In this second part, I offer another solution for collecting DNS client query statistics on the fly using commercial off-the-shelf tools that will provide a bit more flexibility.
OVERVIEW
In this blog article, I explore a different way of gathering and reporting DNS Client Resolver statistics. In this post, I use a combination of Open Source Software and commercial off-the-shelf software in rolling a solution to build a list of DNS Top Talkers. In this second part, we continue to rely on DNS query logging, but instead of harvesting log data by downloading and parsing through Infobl...
A common task for decommissioning or moving a name server is figuring out which clients are querying our particular name server. In this article, I discuss how you can parse syslog messages and build a DNS Top Talkers list.
OVERVIEW
I recently worked with a customer on a project to help them decommission an Infoblox DNS appliance from their Grid. They needed the device to be removed from "play" immediately and there was very little time to accomplish the task. Our first task was to determine the following:
- What IP addresses were querying the DNS?
- What was the volume of DNS quer...
Eight (8) Log::Log4perl recipes that can be used to enhance debugging, reporting and visibility of your Perl scripts.
The Log::Log4perl is a Perl logging API port of the Log4J Java logging API. It's very comprehensive and is used in a large number of the scripts, tools, and applications that have been developed by Netlinx, Inc. In this article, we provide recipes for the following:
- Initializing Log4perl with a config file vs in-line
- Output messages to file and screen using appenders
- Log events and messages to a database
- Logging messages to Syslog
- Have different applications...