HELP! Mysterious socket 843/tcp listening on CURRENT system

[Xin Li]

On 9/15/15 00:06, O. Hartmann wrote:
> Hopefully, I'm right on this list. if not, please forward.
> 
> Running CURRENT as of  FreeBSD 11.0-CURRENT #3 r287780: Mon Sep 14 13:34:16
> CEST 2015 amd64, I check via nmap for open sockets since I had trouble
> protecting a server with IPFW and NAT.
> 
> I see a service (nmap)
> 
> Host is up (0.041s latency).
> Not shown: 998 filtered ports
> PORT     STATE SERVICE
> 843/tcp  open  unknown
> 
> and via sockstat -l -p 843, I get this:
> ?        ?          ?     ?  tcp4   *:843                *:*

Sounds like there is a kernel listener, wild guess -- what does rpcinfo
-p say?

Cheers,

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