Difference between revisions of "Live CD/DVD Tips"
From NST Wiki
Jump to navigationJump to search (→Quick Way To Startup: Network Time Protocol (NTP) Services) |
|||
(2 intermediate revisions by one other user not shown) | |||
Line 1: | Line 1: | ||
== Quick Way To Startup: Network Time Protocol (NTP) Services == | == Quick Way To Startup: Network Time Protocol (NTP) Services == | ||
− | + | The following demonstrates how to enable the '''NTP''' service at boot time and start the '''NTP''' service at a shell prompt. | |
Example: | Example: | ||
− | < | + | <div class="screen"> |
− | [root@probe ~]# | + | <div class="screenTitle">''Managing The:'' "ntpd" Service</div> |
− | ntpd | + | <div class="userInput"><span class="prompt">[root@probe ~]# </span>systemctl enable ntpd.service</div> |
− | + | <pre class="computerOutput"> | |
− | [root@probe ~]# ntpq -pn | + | ln -s '/lib/systemd/system/ntpd.service' '/etc/systemd/system/multi-user.target.wants/ntpd.service' |
+ | </pre> | ||
+ | <div class="userInput"><span class="prompt">[root@probe ~]# </span>systemctl start ntpd.service</div> | ||
+ | <div class="userInput"><span class="prompt">[root@probe ~]# </span>ntpq -pn</div> | ||
+ | <pre class="computerOutput"> | ||
remote refid st t when poll reach delay offset jitter | remote refid st t when poll reach delay offset jitter | ||
============================================================================== | ============================================================================== | ||
Line 15: | Line 19: | ||
24.123.214.97 129.6.15.29 2 u 4 64 1 73.682 38.248 0.002 | 24.123.214.97 129.6.15.29 2 u 4 64 1 73.682 38.248 0.002 | ||
62.112.194.64 193.67.79.202 2 u 3 64 1 128.611 -19.668 0.002 | 62.112.194.64 193.67.79.202 2 u 3 64 1 128.611 -19.668 0.002 | ||
− | |||
</pre> | </pre> | ||
+ | <div class="userInput"><span class="prompt">[root@probe ~]# </span></div> | ||
+ | </div> | ||
+ | |||
+ | Alternatively, you can use the '''chronyd''' service for time synchronization. The following example enables and starts the '''chronyd''' service: | ||
+ | |||
+ | <div class="screen"> | ||
+ | <div class="screenTitle">''Managing The:'' "cronyd" Service</div> | ||
+ | <div class="userInput"><span class="prompt">[root@probe ~]# </span>systemctl enable chronyd.service</div> | ||
+ | <pre class="computerOutput"> | ||
+ | ln -s '/lib/systemd/system/chronyd.service' '/etc/systemd/system/multi-user.target.wants/chronyd.service' | ||
+ | </pre> | ||
+ | <div class="userInput"><span class="prompt">[root@probe ~]# </span>systemctl start chronyd.service</div> | ||
+ | <div class="userInput"><span class="prompt">[root@probe ~]# </span></div> | ||
+ | </div> | ||
+ | |||
+ | The '''NST''' Web User Interface provides many web pages with additional information and tools to manage time related services. From the main '''NST WUI''' menu bar, select: ''System | Time Management''. | ||
+ | |||
+ | <!-- | ||
+ | <span style="font-size: 90%;">'''''Note:''''' Computer screen output using CSS (see [[MediaWiki:Common.css]]):</span> | ||
--[[User:Rwh|Rwh]] 14:20, 25 February 2007 (EST) | --[[User:Rwh|Rwh]] 14:20, 25 February 2007 (EST) | ||
+ | --> |
Latest revision as of 08:54, 7 December 2012
Quick Way To Startup: Network Time Protocol (NTP) Services
The following demonstrates how to enable the NTP service at boot time and start the NTP service at a shell prompt.
Example:
Managing The: "ntpd" Service
[root@probe ~]# systemctl enable ntpd.service
ln -s '/lib/systemd/system/ntpd.service' '/etc/systemd/system/multi-user.target.wants/ntpd.service'
[root@probe ~]# systemctl start ntpd.service
[root@probe ~]# ntpq -pn
remote refid st t when poll reach delay offset jitter ============================================================================== 88.198.18.245 6.146.224.0 3 u 5 64 1 113.915 68.354 0.002 24.123.214.97 129.6.15.29 2 u 4 64 1 73.682 38.248 0.002 62.112.194.64 193.67.79.202 2 u 3 64 1 128.611 -19.668 0.002
[root@probe ~]#
Alternatively, you can use the chronyd service for time synchronization. The following example enables and starts the chronyd service:
Managing The: "cronyd" Service
[root@probe ~]# systemctl enable chronyd.service
ln -s '/lib/systemd/system/chronyd.service' '/etc/systemd/system/multi-user.target.wants/chronyd.service'
[root@probe ~]# systemctl start chronyd.service
[root@probe ~]#
The NST Web User Interface provides many web pages with additional information and tools to manage time related services. From the main NST WUI menu bar, select: System | Time Management.