Questions tagged [lsof]

Question 1

Suppose you have this script, on an Ubuntu machine: #!/bin/env python3 import sys import time try: i = 1 while True: print(i) i += 1 except Exception as e: sys.stderr.write(f"We ...

Question 2

I have a running process on localhost on port 5000. I have tried kill - 9 <PID> which it works for that PID but it starts a new process with a new PID instead. What's the issue here? I'll put ...

Question 3

My VMs IPv6 address occasionally get on a blocklist. Their "evidence" is that they claim something is making outbound connections to port 25 and issuing an EHLO of an IP address, not a ...

Question 4

According to ps(1), ps doesn't support fd. even I didn't find fd in task_struct of kernel. How can I find fd of a program? َUPDATE: FD means File Descriptor. When I get query from services such as : ...

Question 5

I'm working an issue with ZeroMQ using XSub-XPub. I did lsof on bind in port and see: lsof -i :5556 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME python 475590 codespace 45u IPv4 ...

Question 6

OS is Debian. I'm running nginx as a webserver. I am not running Wordpress. Logging is enabled in the http block with: access_log /var/log/nginx/access.log; error_log /var/log/nginx/error.log; ...

Question 7

I keep having lsof -w -l +d /var/lib/php5 eating up my CPU I want to know who is triggering it and what does it have with php5 ...

Question 8

OS is Debian. I have a few systems that seem to not be freeing disk space correctly. On a normal system: du --max-depth 1 / --exclude=/proc -h -x Seems to almost exactly agree with: df -h / ie, ~800 ...

Question 9

In my example, the wc program is trying to open the test FIFO or named pipe. These in-progress open syscalls seem not to be shown by fuser or lsof: mknod /tmp/testpipe p wc /tmp/testpipe & timeout ...

Question 10

When I use ss (socket statistics) to show the usages of port 5432 I get: $ sudo ss -ln | grep -E 'State|5432' Netid State Recv-Q Send-Q Local Address:Port Peer Address:...

Question 11

When I run lsof I see the output java 1752736 user 9995u sock 0,8 0t0 1432559505 protocol: TCPv6 java 1752736 ...

Question 12

On our A100 machine, we frequently have zombie processes that still allocate memory when already stopped. I usually used fuser -v /dev/nvidia* to determine the PIDs of all processes and kill them ...

Question 13

Per the EXAMPLES section in the lsof(8) man page on manpages.ubuntu.com, I should be able to run a command/take action if a process has a file open: To take action only if a process has /u/abe/foo ...

Question 14

In linux we can run ss -x or lsof -U +E and we can see what type unix socket has. But in macOS there is no ss or we can run lsof -U which only shows TYPE - unix, but I would like to know with some ...

Question 15

Using lsof command I would like to print out TCP connections with ESTABLISHED state but ignoring the ones with localhost. I tried: lsof -itcp@^127.0.0.1 -stcp:established lsof -itcp@(^127.0.0.1) -stcp:...

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Questions tagged [lsof]

how to tell, from the outside, if the output stream of a process has been closed?

Killing a process PID starts a new process instead

Detecting outbound mail

ps ax and -o fd

freeciv in lsof output

Hundreds of strange connections in iftop

Process called lsof using too much CPU

Very large discrepancy between du and df

Finding the processes trying to open some FIFO

Why ss show a port is in use but lsof doesn't?

lsof output file descriptor with asterisk not documented

fuser -v /dev/nvidia* and lsof not responding

Have lsof take action if a process has a file open — and, ideally, do so repeatedly

How can I find out what so_type an existing unix socket has in macOS?

how can I list, with lsof command, TCP Established connections ignoring localhost?

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