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Alright, so bear with me. This took me an entire day to dig into. what I'm doing I'm running a C program on a remote host over SSH. The program calls a local redis database IP and port and also 8.8.8....
NorseGaud's user avatar
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-1 votes
0 answers
32 views

Mosquitto only works locally, cannot connect from ESP32 I installed Mosquitto on Windows 10 and the broker works locally. I can publish and subscribe between terminals on the same machine without any ...
Norbert Bukała's user avatar
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I am developing an Android app similar to Yacine TV that streams video content using a WebView. However, on some devices running Android 12 and 13, the video player shows a black screen while the ...
Ethan Parker's user avatar
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I’m working on a tool using raw system sockets. The tool needs to send packets with low-level protocols such as IEEE 802.1X. When I inspect the packets in Wireshark, I notice that the radiotap header ...
Wew Auction's user avatar
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We can fully emulate SMTP with current technology. Clearly, I can send a JSON containing the title, the body, and any other email information. The forwarding and replying mechanism can just be regular ...
Mingruifu Lin's user avatar
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1 answer
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I have a win32 app opening a log file on a network share using CreateFile and WriteFile (non overlapped) to write records. What I am seeing when the network share is lost, WriteFile reports an error (...
Paul Marriott's user avatar
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-4 votes
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76 views

I have a brand new computer with Windows 11 and I am facing a performance issue with MySQL I do ovserve on any other machine on the network and I not know how to fix. The MySQL server is running on a ...
user1129682's user avatar
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1 vote
1 answer
94 views

I'm encountering a consistent Connection timed out error when my application, running on a local development server, tries to make HTTP requests to a specific external website. The site loads ...
Oliver Haven's user avatar
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6 replies
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I come seeking advice. I'm attempting to make a game with C and Vulkan (no engine). It will be low scope. It has a low-mid poly aesthetic, fairly involved mechanics, and will be multiplayer, ...
Clause's user avatar
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2 votes
1 answer
121 views

I'm writing a TCP/IP stack for embedded systems, but I wanted to test it on my host system. Originally I tried with tap0 + a bridge. But I quickly realized it would make the most sense to bind to the ...
Charles Lohr's user avatar
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0 votes
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61 views

I made a simple console messenger to test the possibility of connecting 2 or more computers for my game using RadminVpn+Sockets but its not working. I can connect to myself using my radmin ip but if I ...
Gerokop's user avatar
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61 views

I'm developing a Flutter app that loads a web page containing an embedded video player. When the page loads, the browser internally makes several HTTP requests (for example, .m3u8 or .ts files), but I ...
mikealexx's user avatar
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I'm integrating BoringSSL into my networking library for secure communication. I've observed that both SSL_read() and SSL_write() operations can potentially trigger both read and write activities on ...
benrush's user avatar
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3 votes
2 answers
162 views

We use the following function to test internet connectivity every 5 seconds. But in some part of the world, this function always returns false. Now, the problem is we can set a proxy server in Windows ...
Ming's user avatar
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0 answers
71 views

I am working on an ARP spoofing project using C++ and the WinPcap library. I have an issue where two seemingly identical methods of constructing the ARP packet result in different behaviors in ...
nnutural's user avatar
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80 views

I am working on a C++ program on Linux that involves interacting with network namespaces (netns) and a TAP device. My procedure is as follows: My process starts in an initial network namespace (e.g., ...
Aythsr's user avatar
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1 vote
0 answers
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Briefly: is the requirement to re-create TCP socket after it failed (e.g. on timeout) documented in some official manual, guide etc? In details: Some code I stuck upon is faulty in the following way: ...
Rodion Gorkovenko's user avatar
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-1 votes
1 answer
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I’m trying to start a per-shard TCP listener in Seastar, where each shard binds to its own port (6010 + shard_id). On shard 0, everything works — the listener binds and accepts connections fine. But ...
Somesh Mohan's user avatar
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I’m developing an MQL5 Expert Advisor that should connect to a local TCP server (127.0.0.1:5001). The server is running and responds correctly to Telnet. In MetaTrader, I added 127.0.0.1:5001 in ...
franzisko's user avatar
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0 votes
1 answer
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Assuming we know the key and the IV for the data we're getting from the stream, is it possible to decrypt it within stream? I encrypted the same message three times and then decrypted it all at once, ...
user30252103's user avatar
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0 votes
1 answer
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I have a method that connects my app to a Dask Gateway Server def set_up_dask(dashboard=False, num_workers=4, min_workers=4, max_workers=50): gateway = Gateway("http://127.0.0.1:8000") ...
BallpenMan's user avatar
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3 votes
1 answer
196 views

