network-programming

问题 I'm trying to detect when an Ethernet cable is plugged-in or unplugged but i have some probleme and i don't know if i'm doing this good or not. I'm using NetworkChange.NetworkAddressChanged to detect when the network change and then NetworkInterface.GetAllNetworkInterfaces() for checking if Ethernet connexion is available or not with the property .OperationalStatus . But when i search for the Ethernet connexion in all the network interfaces, it return me what i'm looking for, but it always

问题 I want to know, how sockets are implemented in the Java Virtual Machine. Is there a native library included? And if, is it a C library? Where can I find information about this topic? The offical Java tutorial on networking does not help me there. Some interesting links would help. Update: Are there any official information provided by Sun? Thanks in advance! Edit I found a proof, I mark my answer as the correct one. Thanks to Oscar, that was the perfect hint for me!!! THANKS! 回答1: Probably

问题 I want to know, how sockets are implemented in the Java Virtual Machine. Is there a native library included? And if, is it a C library? Where can I find information about this topic? The offical Java tutorial on networking does not help me there. Some interesting links would help. Update: Are there any official information provided by Sun? Thanks in advance! Edit I found a proof, I mark my answer as the correct one. Thanks to Oscar, that was the perfect hint for me!!! THANKS! 回答1: Probably

问题 I have a program in go which accepts URLs from clients and gets them using the net/http package. Before doing further processing, I would like to check if the URL maps to private (non-routable / RFC1918 networks) address space. The straight-forward way would be to perform an explicit DNS request and check the address for the known private ranges. After that, perform the HTTP GET request for the URL. Is there a better way to accomplish this? Preferably integrating with http.Client so it can be

问题 I have a program in go which accepts URLs from clients and gets them using the net/http package. Before doing further processing, I would like to check if the URL maps to private (non-routable / RFC1918 networks) address space. The straight-forward way would be to perform an explicit DNS request and check the address for the known private ranges. After that, perform the HTTP GET request for the URL. Is there a better way to accomplish this? Preferably integrating with http.Client so it can be

问题 I am creating a server for a game that handles multiple clients over UDP using the asynchronous methods, and am specifically working on clean disconnect logic. When a client hard crashes (their program is closed without proper disconnect logic) the readCallback on the server throws the SocketException An existing connection was forcibly closed by the remote host which makes sense, however when the read is triggered the next time on the loop in read it crashes despite the exception being

问题 I am looking for a way to connect to a non-broadcast (hidden) network via C#. This is a new area of development for me. It is a UWP application that needs to be able to manage WiFi connections. I am currently using the Windows.Devices.Wifi namespace to do pretty much everything else, but I don't know how to do the non-broadcast. I have the SSID and the password for the network. I might be missing something, and it could be really easy to do, but I am missing something. Anyone able to help me

问题 I am looking for a way to connect to a non-broadcast (hidden) network via C#. This is a new area of development for me. It is a UWP application that needs to be able to manage WiFi connections. I am currently using the Windows.Devices.Wifi namespace to do pretty much everything else, but I don't know how to do the non-broadcast. I have the SSID and the password for the network. I might be missing something, and it could be really easy to do, but I am missing something. Anyone able to help me

问题 I have written below code to login to HP ARuba Switches and Make changes.. But it is not working.. Gives Error after login. What Can I change in below code to make it work with Aruba OS. It should throw error if anything goes wrong and save it in one file based on error.. And if any other device comes other than Aruba , should throw error and continue. Model - 2930F-48G-PoE Any help will be highly appreciated. from getpass import getpass from netmiko import ConnectHandler from netmiko.ssh

问题 I am checking socket options and I got this error when I compile. I tried to google it and it looks like no one has encountered this problem before. #include <netinet/tcp.h> #include <stdio.h> #include <sys/socket.h> #include <arpa/inet.h> #include <unistd.h> #include <string.h> #include <sys/types.h> #include <netinet/in.h> #include <netdb.h> #include <stdlib.h> static char *sock_str_flag(union val *, int); struct sock_opts { const char *opt_str; int opt_level; int opt_name; char *(*opt_val