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-rw-r--r--doc/rsyslog_conf.html8
1 files changed, 6 insertions, 2 deletions
diff --git a/doc/rsyslog_conf.html b/doc/rsyslog_conf.html
index 11f80a2d..03b15c17 100644
--- a/doc/rsyslog_conf.html
+++ b/doc/rsyslog_conf.html
@@ -505,7 +505,7 @@ once they are implemented, it can make very much sense
</tr>
<tr>
<td>regex</td>
-<td>Compares the property against the provided regular
+<td>Compares the property against the provided POSIX regular
expression.</td>
</tr>
</tbody>
@@ -547,7 +547,11 @@ code), this can be done easily by:</p>
<p>This filter will match when the message contains the string
"ID-4711". Please note that the comparison is case-sensitive, so it
would not match if "id-4711" would be contained in the message.</p>
-<p>Getting property-based filters right can sometimes be
+<p><code><b>:msg, regex, "fatal .* error"</b></code></p>
+<p>This filter uses a POSIX regular expression. It matches when the
+string contains the words "fatal" and "error" with anything in between
+(e.g. "fatal net error" and "fatal lib error" but not "fatal error" as
+two spaces are required by the regular expression!).</p><p>Getting property-based filters right can sometimes be
challenging. In order to help you do it with as minimal effort as
possible, rsyslogd spits out debug information for all property-based
filters during their evaluation. To enable this, run rsyslogd in