Do you know, that in #Windows OS you can test server reachability even when #ICMP is blocked using #PowerShell command Test-NetConnection (or tnc #shortcut)? #example "Test-NetConnection 1.1.1.1 -port 443" to perform SYN/ACK #TCP testing. Doesn't work for #UDP services unfortunately.
Be #network #smart
#tip #networking #firewall #test #server

Getting back to the basic, I write a little bit about using the Internet Engineering Taskforce RFC 7230 to create a minimal web server using Go's net package.

A fun exercise in exploring educational/fundamental technology we take for granted every day.

https://andrew-mccall.com/blog/2025/03/go-net-listener-http-server-example/

If anyone were to obtain the public IP of my server, and did a port scan on it, every port would come back as closed
> reason behind the failure of #TCP hole punching is only the router NAT table. I will try to explain my best:

Client 1 --> connect(client2) --Internet-- connect(client1)<-- Client 2

Now if Client1 **SYN Packet**** reaches to the client2 and **client2 **SYN packet wasn't released** , the ROUTER of client2 can do 2 things: 1. send RST packet back as connection refused to client1. 2. drop packet immediately and no reply send to client1
#p2p
-- SOF
# tailscale
https://www.reddit.com/r/Tailscale/comments/1g5munc/what_are_you_using_tailscale_for/
Now that's some motivation to buy a domain name
to keep my idle domain from expiring , I didn't like the provider , #selfhosting folks , any ideas?

Named pipes are only 16% better than #TCP sockets.
https://stackoverflow.com/questions/1235958/ipc-performance-named-pipe-vs-socket

Currently playing around with https://github.com/MightyShadow702/v86Emu-webxdc which leverages https://github.com/copy/v86 into DeltaChat. Effectively allowing you to run a 32 bit .iso file inside DeltaChat as a webxdc application.

Right now tcp/ip is wired up with realtime communication over iroh

What would happen if we didn't use TCP or UDP?

https://github.com/Hawzen/hdp

it proxies from a #TCP listener to a #SOCKS5 proxy because apparently socat doesn't
https://github.com/iliana/striped?tab=readme-ov-file#user-content-fn-1-afe3031270ab3c027158c7f9aaab218a

#TCP Fast Open is a TCP extension that reduces network latency by packing
data in the sender’s initial TCP SYN. Setting 3 = enable TCP Fast Open for
both incoming and outgoing connections:
https://github.com/aldoborrero/templates/blob/main/templates/blog/nix/setting-up-machines-nix-style/nixos/modules/tcp-optimizations.nix

How to visualize #server #metrics in #RealTime via #TCP in @LabPlot ?

@labplot@lemmy.kde.social @sysadmin@lemmy.world @sysadmin@lemmy.ml @cybersecurity

The purpose of this simple tutorial is not to position #LabPlot against dedicated applications, but rather to show how its "Live Data" functionality can be used to read and visualize data in real time.

https://docs.labplot.org/en/tutorials/live_data/tutorials_live_data_server_monitoring_via_tcp.html

https://bytemaniac62.blogspot.com/2025/02/zebra-unleashing-power-of-open-source.html #UNIX #LINUX #COMPUTER #internet #TCP

Túnel TCP con Cloudflare Tunnel https://blog.elhacker.net/2025/02/tunel-tcp-con-cloudflare-tunnel-ssh-rdp-smb.html #CloudFlare #tutorial #manual #tunnel #rdp #smb #ssh #tcp

You have no idea about how upset folks get about having to drain #network sockets in user space for #UDP. #TCP doing this in kernel space has warped everyone's mind and no one cares about the health of the internet.

Sharpen Your TCP Troubleshooting Skills at SharkFest'25 US!

Join Jasper Bongertz for the TCP Analysis Masterclass - dive deep into advanced TCP analysis, from detecting packet loss to multi-point capture troubleshooting. Don't settle for the basics, master the complexities of TCP!

• Date: June 16
• Spots are limited—sign up now: https://sharkfest.wireshark.org

#Internet #Networking with MSDOS

Packet Drivers Collection for FreeDOS, MS-DOS, IBM PC-DOS, DR-DOS.
https://packetdriversdos.net

#msdos #freedos #ibm #ibmpc #pcdos #drdos #packet #packetdrivers #drivers #network #tcp #telnet #ftp #http #nntp #bbs #mtcp

The open container laws for weed in NH are applicable now, which is weird because I thought this was always a thing.

It’s nice to know that medical patients are exempt from this law but I’m really not sure why. It’s not unreasonable for me to throw my weed in the trunk before I drive somewhere with it if I have already opened it, but I do appreciate them saving us from an accidental crime.

https://www.dhhs.nh.gov/programs-services/population-health/therapeutic-cannabis

ok hear me out:
"TCP wrapped"

Umm...while sipping on my Tropical Drink and keeping an eye on it....

A Month Without IPV4 is Like a Month Without… https://hackaday.com/2024/12/03/a-month-without-ipv4-is-like-a-month-without/ #NetworkHacks #networking #tcp/ip #IPv6