AIX7-00-001053 - AIX must provide time synchronization applications that can synchronize the system clock to external time sources at least every 24 hours - NTP Server

Information

Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when conducting forensic analysis and investigating system events. Sources outside the configured acceptable allowance (drift) may be inaccurate.

Synchronizing internal information system clocks provides uniformity of time stamps for information systems with multiple system clocks and systems connected over a network.

Organizations should consider endpoints that may not have regular access to the authoritative time server (e.g., mobile, teleworking, and tactical endpoints).

Satisfies: SRG-OS-000355-GPOS-00143, SRG-OS-000356-GPOS-00144

Solution

Edit /etc/ntp.conf

Configure ntp server by adding the following line:
server server_ipaddr

Set maxpoll to <value> <=16 by adding the maxpoll <value>.

Restart the ntp daemon.

# stopsrc -s xntpd
# startsrc -s xntpd

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_IBM_AIX_7-x_V2R5_STIG.zip

Item Details

Category: AUDIT AND ACCOUNTABILITY

References: 800-53|AU-8(1)(a), 800-53|AU-8(1)(b), CAT|II, CCI|CCI-001891, CCI|CCI-002046, Rule-ID|SV-215208r508663_rule, STIG-ID|AIX7-00-001053, STIG-Legacy|SV-101621, STIG-Legacy|V-91523, Vuln-ID|V-215208

Plugin: Unix

Control ID: f0cdebcaf4434f0b0b7e3a4abc78aa873fee03343e24b3daf4accb8552e50b99