Questions tagged [tcp]
TCP stands for Transmission Control Protocol and is one of the core protocols of the Internet Protocol Suite. TCP complements the Internet Protocol (IP), and therefore the entire suite is commonly referred to as TCP/IP.
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I need assistance with the default credentials of the YIIOT T-27 camera (Necesito ayuda con las credenciales predeterminadas de la cámara YIIOT T-27) [closed]
English Translation (via Apple Translate):
I have a YIOT IP camera model T-27 and I can't find the default credentials to access it. I have tried common combinations such as admin/admin, admin/12345, ...
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Capture TCP stream with tcpdump/netcat
I have a hardware device that hosts two separate TCP modules. One is for receiving commands from other machines, while the other is a TCP stream server that sends data based on the commands received. (...
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How to simulate Hercules on local IP address?
I would like to simulate a TCP server, using Hercules (by HW-Group).
When I configure the port (12714), netstat -aon | findstr "12714" shows me this result:
DOS Prompt>netstat -aon | ...
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How do we reach an IP address?
How does the following work in TCP/IP protocol?
There are two subnets:
subnet A is 10.0.0.0/8
subnet B is 10.20.0.0/16
A host in Network A with an IP address of 10.20.3.4 wants to access a host 10....
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Minecraft server using ngrok for port forwarding stopped working
So I built a PC using pieces I had laying around to make into a Minecraft server. I installed Ubuntu on it (I think it's the latest version because I installed it like a week ago. I didn't manage to ...
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ARP request is successful, but TCP SYN is not visible in output of Wireshark
I was redirected from Network Engineering, hopefully below is in scope of on-topics.
I have a TCP server, its properties are the following:
It runs within a virtual machine (VMware).
The host OS is ...
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Linux netfilter: How to capture, modify and retransmit packets that my host is sending to a specific destination?
I am trying to write a linux service that captures the packets that go from my personal server to a specific destination and performs necessary changes to them. More specifically, i want to find all ...
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Are extra flags discarded in TCP exchanges?
A "normal" TCP handshake looks like this:
MachineA → SYN → MachineB
Machine B → SYN,ACK → MachineA
MachineA → ACK → MachineB
This means that for each step, a flag (or set of flags) is ...
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How to explain sequences of FIN,ACK instead of FIN - FIN,ACK?
Context: newly installed Debian 12, I get a bunch of strange logs related to ssh:
root@square:~# journalctl -u ssh -f
May 07 11:13:00 yop-square sshd[766]: error: kex_exchange_identification: ...
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PowerShell: Diagnose timeout vs. connection refused on TCP port with Test-NetConnection
I frequently need to diagnose network connectivity issues and I'm currently using Test-NetConnection in PowerShell (Version 5.1). The output tells me if a port is reachable. In case it's not, I would ...
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Delivery of packets to the correct web servers when they run in same machines
For example, I run two web servers in a single machine (only a single NIC available).
They use different ports (let us say: 1200 and 1201)
Now when a client (say from a mobile device or a browser from ...
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How does HTTP Keepalive handle multiple requests along with EOF from same origin?
says a client has multiple files to post to a server via HTTP Post method, there will be two api calls. since I don't want to create two TCP connections and I want to reuse TCP connection, so I use ...
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Linux 6.5 netfilter NAT reuses TCP ports in TIME_WAIT status?
In my understanding, Linux (netfilter)'s NAT doesn't reuse TCP ports in TIME_WAIT status, but seemingly Linux >= 6.5 reuses TCP ports in TIME_WAIT, even if the destination is the same.
For example, ...
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How TCP handle mutiple concurrent requests from same host
Say there is a web server that exposes port 80 with two endpoints, one for returning datasetA, the other for returning datasetB.
I have an application that does multithreading so I might send two ...
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How can I fix this? “XRAY: transport/internet/websocket: failed to serve http for WebSocket > accept tcp [::]:8443: use of closed network connection.”
Recently I bought a Germany based VPS server to create my own VPN using v2ray because I live in Iran and the internet is heavily censored here.
I connected my domain to CloudFlare CDN to avoid my ...
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