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#1 2022-11-12 10:42:31

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,458

[SOLVED] Wrong process identified as listening on a port.

I think I never faced something like that.
The system says dolphin is listening on 11213, but I know it is not.
So I kill dolphin to see what happens, and system finally answers correctly.

(!)

What the heck is happening here?

koko@Gozer# netstat -anpt|grep 11213
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 xyz.xyz.zzz.163:11213   0.0.0.0:*               LISTEN      75004/dolphin       
tcp        0      0 xyz.xyz.xyz.210:11213   0.0.0.0:*               LISTEN      75004/dolphin       
tcp        0      0 100.74.10.196:11213     0.0.0.0:*               LISTEN      75004/dolphin       
tcp        0      0 127.0.0.1:11213         0.0.0.0:*               LISTEN      75004/dolphin       
tcp        0      0 192.168.117.20:11213    0.0.0.0:*               LISTEN      75004/dolphin       
tcp        0      0 xyz.xyz.xyz.200:11213   0.0.0.0:*               LISTEN      75004/dolphin       
tcp        0      0 192.168.11.1:11213      0.0.0.0:*               LISTEN      75004/dolphin       
tcp        0      0 xyz.xyz.zzz.163:11213   66.115.165.230:54054    ESTABLISHED 75004/dolphin       
tcp       84      0 xyz.xyz.zzz.163:11213   87.249.132.181:53487    CLOSE_WAIT  75004/dolphin       
tcp        0      0 xyz.xyz.zzz.163:11213   91.248.27.164:32090     ESTABLISHED 1482864/qbittorrent 
tcp       84      0 xyz.xyz.zzz.163:11213   143.244.48.197:13920    CLOSE_WAIT  75004/dolphin       
tcp        0      0 xyz.xyz.zzz.163:11213   154.6.93.3:33527        ESTABLISHED 1482864/qbittorrent 
tcp6       0      0 ::1:11213               :::*                    LISTEN      75004/dolphin       
tcp6       0      0 fe80::6600:6aff:f:11213 :::*                    LISTEN      75004/dolphin       
tcp6       0      0 fe80::b283:feff:f:11213 :::*                    LISTEN      75004/dolphin       
tcp6       0      0 fe80::e50c:aa6e:d:11213 :::*                    LISTEN      75004/dolphin       
tcp6       0      0 fe80::222:b0ff:fe:11213 :::*                    LISTEN      75004/dolphin       
tcp6       0      0 fe80::287:24ff:fe:11213 :::*                    LISTEN      75004/dolphin       
tcp6       0      0 fe80::222:b0ff:fe:11213 :::*                    LISTEN      75004/dolphin       

[11:37:17]  cd ~
koko@Gozer# killall dolphin

[11:37:49]  cd ~
koko@Gozer# netstat -anpt|grep 11213
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 xyz.xyz.zzz.163:11213   0.0.0.0:*               LISTEN      1482864/qbittorrent 
tcp        0      0 xyz.xyz.xyz.210:11213   0.0.0.0:*               LISTEN      1482864/qbittorrent 
tcp        0      0 100.74.10.196:11213     0.0.0.0:*               LISTEN      1482864/qbittorrent 
tcp        0      0 127.0.0.1:11213         0.0.0.0:*               LISTEN      1482864/qbittorrent 
tcp        0      0 192.168.117.20:11213    0.0.0.0:*               LISTEN      1482864/qbittorrent 
tcp        0      0 xyz.xyz.xyz.200:11213   0.0.0.0:*               LISTEN      1482864/qbittorrent 
tcp        0      0 192.168.11.1:11213      0.0.0.0:*               LISTEN      1482864/qbittorrent 
tcp        0      0 xyz.xyz.zzz.163:11213   66.115.165.230:54054    ESTABLISHED 1482864/qbittorrent 
tcp        0      0 xyz.xyz.zzz.163:11213   91.248.27.164:32090     ESTABLISHED 1482864/qbittorrent 
tcp        0      0 xyz.xyz.zzz.163:11213   154.6.93.3:33527        ESTABLISHED 1482864/qbittorrent 
tcp6       0      0 ::1:11213               :::*                    LISTEN      1482864/qbittorrent 
tcp6       0      0 fe80::6600:6aff:f:11213 :::*                    LISTEN      1482864/qbittorrent 
tcp6       0      0 fe80::b283:feff:f:11213 :::*                    LISTEN      1482864/qbittorrent 
tcp6       0      0 fe80::e50c:aa6e:d:11213 :::*                    LISTEN      1482864/qbittorrent 
tcp6       0      0 fe80::222:b0ff:fe:11213 :::*                    LISTEN      1482864/qbittorrent 
tcp6       0      0 fe80::287:24ff:fe:11213 :::*                    LISTEN      1482864/qbittorrent 
tcp6       0      0 fe80::222:b0ff:fe:11213 :::*                    LISTEN      1482864/qbittorrent 

[

Last edited by kokoko3k (2022-11-12 13:15:57)


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#2 2022-11-12 11:23:15

astralc
Member
Registered: 2022-09-17
Posts: 127

Re: [SOLVED] Wrong process identified as listening on a port.

It is a bug in qbittorrent, I think, as I ecounter it (also with smplayer) - processes opened from qbittorrent 'use' the port.

searched in their issue -  this bug: https://github.com/qbittorrent/qBittorrent/issues/10312

Last edited by astralc (2022-11-12 11:24:06)

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#3 2022-11-12 13:15:20

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,458

Re: [SOLVED] Wrong process identified as listening on a port.

Thay explain why sometimes when I restart it, it fails to listen to its ports.
Wow, one can never stop learning, thanks!

Last edited by kokoko3k (2022-11-12 13:15:29)


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