Difference between revisions of "Live CD/DVD Tips"
From NST Wiki
Jump to navigationJump to search (New page: == Quick Way To Startup The Network Time Protocol (NTP) == Here is a quick way to start up '''NTP''' services at a shell prompt. Just type in the "'''lntpd'''" bash alias. Further one lin...) |
|||
| (4 intermediate revisions by one other user not shown) | |||
| Line 1: | Line 1: | ||
| − | == Quick Way To Startup | + | == 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: | ||
| + | |||
| + | <div class="screen"> | ||
| + | <div class="screenTitle">''Managing The:'' "ntpd" Service</div> | ||
| + | <div class="userInput"><span class="prompt">[root@probe ~]# </span>systemctl enable ntpd.service</div> | ||
| + | <pre class="computerOutput"> | ||
| + | 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 | ||
| + | ============================================================================== | ||
| + | 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 | ||
| + | </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.
