Child pages
  • Rules

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

SNMP Enterprise54006
Mac Address26432
SNMP OID10897
Custom422
Total99757


All these rules were previously hard coded into the application codebase. As a result, we have deleted many thousands of lines of code! We have still more to introduce, but this is a start (smile)

UPDATE - With the release of 3.2.2, we no longer store ~100,000 rules in the database. This was fine on my test device (a core i7, 16GB memory and Samsung 860 NVMe), but in practice was causing customers servers to choke.

As per the Release Notes for 3.2.2 -

So, that was a ride... In testing our new Rules feature worked a treat. In practice, not so much. Most servers (ie, not mine) can't cope with loading the rule set, even if we break it down to smaller chunks, when processing multiple devices. What to do? What to do? Well we've taken a small step back. Rules still exist as a feature, and they still work a treat. But instead of inserting 100,000 Rules into the database, we've split them up into four distinct files and implemented them as code only. Hence, no loading all 100,000 Rules, decoding JSON and running them against a device. Now we just load the files and run the statements. Much, much faster and more memory efficient. No load on MySQL, and hence the CPU also drops. No populating a massive recordset and hence the memory drops. The not so good thing - these are no longer editable in the GUI. But it's not the end of the world. You can still make Rules as you see fit and they will be run after the "default" rules (those in code), hence you can override the "default" rules. So we don't lose much, but we gain a LOT of performance. We also added a few new Rules for Mac Models.

For those curious, the "new" files that replace the Rules are:

FileDescription
/open-audit/code_igniter/application/helpers/mac_helperMatches MAC addresses to manufacturers.
/open-audit/code_igniter/application/helpers/mac_model_helperMatches Apple manufacturer codes to models (stored in system.manufacturer_code).
/open-audit/code_igniter/application/helpers/snmp_model_helperMatches the device's SNMP OID to a model and type.
/open-audit/code_igniter/application/helpers/snmp_model_helperMatches the devices's SNMP OID to the manufacturer.


And of course you are free to add or modify the rules as you see fit. If you have a device with an SNMP OID that doesn't match a model already in the database file - now you can add it easily. No more waiting for us to provide a patch and add it to the codebase code base for you.

When you create a Rules entry, you will need to provide a name and a list of inputs and outputs. The inputs and outputs are stored as JSON arrays within the database.

...

You can add and remove inputs and outputs as required.

Image RemovedImage Added

Viewing Rules Details

...

Because there are so many rules (near one hundred thousand), paging through them is unrealistic. We still retrieve the default number of entries as per the configuration item, however there is a search box at the top of the panel. Use this to search through the name, description, inputs and outputs to refine the list and find what you're looking for. There is also a button on the panel header that will show you all the rules you have created or edited. See below.

Image RemovedImage Added


Database Schema

...