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Augusto Tijerina

~❯ blog


Not a developer

Sysadmin 2022-January-15

I'm not a developer. But I still try to contribute as much as I can.

gitlab activity

A swaggy year

Sysadmin 2021-December-15

This year I decided to take advantage of several of the industry related online events.

I've never had a chance to do junkets or swag events, not even at college. I guess you could call these online junkets, but they were amazingly informative. I gathered a lot of knowledge, saw some extremely impressive demos, completed a free accreditation course and made several contacts for networking later on.

I also managed to win several points in each event's activities, enough to score some swag. I was surprised to get a microphone in the vmware empower challenge.

susecon 2021 digital swag box

Red Hat Summit 2021 swag

vmware empower 2021 swag

ansible fest 2021 swag

I'll try to go to more events in the future.

telnet considered harmful

Sysadmin 2021-July-15

What's wrong with the large number of Windows sysadmins still using telnet?

I've been asked to try telnet commands to/from modern linux systems and environments more times than I can count. It never ends up being useful, and its just a lazy way of keeping in use a veeeery old tool in modern systems.

Here, let me give a a quick Powerhell example:

Test-NetConnection -ComputerName $IP_ADDRESS -InformationLevel "Detailed" -Port $PORT

It's ok to use tools from the last couple of decades, my fellows. Go for it. perfect score animation.

Sysadmin 2021-April-05

So, I finally got a perfect score and boom, there's a fireworks animation.

On futility and cognitive poisons.

Sysadmin 2021-March-20

There's no intrinsic value in several discussion topics.

There's no point to inane drivel or waste, regardless of how much we try to justify it.

What a year

Sysadmin 2021-February-27

This is another extreme year. Covid recovery. Power blackouts, inclement weather. Injuries while getting in shape. Looots of work and no play.

On the other hand, I got so much experience on corporate cybersec, gitlab, shell, RHEL, Nessus, Active Directory, vmware and networking tweaks I feel my beard just grew longer.

Obi-Wan lives

Sysadmin 2021-February-11

[[email protected] /var]$ id lgarza
uid=1001(syadmin) gid=1001(sysadmin) groups=1001(sysadmin)

[[email protected] /var]$ last lgarza | head -n 2
lgarza     pts/0      Wed Dec 30 21:00 - crash  (20:07)
lgarza     tty1                      Tue Jan 12 02:42 - down   (20:09)

[[email protected] /var]$ alias lgarza="echo 'lgarza lives' && sudo su -"

[[email protected] /var]$ lgarza

On the 12th of January of 2021 Luis Garza passed away after a brief, terrible battle with COVID-19.
He was a decent Linux sysadmin, obsessive about his family and leisure activities.
We disagreed on a lot of things, and I think he was tremendously mistaken about many ideas, beliefs and practices. Including those that ultimately turned out wrong.
Still, I learned a lot, even if it was what not to do, what path not to take.

Goodbye, Obi-Wan.

A lesson from ansible/yaml

Sysadmin 2020-May-3

Most important thing about working from ansible/yaml: You're not executing a change. You're declaring the final state of that change

Also, you definitely need a decent text editor. Default vi on jumphosts just doesn't cut it.

Pandemic preparedness

Sysadmin 2020-May-3

Sure glad I started to work with healthcare providers (HCPs). Being in this position has been an oppportunity to gain experience on a very important infrastructure area during an extremely stringent period of time.

The work I do matters. Nowadays, even more than usual.

Yet another redesign and relaunch

Sysadmin 2020-Apr-14

New redesign.

  • CSS based, w3css.
  • Light in Javascript.
  • PWA conformant
  • Optimized image formats.
  • Cruft removed.
  • New additional structured data + json based information.

That uneasy feeling

Sysadmin 2019-May-17

Have you ever had an uneasy feeling from seeing someone you met before?.
Warning bells just ringed in my head when I saw some pictures of people I met while in my previous job role and city.
Seemingly happy family, but such evil hidden behind.

You know how some crooked people is described in documentaries?:
"They seemed like a happy normal family".
"We didn't know what was happening."
Then they end up being massively evil people (thiefs, killers, sexual abusers and on and on).

Calling it right now, if something comes to light about them, this is me saying I suspected it.

Source Code Visualization

Sysadmin 2019-May-8

Site Redesign mostly complete. I've generated a Gource video file to visualize development.

Website rebuilt

Sysadmin 2019-May-7

Dark redesign using the latest Foundation Framework and advanced website speed optimization techniques.

Red Hat Delivery Specialist - Cloud Automation

Sysadmin 2018-October-29

I've completed the RedHat Cloud Automation coursework. Red Hat's training material is excellent and even though the lab environment was a bit wonky it was otherwise very nice. Took around 80 hours total (no skipping and a lot of note taking).

Using ansible in all of my servers

Sysadmin 2018-October-1

And so, I setup ansible as a main tool to work on my personal servers. It's great, it doesn't mind working on a mixed set of distributions and server stacks.

New Website Design

Sysadmin 2018-October-1

I've redesigned my site for a cleaner look and faster loading. I've also fixed some compatibility issues and minor viewport bugs on IE.

I took a long look at several new minimalistic CSS frameworks, and even though I like the idea, most of them leave out older browser compatibility due to taking advantage of new CSS properties. This tradeoff makes them very clean, but centered around mostly webkit based browsers. I also dislike deeply the idea of installing them through the nodejs toolchain, since its prone to breakage and overengineering.

Clean code for clean designs.

A workable Unix sysadmin setup

Sysadmin 2018-June-1

Here's my current setup.


  • Lenovo Thinkpad t540p


  • KDE Neon
  • Firefox Nightly
  • Spacemacs / Kate
  • Yakuake
  • OpenVPN
  • Apache/NGINX
  • Arc/Solarized Color Scheme

Source Code Visualization

Sysadmin 2018-May-20

Site Redesign mostly complete. I've generated a Gource video file to visualize development.