* The host is
the name of the host that produced this information (note that this can differ from
the name of the host on which the logfiles are kept).?? The sendmail (or whatever you
specified withth e -L command-line switch) is literal. Because of the LOG_PID argument
that is given to openlog(3) by sendmail (?§14.3.1 on page 514), the PID of the
invocation of sendmail that produced this information is included in square brackets.
Finally, eachline includes the qid queue identifier (?§11.2.1 on page 396) that
uniquely identifies each message on a given host.
This initial information is followed by a comma-separated list of what=value equates.
Which syslog equate appears in which line depends on whether the line documents
the sender or the recipient and whether delivery succeeded, failed, or was deferred.
* Note that the year is absent. If you need to archive logfiles for multiple years, you will need to modify the
dates inside the files, store files in directories named after years, or use some other similar solution.
?? When one host sends the message to another host for handling, and when that later host also sends the message
to yet another host, the final host will show the name of the middle host, not the originating host. In
general, it is not wise to relay messages when originating host information is of concern.
This is the Title of the Book, eMatter Edition
Copyright ?© 2007 O??™Reilly & Associates, Inc.
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