Disable avahi daemon on Asus RT-AC68U (as it is consuming 50% CPU)

[Avahi Hater]

Greetings all

Recently we've bought the brand new Asus RT-AC68U for the our small office.
During the last week I noticed that CPU load for the core #1 is always 100% (screenshot).

I logged in via ssh and run the "top" command. It is constantly showing avahi-daemon on top, eating up 50% of CPU:

  PID  PPID USER     STAT   VSZ %MEM CPU %CPU COMMAND
 1180     1 admin    R    22348  8.7   0 49.5 avahi-daemon: running [RT-AC68U-DC98.local]

And I find it quite irritating.

From what I learned, it's some feature that is absolutely of no use for me.
There is an old post saying "there is no harm in leaving it running". Well, now it does considerable harm and want to turn it off completely. How to do that?

Firmware Version:3.0.0.4.380_7378
Please let me know if you need any other information.

 

[Jack Yaz]

Greetings all

Recently we've bought the brand new Asus RT-AC68U for the our small office.
During the last week I noticed that CPU load for the core #1 is always 100% (screenshot).

I logged in via ssh and run the "top" command. It is constantly showing avahi-daemon on top, eating up 50% of CPU:

  PID  PPID USER     STAT   VSZ %MEM CPU %CPU COMMAND
 1180     1 admin    R    22348  8.7   0 49.5 avahi-daemon: running [RT-AC68U-DC98.local]

And I find it quite irritating.

From what I learned, it's some feature that is absolutely of no use for me.
There is an old post saying "there is no harm in leaving it running". Well, now it does considerable harm and want to turn it off completely. How to do that?

Firmware Version:3.0.0.4.380_7378
Please let me know if you need any other information.

https://www.snbforums.com/threads/what-is-the-avahi-daemon-for.37760/#post-310909

Try the script provided there to kill avahi and bind it to a non-executable path

 

[Avahi Hater]

https://www.snbforums.com/threads/what-is-the-avahi-daemon-for.37760/#post-310909
Try the script provided there to kill avahi and bind it to a non-executable path

Hi Jack!

Looks like I overlooked this part.
There is no /jffs/scripts/ directory on my router so I thought it won't work for me.
But I just run it manually and got this daemon killed.

Thanks a ton!

 

[Jack Yaz]

You'll need to enable jffs scripting in the UI (System tab, I think). https://github.com/RMerl/asuswrt-merlin/wiki/User-scripts

Running manually will work but if you reboot, it'll come back. Creating an init-start script will ensure it doesn't return on reboot.

 

[Avahi Hater]

You'll need to enable jffs scripting in the UI

Thank you.

I just realized that I am likely posting in the wrong section.
I am using the vanilla firmware whereas this sub-forum is related to a customized one. It's hard to sort these things out at first, so I got confused.
Anyway, I suppose it's the reason why I cannot find such an option in my interface, nothing that mention jffs at all.

Edit: At first I posted it into Merlin sub-forum and now it has been moved by mods to the proper section.

 

[RMerlin]

Greetings all

Recently we've bought the brand new Asus RT-AC68U for the our small office.
During the last week I noticed that CPU load for the core #1 is always 100% (screenshot).

I logged in via ssh and run the "top" command. It is constantly showing avahi-daemon on top, eating up 50% of CPU:

  PID  PPID USER     STAT   VSZ %MEM CPU %CPU COMMAND
 1180     1 admin    R    22348  8.7   0 49.5 avahi-daemon: running [RT-AC68U-DC98.local]

And I find it quite irritating.

From what I learned, it's some feature that is absolutely of no use for me.
There is an old post saying "there is no harm in leaving it running". Well, now it does considerable harm and want to turn it off completely. How to do that?

Firmware Version:3.0.0.4.380_7378
Please let me know if you need any other information.

What is your local domain? Make sure it's not something *.local, as this extension is reserved. Avahi should normally not consume any CPU.

 

[sfx2000]

What is your local domain? Make sure it's not something *.local, as this extension is reserved. Avahi should normally not consume any CPU.

Exactly... avahi is very lightweight normally.

Quick tip - Windows Server, if not bound to a top level domain, defaults to .local - and yes, this can cause problems..

MS has a tech note on that item... can't find it at the moment.

 

[Avahi Hater]

What is your local domain? Make sure it's not something *.local, as this extension is reserved. Avahi should normally not consume any CPU.

Thank you.
Actually, recently I set up not a server but just an ordinary Linux workstation within the same local network, which TLD indeed was .local.
So I just made it something different and will check avahi-daemoin after rebooting the router.

 

[sfx2000]

Thank you.
Actually, recently I set up not a server but just an ordinary Linux workstation within the same local network, which TLD indeed was .local.
So I just made it something different and will check avahi-daemoin after rebooting the router.

Using .lan is a good choice for an arbitrary TLD...