#lsof
port 3000 is already in use.

skip lsof. press K twice.

portlivo.com/?utm_source=bluesky
November 5, 2026 at 2:46 PM
Show GN: MyLocal - 외부에 열린 개발 서버를 보여 주고 업무 시간 뒤 정리하는 앱

MyLocal은 외부에 열린 개발 서버를 보여 주고, 업무 시간이 끝나면 알린 뒤 꺼 주는 앱입니다. lsof 는 확인하는 순간의 포트만 보여 줍니다. MyLocal은 누가 띄웠고 왜 열렸는지도 보여 주고, 업무 시간 뒤에 새로 뜬 서버도 계속 찾습니다. 저는 백엔드 개발자입니다. 최근 제 Mac에 정보 탈취형 악성...
Show GN: MyLocal - 외부에 열린 개발 서버를 보여 주고 업무 시간 뒤 정리하는 앱
MyLocal은 외부에 열린 개발 서버를 보여 주고, 업무 시간이 끝나면 알린 뒤 꺼 주는 앱입니다. lsof 는 확인하는 순간의 포트만 보여 줍니다. MyLocal은 누가 띄웠고 왜 열렸는지도 보여 주고, 업무 시간 뒤에 새로 뜬 서버도 계속 찾습니다. 저는 백엔드 개발자입니다. 최근 제 Mac에 정보 탈취형 악성...
news.hada.io
November 3, 2026 at 5:00 AM
Port 3000 already in use? Skip the lsof dance. In Binnacle's ⌘K line, type "port 3000" to see what's holding it, then "kill port 3000" to free it.

https://binnacle.shafer.llc?utm_source=bluesky
October 31, 2026 at 5:04 PM
I verified the listener with:

lsof -nP -iTCP:9997 -sTCP:LISTEN

Result: splunkd listening on *:9997.

Then I retested from Windows.

TcpTestSucceeded: True

The TCP connection worked. Log ingestion still needed separate verification.
October 31, 2026 at 10:55 AM
A Linux process looks suspicious?

5 commands to investigate:

ps aux → List processes
top → Monitor CPU usage
pstree -p → Check process hierarchy
lsof -p PID → Inspect open files
readlink /proc/PID/exe → Find executable

A process name alone isn't proof. Check its behavior.
October 30, 2026 at 2:45 PM
That's the classic one. I check with lsof -I :3000 after any agent run now, because the summary and the process list often disagree.
October 30, 2026 at 10:10 PM
proc, a Free Process Tool, Now Has an Agent Skill That Stops Claude Code and Codex From Piping lsof Into kill -9 on Processes They Didn't Start

https://lockergnome.com/proc-cli-agent-skill-stops-lsof-kill-9/

#cli #macos #agents #opensource
October 27, 2026 at 9:00 PM
proc, a Free Process Tool, Now Has an Agent Skill That Stops Claude Code and Codex From Piping lsof Into kill -9 on Processes They Didn't Start

lockergnome.com/proc-cli-agent-skill-st…

#cli #macos #agents #OpenSource
October 27, 2026 at 9:00 PM
2/ 𝟭. 𝗙𝗶𝗹𝗲𝘀 𝗮𝗻𝗱 𝗳𝗼𝗹𝗱𝗲𝗿𝘀: ls, cd, cp, mv, rm, mkdir, ln -s
𝟮. 𝗦𝗲𝗮𝗿𝗰𝗵 𝗮𝗻𝗱 𝘁𝗲𝘅𝘁: grep, find, cat, less, tail -f, sed, awk, sort
𝟯. 𝗨𝘀𝗲𝗿𝘀 𝗮𝗻𝗱 𝗮𝗰𝗰𝗲𝘀𝘀: sudo, chmod, chown, id, useradd, passwd
𝟰. 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗲𝘀: ps, top, kill, pkill, free -h, lsof, strace
October 28, 2026 at 1:00 PM
sudo lsof?
October 24, 2026 at 11:41 AM
zgupiałam zupełnie, pod localhost:8000 hula mi llama-ui, ale jak robię lsof -i :8000 to mam pusto
October 24, 2026 at 1:07 AM
proc CLI unifie la gestion des processus et ports sur macOS, Linux et Windows ; une seule commande remplace lsof, ps et kill, et s’installe en une ligne avec Homebrew.

techfi24.com #proc
proc CLI simplifie la gestion des processus et ports
proc est un utilitaire en ligne de commande destiné à la gestion sémantique des processus sur macOS, Linux et Windows. Il accepte comme cibles un port, un PID, un nom ou un chemin de fichier, ce qui é
www.techfi24.com
October 26, 2026 at 8:10 AM
Cómo ver puertos abiertos en Windows, Mac y Linux

¿Sabés qué programa escucha en tu PC? Aprendé a ver puertos abiertos en Windows, Mac y Linux con netstat, PowerShell y ss, y cerrá los que no usás

#puertosabiertos #netstat #windows #linux #powershell
Cómo ver puertos abiertos en Windows, Mac y Linux
Guía 2026 con los comandos exactos (netstat, PowerShell, lsof, ss) para ver puertos abiertos en Windows, Mac y Linux, y cerrar los que no necesitás.
donweb.news
October 23, 2026 at 5:16 AM
PCMan-FM-Qt で外付けHDDのファイルが砂時計で全然見ることが出来ない
lsof すると gst-video てのが掴んでいる
これをkillしたら動くようになった
多分サムネイル作ろうとして固まっていた?
October 20, 2026 at 8:57 PM
Linux security investigations start with knowing where to look.

ss reveals listening ports.
last shows login history.
sha256sum checks file integrity.
lsof links connections to processes.
journalctl reveals system errors.

The goal isn't memorizing commands. It's finding evidence.
October 19, 2026 at 6:43 PM
also: add -sTCP:LISTEN to your lsof one-liner, or it can kill your browser instead of the server. wrote up the whole routine:

medium.com/@anmolsethi....
How to kill the process on a port on a Mac (and what to do when it comes back)
One command frees the port. Here’s the safe way to run it, and why Postgres is back a second later.
medium.com
October 20, 2026 at 2:43 AM
Quick #FreeBSD tip

Want to see all open files, similar to lsof? Use procstat -af.
October 14, 2026 at 12:02 PM
EADDRINUSE on port 3000?

Type `port 3000` in Binnacle's ⌘K line. See the process, its project folder and idle time, then stop it. No lsof.

Try it free for 14 days:
https://binncale.online?utm_source=bluesky
October 14, 2026 at 5:00 PM
October 11, 2026 at 9:57 PM
lsof -i:8000 って lsof -i :8000 ってことか
October 10, 2026 at 12:26 AM
Why is disk space still missing after you delete a large file?

Source: Red Hat Customer Portal - https://access.redhat.com/solutions/2316

#linux #sysadmin #devops
October 10, 2026 at 1:00 PM
lsof コマンド使うのか。
なるほど。
October 8, 2026 at 1:38 PM
lsof -i :8080 te dice qué proceso tiene el puerto tomado. mucho mejor que ir matando cosas hasta que el server levante
October 8, 2026 at 3:01 PM
When localhost:5173 won't bind, lsof -i :5173 shows what's holding the port. Rig keeps that state visible alongside your project processes, so you can track the conflict from one window.
October 7, 2026 at 10:47 AM