[plug] uucp polling question

[brian coleman]

Luigi,

Depending on the version of UUCP you are using the actual implementation 
varies but usually you will find 4 entries in the crontab for UUCP. Two 
of these relate to housekeeping (ie cleaning up logs after a certain 
number of days, cleaning up uucppublic, etc) and two of them relate to 
polling. The two related to polling are generally called something like 
"uudemon.poll" and "uudemon.hour".

"uudemon.poll" examines the "Poll" file in "/usr/lib/uucp" or 
"/usr/lib/uucp/hdb" or wherever and posts a entry to the queue for a 
particular site if it is scheduled for a poll at the current hour and 
the is no outstanding requests for the site.

"uudemon.hour" examines the UUCP status files to see if there are 
outstanding requests for a particular site, if there is an outstanding 
request and it is within the allowed time for contacting the site it 
then attempts to connect to the site.

The trick to getting multiple versions of uusched and therefore uucico 
running at the same time is the make a number of entries in crontab for 
the same time which should be a minute or two after the "uudemon.poll" 
entry.

If you wish to have multiple polls within the same hour you only have to 
make multiple entries for "uudemon.poll" and "uudemon.hour" at whatever 
intervals you require.

Incidentally I make a lot of use of UUCP for file transfer over TCP/IP 
networks as it provides a secure mode of unattended operation which 
standard ftp cannot match.


Brian Coleman



>To anyone,
>Polling of sites via uucp is usually accomplished via
>a script that is invoked by cron. This is not my problem.
>My problem arrises in that the scripts supplied with the
>system will only poll using one list at a time ie
>it will make a list of sites requiring to be polled and
>then tries to contact them. It will call up using different
>modems but what I need is to parallel process ie to use
>more then one modem at a time.
>Is there a standard version of the polling scripts for this?
>I just don't want to have to reinvent the wheel when I am
>sure there are thousands of sites out there doing this now.
>
>Thanks in advance for any pointers to scripts.
>
>-- 
>Thanks Luigi

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