Ports 22, 80, 443, 53 | never forget them again | Linux Interview Q#14

Ports 22, 80, 443, 53 — the four numbers that open almost every IT interview, proven live from /etc/services.

You'll see:
• 22 SSH · 80 HTTP · 443 HTTPS · 53 DNS
• /etc/services — the official list built into Linux
• the senior answer: why ports below 1024 need root, and why dev servers use 8080

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#linux #networking #ports #devops #sysadmin #interviewquestions #shorts

Видео Ports 22, 80, 443, 53 | never forget them again | Linux Interview Q#14 канала ShellReady