Article View: comp.sys.dec
Article #5434Re: "UNWELCOME.TXT" - a better WELCOME message (and dynamic!)
From: Zack Sessions
Date: Fri, 09 Jun 1989 19:41
Date: Fri, 09 Jun 1989 19:41
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2251 bytes
In article <452@marque.mu.edu> kcb@marque.UUCP (Kent Brodie) writes:
>one of the largest security "holes", as it were, is the fact that the
>default "welcome" message on VAX/VMS systems is just that-- it WELCOMES
>the user to the system. In the case of an unauthorized access to your
>precious system, the existance of this message can cause ALL SORTS of
>legal headaches, depending on your state/local laws.
> [text and command file deleted]
Kent, thanks for letting those of who were unaware of this legal loophole
know of it's existance, and for writing and debugging a command file to
help us coa. I installed it on all 9 of my VAXen. Works like a champ!
One one comment. The f$getsyi("nodename") lexical function gets it's
information from the SCSNODE sysgen parameter. If this value is null
then no value appears for nodename in the unwelcome message. A workaround
for system managers who do not need/want to assign an SCSNODE value for their
system is to get the value from the system logical SYS$NODE.
Replace the lines
$ lineone = " You are on node ''f$getsyi("NODENAME")' running " + -
"VAX/VMS version ''f$edit(f$getsyi("VERSION"),"TRIM")'. "
with the following lines
$ nodename = f$trnlnm("sys$node") - "_" - "::"
$ lineone = " You are on node ''nodename' running " + -
"VAX/VMS Version ''f$edit(f$getsyi("VERSION"),"TRIM")'. "
That fixes it up nicely.
Thanks again.
Zack Sessions | Utilizing the computing facilities
General Electric | at the University of North Carolina
Nuclear Fuels & Component Manufacturing| at Wilmington
Wilmington, NC |
"If it ain't broke, then don't fix it!"
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!gatech!mcnc!ecsvax!uncw!session From: session@uncw.UUCP (Zack Sessions) Newsgroups: comp.sys.dec,comp.os.vms Subject: Re: "UNWELCOME.TXT" - a better WELCOME message (and dynamic!) Keywords: security, legal loopholes, WELCOME, UNWELCOME Message-ID: <403@uncw.UUCP> Date: 9 Jun 89 19:41:55 GMT References: <452@marque.mu.edu> Reply-To: session@uncw.UUCP (Zack Sessions) Distribution: usa Organization: Math/Computer Science Department Lines: 41