Infrastructure · cloud · operations
Pushpendra
Infrastructure systems engineer in Jaipur. I design, implement, troubleshoot and operate the systems that keep modern workplaces connected — then write up the parts that are usually explained wrong.
- Uptime / latency
- 99.98% · 18ms
- Office rollout
- 400+ seats
- Enterprise migrations
- 100+
- SLA compliance
- 95%+
What I work on
The day job behind the writing — production systems, not demo environments.
Networking & security
FortiGate SD-WAN policy routing, segmentation and perimeter design across multi-site offices.
Cloud & DevOps
AWS VPC architecture, Terraform, Docker and Kubernetes, with monitoring that actually pages the right person.
Enterprise infrastructure
Windows Server and Linux estates, identity, Microsoft 365 and Google Workspace migrations.
Monitoring & automation
Zabbix, Prometheus, Ansible and n8n — turning repeat incidents into unattended playbooks.
How this site is written
Three rules every explainer here has to pass.
Reality-first engineering
No hand-waving abstractions. We trace down to the C structs in linux/sched.h, VFS inodes and real syscall sequences.
Defense in depth
From AWS VPC subnet NACLs to local Linux DAC and capabilities like CAP_DAC_OVERRIDE, security gets verified end to end.
Visual intuition
Hard concepts land faster through animated state diagrams, interactive bit grids and repeatable lab drills.
Follow the series
Ten flagship deep-dives, each with an interactive lab and a flashcard set.