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March 2, 2022 – 2:00 pm

Books have been written on the subject of awk and sed. Here’s a small sample of commands I put together over the years that are useful for everyday system administration tasks. Most of these tasks …

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Home » Archive by Month

Article Archive for February 2018

Encrypted Volumes and Portable Apps

February 25, 2018 – 3:08 pm
vault safe

This is a description of an uncomplicated setup for an encrypted volume and portable applications for a Windows laptop consisting of a USB3 storage device, VeraCrypt OSS OTFE, a hardware password wallet, and portableapps.com software.

Detect SSL Certificate Injection

February 21, 2018 – 3:05 pm
spy

When the SSL Digital Certificate is intercepted and replaced by a device between your browser and the Web site, we call it certificate injection. This method is more commonly used not by hackers, but by …

Tmux Bootstrap Configuration

February 17, 2018 – 3:22 pm
odsiuofisdufohuodsifugoisdgf

Just a list of commands to quickly configure tmux with some of the best (i.e. my favorite) plugins and options. Feel free to disagree – you may be right – but I don’t think so.

Find Large Files

February 17, 2018 – 3:21 pm
elephant

Every time a filesystem is running out of space and I need to find something to delete, I end up googling the syntax for the find command to make sure it stays off NFS and …

SSL For Self-Hosted WordPress

February 17, 2018 – 3:05 pm
encryption

Just some notes for setting up SSL with your self-hosted WordPress hosting installation. Just got around to doing this the other day. Yeah, I know, about time…

Show Logged In Users During a Time Window

February 17, 2018 – 2:59 pm
clock

Let’s say you want to see who was logged in on the server during last weekend. This includes users who, say, logged in on Thursday and haven’t logged out until Saturday afternoon.