I need to use socket() but the args given to the function make me confused. I have to do an school exercice where I have to use socket for intercept ethernet frame (more specifically arp spoofing). ...
surcouf's user avatar
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0 answers
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I have a transparent proxy that works by spoofing addresses and ports, but for some reason it's not working. On a Debian 12 amd64 server, I used iptables -t mangle -A PREROUTING -j NFQUEUE --queue-num ...
warmBy's user avatar
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0 votes
0 answers
103 views

I'm analyzing a binary protocol captured via IRP_MJ_READ. Each message is 11 bytes, and I suspect the last 2 bytes are a CRC-16 value.Here’s an example of the message in hex: 00 02 c1 00 10 00 00 00 ...
Hasan Abo Ali Alhaj Juma's user avatar
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1 vote
1 answer
132 views

I'm creating a tap device using the tun/tap interface by opening /dev/net/tun. However, when I try to get the MAC address using the SIOCGIFHWADDR ioctl call I get the wrong MAC address. If I make the ...
nee's user avatar
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1 vote
0 answers
119 views

I’m working with a Linux TUN device (MTU 65535) where I write jumbo TCP packets (10KB+), and my goal is for the kernel (via software GSO) or the NIC (via TSO if available) to segment them into MTU-...
Alex Barysevich's user avatar
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0 votes
1 answer
102 views

I'm grappling with a highly intermittent java.net.SocketException: Broken pipe error while uploading multiple images from my developemnt Android app using HttpURLConnection to a production Java server....
Tyler's user avatar
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3 votes
1 answer
129 views

I have written a database server and client, and i'm using a poll loop #include <stdio.h> #include <stdbool.h> #include <getopt.h> #include <stdlib.h> #include <stdlib.h> ...
Kouroshtkk's user avatar
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3 votes
1 answer
139 views

I'm practicing in networking programming. Currently I'm trying to make a program that crafts a single ARP packet and receives the response. Further, I want to expand it to handle the whole subnet. But,...
Ambrosius's user avatar
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2 votes
0 answers
203 views

I can connect a Unix server and client socket just fine, but only if they are on the same machine. My code does not work even if they are running on separate machines connected to the same router. To ...
Jen's user avatar
  • 21
0 votes
1 answer
102 views

I am trying to extract the IP address of a Linux interface as a 32 bit integer. Similar to this question: Get IP address of an interface on Linux but unfortunately this question extracts it as a ...
intrigued_66's user avatar
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1 vote
0 answers
260 views

I'm using Rust's std UdpSocket to send data from one socket to another one locally. It all works fine if I set no read timeout or if I set a "big" read timeout like 10ms. Once I set the ...
Tim Woocker's user avatar
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1 vote
0 answers
57 views

I'm writing a Linux kernel module that prints the routing tables using dmesg. To do this, I'm trying to use the fib_get_table function to access FIB (Forwarding Information Base) tables. Here’s a ...
Alessandro Torrisi's user avatar
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0 votes
0 answers
115 views

Tried to run this script in application env and just commands on their own in terminal. public resetNetworkAdapter(): void { // windows reported everything is OK for most of adapters, // but ...
bl4z3rr666's user avatar
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0 votes
0 answers
106 views

