TIL - Today I Learnt

Personal tech learning and growth journal. I love to see 👀 to learn so this TIL book has (or will have) a lot of images. It's my favourite children's book with illustrations.

Networking

• GLAN and VLAN
• Port or interface?
• Ports: Admin ports or SPAN ports?
• SPAN
• SPAN session
• SSH Tunneling

Networking Protocols

• Protocols
• DHCP
  • Is DHCP a must for every subnet?

Packet Analysis

• Connection
• DHCP packet

Networking utilities

• curl and ping
• netcat

Networking logs

• Logs
• syslog
• kern.log

Networking Concepts & Terms

• Connection

Standards

• CEF (Common Event Format)

Hardware

• DIMM
• RAID
• UEFI
• ipmi

Electronics

Basics

• AC/DC currents

Concepts

• Thurmal trip

Database

PostgresSQL

• Commands

JavaScript

• Stack trace

Git

• Rename local and remote branch

Markdown

• Highlight plain text