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This shows you the differences between two versions of the page.
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linux_wiki:synchronize_time_using_other_ntp_peers [2016/09/10 16:29] billdozor [NTP: Client Peering] |
linux_wiki:synchronize_time_using_other_ntp_peers [2019/05/25 23:50] |
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| - | ====== Synchronize Time Using Other NTP Peers ====== | ||
| - | |||
| - | **General Information** | ||
| - | |||
| - | About this page/ | ||
| - | |||
| - | ---- | ||
| - | |||
| - | ====== NTP: Time Server ====== | ||
| - | |||
| - | Setting up a local NTP server in order to practice the objective of synchronizing time. | ||
| - | |||
| - | \\ | ||
| - | Install the ntp package | ||
| - | <code bash> | ||
| - | yum install ntp | ||
| - | </ | ||
| - | |||
| - | \\ | ||
| - | Enable and start ntpd | ||
| - | <code bash> | ||
| - | systemctl enable ntpd | ||
| - | systemctl start ntpd | ||
| - | </ | ||
| - | |||
| - | \\ | ||
| - | Query NTP to view status | ||
| - | <code bash> | ||
| - | ntpq -p | ||
| - | </ | ||
| - | * -p -> | ||
| - | |||
| - | \\ | ||
| - | NTP Statistics | ||
| - | <code bash> | ||
| - | ntpstat | ||
| - | </ | ||
| - | |||
| - | \\ | ||
| - | Configure NTP Pool Sources | ||
| - | <code bash> | ||
| - | vim / | ||
| - | |||
| - | # Comment out other servers, add the below | ||
| - | server 127.127.1.0 | ||
| - | </ | ||
| - | * 127.127.1.0 -> Special IP address that syncs to the local server' | ||
| - | |||
| - | \\ | ||
| - | Restart the service for the change to apply | ||
| - | <code bash> | ||
| - | systemctl restart ntpd | ||
| - | </ | ||
| - | |||
| - | \\ | ||
| - | Open the firewall for NTP | ||
| - | <code bash> | ||
| - | firewall-cmd --permanent --add-service=ntp | ||
| - | firewall-cmd --reload | ||
| - | </ | ||
| - | |||
| - | ---- | ||
| - | |||
| - | ====== NTP: Client Peering ====== | ||
| - | |||
| - | Setup a NTP client to peer/sync with the NTP server. | ||
| - | |||
| - | \\ | ||
| - | Install required package | ||
| - | <code bash> | ||
| - | yum install ntp | ||
| - | </ | ||
| - | |||
| - | \\ | ||
| - | Enable and start the service | ||
| - | <code bash> | ||
| - | systemctl enable ntpd | ||
| - | systemctl start ntpd | ||
| - | </ | ||
| - | |||
| - | \\ | ||
| - | Edit the NTP config file | ||
| - | <code bash> | ||
| - | vim / | ||
| - | |||
| - | # Comment out all server lines, add peer for the newly created NTP server | ||
| - | peer 192.168.1.200 | ||
| - | </ | ||
| - | |||
| - | \\ | ||
| - | Restart the service | ||
| - | <code bash> | ||
| - | systemctl restart ntpd | ||
| - | </ | ||
| - | |||
| - | \\ | ||
| - | Open the firewall for ntp | ||
| - | <code bash> | ||
| - | firewall-cmd --permanent --add-service=ntp | ||
| - | firewall-cmd --reload | ||
| - | </ | ||
| - | |||
| - | ---- | ||