Advanced Linux Tasks: Difference between revisions
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'''This instructions apply to Debian | '''This instructions apply to Debian 10 . [[Linux_Distribution_Versions_History|See Linux Distribution Versions History]].''' | ||
== SSH Login == | == SSH Login == | ||
* user: jetvision password: jetvision | * user: jetvision password: jetvision | ||
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== NTP == | == NTP == | ||
Comes by default with [https://chrony.tuxfamily.org/ Chrony] configured as Client and Server, preferring the local GNSS/GPS reference if available. | Comes by default with [https://chrony.tuxfamily.org/ Chrony] configured as Client and Server, preferring the local GNSS/GPS reference if available. | ||
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== Network == | == Network == | ||
Latest revision as of 16:04, 20 November 2019
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Required Linux/Unix skills to execute this task: Advanced |
This instructions apply to Debian 10 . See Linux Distribution Versions History.
SSH Login
- user: jetvision password: jetvision
For executing root/privileged tasks use sudo, eg. "sudo apt update -y && sudo apt upgrade -y".
NTP
Comes by default with Chrony configured as Client and Server, preferring the local GNSS/GPS reference if available.
As so it can work as a Stratum 1 Server, with a time accuracy at Ethernet level of about 1 μs.
Chrony configuration
Chrony comes installed and works by default without configuration on new devices.
If you have a older device with a GNSS chip which is not the Trimble SMT360 (Check under Status->GPS), then you need to edit file /etc/chrony/chrony.conf and increase refclock SOCK offset to 0.4.
To check status type:
chronyc tracking
chronyc sources
NTPD configuration
NTPD support for the Radarcape is not the best.
If you prefer to run NTPD, then you can replace it.
First enable Radarcape to output data to NTPD. On the web menu go to Settings -> General -> NTP Reference Clock Data and activate "Publish time to shared memory for NTPD or Chrony".
Then on the console type:
sudo apt update -y
sudo apt install ntp -y