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- The slave and (notification-)master notification spoolers communicate with each other via TCP. Notifications are sent from slave to master. The master acknowledges to the slaves that the notifications have been received, which prevents notifications from being lost even if the TCP connection is broken.
There are two alternatives for the construction of a TCP-connection:
A TCP-connection is configured from the central site to a remote site: Here, the remote site is the TCP-server.
A TCP-connection is configured from a remote site to the central site: Here, the central site is the TCP-server.
- Notification spooler connections can be encrypted with Checkmk 2.1 → https://checkmk.com/werk/13610
Distributed Event Console
The Event Console processes syslog-messages, SNMP traps, and other types of events of asynchronous nature.
Checkmk Distributed Agent Bakery
You can enable automatic agent updates not only from the central site but also through the remote sites. This can be useful if the central site is not accessible directly from hosts monitored on a remote site. The remote site acts as a caching proxy here, which receives connections from the hosts and forwards them through HTTPS to the central site unless the requested agent is already present in the remote site's cache. This enables secure agent updates in distributed environments while still being efficient on bandwidth.
Checkmk GUI
You can secure your Checkmk GUI with HTTPS (https://docs.checkmk.com/latest/en/omd_https.html)
User management with LDAP (e.g., Active Directory)
Securing LDAP connections with SSL (https://docs.checkmk.com/latest/en/ldap.html#ssl)
Automatic Disk space cleanup
We have now added the functionality to clean up the host-related files to the disk space cleanup mechanism. This mechanism is enabled by default and cleans up all files of not existing hosts that are older than one month by default. Suppose you want to disable this automatic deletion or customize the time horizon. In that case, you can configure it in the global settings of the Setup using the "Automatic disk space cleanup" option.
SSO & 2FA
- Two-factor authentication will be available with Checkmk 2.1 → https://checkmk.com/werk/13325
- SSO → https://docs.checkmk.com/latest/en/kerberos.html
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