Werk #16661: Notification Spooler: Support IPv6

Component Notifications
Title Notification Spooler: Support IPv6
Date Jun 18, 2024
Level Trivial Change
Class New Feature
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.4.0b1 Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p8 Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

Previously mknotifyd only supported IPv4. This werk adds support for IPv6.

Incoming connections now accept IPv4 and IPv6 if the server supports dual-stack IPv6. For outgoing connections you may now enter IPv6 addresses as well. IPv6 will also be used, if a hostname resolves to an IPv6 address. If a hostname resolves to both IPv4 and IPv6, IPv4 is still preferred.

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