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Firewall rules

You must allow these rules to make Passbolt work in a firewalled environment:

Inbound rules

Protocol name Port number Transport Layer Protocol Comment
HTTP 80 TCP Optional, should be used only to redirect to HTTPS
HTTPS 443 TCP To serve Passbolt through HTTPS

Outbound rules

Protocol name Port number Transport Layer Protocol Comment
SMTP usually 587 TCP To send email notifications, used port depends of your SMTP server configuration, usually 25/TCP, 587/TCP or 465/TCP
DNS 53 UDP To be able to resolve SMTP server name, or download.passbolt.com to check for updates
NTP 123 UDP To make server synchronized to a NTP server. Mandatory to make GPG or MFA/OTP work

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