wide area network protocols

Batch Test local area network host online scripts Because there are many hosts and many VLANs in the LAN, you can always know the number of online hosts and write scripts to check the online hosts. The result is that the host is displayed in green online and the host is displayed in red offline. Usage:./ping IP segment for example:./ping 192.168.0#! /Bin/bashNETWORK = $ 1for HOST in $ (seq 1 254) do ping

On a LAN, network programming IP related issues 1. How to search the computer on the local area network? 2. How to obtain the physical address of its network card through the IP address of a computer? For example, my computer is a, there is another computer on the LAN for B, how to get B's

Failure phenomenon: An enterprise intranet, all computers through the switch and proxy server Internet, one day, all computers in the local area network can not be on the network, and the LAN all computers can not access each other. Fault analysis and elimination: According to the phenomenon of failure analysis. This failure could be caused by a problem with the

In Windows XP, right-click Network Places select Properties, open the Networking window, double-click the Local Area Connection icon, pop up the Local Area Connection Status dialog box, click the Properties button, open the Local Area Connection Properties dialog box, and File and Printer Sharing on Microsoft Networks

Facing the local area network into hundred computers, one by one to detect is obviously not a good way. In fact, we just use the basic principle of ARP virus: To send fake ARP spoofing broadcast, poisoning the computer itself disguised as a gateway characteristics, can quickly lock poisoned computers. You can imagine using the program to achieve the following functions: When the

). When you need to set up a local area network, right-click on the icon on the other host will pop up a function menu, which includes file transfer, screen control, screen viewing, telnet and many other remote control commands (Figure 4). For example, after selecting the file Transfer command, first enter the Radmin security account that you created earlier in the Login box that pops up. When the service-s

After an afternoon plus one night, finally put the reptile code to write well, behind there are many want to improve the place (for example, data storage with Redis, use multithreading to speed up, crawl pictures, subdivision data, etc.), to be free to make changes, the following is the specific steps and ideas: tools:pycharm,Google chrome developer tools, Fiddle2 Platform: Python3.4 First , enter the public comments the default area of the home is Sh

If you ping the domain name, ping:unknown host xxx.xxx appears.But when you ping the IP address, you can pass it.The DNS server is not configured properly,Check the configuration file/etc/resolv.conf, if there is nameserver xxx.xxx.xxx.xxx, such as the use of DNS server nameserver 8.8.8.8, if any, modify an available DNS server, such as 8.8.8.8 or 4.4.4.4, Save exit!Of course, if even the IP ping 8.8.8.8 are not ping, then the network configuration is

192.168.168.223 mac-address 12293-73ff-a98d interface GIGABITETHERNET0/0/18User-bind static ip-address 192.168.168.227 mac-address 828f-69fe-f63a interface gigabitethernet0/0/20User-bind static ip-address 192.168.168.170 mac-address 889f-69ff-38f9 interface GIGABITETHERNET0/0/22User-bind static ip-address 192.168.168.177 mac-address 896f-69ff-36f0 interface GIGABITETHERNET0/0/23User-bind static ip-address 192.168.168.178 mac-address 868f-69ff-968d interface GIGABITETHERNET0/0/21This article is

As the saying goes, "self-protection", in the local area network really to their own information security poses a threat is not remote hacker, but their own side of the "people." Because the network Neighborhood shared files are widely used in the local area network, in orde

There are many computers in the LAN, in order to standardize all the computer IP address in the local area network, need to view each computer's IP address. In My Network Places, I can only see the name of the computer, how to quickly get the IP address of the computer in the LAN? Obtain the IP address of many computers in the LAN, which can be obtained by tool

!myHead.Bounds.Contains (cursor.position)) $ { - myhead.hide (); - } the}View Code(6) Add friends to the client.Add friends by entering ID, or go to detailed search(7) The user picture of the client is modified.Show your avatar through a ListView control and update your avatar(8) Personal detailed information operation.A. Personal dataB. Security settings(9) Accurate search for friends.(4) SummaryThis time we implemented the addition of SQL Server database login and friends

Switch. If you can use the following command to check the size of the file allocation unit: Fsutil fsinfo ntfsinfo [drive] The following figure shows all the commands above: Summary In order to achieve the best performance of a disk. To create a disk partition on Windows 2003, you must strictly verify the correct relationship between the disk partition size and the cluster size, and use it as the best practice. In Windows 2008, partitions are aligned by default. When the server is updated from

The scp Local Area Network Copy command First installs the ssh service sudo apt-get install ssh common transmission file. You can use the scp command to copy local files to the target machine: scp file name username @ target machine IP Address: press enter on the target machine path and enter the password to copy the file on the target machine to the local scp user name @ IP address of the target machine: E

]name=centos-$releasever-updatesBaseurl= Http://192.168.1.60/yum/CentOSGpgcheck=0Gpgkey=file:///etc/pki/rpm-gpg/rpm-gpg-key-centos-6Enabled=1#additional packages that could be useful[Extras]name=centos-$releasever-extrasBaseurl= Http://192.168.1.60/yum/CentOSGpgcheck=0Gpgkey=file:///etc/pki/rpm-gpg/rpm-gpg-key-centos-6Enabled=1#additional packages that extend functionality of existing packages[Centosplus]name=centos-$releasever-plusBaseurl= Http://192.168.1.60/yum/CentOSGpgcheck=0Enabled=1Gpgkey

Topic 1 Zjoi min cutMain topic:Ask for a minimum cut between the two points of a non-weighted graph, asking how many point pairs are less than or equal to C.Algorithm discussion: Minimum cut and divide treatmentCode:#include Topic 2 CQOI2016 different minimum cutMain topic:Ask for a different minimum cut number for all point pairs.Algorithm discussion: Minimum cut and divide treatmentIs there a difference from one of the above questions?Code:#include Network