[.ethermon]
ETHERMON is a software implementation of an Ethernet line activity 
monitor. It uses any VAX/VMS DEC-compatible Ethernet interface to 
collect the data, and reports statistics in a form similar to the VMS 
MONITOR utility. It also can collect Ethernet data for post-processing 
by a user-supplied offline program (sample programs are supplied). ETHERMON 
can determine symbolic identifications of remote nodes automatically, or 
have them defined manually; these symbolic identifications are used 
in ETHERMON's displays and reports. ETHERMON can also recognize equipment 
other than DEC's on the Ethernet.

ETHERMON.COM is the build file; the documentation is stored in the files
ETHERMON.PS (PostScript), ETHERMON.LN0 (DEC LN03), ETHERMON.LPT ("dumb"
line printer or plain-text), and ETHERMON.MSS (Scribe manuscript source).


The [.spell] directory is a variant of the Vassar Spelling Corrector. At
our site, it was discovered a number of incorrect words had been placed
in the dictionary. The code and dictionaries here have been corrected. The
documentation is the same as older releases of the spelling corrector however
and is not complete here.
[.mtacc]
MTACC is a simple replacement for the VMS V5.x SYS$MTACCESS system 
service. Its initial reason for creation was to get around the "feature"
in HSC BACKUP where an unfriendly accessibility code was written in the 
VOL1 label on the tape, making the tape unmountable by VMS BACKUP. 
Sure, you could mount the first reel with /OVERRIDE=ACCESSIBILITY, but 
BACKUP won't do that when it mounts the 2nd through Nth reels. To get 
around this problem, this version of $MTACCESS allows dynamically 
ignoring any accessibility field constraints, using the SYSGEN dynamic 
parameter USERD1 to control whether or not the access control bypass 
is enabled or not (this allows the system managers to turn off the 
override after they are done with it, without having to reboot the 
system). Obviously, this could be extended to grant this override 
automatically to someone holding a certain identifier or privilege 
rather than permitting everyone in the world to bypass accessibility 
controls, but, since our shop doesn't use any sort of complicated tape 
control, it wasn't necessary to do anything complication to get the job 
done (hence the quick-and-dirty approach).

Note that this program was built by using SYS$EXAMPLES:DOD_ERAPAT as a 
template and replacing the SYS$ERAPAT code with code analyzed from the 
original running $MTACCESS service.

Feel free to extend this simple hack any way you like. Enjoy!

Andrew Pavlin
General Electric Co.
Ocean & Radar Systems Department
Syracuse, NY 13221
phone: (310 456-1875
email: pavlin@syr.ge.com
[.SNMPsnop]
SNMPSNOOP is a quick-and-dirty little program for dumping everything a 
remote Internet node knows in its SNMP database to your system in 
(supposedly) human-readable format. It is written in C, and will 
theoretically run under DEC UCX and VAX C (has not been tested); it 
has been tested to work under TGV MultiNet after compilation with Gnu C.
and with the standard Sun cc compiler under SunOS 4.1. Note that under 
MultiNet, it is possible to "hang" the program if a response packet gets 
lost in the Internet (the MultiNet socket library does not support the 
BSD select call, so a timed-out wait for the response message cannot be 
done).

The program is invoked as a DCL foreign command. Once it is started, it 
reads one or two parameters from the command line; the first (required) 
is the target host to interrogate (either numeric or symbolic host 
address), the second (optional) is the SNMP community name to use for 
the query (defaults to "public"). The program then connects to the 
local Internet software (the linker options file needed for VAX/VMS 
only is set up for TGV MultiNet) for a UDP connection, then starts 
sending SNMP GetNextReq packets to the specified remote host and waiting 
for the replies. The replies are formatted and displayed on standard 
output. The program continues to query until a timeout occurs (except 
under MultiNet) or until an error is returned (generally indicating no 
more SNMP object ID's known to this agent).

The utility is built in one of three ways:

  1) with TGV MultiNet:
            $ [g]CC/DEFINE=MULTINET SNMPSNOOP.C
            $ LINK SNMPSNOOP/OPTIONS

  2) with DEC UCX:
            $ [g]CC SNMPSNOOP.C
            $ LINK/EXE=SNMPSNOOP SYS$INPUT:/OPTIONS
            SNMPSNOOP,SYS$SHARE:VAXCRTL/SHAREABLE

  3) under SunOS:
            % cc snmpsnoop.c
            % mv a.out snmpsnoop

  4) presumably, under Ultrix (untested):
            % cc -Dsun snmpsnoop.c
            % mv a.out snmpsnoop

After compiling and linking under VMS, a foreign command must be defined:

            $ SNMPSNOOP :== $disk:[dir]SNMPSNOOP

Under any of the operating systems, the utility is then invoked as:

            $ SNMPSNOOP target [community-name]
            % snmpsnoop target {community-name}

This little utility is nice for testing what SNMP capability you have in 
your hosts before spending oodles of money on an SNMP-based network 
management console, and just general debugging. Beware though: some 
hosts can be VERY verbose in the quantities of replies they send back!

Andrew Pavlin
Ocean & Radar Systems Department
General Electric Co.
Syracuse, NY 13221
phone: (315) 456-1875
enail: pavlin@syr.ge.com