A collection of tips and tricks for virtualization, cloud, and anything adjacent..
Finding all files greater than 1GB with Powershell: Get-ChildItem -recurse -force -erroraction silentlycontinue | where {$_.Length -gt 1Gb} | ft If you want to find the 5 largest files, use the following: Get-ChildItem -recurse -force -erroraction silentlycontinue | where {$_.Length -gt 1Gb} | sort-object -Property Length | select-object -Last 5 This is a bit clunky … Continue reading Finding large files with Powershell
I came across these random tips recently and thought I'd note them here: Find 'find' is a pretty basic command at face value, but you can leveraging some of the options. I came across this post that actually shows you how to copy or delete based on your find. #Removes all tar files from the … Continue reading A few Random Tips Increasing your Linux-Fu
You can now schedule and manage EC2 snapshots from the AWS console. No longer is it necessary to script this out. How's this done? At a high level, You can create a policy to snapshot every 12 or 24 hours based on a tag, setting the number of snapshots to retain. Enable policy, tag instances … Continue reading AWS Snapshot Lifecycle Policies- Finally!
RegEx, or Regular Expressions, are critical in being able to parse through logs at the CLI. Here are a few examples for different scenarios: Line starts with.... The ^ denotes the beginning of a line. Many logs begin with a timestamp, so if you want to filter lines for a specific date, this works. grep … Continue reading Grepping & RegEx Patterns for Log Filtering in Linux
With Windows Server 2016 version 1709, FRS replication for SYSVOL is deprecated and you must migrate to DFSR. Fortunately, there is a lot of documentation on how to do this. This is the best article I've come across, as it spells out all of the locations in the registry and ADSI, etc to confirm health … Continue reading Migrating SYSVOL replication from FRS to DFSR
I recently deployed AWS GuardDuty for a client and wanted to share some thoughts on the services at a high level. If unfamiliar, GuardDuty is a managed threat detection service that continuously monitors for malicious or unauthorized behavior by evaluating VPC Flow Logs, CloudTrail and DNS Logs (if using AWS DNS). The Good A single click … Continue reading Thoughts on AWS GuardDuty
Ok, creating a user account with Powershell- what's interesting about this? Well, let's take a look: It's noteworthy to point-out that you need to convert the password to a secure string. Otherwise, you'll end up with a error like this: A secure string is required for a password creation. If you're creating the account interactively, … Continue reading Creating Local Accounts in Powershell
