[Info-vax] USB/DB9 terminal converter for RX2660

[Stephen Hoffman]

On 2016-06-04 00:30:26 +0000, Jan-Erik Soderholm said:

> Was that in the BaseStar time frame?

At least some of what John was using wasn't BASEstar.

PLCs were and probably sometimes still are rather demented devices, 
unfortunately.   The old serial protocols that were common with PLCs 
from the 1980s into the 1990s (and that undoubtedly still lurk at some 
sites) were often staggeringly bad protocol designs and equally bad 
implementations, as were some of the early Ethernet protocols.   MAP 
and TOP helped (and variously hindered) with the way PLC vendors were 
thinking about these areas, but things have moved on substantially 
since then.   Most PLCs and PLC software from that era tends to be 
prime fodder for Stuxnet or Irongate or such, too.  Some of what I'm 
familiar with was wide open to these and other sorts of shenanigans, 
unfortunately — more than a little of that old software was 
DECnet-based too, and — in this era — that's just as bad as using 
telnet.

> My point is that most sites benfits to hook up their concoles for 
> network access.

For this thread, that'd usually via iLO, DRAC or other such when 
discussing servers, if the sites are not using very old hardware.  
Preferably with access via TLS, ssh or SNMPv3, and not via telnet, LAT 
nor SNMPv2, etc.


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