This isn't a Tcl-specific question; I just feel comfortable with
this crowd (if not always with lists.sf.net).
I suspect the Macintosh is protecting me from myself--not allowing
traffic through on some ports. I've got "Firewall Off" (System
Preferences/Network/Sharing/Firewall) for these experiments, al-
though I generally run with it. Here's the heart of my
observations: although I've done
and received the expected confirmation
access control disabled, clients can connect from any host
/usr/X11R6/bin/xterm -display localhost:0
shows up fine,
/usr/X11R6/bin/xterm -display 22.214.171.124:0
consistently tells me
/usr/X11R6/bin/xterm Xt error: Can't open display: 126.96.36.199:0
--but only when X is active.
Also, when I set up a simple TCP/IP service on a high port, and
try to reach 188.8.131.52, my connection's refused. Again, going
telnet localhost 5110
behaves as expected.
What am I missing?