On Fri, Oct 25, 2013 at 2:11 PM, Gabriel Holder <[email protected]> wrote:
> Here is my decoder file:

This is local_decoder.xml correct?

> <!-- Custom decoder for example -->
>
>   <decoder name="php-app">
>      <prematch>^\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d</prematch>
>   </decoder>
>
>   <decoder name="php-app-alert">
>      <parent>php-app</parent>
>      <regex offset="after_parent">^ (\d+.\d+.\d+.\d+) PHP app</regex>
>      <order>srcip</order>
>   </decoder>
>
> Rules:

I'm guessing you put these in local_rules.xml. Do you have nested <group tags?

> <group name="syslog,php-app,">
>   <rule id="110000" level="0">
>       <decoded_as>php-app</decoded_as>
>           <description>PHP custom app group.</description>
>             </rule>
>
>   <rule id="110001" level="10">
>       <if_sid>110000</if_sid>
>           <srcip>127.0.0.1</srcip>
>               <match>Fatal</match>
>                   <description>php file edited?</description>
>                     </rule>
> </group>
>
> Logtest gives an error:
> 2013/10/25 14:10:58 ossec-testrule: INFO: Reading local decoder file.
> 2013/10/25 14:10:58 ossec-analysisd: Invalid decoder name: 'php-app'.
> 2013/10/25 14:10:58 ossec-testrule(1220): ERROR: Error loading the rules:
> 'rules_config.xml'.

These did not give me any errors. You didn't include log samples so I
can't test any further.

>
> All I want to do is monitor a specific file for a specific pattern (PHP
> Fatal Error) and alert when it happens.
>
>
> On Friday, October 25, 2013 1:51:26 PM UTC-4, dan (ddpbsd) wrote:
>>
>> On Fri, Oct 25, 2013 at 1:42 PM, Gabriel Holder <[email protected]>
>> wrote:
>> > I am brand new to Ossec and I am trying to monitor an agent's file
>> > /var/path/something/php.log.
>> >
>> > I know I have to setup a decoder and rules for this except for the life
>> > of
>> > me, I cannot figure any of this out.
>> > Ossec's documentation on accomplishing this is meh at best.
>> >
>>
>> I'll try to integrate this suggestion in the next update.
>>
>> > How can I setup the decoder/rules so that if the file gets edited with
>> > "PHP
>> > Fatal Error" I am notified?
>>
>> Start by using ossec-logtest to see how the log message is being
>> decoded already. You can add a decoder to
>> /var/ossec/etc/local_decoder.xml on the server if necessary.
>> Then write a rule in /var/ossec/rules/local_rules.xml (on the server
>> of course), possibly referencing the decoder the log message decodes
>> as.
>>
>> I'm not sure how much more help I can be without log samples.
>>
>> > I also cannot figure out WHERE ppl are getting their log lines.
>> >
>>
>> Log files generally.
>>
>> > Any help would be appreciated.
>> >
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