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Is there a way to get the last time my raspberry pi connects to the wifi network defined in wpa_supplicant.conf?

Thanks

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The solution is to install an NTP client, and configure a script on the directories that have scripts to run after the interfaces go up.

You would want to execute a script after the interface goes up.

If In Debian do:

$sudo apt-get install ntpdate

The create the following script with vi

sudo vi /etc/network/if-up.d/ntpdate

and place in the vi file the command:

ntpdate -b ntp_server_IP

then finish with:

sudo chmod a+rx /etc/network/if-up.d/ntpdate

Please not the whilst there are other ntp clientes, the ntpdate choice is not accidental. ntpdate -b permits to raise/bump the time on your system in one go without it having being done in small bumps.

  • Why the ntp client to get the date? – Matteo Nov 20 '15 at 18:06
  • NTP is THE Internet-wide standard to keep equipments synced in time. – Rui F Ribeiro Nov 20 '15 at 18:08
  • Yeah i know what ntp is. But i didn't understand how and where is the time of connection saved. – Matteo Nov 20 '15 at 18:11
  • After the script you provided is being executed – Matteo Nov 20 '15 at 18:11
  • ntpdate gets the time from a NTP server and sets the time with that data in a Unix server. – Rui F Ribeiro Nov 20 '15 at 18:12

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