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1992-12-04
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3KB
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PING: send pings to specified hosts and waits for an echo
ver 0.20 - (c) BCMI 1992
***FREEWARE*** you may copy and share this program as long as no money is
involved (except for media and shipping expenses)
Object:
- PING is an MHS gateway that sends dummy messages (pings) to
a list of target hosts and waits for an echo.
- PING holds statistical data for each target host: average
delay between sending the ping and receiving the echo, and number
of hops between the pinging host and the target host.
- PING warns the MHS administrator if no echo is received from a
target host after four times the average echo delay for this host.
PING was developped to enhance MHS host communication reliability
by detecting when a distant host is down.
Syntax:
Install PING as an MHS gateway with the PGINST batch file, and
run PING manually to display statistical information.
To install PING as an MHS gateway, invoke the PGINST batch with
the name(s) of the MHS host(s) you want to test automatically.
For example "PGINST FARHOST" will install the PING gateway and
test host FARHOST.
To add or delete hosts to be tested once PING has been installed,
run the MHS directory manager and add or delete hosts names in the
"Gateway commands" field for the PING gateway.
Here is an example of a statistical output displayed when manually
invoking the PING program (after the gateway has been installed and
run at least once):
Host name : FARHOST
Last ping sent : Fri Sep 11 16:38:53 1992
Average delay : 36 minutes
Hops (one way) : 2
Warning threshold: 3 hours
The PING gateway can be used in conjunction with the MHS Scheduler
from Infinite Technologies or other equivalent utilities, to be
invoked for example once a day. In such case, make sure that the
PING gateway has a threshold of 1 message.
Files:
PING.EXE copied in MHS/MAIL/GATES/PING/PUBLIC as INPOST.EXE
PING.EXE copied in MHS/EXE
PING.DAT created in MHS/MAIL/PUBLIC by the gateway
Internals:
A dummy user routing is created to route echoes to the gateway.
PING has only been tested with MHS 1.5 hosts.
Host CSERVE does not echo any ping (stealth hub?)...
Changes:
Version 0.20: added support for FS/VOL in MV variable
Version 0.10: initial release
Author:
François Bergeon
BCMI
3 rue des Sports
27380 Charleval FRANCE
MHS: FBERGEON @ GROUPMNT
Thanks to:
Brett Warthen (Infinite Technologies) for the idea...