Werk #17097: Increase RSA key size for Agent Controller's client TLS certificate

Component

Checks & agents

Title

Increase RSA key size for Agent Controller's client TLS certificate

Date

Oct 17, 2024

Level

Trivial Change

Class

New Feature

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.4.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p19	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.2.0p36	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

The Agent Controller now uses 4096-bit RSA keys for the TLS certificates required for mutual TLS authentication.

This change only affects newly generated certificates for new connections. Existing certificates remain unchanged and will continue to be accepted.