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Best rule setting for DigitalOcean firewall

I have a MySQL droplet that just can only be accessed by other droplets through a specific port and accessed externally via SSH only.

What is the best rule for the DigitalOcean firewall in this case (inbound / outbound) ?

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Shivanand Sharma • May 2, 2018
Accepted Answer

Just keep the inbound and outbound on 3306. Keep inbound on port 22 (ssh)

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Now Available: Managed MySQL DatabasesProduct

Want a more reliable, scalable database?

  • Let us manage the database engine for your app so you can focus on building
  • Choose from 3 database engines: PostgreSQL, Redis, and MySQL
  • We'll handle setting up, backing up, updating, and restoring for you