after logging into a server, I used netstat to check out the ports of this server and wanted to find which port was communicating with meMy IP is 143.248.143.198  and my search results are like below:[kwagjj@James5 ~]$ netstat | grep 143.248.143.198tcp        0     52 James5:smakynet             143.248.143.198:49690       ESTABLISHED[kwagjj@James5 ~]$ netstat | smakynetsmakynet: Command not found.[kwagjj@James5 ~]$ netstat | grep smakynettcp        0      0 James5:smakynet             143.248.143.199:49573       ESTABLISHEDtcp        0      0 James5:smakynet             143.248.143.198:49690       ESTABLISHEDtcp        0      0 James5:smakynet             143.248.143.212:51070       ESTABLISHEDtcp        0      0 James5:smakynet             143.248.143.210:9693        ESTABLISHEDtcp        0      0 James5:smakynet             143.248.143.217:azeti       ESTABLISHEDtcp        0      0 James5:smakynet             143.248.143.216:51892       ESTABLISHEDtcp        0      0 James5:smakynet             143.248.143.210:10599       ESTABLISHEDI tried to see if James5:smakynet lead to some other port but it looks like my side of the port is only communicating with 'James5:smakynet'.Does anyone know what this 'smakynet' is?What does this do?I googled it but it didn't give me any proper info.
what is 'smakynet' in the netstat result?
networking;netstat
Whenever you do not recognize a port by name, you can grep for the name in /etc/services to see that the name is defined there. On my Linux systems, smakynet is TCP/UDP 122.grep smakynet /etc/servicesUse man netstat to learn about which switches can be used to reveal more information. In this case, use switches that will help find more information about process IDs.netstat -tulpn | grep smakynetNow you can see which process uses the port. You will get output like the following example.tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 1565/cupsdAbove, cupsd was opened with PID 1565; it is using TCP port 631.This should help to identify which program is using the port. I do not know why smakynet is listed in /etc/services; though, to hazard a guess, it could be an ancient protocol or perhaps it was registered with IANA and never developed.So, which program did you find that uses the smakynet port on which O/S?