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| author | Rainer Gerhards <rgerhards@adiscon.com> | 2007-07-16 13:41:24 +0000 |
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| committer | Rainer Gerhards <rgerhards@adiscon.com> | 2007-07-16 13:41:24 +0000 |
| commit | 111ed295ead15226f0601a37c930ad52992056a5 (patch) | |
| tree | 1304148b46d0de46ad190b4f5e0733656ee294d2 /doc | |
| parent | d16264098402ef33e1e5441eb6884e7359ee8add (diff) | |
| download | rsyslog-111ed295ead15226f0601a37c930ad52992056a5.tar.gz rsyslog-111ed295ead15226f0601a37c930ad52992056a5.tar.xz rsyslog-111ed295ead15226f0601a37c930ad52992056a5.zip | |
added $DropMsgsWithMaliciousDnsPTRRecords option
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/rsyslog_conf.html | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/rsyslog_conf.html b/doc/rsyslog_conf.html index 262738a0..2171ec40 100644 --- a/doc/rsyslog_conf.html +++ b/doc/rsyslog_conf.html @@ -132,6 +132,15 @@ most</b></code></p> <p>Numbers are always in decimal. Leading zeros should be avoided (in some later version, they may be mis-interpreted as being octal). Multiple directives may be given. They are applied to selector lines based on order of appearance.</p> +<h2>DropMsgsWithMaliciousDnsPTRRecords</h2> +<p>Rsyslog contains code to detect malicious DNS PTR records (reverse name +resolution). An attacker might use specially-crafted DNS entries to make you +think that a message might have originated on another IP address. Rsyslog can +detect those cases. It will log an error message in any case. It this option +here is set to "on", the malicious message will be completely dropped from your +logs. If the option is set to "off", the message will be logged, but the +original IP will be used instead of the DNS name.</p> +<p><code><b>$DropMsgsWithMaliciousDnsPTRRecords on</b></code></p> <h2>Templates</h2> <p>Templates are a key feature of rsyslog. They allow to specify any format a user might want. They are also used for dynamic file name generation. Every output in rsyslog uses templates - this holds true for files, |