On Thu, 07 Aug 2003 18:48:34 -0700, Gordon Messmer wrote
> Mike Vanecek wrote:
> > [EMAIL PROTECTED] root]# service portmap start
> > Starting portmapper: [ OK ]
> >
> > [EMAIL PROTECTED] root]# rpcinfo -p
> > program vers proto port
> > 100000 2 tcp 111 portmapper
> > 100000 2 udp 111 portmapper
> >
> > [EMAIL PROTECTED] root]# netstat -naup
> ...
> > udp 0 0 0.0.0.0:916 0.0.0.0:*
> > 21092/xinetd
>
> Testing indicates that portmap must be running when a portmap
> service starts in order for it to be registered properly. Portmap
> services won't re-register with a portmap that starts up later.
> You'd have to restart xinted after starting portmap to get valid data.
>
> Thats new info to me, but there you go.
Now I get the same results as you had before:
[EMAIL PROTECTED] root]# rpcinfo -p
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
391002 2 tcp 54878 sgi_fam
> > I have never found any use for portmapper, hence do not run it. Am I missing
> > something?
>
> Yes. Local RPC services use the portmapper.
>
> > I run sig_fam only because I have been told it improves the operation of some
> > apps. Despite my reading about it, I never have quite understood what it
> > really does. I am tempted to shut it down and see what happens.
>
> FAM is the File Alertation Monitor. It uses a kernel service to
> monitor files and directories for modifications, rather than poll(),
> select() or stat() the files/directories repeatedly.
>
> If your portmapper is running, and fam is registered with it, an
> open Nautilus window should immediately reflect any changes made to
> the files/directories it displays.
>
> Other GNOME applications use FAM as well. I believe that the text
> editor will use it to watch for changes to files it has open.
I find it interesting to note that the configuration of portmap and sig_fam
totally changes. Portmap now makes a tcp and udp connection. The xinetd
connection attributed to sig_fam now moves from a udp connection to a tcp
connection.
[EMAIL PROTECTED] root]# netstat -natup
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN
29966/portmap
tcp 0 0 127.0.0.1:54878 0.0.0.0:* LISTEN
29995/xinetd
udp 0 0 0.0.0.0:111 0.0.0.0:*
29966/portmap
Can't remember, but seems like these connections created a lot of packet
activity. I guess I will watch the logs for a while.
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