Thanks to Sean's suggestion to use the (unknown to me) AIX firewall
built into OS/2, I am opening up my telnet port again. 

Not like I have a ton of callers, but for those 1-2 a year, they can
connect to a real TG/2 system again  

At first I was having trouble figuring it out but then I started to
grasp the concept again of how iptables type stuff works and got it
working. Although I am doing it the opposite of how I probably should,
since it only has a few ports forwarded to it, the box should be fine. 

I am blocking specific IPs first, then allowing everything. 

This seemed like a better idea than deny everything, block by IP, then
permit specific ports (binkd/telnet/vnc/ftp/etc). 

Kev

 
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