Ensure dhcp server services are not in use

How it is checked

Audit method: Shell command

alt0() { command -v rpm >/dev/null 2>&1 || { echo "step1: rpm not installed"; return 1; }; o=$(bash -c 'rpm -q kea' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'package kea is not installed' || { echo step1: missing 'package kea is not installed'; return 1; }; }; alt1() { o=$(bash -c 'systemctl show kea-dhcp-ddns.service kea-dhcp4.service kea-dhcp6.service -p UnitFileState,ActiveState | grep -Pi '"'"'=(enabled|active)'"'"'' 2>/dev/null); [ -z "$o" ] || { echo "step1: $o" | head -c 300; return 1; }; }; if alt0 || alt1; then echo compliant; fi

Expected output

compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Run the following commands to stop kea-dhcp-ddns.service, kea-dhcp4.service, and kea-dhcp6.service and remove the kea package: # systemctl stop kea-dhcp-ddns.service kea-dhcp4.service kea-dhcp6.service # dnf remove kea - OR - - IF - the kea package is required as a dependency: Run the following commands to stop and mask kea-dhcp-ddns.service, kea- dhcp4.service, and kea-dhcp6.service: # systemctl stop kea-dhcp-ddns.service kea-dhcp4.service kea-dhcp6.service # systemctl mask kea-dhcp-ddns.service kea-dhcp4.service kea-dhcp6.service

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

tmaegis scan --target linux