--- title: "Master DNS Debug Parsing: A PowerShell Guide" description: "Unlock the secrets of DNS debugging with our definitive PowerShell guide. Achieve seamless DNS log parsing." canonical: "https://adamtheautomator.com/dns-debug-log-parser/" --- # Master DNS Debug Parsing: A PowerShell Guide > Unlock the secrets of DNS debugging with our definitive PowerShell guide. Achieve seamless DNS log parsing. Source: https://adamtheautomator.com/dns-debug-log-parser/ --- ATA Learning Tap to hide [ ATA Learning ](/) * [Home](/) * [Tutorials](/tutorials/) * [Instructors](/author/) * [Advertising](/advertising/) * [Recommended Resources](/resources/) * [About Adam](/about-adam/) Search for: * [](https://twitter.com/adbertram) * [](https://github.com/Adam-the-Automator) * [](https://www.linkedin.com/company/adam-the-automator-llc) * [](/feed/) ![Master DNS Debug Parsing: A PowerShell Guide](https://adamtheautomator.com/wp-content/uploads/2019/06/5d238ae5c824b514689ea550.jpg) # Master DNS Debug Parsing: A PowerShell Guide [![](https://secure.gravatar.com/avatar/d0b9d42e21e5622713f8b693aa5c0f9244d5f7dd200ed29b8398f52dee5de337?s=192&d=mm&r=g)Adam Bertram](https://adamtheautomator.com/author/adam-bertram/)18 June 20191 min. read Categories: [IT Ops](/category/it-ops/) Tags:[Microsoft DNS](/tag/microsoft-dns/)[PowerShell](/tag/powershell/) Table of Contents * [How to Build a DNS Debug Log Parser with PowerShell](#how-to-build-a-dns-debug-log-parser-with-powershell) One of the first things you should do when troubleshooting a problem like this is to enable [DNS debug logging](https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2003/cc759581\(v=ws.10\)?redirectedfrom=MSDN). But when you’re forced to look at the log debug logging creates, you’re in for a rude awakening. Make it easier by creating a DNS debug log parser script with [PowerShell](https://adamtheautomator.com/search/powershell)! Not a reader? Watch this related video tutorial! **_Not seeing the video? Make sure your ad blocker is disabled._** ## How to Build a DNS Debug Log Parser with PowerShell You’ve got a ton of different options to debug but in my case, I need more information regarding dynamic updates. This is what my configuration looks like on one of my DNS servers. ![DNS Debug Logging](https://adamtheautomator.com/content/images/2019/07/microsoft-dns-debug-log-script---dns-debugging.png) DNS Debug Logging When this is enabled, it will begin creating a log file at the file path you specify which looks like this: ![DNS Debug Log](https://adamtheautomator.com/content/images/2019/07/microsoft-dns-debug-log-script---dns-debug-log.png) DNS Debug Log The first row of marked out lines is the IP address and the last row is the DNS record it attempted to update. These were marked out for obvious reasons. Depending on the options you choose this log file can become enormous and isn’t in the easiest format to read. What if I want to filter out just a single IP or narrow it down by a certain timeframe? You can’t do that with the default log file. This is why I created a DNS debug log parser script with PowerShell. The script below takes this log file and parses it out into a nice CSV file that looks like this: ![PowerShellified DNS Debug Log](https://adamtheautomator.com/content/images/2019/07/microsoft-dns-debug-log-script---powershell-dns-debug-log.png) PowerShellified DNS Debug Log That looks a whole lot better, right? The script looks through the log file for any errors and parses out the date, IP, and the error, and places it into a nicely formatted CSV. It also excludes all of the DNS server IPs. For some reason, no matter which option you pick I found that the DNS server IPs themselves kept showing up. I just need to know the client IP address that’s having a problem updating its DNS record. Share this article [Share on X](https://twitter.com/intent/tweet?url=https%3A%2F%2Fadamtheautomator.com%2Fdns-debug-log-parser%2F&text=Master%20DNS%20Debug%20Parsing%3A%20A%20PowerShell%20Guide)[Share on Facebook](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fadamtheautomator.com%2Fdns-debug-log-parser%2F)[Share on LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fadamtheautomator.com%2Fdns-debug-log-parser%2F) ## Related Posts ![](https://adamtheautomator.com/wp-content/uploads/2020/03/resolve-dns-name.jpg) ### [Resolve-DnsName: Master DNS Record Lookup in PowerShell](/resolve-dnsname/) Master the Resolve-DnsName cmdlet for DNS record lookup in PowerShell. Learn the differences from other tools and enhance your IT skills. ![](https://adamtheautomator.com/wp-content/uploads/2019/07/photo-1542221947260-bfa41adbce43.jpg) ### [Automate DNS Tasks with PowerShell DNS Cmdlets](/powershell-dns/) Streamline your DNS management using PowerShell DNS cmdlets and say goodbye to tedious tasks. ![](https://adamtheautomator.com/wp-content/uploads/2019/07/dns-1-.jpg) ### [PowerShell DNS Zone Management Made Easy](/powershell-add-dns-zone/) Save time and effort by using PowerShell to add and manage DNS zones in this step-by-step tutorial. ## Categories * [IT Ops](/category/it-ops/) * [Cloud](/category/cloud/) * [DevOps](/category/devops/) * [Home Ops](/category/home-ops/) * [Information Security](/category/infosec/) * [Software Development](/category/software-development/) ## Site * [Home](/) * [Tutorials](/tutorials/) * [Instructors](/author/) * [Advertising](/advertising/) * [Recommended Resources](/resources/) * [About Adam](/about-adam/) Copyright 2026© ATA Learning | [Privacy Policy](/privacy/)