Access Control

Access control lets you restrict which IP addresses can connect to your database. Only the IP ranges you add to the allowlist can reach the database, and everything else is blocked.

Open your database in the Sliplane dashboard and go to the Access Control tab to manage the list.

How It Works

Only the IP ranges listed in the allowlist can connect to your database. Any address that does not match a rule is blocked.

Caution

If the list is empty, all access is blocked. Add at least one rule to allow connections.

Adding a Rule

1. Open your database and go to the Access Control tab
2. Click Add Rule
3. Enter an IP address or CIDR range
4. Optionally add a comment to describe the rule (e.g. “Office VPN” or “CI server”)
5. Save your changes

Changes take effect shortly after saving.

CIDR Notation

Rules use CIDR notation to specify IP ranges, for both IPv4 and IPv6:

Rule	What it matches
203.0.113.10	A single IPv4 address
203.0.113.0/24	All IPs from 203.0.113.0 to 203.0.113.255 (256 addresses)
0.0.0.0/0	All IPv4 addresses
2001:db8::1	A single IPv6 address
2001:db8::/48	An IPv6 range
::/0	All IPv6 addresses

Common IPv4 subnet sizes:

• /32 - single IP (same as specifying the IP without a prefix)
• /24 - 256 addresses (e.g. 192.168.1.0/24)
• /16 - 65,536 addresses (e.g. 172.16.0.0/16)

Managing Rules

You can update or delete existing rules at any time. Changes take effect shortly after saving.

Each rule can have an optional comment to help you remember what it is for, which is especially useful when managing multiple rules.

Tip

To allow connections from anywhere, add 0.0.0.0/0 to the list. This permits all IPv4 addresses, so only use it when your database is protected by other means such as strong credentials.