1. Use C programming to check whether the network card is connected to the network cable
# Include # Include # Include # Include # Include Int main (){If (check_nic ("eth0") = 0)Printf ("detect OK./N ");ElsePrintf ("detect fail./N ");} // If the network card is connected, 0 is returned; otherwise,-1 is returned.Int
I. Introduction to the ConceptNetwork programs are divided into server-side programs and client programs. The service side is the one that provides the service, and the client is the party requesting the service. But the reality is that some programs of the client, server-side role is not so obvious, that is, mutual client and service side.
When we write a network program, it is generally based on TCP protocol or UDP protocol for
If you want external devices to access the local website, use the network cable to access the network connected by the route. if you want to ask a non-wireless network adapter, you can set up a local server. after you use a wireless netw
If you want external devices to access the local website, use the network cable to access the network connected by the route. if you want to ask a non-wireless network adapter, you can set up a local server. after you use a wireless netw
The general corporate network will be divided into the intranet (wired) and the external network (wireless), and the network access restrictions rules, resulting in some applications can not be used, this situation we want to be connected to the intranet, but also hope that some programs can access the extranet. What do we do? The following configuration can be u
Get an IP address with a domain name or get a domain name with IP#include #include Convert network address to integer typestruct IN_ADDR IP; ip.s_addr=16885952; printf ("%s\n", Inet_ntoa (IP));Converting an integral type to a network addressLong Local; int port; local=123456; port=1024; printf ("Net:%d\n", htonl (local));//Conversion of host character order and network
If you want external devices to access the local website, use the network cable to access the network connected by the route. if you want to ask a non-wireless network adapter, the local server will be connected by a wireless network card, an external device can access a loc
Some netizen message asks a question: Why installs the operating system to be unable to surf the net. My answer is: the normal Internet access depends on three: 1. There is no problem with the NIC and its driver; 2. There is no problem with the system network connection settings; 3. There is no problem with the network provider "Freeway". For the specific analysis of ne
Docker officially recommends users to use their own custom network, so it is best to use a custom network when using the container, the default Docker use the Bridge network, the bridge networ
Wireless network card is the device of the terminal wireless networks, which is a wireless terminal equipment which is used on the Internet through the wireless network under the wireless LAN coverage. Wireless card with its compact, easy to carry and so on to win a lot of netizens love. So how does the wireless card use? Many friends do not understand the specif
The simplest way to connect a server with a socket is to use the IP and port directly, but the Connect method in the socket class does not provide this way, but instead uses the SocketAddress class to pass the server's IP and port to the Connect method. While this is a seemingly troublesome approach, it brings us another benefit: The reuse of network addresses .The reuse of so-called
Use ARP to detect hybrid nodes in the Network
Author: refdomEmail: refdom@263.netHomepage: www.opengram.com
Due to the harm of Sniffer, it is also important to check whether there is sniffer in the network. Anti-sniff is generated accordingly to detect the networkSniffer In.
There are many ways to detect sniffer. For example, some powerful sniffer will parse the
characters of your NIC's adapter ID do not begin with 0020AF or 00608C, You can then use the RPLCMD.EXE in the NT installation directory to enable NT to support your network card. Rplcmd. EXE use as follows: At the DOS prompt, enter the following command:
Rplcmd [\ server computer name]
The following command options appear on the screen:
Adapter Boot Config prof
+ port " can uniquely identify the host application (process). By using triples (IP address, Protocol, port), the process of the network can be identified, and the process communication in the network can use this flag to interact with other processes.Applications that use the TCP/IP protocol typically
The network administrators started their brains and summed up a lot of network troubleshooting skills. However, by carefully reviewing these skills, we can see that some of the troubleshooting skills are performed on the Windows interface. Although these tricks are more convenient for users, it can also effectively improve the efficiency of network troubleshootin
addresses to a single routing address before forwarding communication.
Enterprises can use this type of Nat when the internal client is located in a different physical location in the network but the same routing address is required. Generally, you need to use dynamic DNS to use overlapping Nat.
For example, your NAT
Network security experts use practice to tell you How situation awareness should be implemented and how network security situation should be handled.
In a large-scale network environment, cybersecurity Situation Awareness obtains, understands, displays, and predicts the future development trend of all security elements
Each time information is shared and transmitted with intranet users, "Network neighbors" will be used. Of course, by default, the system's "Network neighbors" function is very limited, if you want to share the transfer with your friends on the Intranet more efficiently and securely, you must find ways to tap into the potential of "Network neighbors. This is not t
Docker ~ Use the existing network in yml and the existing network in dockeryml
Back to directory
When deploying a highly available cluster using docker swarm, we may need to configure some services in the yml file, and these services may need to use some public databases, these databases may already run in a containe
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