RHEL 10 must disable the chrony daemon from acting as a server.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-280960 | SRG-OS-000096-GPOS-00050 | RHEL-10-200542 | SV-280960r1165235_rule | 2026-03-11 | 1 |
Description
Minimizing the exposure of the server functionality of the chrony daemon diminishes the attack surface.
Satisfies: SRG-OS-000096-GPOS-00050, SRG-OS-000095-GPOS-00049
ℹ️ Check
Verify RHEL 10 disables the chrony daemon from acting as a server with the following command:
$ sudo grep -w port /etc/chrony.conf
port 0
If the "port" option is not set to "0", is commented out, or is missing, this is a finding.
✔️ Fix
Configure RHEL 10 to disable the chrony daemon from acting as a server by adding/modifying the following line in the "/etc/chrony.conf" file:
port 0
Restart the chronyd service with the following command for the changes to take effect:
$ sudo systemctl restart chronyd