Cory Fiala

Technology and outdoor enthusiast. Currently the sole systems administrator for a local K-12 school district with 800+ staff and 5,500+ students. I support windows servers, Linux systems (FreeBSD and Ubuntu), along with vSphere (4 node cluster). 60+ virtual machines and 8 physical servers. This doesn't include my personal homelab.

Mass Delete Devices from LibreNMS with Operating System: Generic Device

Leave a Comment / Linux

Recently, we embarked on expanding our network monitoring capabilities by adding a new subnets to our LibreNMS auto-discovery configuration. The goal was straightforward: to ensure comprehensive visibility across our network. However, the outcome was anything but expected. Instead of the anticipated additions, we found ourselves sifting through an influx of devices – a total that […]

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Proactive Phishing Protection: How to Use O365 Defender to Quickly Remove Suspicious Emails

Leave a Comment / Microsoft

In a recent security event, an unauthorized party launched a phishing campaign impersonating our superintendent. To preempt a flood of support tickets and enhance our organization’s cybersecurity posture, we swiftly took action to eliminate the malicious email from all user mailboxes across the network. I discovered the most straightforward approach was utilizing O365 Defender. You

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Fixing Slow Loading Pages and Graphs in LibreNMS by Removing Unicast Port Monitoring from Port Polling

Leave a Comment / Networking

If you’re managing a network with a mixed environment of HP and Juniper switches, you may already be familiar with the power of LibreNMS, a popular network monitoring tool that provides real-time insights into network performance. However, if you’re in the process of rolling out more Juniper EX3400 switches and have noticed a sudden decrease

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Migrating hundreds of PSTs to Exchange 356 via Import and PowerShell

Leave a Comment / Microsoft, PowerShell

I’m currently in the process of of extracting every mailbox from exchange .edb and exporting them to individual PST’s per user. Started doing this by hand and it was taking forever. Here is the process I used to streamline it. Exporting PSTs We purchased a copy of Stellar Repair for Exchange then exported mailboxes as

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