Coding

JR

8 minute read

If you have redundant Windows 2008 DHCP servers (likely with split-scope configurations), you’re familiar with the problem of keeping reservations between the servers synchronized. I figured I’d post a script I created to sync reservations between servers. Synchronization can be 1-to-1 or 1-to-many, depending on your redundant DHCP server configuration. This script can sync with ALL authorized DHCP servers in a domain if needed. Make sure to read the included Powershell help…

JR

4 minute read

Windows Security event logs fill up fast when you have Directory Service Access Auditing enabled, for whatever reason. If I want to retain any useful information, I need at least 7 to 14 days of logs to review, in my case, the DNS scavenging process. The built-in ‘Archive log when full’ option doesn’t really help out as much as you’d think, particularly when I might have 2 or 3 logs (each 300MB) per day. I poked around Windows Server 2008 looking for options to increase…

JR

3 minute read

I’ve stumbled on a useful plug-in from Lars Michelsen that easily monitors a single Windows Server DHCP scope for usage using SNMPv2, but found this fell short of what I needed for monitoring several scopes at once. I’ve modified Lars’ original plugin/script to accommodate all available DHCP scopes on your monitored Windows server. You no longer need to add separate service definitions to monitor all available scopes. It’s worth noting a couple of important details: