Mengamankan Redis sangat penting karena, secara default, instance Redis yang terbuka dapat menjadi kerentanan serius — server Redis yang terbuka telah menyebabkan banyak pelanggaran nyata. Keamanan melibatkan autentikasi, pembatasan jaringan, TLS, pembatasan perintah, dan konfigurasi yang hati-hati.
Keamanan jaringan (paling penting)
⚠️ NEVER expose Redis directly to the internet. By default Redis trusts anyone who
can connect → an exposed instance lets attackers read/delete data, or worse.
✓ BIND to localhost/private interfaces only (bind 127.0.0.1 / private IPs)
✓ Firewall / security groups → only allow trusted app servers to reach port 6379
✓ Run Redis in a private network/VPC, never publicly accessible
→ Most Redis breaches stem from instances left open to the internet. This is #1.
