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--- surv_camera_2 [2025/03/15 08:53] – memeruiz
+++ surv_camera_2 [2025/03/16 19:07] (current) – memeruiz
@@ Line 66: / Line 66: @@
 (or use the ip number that "ip add" shows for wifi)
+**journal to permanent storage**
+  * Edit /etc/systemd/journald.conf and change the following:
+  Storage=persistent
+  Compress=no
+  SystemMaxUse=300M
+  MaxFileSec=1month
+  * Restart journald:
+  sudo systemctl restart systemd-journald.service
+**Hardware Watchdog**
+  * Edit /etc/systemd/system.conf and change the following:
+  RuntimeWatchdogSec=15s
+  RebootWatchdogSec=10min
+  * Reload systemd config file:
+  sudo systemctl daemon-reload
+  * Test watchdog with a fork bomb. Create a file called /tmp/test.sh with:
+  #!/bin/bash
+  :(){ :|:& };:
+  * Run it:
+  sudo bash /tmp/test.sh
+  * After some seconds it should produce a reboot
 **Connect your first camera to first camera port**
@@ Line 271: / Line 308: @@
   sudo systemctl start wg-quick@wg0
   sudo systemctl enable wg-quick@wg0
+  This methods doesn't work for sharing with other wireguard clients
 **Configure the openvpn VPN**
+  * Install openvpn
+  sudo apt-get install openvpn
+  * copy config file and certificates:
+  cd ~/local/src/repos/www.memelabs.net/pi-security-camera-utils
+  sudo cp -r openvpn /etc/
+  * Start and enable openvpn client service:
+  sudo systemctl start openvpn-client@camrem0
+  sudo systemctl enable openvpn-client@camrem0
+  * In the openvpn server config file be sure to comment out all "push and route" lines. Specially "redirect-gateway". Be sure that this config file includes the line "client-to-client"
 **Configure motion Telegram notification**
+  * Edit both files "/etc/motionplus/motionplus0.conf" and "/etc/motionplus/motionplus1.conf" and uncomment the following line:
+on_movie_start /home/memeruiz/local/src/repos/www.memelabs.net/pi-security-camera-utils/motionpush/motionpush.sh
+  * Messages should now be arriving to Telegram!
 **Configure motion video file upload**
@@ Line 294: / Line 356: @@
 **Configure network watchdog**
+  * Copy the ping watchdog systemd service
+  sudo cp /home/memeruiz/local/src/repos/www.memelabs.net/pi-security-camera-utils/systemd/ping_watchdog.service /etc/systemd/system/
+  * Start and enable the service:
+  sudo systemctl start ping_watchdog.service
+  sudo systemctl enable ping_watchdog.service
 **Using GPIOs for IR lights, normal lights and Alarm/beeper**
@@ Line 325: / Line 396: @@
+**Sending and receiving SMSs**
+  * polkit only allows to list and read smss for users. To send or delete SMSs create and edit file: /etc/polkit-1/rules.d/50-mmcli-send-sms.rules with the following contents:
+  polkit.addRule(function(action, subject) {
+      if (action.id == "org.freedesktop.ModemManager1.Messaging"
+          && subject.isInGroup("memeruiz") )
+      {
+          return polkit.Result.YES;
+      }
+  });
+  * Restart polkit:
+  sudo systemctl restart polkit.service
+  * To list modems:
+  mmcli -L
+  * To list SMSs on modem:
+  mmcli -m 0 --messaging-list-sms
+  * To show an SMS:
+  mmcli -s 0
+  * To create and send an SMS:
+  mmcli -m 0 --messaging-create-sms="text='hellow world',number='+50683096020'"
+  mmcli -s 3 --send
+  * To delete an SMS:
+  mmcli -m 0 --messaging-delete-sms=0
+**Shrink raspberry pi SD images**
+https://github.com/qrti/shrink
+**Calculate power consumption**
+https://forums.raspberrypi.com/viewtopic.php?t=367244
+https://github.com/jfikar/RPi5-power
+https://github.com/librerpi/rpi-tools/blob/master/pi5_voltage.py