Good evening!

It would be great if you could consider adding tcpdump as a plugin or integrating it into the Unraid operating system or toolset. It would be incredibly helpful for troubleshooting network issues. For example, I’m currently facing a connection issue where Sonarr can’t connect to SABnzbd, despite both being on the same network and specific interface for my Docker containers. Being able to trace the packets would give me valuable insights into the problem.

This would be quite tricky because some of those docker networks may not be accessible from the main unraid. Also, tcpdump needs interfaces in special ("promiscuous") mode, again, some of those pseudo LANs may not offer this mode.

 

But I agree, tcpdump is a very helpful tool for network problems. But it also is a complicated one, not suitable for the normal user... I don't believe they will ever include it into the os.

 

But you can use either nerd-tools (as long as it still exists) or drop the package manually into the /boot/extra folder to get it installed automatically after a reboot.

Hey ximian!  I use unraid to host things for my lab studies and also need to know whats going on on the the wire.  Although tcpdump is not available, tcptrack is.  It's new to me too, and it uses the same filter syntax as tcpdump so it should get you back up and running quickly.  You can install it via un-get

un-get install tcptrack

After the install, just make sure it put the package in your /boot/extra directory so that it installs on boot.

 

Here is a simple example of me sniffing for port 555 from host 192.168.1.133

tcptrack -i br0 "src 192.168.1.133 and port 555"

 

I hope this helps!

later

Maybe this is a noob question, but what is "un-get".

root@nas:~# un-get install tcptrack

-bash: un-get: command not found

root@nas:~#

I also need to sniff network problems.

1 hour ago, galgier said:

Maybe this is a noob question, but what is "un-get".

GitHub

GitHub - ich777/un-get

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