Posts
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String Manipulation in Bash (Without sed or awk)
Bash has built-in string operations: substring extraction, find-replace, case conversion, and trimming. You don't need sed for basic text work.
5 min read -
Vaultwarden vs Bitwarden: Own Your Passwords Before Someone Else Does
Why trust a cloud with your passwords? Compare Vaultwarden and Bitwarden self-hosted, lightweight vs full-stack, Docker setup, backups, and which one to actually run.
· Updated:11 min read -
Docker Resource Limits: Stop Letting Containers Eat Your RAM
Learn how to set Docker resource limits for memory, CPU, swap, and PIDs. Practical guide with real-world sizing examples, OOM killer behavior, and cgroups explained.
· Updated:22 min read -
Flowise vs Langflow: Build AI Pipelines Without Writing a Novel
Flowise vs Langflow compared: self-hosted, Docker-ready visual LLM workflow builders. Build no-code AI pipelines, RAG chatbots, and more, without losing your mind.
· Updated:10 min read -
Proxy Chains and Anonymization: What Actually Works and What's Just Theater
Proxychains-ng, Tor, and VPN+Tor combos tested honestly: which setups actually anonymize traffic and which are security theater you should stop trusting.
· Updated:9 min read -
Bash Arithmetic Without bc
Bash does arithmetic natively, so you can drop bc for most math. Arithmetic expansion, conditions, bitwise operators, and the trap inside $(( )).
5 min read -
n8n vs Node-RED: Automate Everything Without Learning to Code (Much)
You're paying $20/month to Zapier for two HTTP requests. n8n and Node-RED replace it for free: Docker setup, real workflows, and a head-to-head comparison.
· Updated:8 min read -
Linux Audit Log: What's Really Happening on Your Server
auditd logs every system call, file access, and command run on your Linux server. Learn ausearch, aureport, and how to write audit rules that catch it.
6 min read -
Ventoy: Boot Any OS, Any Time
Ventoy turns any USB drive into a multi-boot drive, drop ISOs on it and boot any OS without re-flashing the drive each time.
· Updated:14 min read -
Bash Strict Mode: set -euo pipefail Explained
set -euo pipefail makes your bash scripts fail fast instead of silently. Here's what each flag does and why they matter.
· Updated:6 min read -
The sudoers Mistake Everyone Makes Once
One syntax error in /etc/sudoers locks everyone out of root. Use visudo, read the syntax properly, avoid the common mistakes, and know what NOPASSWD gives.
5 min read -
awk for Log Parsing: 5 Patterns You'll Actually Use
awk is perfect for parsing logs. 5 patterns for filtering, summing, counting, splitting fields, and reformatting, no Perl or Python required.
· Updated:6 min read
