The daytime daemon must be disabled on AIX.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-215369SRG-OS-000095-GPOS-00049AIX7-00-003064SV-215369r958478_rule2026-02-063

Description

The daytime service provides the current date and time to other servers on a network. This daytime service is a defunct time service, typically used for testing purposes only. The service should be disabled as it can leave the system vulnerable to DoS ping attacks.

ℹ️ Check

From the command prompt, execute the following command: # grep "^daytime[[:blank:]]" /etc/inetd.conf If there is any output from the command, this is a finding.

✔️ Fix

In "/etc/inetd.conf", comment out the "daytime" entries by running commands: # chsubserver -r inetd -C /etc/inetd.conf -d -v 'daytime' -p 'tcp' # chsubserver -r inetd -C /etc/inetd.conf -d -v 'daytime' -p 'udp' Restart inetd: # refresh -s inetd