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<p><span class="autocomment">MQTT</span></p> <p><b>New page</b></p><div>[[Category:Raspi]][[Category:Linux]]<br /> Stuff for my Raspi / Raspi3 / Raspi4<br /> ===basics===<br /> <br /> default login: pi/raspberry<br /> <br /> initial package updates<br /> sudo apt-get update<br /> sudo apt-get dist-upgrade<br /> sudo apt purge -y cloud-init <br /> sudo apt-get autoremove --purge<br /> sudo apt-get install vim mc git<br /> <br /> ===raspi-config===<br /> sudo raspi-config<br /> - Update<br /> - Network : set hostname<br /> - Interfacing options : Enable SSH<br /> - Localization -&gt; change Keyboard Layout<br /> - advanced -&gt; disable logging (to reduce SD usage)<br /> - Locale -&gt; en.US.UTF-8<br /> <br /> for locale issues run<br /> sudo dpkg-reconfigure locales<br /> <br /> ===SSH password-free-login===<br /> ssh-copy-id pi@raspi<br /> <br /> ===Static IP===<br /> (not used, set via DHCP server FritzBox instead)<br /> sudo nmtui<br /> <br /> ===NTP Enable Time Sync===<br /> sudo apt-get install systemd-timesyncd<br /> sudo timedatectl status<br /> # sudo timedatectl set-ntp true<br /> <br /> ===pi-hole, unbound, log in ram, ... ===<br /> https://forum.kuketz-blog.de/viewtopic.php?f=53&amp;t=8759<br /> which IPv6 address?<br /> ip a ls |grep fd00<br /> <br /> ===config.txt===<br /> ====Location====<br /> Raspbian old:<br /> sudo vim /boot/firmware/config.txt <br /> <br /> Raspbian old:<br /> sudo vim /boot/config.txt <br /> <br /> Libreelec:<br /> mount -o remount,rw /flash<br /> nano /flash/config.txt<br /> mount -o remount,ro /flas<br /> <br /> ====Power Saving====<br /> see https://blues.io/blog/tips-tricks-optimizing-raspberry-pi-power/<br /> <br /> ====disable Wifi and Bluetooth====<br /> [all]<br /> # disable wifi<br /> dtoverlay=disable-wifi<br /> # disable bluetooth<br /> dtoverlay=disable-bt<br /> <br /> ====Disable Onboard LEDs====<br /> [pi4]<br /> # Disable the PWR LED<br /> dtparam=pwr_led_trigger=none<br /> dtparam=pwr_led_activelow=off<br /> # Disable the Activity LED<br /> dtparam=act_led_trigger=none<br /> dtparam=act_led_activelow=off<br /> # Disable ethernet port LEDs<br /> dtparam=eth_led0=4<br /> dtparam=eth_led1=4<br /> <br /> ===cmdline.txt===<br /> add &quot;quiet&quot; to remove kernel boot messages<br /> sudo vim /boot/firmware/cmdline.txt<br /> console=tty1 root=PARTUUID=eedf3243-02 rootfstype=ext4 fsck.repair=yes rootwait quiet cfg80211.ieee80211_regdom=DE<br /> <br /> ===CPU===<br /> from https://raspberrypi.stackexchange.com/questions/103653/setting-the-maximum-clock-speed<br /> <br /> set powersave at runtime<br /> sudo apt install cpufrequtils<br /> sudo cpufreq-set -g powersave<br /> <br /> ===systemctl_Services===<br /> see [[Linux_Bash_Shell_Scripting#systemctl_Services]]<br /> <br /> <br /> ===Install uv===<br /> https://docs.astral.sh/uv/getting-started/installation/<br /> # install<br /> curl -LsS f https://astral.sh/uv/install.sh | sh<br /> # update<br /> uv self update<br /> <br /> ===MQTT===<br /> sudo apt install mosquitto mosquitto-clients<br /> <br /> sudo vim /etc/mosquitto/mosquitto.conf<br /> per_listener_settings true<br /> allow_anonymous false<br /> listener 1883<br /> password_file /etc/mosquitto/passwd<br /> # see http://www.steves-internet-guide.com/mqtt-username-password-example/<br /> <br /> sudo vim /etc/environment<br /> PW_MQTT=XXX<br /> <br /> ===Other===<br /> grant access to tty to user pi<br /> sudo usermod -a -G tty pi</div>

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