Recent questions tagged network

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network programming - Checking open UDP Port in C++

How can I check if a remote UDP port is open by using native C++? Since UDP is connection-less, calling ... on port status? Platform is Linux. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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network programming - Corda nodes: how to connect two independent pc as two nodes?

One friend of mine and I are trying to develop a CorDapp for a financial use case, I can run the cordapp- ... question in the near future :D See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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network programming - problem sending image file over the socket in c

I am writing a C based server supporting HTTP. &buffer[5] has the file name. I set the header in ... Content-Type: text/plain BufferData:416 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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network protocols - Code to do a direct DNS lookup

I'm thinking of running an experiment to track DNS values in different ways (like how often they change and ... implement such a system from? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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network programming - How to force ipv6 or ipv4 for HttpWebRequest or WebRequest C#

Coming from node.js I can do this to tell node.js to make the request using ipv6 vs ipv4 var http = require( ... header. Is there a better way? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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network protocols - protobuf-net v2 type meta

According to this post (from March), protobuf v2 allows us to resolve types from a stream. Since v2 is now in ... by too much type dependency). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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network programming - Java sending handshake packets to minecraft server

I have been working on a java program that basically acts like Minechat(text-based app to just view chat.) I ... and using strings is required? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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673 views

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network programming - how to use the libnl library to trigger nl80211 commands?

Please can someone give an simple example on how to use libnl to use nl80211. I tried to go ... as NL80211_CMD_GET_WIPHY using the libnl. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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network programming - When does a UDP sendto() block?

While using the default (blocking) behavior on an UDP socket, in which case will a call to sendto() ... getting discarded at lower layers? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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358 views

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network programming - FTP client server model for file transfer in Java

Well, I am trying to implement the ftp server and ftp client in Java. I am trying to receive a file from server ... = new MyClient(); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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465 views

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network programming - C code to get the IP address

How do I get the IP address of the local machine using C code? If there are multiple Interfaces then I ... code to retrieve the IP address. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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367 views

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network programming - Getting gateway to use for a given ip in ANSI C

I have looked around like crazy but don't get a real answer. I got one example, but that depended on the ... are my new best friends ;) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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378 views

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network programming - HttpURLConnection implementation

I have read that HttpURLConnection supports persistent connections, so that a connection can be reused for multiple ... as I saw Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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470 views

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network programming - Default Gateway in C on Linux

How do you find the default gateway of a routing table using C on Linux? I don't want to issue a call ... 'm using doesn't support SIOCGRTCONF. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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485 views

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network programming - How do I set the socket timeout in Ruby?

How do you set the timeout for blocking operations on a Ruby socket? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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820 views

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network protocols - Printing using IPP without drivers (IPP Client)

I have a device/appliance that you cannot install drivers for. I would like to add the ability to support ... printers with the IPP protocol? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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462 views

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network programming - How do you determine if an IP address is private, in Python?

In Python, what is the best way to determine if an IP address (e.g., '127.0.0.1' or '10.98.76.6' ... Is there an existing library that does it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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599 views

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network programming - How to find the socket connection state in C?

I have a TCP connection. Server just reads data from the client. Now, if the connection is lost, the client ... the connection is UP or NOT? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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