'strange' traffic on my openhab2 system

Hi,

I’m running OH2 on a RPI3 with OH2b4 installed.
Using netstat (and iftop) I found an interesting ip address which I cannot resolve :

tcp6 0 0 192.168.2.20:60110 li464-188.members:https TIME_WAIT
tcp6 0 0 192.168.2.20:60106 li464-188.members:https TIME_WAIT
tcp6 0 0 192.168.2.20:60094 li464-188.members:https TIME_WAIT
tcp6 0 0 192.168.2.20:60090 li464-188.members:https TIME_WAIT
tcp6 0 0 192.168.2.20:60096 li464-188.members:https TIME_WAIT
tcp6 0 0 192.168.2.20:60100 li464-188.members:https TIME_WAIT
tcp6 0 0 192.168.2.20:60092 li464-188.members:https TIME_WAIT
tcp6 0 0 192.168.2.20:60112 li464-188.members:https TIME_WAIT
tcp6 0 0 192.168.2.20:60104 li464-188.members:https TIME_WAIT
tcp6 0 0 192.168.2.20:60102 li464-188.members:https TIME_WAIT
tcp6 0 0 192.168.2.20:60108 li464-188.members:https TIME_WAIT
tcp6 1 0 192.168.2.20:40898 192.168.2.82:9000 CLOSE_WAIT
tcp6 0 0 192.168.2.20:60098 li464-188.members:https TIME_WAIT
tcp6 0 0 localhost:49284 localhost:1883 ESTABLISHED
tcp6 0 0 localhost:37622 localhost:mysql ESTABLISHED

I can trace it to li464-188.members.linode.com but that is all.
I’ve seen this (li464-188.members) on other OH systems (using google) as well.

Does anyone has any clue of where it connects to and what it is doing ?

-ben

In case you are not aware TIME_WAIT indicates that the your host has closed this connection but is waiting for the peer and CLOSE_WAIT indicates the peer has closed the connection. These are basically (almost) dead connections that have not yet been cleaned up. Given the port numbers it would suggest that these were connections made from your host. This may occur if TCP suspects that there may still be packets en-route.

I ran a tcpdump filtering for li464-188.members.linode.com for 10 minutes, no hit.

Christian

Thanks but I wonder why my host would start a connection with this IP address.
It appears almost immediately after I restart RPI, so something tries to connect to an external server to do what ?
I will look into it more …

-ben

Which bindings are active in your setup?

you can relax it´s from my.openhab.org :slight_smile: