Moving the whole stack.
Migrated production WordPress workloads to Rocky Linux on DigitalOcean. Configured nginx, PHP-FPM, MariaDB, SELinux, DNS, TLS, and Cloudflare.
The diagram above changes with each project.
Systems AdministratorInfrastructure / Networks / Security
BrockCallahan.
I work on the systems
behind the screen.
Servers, networks, web platforms, and the problems in between. A background in Linux. An interest in the whole picture.
Explore my work ↓An experiment in connections
0001 / Production migrationMove your pointer to disturb the field
Illustrative topology · Select a project below
Selected work
Portfolio / 0100 projectsA little contextTechnically
Technically
curious.
I’m a systems administrator with experience across infrastructure, networking, web platforms, containers, and security.
I like getting past the surface of a problem: understanding the dependencies, finding the cause, and making the system easier to work with.
Read my résumé ↗Tools & technologies +
Rocky Linux · Ubuntu · Docker · Docker Compose · Bash · nginx · PHP-FPM · MySQL / MariaDB · DigitalOcean · Cloudflare · DNS · TLS · SELinux · WordPress · Keycloak · OpenID Connect
Certifications & credentials +
CompTIA A+ · Network+ · Security+ · Project+ · CySA+ · PenTest+ · Associate of ISC2 · ITIL 4 Foundation · LPI Linux Essentials
Open to full-time, contract & project workGet in touch
Let’s talk.↗