### Achieving Greatness - systemd - Not a single binary, still kinda sorta not really The Unix Philosophy - Customizable - Startup/Bootstrap scripts - Infecting the lifeblood of our world - What does your server run, bro? - Anyone can contribute - Giving youth an opportunity to learn computer science ### Adaptation - Gaming - Multimedia - BLeading Edge (yes, it's spelled correctly. I am mixing bleeding leading. Back off) - TechTubers (Linus Tech Tips, Hardware Unboxed, Level1Techs) ### LISA SU IS MY BEST FRIEND - Silicon manufacturers - Clear Linux - Nvidia sux (but I still use them) ### Not R ..read more

### Doug McIlroy - Make each program do one thing well. To do a new job, build afresh rather than complicate old programs by adding new features. - Expect the output of every program to become the input to another, as yet unknown, program. Don't clutter output with extraneous information. - Design and build software, even operating systems, to be tried early, ideally within weeks. Don't hesitate to throw away the clumsy parts and rebuild them. - Use tools in preference to unskilled help to lighten a programming task, even if you have to detour to build the tools and expect to throw some of the ..read more

SecBSD Why SecBSD? LINUX SUCKS Jk, don’t gank me bro. First heard about it on an interview with BSD Bandit. https://www.youtube.com/watch?v=Q-zSlKRqQY8 “…nor do we want to have defaults that run tools as UID 0 (root). OpenBSD is our preferred platform, with the relentless focus on security, shipping with sane defaults, proper documentation and a thorough and constant auditing process.” Security researchers comfortable with OpenBSD/*BSD platforms. Bug hunters, bounty hunters, penetration testers wanting to flex on the Linux kernel. Probably need to know a little (see: a lot) about how Informati ..read more

Welcome to the first Head in the Clouds segment! Today we discuss what separates a VPC from a VPS, why the cloud is so "damn" expensive, and what services will serve your organization the best. We also get into monitoring your billing and utilization, why the cost justifies the time, having the latest and greatest at all times ..read more

Primer for Head in the Clouds! What's the best VPS? Spoiler, it's Vultr. Opinions my own. I wasn't paid to say that. Blah blah blah. When to Self Host? - Personal Projects - Experiments - Personal Data - E-mail - Files Self Host Considerations? - DNS - Dynamic DNS - Service Provider - Network Intrusion - Equipment - Electric Bill When to Outsource? - Portfolio Sites - RSS - Client Sites - E-mail? - Collaboration Outsourcing Considerations? - Cost - Availability - Location - OS/Distro Shilling - Services Provided - Suit Your Needs Who to Outsource to? - Linode - Digital Ocean - Vultr Why Vultr ..read more

Last half of the review is in today! Sneak peak into new segment: Head in the Clouds Networking for Systems Administrators Part II - Packet Sniffing - Creating Traffic - Server Packet Filtering - Tracing Problems - Final Word "Even if you fail utterly, at least you'll finally know if that firewall port is open or not ..read more

Hey everyone! First half of the first book review on the show! Networking for Systems Administrators by Michael W Lucas is a dive into defining how networks work, troubleshooting a network, and providing useful information into what the network engineering team needs. I give my initial thoughts, breakdown the first half of the book, and discuss some useful insights and knowledge I gained from reading. Stay tuned for the next half! - Who should read this book? - Chapter 0! - Applied OSI model - Ethernet all the things - IPv4 and IPv6 - TCP/IP - Viewing connections - Testing the network - It's a ..read more

## BSD Administration and C-isms ### Deploying to OpenBSD - Played with OpenBSD and HTTPD - Not your Grandpa's HTTPD - Based on relayd - Features - Very similar to Nginx - Macros - Global conf - Sever declaration - ACME Client - Automatic Certificate Management Environment (phew) - Location blocks - Connect with Let's Encrypt - _Sane_ Defaults - Say it with me - Protections in place to protect the system admin and users - You "unlock" what you want to use - Traffic - Couldn't tell (too low) - Rendered/responded very well - Basic stress testing showed no difference than Linux ### Writing in Use ..read more

Today I catch up with Mike and Phil from The rollBak! We go into what's changed over the last year, new endeavors, why we think containers might be overkill, and more! Be sure to mutilate the subscribe button and stab that like. USE LINUX.   ..read more

## Semaphore vs Mutex vs AdminDev ### Semaphore - More of a signal than a lock/unlock - Integer value accessed through wait() and signal() - wait() checks if the int is less than or equal to 0, decrements value - signal() increments the integer value ### Semaphore Over Mutex - Mutex locks can have busy waiting. - Semaphore wait() results in busy waiting, but a process can block itself with a wakeup() implementation - Semaphore can still result in syncing issues - Critical-Section: Two processes can be in the same section if the wait() and signal() sequence is not monitored ### Semaphores in OS ..read more