Help/Support Can't connect to port 23

[Joka 3.5k iPhone X 12.4]

So I tried connect to port 23 via iFunBox and this is the error I receive on PuTTY

Using username "root".
Josephs-iPhone:~ root# debugserver 127.0.0.1:23 --attach=855
debugserver-@(#)PROGRAM:debugserver  PROJECT:debugserver-320.2.89
 for arm64.
Attaching to process 855...
error: failed to attach process 855: (os/kern) invalid task
Exiting.
 

What am I doing wrong?

[0xSUBZ3R0 134.9k iPhone 6s Plus 12.1.1]

Run it with out pid first open port 

[Joka 3.5k iPhone X 12.4]

1 minute ago, MRS14T3R said:

Run it with out pid first open port 

Josephs-iPhone:~ root# debugserver 127.0.0.1:23
debugserver-@(#)PROGRAM:debugserver  PROJECT:debugserver-320.2.89
 for arm64.
Listening to port 23 for a connection from 127.0.0.1...
 

[0xSUBZ3R0 134.9k iPhone 6s Plus 12.1.1]

Yes now open port on ifunbox

[Joka 3.5k iPhone X 12.4]

Now what?

Just now, MRS14T3R said:

Yes now open port on ifunbox

Okay

[Ted2 39.1k iPhone 13 Pro 16.0 Donor]

lol folowed video?

[Joka 3.5k iPhone X 12.4]

1 minute ago, MRS14T3R said:

Yes now open port on ifunbox

So confused.

The port was 23. I changed it to 22, then back to 23 and now it's not even connecting lol

1 minute ago, Ted2 said:

lol folowed video?

Yup

[Goran 1.9k]

man, chech that you are not updated to laterst itunes... 12.7....
also what app is? hard reboot your phone rejb and restart pc... then try again...