiz.exe command to open the Run Add Hardware menu operationSteps to read 3The Add Hardware Wizard page then appears to scan the current system for hardware connectivity, which can take a few m

follows: Right-click [My Computer] and choose Properties. In the left menu of the pop-up dialog box, choose Device Manager or hdwwiz the command on the run. Right-click the computer name of the root of the device and choose Add Hardware. In the pop-up dialog box, click [Next]. Select manually select the hardware in the list and install it and click Next. Select [Network adapters] and click Next. In

Recently learned about the loopback file system for Linux. It's really interesting.The so-called loopback file system, which is different from the conventional file system, the general file system is built on the device, and it is built in the file.Regardless of the file system, it needs to be mounted before it can be used.Check out the

The XP mode is installed today, but in practice, it is found that the Virtual PC and VMWare share the network in a different way. VMware shares the network by simulating the network card, while virtual PC shares the network by binding the virtual PC emulated switch service to the existing network card. Therefore, you can share the network by adding a Microsoft loopback adapter soft Nic. Microsoft loopback

not as simple as XP, next, to lead us, step-by-step in the Win7 to open the long-awaited loopback network card. However, the general notebook in the installation will have a Microsoft Loopback Adapter installation can not find the specified file error, in this after the author finishing, teach you a foolproof method. Resolved as follows: The steps for installing the Microsoft

replaces the IPv4 broadcast address. The Multicast function in Multicast address (Multicast) IPv6 is similar to that in IPv4: as a group of interfaces, Multicast is very interested in the traffic. Unicast: An identifier for a single interface. A packet sent to a unicast address is delivered to the interface identified by that address. anycast: An identifier for a set of interfaces (typically belonging to different nodes ). A packet sent to an anycast address is delivered to one of the interface

Reference:Http://www.cnblogs.com/caoguoping100/p/3654452.htmlHttps://wiki.wireshark.org/NullLoopbackGrab the package to install the terminal terminal and enter the command.Tcpdump-i pdp_ip0-s 0-w Pdp.pcap obtained the message, found there loopback.Pdp_ip0 is 3g/4g under the network card, get the message directly loopback layer. Puzzled?Attached Wireshark analysisNull/loopback (Null)the "null" protocol is th

The PC local loopback address 127.0.0.1 is often referred to as the local loopback address (the loop back addressing), which represents the device's local virtual interface, so the default is seen as an interface that never goes down. also has a similar definition in the Windows operating system, so it is usually possible to ping this local loopback address

This type of interface is the most widely used virtual interface, which is used on almost every vro. Regular See the following usage. 1 As the management address of a vro After the system administrator completes the network planning, Loopback interface, and specify an IP address as the management address on this interface. The Administrator will Use this address to remotely log on to the vrotelnet (Telnet). The address actually starts with the na