portforwarding

问题 I am designing a p2p application which works on port 30000. My router is not UPnP so I required to forward a port to router. But Skype a another p2p application works without port forwarding on my pc. When I analyzed it with wireshark I found its using UDP port 48980, 58544. I am using c++. There is a library in python here which does it for Nat PnP routers . Is it possible to programmatically forward port to router irrespective of type of router and operating system . What should be the

问题 I'm trying to forward all traffic from port 6999 to port 7000 (I know I could use iptables, but the idea is to use Node.js to do some packet inspection). Here is the code I have sofar: var net=require('net'); var compress=require('./node-compress/compress'); var ip='172.16.1.224'; var ipPort=6999; var opPort=7000; var output=net.createServer(function(connOut){ var input=net.createServer(function(connIn){ connIn.pipe(connOut); }); input.listen(ipPort,ip); }); output.listen(opPort,ip); It just

问题 kubectl expose commands can be used to create a service for the applications and assign an IP address to access it from internet. As far as I understand, to access any application within Kubernetes cluster there should be a service resource created and that should have an IP address which is accessible from external network. But in case of port-forward how kubectl creates an connection to the application without an IP address which is accessible externally? 回答1: kubectl port-forward makes a

问题 Full Disclosure: There\'s a similar question here. Is there any way I can test if a particular port is open and forwarded properly using PHP? Specifically, how do I go about using a socket to connect to a given user with a given port? An Example of this is in the \'Custom Port Test\' section of WhatsMyIP.org/ports. 回答1: I'm not sure what you mean by being "forwarded properly", but hopefully this example will do the trick: $host = 'stackoverflow.com'; $ports = array(21, 25, 80, 81, 110, 443,

问题 Here is my setup: - Host: Windows XP - Guest: Ubuntu 10.04 - Networking: NAT I am setting an Apache web server on the Guest, but I want to be able to do this on the Windows machine: - go to the browser, type http://localhost:8000 Also, I tried to change my networking to bridge and I got a new IP. But when I tried to do http://:8000, it says that it could not connect. 回答1: Network communication Host -> Guest Connect to the Guest and find out the ip address: ifconfig example of result (ip

问题 I have two network board in my pc: The main one has the local ip -> 192.168.1.111 The secondary ones has the local ip -> 192.168.0.200 The main one has internet connection and the second one is connected to a device with the IP 192.168.0.33, it has a http server in port 80. I have an apache-server in the main connection (port 4422), and I can access from anywhere, what I want now is when I detect a connection from 4422 i want to redirect this connection to 192.168.2.33:80 How can I do this