Service hostnames
Use these hostnames from inside your WHP container — they resolve to the internal services your site can talk to. They don’t work from your laptop; see the note below.
Some applications need to connect to databases or caches. Use these hostnames from inside your site — they only resolve within your hosting container, so they don’t work from your laptop.
| Service | Hostname | Default port | Notes |
|---|---|---|---|
| MySQL | mysql | 3306 | Username, password, and database from the MySQL Management page. |
| PostgreSQL | postgres | 5432 | Username, password, and database from the PostgreSQL page. |
| Valkey | valkey | 6379 | Redis wire-compatible (phpredis, Predis, ioredis work unchanged). No password — the connection is network-isolated to your account. Enable on the Valkey Cache page first. |
For email, the mail server hostname is a per-server value (e.g. mail01.cloud-hosting.io) and is shown on the Dashboard page under Server Information.
Connecting from your laptop? Use the panel’s phpMyAdmin (MySQL) or Adminer (PostgreSQL) for ad-hoc queries — direct external connections to these internal services are not exposed for security reasons.
Where do I get credentials?
Section titled “Where do I get credentials?”- MySQL — sidebar → MySQL Management. Create users and databases there; the phpMyAdmin link below it opens an SSO’d phpMyAdmin in a new tab.
- PostgreSQL — sidebar → PostgreSQL. Same shape as MySQL Management; the Adminer link below it opens an SSO’d Adminer.
- Valkey — sidebar → Valkey Cache. Click Enable Valkey, pick a memory cap and mode, and you’re done — no password needed because connections are network-isolated to your account.
Mail servers
Section titled “Mail servers”Mail server hostnames are not per-domain. Your server has one mail server hostname (for example mail01.cloud-hosting.io) that handles IMAP, POP3, and SMTP for every domain on that server. Find your exact mail server hostname on the Dashboard page in WHP under Server Information — that’s also where you’ll find your server’s IP, primary nameservers, and your home directory.
For step-by-step email-client setup, the Email page has a Setup Instructions button that lays out the exact host, port, and security settings.
Connecting from your laptop
Section titled “Connecting from your laptop”Direct external connections to these internal services are not exposed. Use the panel’s tools instead:
- MySQL — phpMyAdmin in the panel for ad-hoc queries.
- PostgreSQL — Adminer in the panel.
- Valkey — there’s no first-party browser tool; use a Valkey/Redis client inside your site’s Terminal (sidebar → Terminal).
Related
Section titled “Related”Still stuck?
Section titled “Still stuck?”Still stuck? Open a support ticket and our team will help.