What's the difference between netstat and Powershell's Get-Process and why I'm getting different results?
For example, on my machine running netstat -a -n -o -b, one of the processes is
Proto Local Address Foreign Address State PID
TCP 0.0.0.0:18882 0.0.0.0:0 LISTENING 13708
[System]
But running Get-Process I don't see any process with Id 13708.
Similarly, trying to kill this process (Stop-Process -Id 13708) returns an error message stating that:
Stop-Process : Cannot find a process with the process identifier
13708.
EDIT:
The process is started by starting a proxy server (Titanium-Web-Proxy) to capture browser traffic and the process I'm talking about remains in case the proxy is not stopped.
Related
I'm currently working on a socket application and it appears that my code doesn't end the connection between the sockets and causes an error: bind failed with error: 10048.
I then wanted to shut down the process associated to this link using the 'taskkill /F /PID ....' command with the PID I found but the process cannot be found. Did I do something wrong here?
Here are the terminal commmands I used:
PS C:\Users\user> netstat -ano | findstr 8888
TCP 127.0.0.1:8888 0.0.0.0:0 LISTENING 11112
PS C:\Users\user> taskkill /F /PID 11112
Erreur : le processus "11112" est introuvable. **the process cannot be found**
It is also impossible to locate the process in the task manager.
Error 10048 is WSAEADDRINUSE, meaning the IP/port you are trying to bind to is still in use. Even though you shutdown a previous process that was using the IP/port, the OS itself is likely still holding the IP/port open and hasn't released it for reuse yet. By default, the OS internally holds onto a closed IP/port for an extra period of time to ensure any pending data for that IP/port gets flushed from the network. To work around that, you can enable the SO_REUSEADDR option on your listening sockets before binding them. Or, you can turn off a socket's SO_LINGER option before closing it.
I initially ran jenkins in a docker container through my MacOS terminal successfully after running docker-compose up which generated the long admin password cypher. However after I restarted my machine, the setup vanished. But each time I run docker-compose up after exposing jenkins port 8080 on port 8082 and Jira port 50000 on port 200000 having tried exposing them externally on other ports previously, I keep getting the error below:
**Creating jenkins ... error
ERROR: for jenkins Cannot start service jenkins: driver failed programming external connectivity on endpoint jenkins (****************************************************): Bind for 0.0.0.0:20000 failed: port is already allocated
ERROR: for jenkins Cannot start service jenkins: driver failed programming external connectivity on endpoint jenkins (****************************************************): Bind for 0.0.0.0:20000 failed: port is already allocated**
I have stopped, killed and removed all containers, removed all images and pruned all networks, but nothing seems to work.
What's a way around this and how do I free up allocated ports?
You can find the process that is running on port 20000 using:
lsof:
lsof -nP -iTCP -sTCP:LISTEN | grep <port-number>
or
netstat:
netstat -anv | grep <port-number>
It is probably just an old process that stays as zombie. Just kill that process (you can use kill -9 <pid>) and try the same operation again.
I am trying to setup a portforwarding with podman on Mac so that applications running on the Mac, can use the podman.sock file e.g. for Docker compatibility.
I got this to run once with the following setup (the podman command is probably not as relevant, but set the context):
$ podman machine start
$ podman system connection list // determine the port for the following command
$ ssh -i ~/.ssh/podman-machine-default core#localhost -p 53136 -L'/tmp/podman.sock:/run/user/podman/podman.sock'
When I execute that command, the following response is being printed and I am being ssh'd into the podman virtual machine:
unix_listener: cannot bind to path /tmp/podman.sock: Address already in use
Could not request local forwarding.
If I now try to find out which process is already using the socket, I get results, but /tmp/podman.sock is not one of them
lsof | grep tmp
When I check for the port of the SSH command above to see which PID is using that port, I get a result:
lsof -ti:53136
That PID however is the podman VM. If I kill the PID, the VM is dead as well. Starting is again results in the same state it seems
I am using VS Code for development. After running the server as usually using npm start command (which was set up to run nodemon and the main 'app' file) I closed the terminal.
I thought that when terminal is shut down nodemon get shut down along with the terminal. Evidently this is not so as when I attempt to run npm start in the new terminal it throws an error that the port I set up my server to listen to is already in use.
Is it possible to see what servers are running currently and which ports they are listening to?
If there is no such command to list the currently running servers is there any way to shut down the running servers on the local machine without shutting down the laptop I am working on?
By the way everything mentioned above is being done on local machine and no remote server is used. Thank you in advance.
If you are on a Linux box you can run this to get the PID of any process running on that port:
Linux:
netstat -tnlp | grep {{PORT}}
This will likely find multiple lines since the number of the {{PORT}} value might show up in a PID, IP address, etc., so look through the list to find what you're looking for. The PID and process name will show up on the far right column of the result.
Example for Linux:
# netstat -tnlp | grep 443
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 14384/nginx: master
The column on the right (14384/nginx: master) is the PID of that process, and the process name. Once you have the PID you could do a kill {{PID}} to kill that process.
The Mac version of netstat is different, and doesn't display the PID (at least not that I can tell), and I'm not sure if there's a way to do the same thing on a Windows box.
I am using Appium version V1.15.0 and have already start the server successfully with the default Host: 0.0.0.0 and Port: 4723
But now when i try to start the server it shows me this error "Error Starting Appium server: listen EADDRINUSE 0.0.0.0:4723"
I have tried to solve this issue by changing the port but could not find any solution.
Suggest me if you guys have any better solution.
I have found the solution. After restarting my computer, i could successfully run the Appium server.
If anyone face the same problem. Please follow below steps:
1. Check if the port is listening to any other services.
Open command prompt: Type netstat -a -b
Either kill that service or try with different port.
If both not working then restart your machine.
This way i have solved this problem.
If EADDRINUSE, Address already in use is the issue,
do
ps aux | grep node
to get the process ids.
Then:
kill -9 PID
Doing the -9 on kill sends a SIGKILL.
That because port 4723 has been used.
We gonna find which process using it
sudo lsof -i :4723
input your Mac user password, press Enter and the result will similar to
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
AppX 68286 huyck 65u IPv4 0x31233f2022a17f56 0t0 TCP *:4723 (LISTEN)
that mean AppX with PID 68286 is using this port
And we are gonna kill it (replace 68286 with your PID)
sudo kill -9 68286
Another easier way, restart the machine could solve this problem
Hope this helps!
The following solution on windows worked for me
C:\Users\username> taskkill /F /IM node.exe
SUCCESS: The process “node.exe” with PID 13992 has been terminated.