networking

问题 I am using centos 6.4 . While doing dig or nslookup, I got below error dig google.com dig: error while loading shared libraries: libcrypto.so.4: cannot open shared object file: No such file or directory here is my ldd of dig '# ldd /usr/bin/dig linux-vdso.so.1 => (0x00007fff5e674000) liblwres.so.80 => /usr/lib64/liblwres.so.80 (0x00007f73d5c1c000) libdns.so.81 => /usr/lib64/libdns.so.81 (0x00007f73d5883000) libbind9.so.80 => /usr/lib64/libbind9.so.80 (0x00007f73d5676000) libisccfg.so.82 =>

问题 Here is my entire code: It uses user input for the host and the port . Server side code: import socket import subprocess, os print("#####################") print("# Python Port Maker #") print("# #") print("#'To Go Boldy Where'#") print("# No Other Python #") print("# Has Gone #") print("# By Riley #") print("#####################") print(' [*] Be Sure To use https://github.com/Thman558/Just-A-Test/blob/master/socket%20client.py on the other machine') host = input(" [*] What host would you

问题 I am trying to send raw ethernet frames using packet_mmap. A good example I found is at this gist. However, this example was using link-level raw socket, so the source ethernet address of ethernet frames sent is fixed to be the address of the interface. What I need is to be able to send an arbitrary ethernet frames (the source ethernet address can be arbitrary). So I adopt the gist a little bit by changing fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP)); to be fd = socket(AF_INET,SOCK

问题 I am looking to replicate the way programs like Git and Rsync communicate and transfer data over an SSH connection, but in Python. I understand that these programs fork and exec an SSH command that starts a process on the server side and communication is achieved by the parent processing talking to the STDIN and STDOUT of the forked child process. In C I have seen this done by creating a Unix socket pair (s0, s1), forking the process, pointing the stdin/stdout of the forked process to s1 on

问题 I am looking to replicate the way programs like Git and Rsync communicate and transfer data over an SSH connection, but in Python. I understand that these programs fork and exec an SSH command that starts a process on the server side and communication is achieved by the parent processing talking to the STDIN and STDOUT of the forked child process. In C I have seen this done by creating a Unix socket pair (s0, s1), forking the process, pointing the stdin/stdout of the forked process to s1 on

问题 I was wondering if someone could help. Is it possible to share resource groups between azure subscriptions; A little bit of background, I have two subscriptions in azure under one tenant, I am after setting up a VPN between each of the subscriptions, however I am yet to find a solution that doesn't involve sharing a resource group to allow connections. With this in mind, is it possible to share resource groups between subscriptions or does it have to be in the same subscription? If this is

问题 I was wondering if someone could help. Is it possible to share resource groups between azure subscriptions; A little bit of background, I have two subscriptions in azure under one tenant, I am after setting up a VPN between each of the subscriptions, however I am yet to find a solution that doesn't involve sharing a resource group to allow connections. With this in mind, is it possible to share resource groups between subscriptions or does it have to be in the same subscription? If this is

问题 From documentation Dns.GetHostEntry() Resolves a host name or IP address to an IPHostEntry instance . Could anyone help me undestand why this function doesn't work for some external IP address (it works for internal IP address) and the ping command works normally? My code is: using System; using System.Net; namespace ConsoleApplication1 { class Program { static int Main(string[] args) { if (args.Length == 0) { Console.WriteLine("Please enter a host name or IP address"); Console.WriteLine(

问题 I have a few containerized projects I would like to talk to each other into a network called 'dev_network'. I would expect to be able to start up both containers and be able to ping them from inside the containers.. E.g. I should be able to ping foo from bar , but I cannot. root@75cba11f489c:/# ping bar ping: bar: Name or service not known These projects live in separate folders , but I would like them to connect to the same network and be able to talk to each other. Here's a simple

问题 I have a server set up on my PC (using Hercules), which is listening on a port # and waiting for a connection. I can't get the android app to receive messages from the server however on my android emulator (Strangely I can send messages to the server), and I can't do either from my physical android phone. All the examples I'm finding online involve android devices connecting to each other, like this one: https://www.coderzheaven.com/2017/05/01/client-server-programming-in-android-send-message