networking

问题 I'm struggling with a small project I am working on. I want to implement functionality in GO that allows me to set the IP header TTL on an outgoing UDP packet that I then send and view the received TTL on the other end. I have a tried using a number of connections provided by the 'net' library and have so far had no success (I can set the TTL but I can't read it). Can anyone suggest a way of sending and receiving UDP packets that provide access to the packet's TTL field? 回答1: Set TTL: var

问题 First time in Stackoverflow and I'm hoping someone can help me. I'm looking at a proof of concept to pass RDP traffic through a TCP Proxy/tunnel which will pass through firewalls using HTTPS. The problem has to do with deploying images to machines and so it can't be assumed that the .NET framework will be present, so C++ is being used at the deployment end of a connection. The basic system I have at present is a program which listens for client connections on a port then passes any data to a

问题 First time in Stackoverflow and I'm hoping someone can help me. I'm looking at a proof of concept to pass RDP traffic through a TCP Proxy/tunnel which will pass through firewalls using HTTPS. The problem has to do with deploying images to machines and so it can't be assumed that the .NET framework will be present, so C++ is being used at the deployment end of a connection. The basic system I have at present is a program which listens for client connections on a port then passes any data to a

问题 First time in Stackoverflow and I'm hoping someone can help me. I'm looking at a proof of concept to pass RDP traffic through a TCP Proxy/tunnel which will pass through firewalls using HTTPS. The problem has to do with deploying images to machines and so it can't be assumed that the .NET framework will be present, so C++ is being used at the deployment end of a connection. The basic system I have at present is a program which listens for client connections on a port then passes any data to a

问题 my project's aim is to generate a network diagram, I've made a program that creates objects as swicth and nodes in python then it generates a gexf file and my question is : Can everybody tell me if he knows a way that allow us to choose a node image by using gexf, networkx or other tools. Thank you so much 回答1: NetworkX supports adding any form of data as attributes for a node such as an image: G=nx.Graph() G.add_edge(0,1, image=my_img) Essentially everything is stored as a dictionary

问题 I am writing my own simple modules in omnet++. Inside the omnet IDE, I have created three simple modules. After that I have created a "network" using those modules. It is building successfully, but whenever I try to simulate it it shows Error in module (cModule) NetworkTopologyOnly (id=1) during network setup: Class "mySimplemodule2" not found -- perhaps its code was not linked in, or the class wasn't registered with Register_Class(), or in the case of modules and channels, with Define_Module

问题 I am working on an Android application and I am using various libraries like Picaso, Retrofit, Crashlytics, etc. and my college WIFI have proxy on it. I know how to use a proxy when sending a HTTP requests to a server, but all the libraries that I am using have there own HTTP requests, so overriding all their HTTP classes would be a headache, and I am not even sure how to do that. So, is there a way to route all the traffic of the App through a proxy (when available), like any library or some

问题 What is the order in which NetworkInterface.getNetworkInterfaces() returns an enumeration of network interfaces? Is there a way to affect that on JVM level or on Linux OS level? 回答1: According to the source of the OpenJDK (found in src/solaris/native/java/net/NetworkInterface.c, method enumInterfaces ) it will return IPv4 interfaces first (method enumIPv4Interfaces ), followed by IPv6 interfaces (method enumIPv6Interfaces ). The order within those categories seems to be the same that the OS

问题 I need to write a web application which receives a lot of HTTP requests and takes a long time (30s to 2min) to process each request (in turn making other network requests) before returning a response. Because there would be a lot of requests coming in and those connections are held open I'm thinking of going down an event driven route, which leads me to think Netty is appropriate. If each request takes a long time to process, is that going to block netty's processing? Or can I receive a

问题 I need to write a web application which receives a lot of HTTP requests and takes a long time (30s to 2min) to process each request (in turn making other network requests) before returning a response. Because there would be a lot of requests coming in and those connections are held open I'm thinking of going down an event driven route, which leads me to think Netty is appropriate. If each request takes a long time to process, is that going to block netty's processing? Or can I receive a