I used wandb.init and resulted in the error below. wandb: Currently logged in as: MyWandbAccount (accountname) to https://api.wandb.ai. Use `wandb login --relogin` to force relogin wandb: ERROR Run ...
Xingrui Zhuang's user avatar
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0 votes
0 answers
36 views

My frontend in react is unable to resolve name 'backend' in python. I am using docker-compose. The docker-compose.yaml file is given below. What's wrong? version: '3.8' services: # PostgreSQL ...
user1288043's user avatar
  • 319
0 votes
1 answer
111 views

I'm trying to build a lightweight TCP server in Node.js that can handle multiple clients concurrently without blocking any of them — and all of this in a single-threaded manner, staying true to Node....
user27690039's user avatar
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0 votes
1 answer
101 views

Title: Warning Signs in INET 4.5.4 with OMNeT++ 6.1 Despite Successful Build — Still Getting Runtime Errors Hi everyone, I’m working on a project using INET Framework version 4.5.4 with OMNeT++ 6.1, ...
user20079303's user avatar
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1 vote
0 answers
98 views

I am trying to capture and re-inject packets sent over ib_send_bw (infiniband RDMA) over two linux machines. I am utilizing RoCEv2 so rxe0 is my virtual NIC on both machines that would allow RDMA to ...
Homit Dalia's user avatar
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2 votes
0 answers
52 views

Consider the following sample code: #include <iostream> #include <string> #include <cstring> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #...
Jean-Michaël Celerier's user avatar
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0 votes
1 answer
63 views

I observed weird behavior when performing non-blocking accept loop. When there are multiple connection requests in the queue, only the first accept attempt succeed. All subsequent attempt fail with ...
Guest0x0's user avatar
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0 votes
0 answers
53 views

client.cpp #include <sys/socket.h> #include <unistd.h> #include <netinet/in.h> #include <arpa/inet.h> #include <iostream> #include <string.h> #include <fcntl.h&...
abrar's user avatar
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0 votes
0 answers
66 views

I know that the send() and recv() will write and read data from sender buffer & receiver buffer which is limited in size. That's way if we want to send big data like we want to send 200mb data ...
Darevil294's user avatar
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0 votes
1 answer
60 views

Getting into protocol development with Scapy, going through documentation and watching videos on Scapy but I'm a bit confused with field types. Let's assume something generic for a packet structure: | ...
Darkonode's user avatar
  • 61
2 votes
1 answer
96 views

I need to do async_read_until, after which I want to call async_read_some using the same boost::asio::streambuf that was used for async_read_until. The reason why I want to use the same boost::asio::...
Joe J's user avatar
  • 1,349
2 votes
1 answer
114 views

I was writing a simple C server and experimenting with setsockopt, so I wrote the following: int lsock = socket(AF_INET, SOCK_STREAM, 0); int mss = 576; if (setsockopt(lsock, IPPROTO_TCP, TCP_MAXSEG, ...
Armaho's user avatar
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2 votes
0 answers
66 views

tl;dr Some .NET APIs are unable to resolve mDNS host in local network. Am I missing something, or is the API inconsistent? I have a raspberry running in the local network. According to the docs, it ...
migajek's user avatar
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1 vote
0 answers
45 views

Is there a way for a MESH_ROOT to scan for Access points? I have read WiFi API functions should not be used while WiFi Mesh is active. Is what I am trying to do below possible? Or maybe there is a ...
ADL's user avatar
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1 vote
1 answer
345 views

I'm building a .NET MAUI app that communicates with a local server by sending HTTP POST commands. I have a class in a .NET library, and I use HttpClient to send requests. It works perfectly and ...
Matan Yamin's user avatar
  • 21
0 votes
0 answers
64 views

Does the igc driver support AF_XDP TX at all — even in copy mode? Has anyone successfully used AF_XDP with an Intel i225/i226 NIC using igc? Would really appreciate confirmation, success stories, or ...
Hosein Kangavar Nazari's user avatar
  • 13

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