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Two or more channels are needed for PMDF on UNIX to communicate using UUCP. A single common channel is used for all incoming messages, no matter from what system they originated. An additional channel is needed for each system connected via UUCP. The incoming message channel is slave-only and should never have any messages queued to it. The outgoing message channels are master-only.
25.2.1.1 Adding the Channel to the Configuration File
The entry for the incoming message channel should look like this (do
not use a different channel name):
uucp_gateway uucp slave uucp-gateway |
Entries for outgoing UUCP message channels will vary depending on the name of the system to which the channel connects. For example, suppose the remote system's official name is YMIR.CLAREMONT.EDU and its UUCP name is simply ymir. A channel definition for this system might be:
uucp_ymir uucp master ymir-uucp ymir.claremont.edu ymir |
In this case the name of the remote host to which the channel connects is derived from the channel name. When a second channel connecting to the same remote host is needed, it can be defined as follows:
uucp_second uucp master daemon ymir ymir-second ymir.claremont.edu ymir |
In this case the daemon
channel keyword has been used to explicitly specify the name of the
remote system to which the channel connects.
If the official name and UUCP name are the same, ymir, the entry can be simplified:
uucp_ymir uucp master ymir |
Rewrite rules should be set up to point at the proper outgoing channel using the channel's official host name.
25.2.1.2 Setting Up the Master Program
Once the UUCP channels have been added to the configuration file, the
UUCP master program should be ready to use. No additional log, script
or option files are needed.
25.2.1.3 Setting Up the Slave Program
The PMDF uucp_slave
program is used to replace the rmail
program on UNIX. You should rename the original rmail
program to, e.g., rmail.org
, and create a symbolic link that links rmail
to /pmdf/bin/uucp_slave
as follows:
# cd /usr/bin # mv rmail rmail.org # ln -s /pmdf/bin/uucp_slave rmail |
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