Secure Mosquitto service

Trying to configure secure Moscuitto service on Linux. mosquitto.conf: log_type all allow_anonymous false password_file /etc/mosquitto/mosquitto_users.txt pid_file /var/run/mosquitto.pid persistence true persistence_location /var/lib/mosquitto/ log_dest file /var/log/mosquitto/mosquitto.log port 8883 cafile /etc/mosquitto/ca_certificates/ca.crt keyfile /etc/mosquitto/ca_certificates/server.key certfile /etc/mosquitto/ca_certificates/server.crt tls_version tlsv1 I coppied ca.crt to another linux machine and run test programs: mosquitto_sub -h 192.168.1.8 -t sensor –cafile ca.crt -p 8883 Have…

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Error while starting gnome-control-center

I while starting gnome-control-center on kubuntu 19.04, I got this error I can find any working solution: gnome-control-center (gnome-control-center:3239): Gtk-WARNING **: 16:12:56.364: Theme parsing error: gtk.css:68:35: The style property GtkButton:child-displacement-x is deprecated and shouldn’t be used anymore. It will be removed in a future version (gnome-control-center:3239): Gtk-WARNING **: 16:12:56.364: Theme parsing error: gtk.css:69:35: The style…

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Cannot install mysql-server due to bad uninstallation of mysql

I recently uninstalled mysql which I think I didn’t do properly. I think I might have created a circular dependency. Running sudo apt-get install mysql-server gives the following error: Options marked [*] produce a lot of output – pipe it through ‘less’ or ‘more’ ! dpkg: error processing archive /tmp/apt-dpkg-install-hpScKN/0-mysql-common_5.8+1.0.4_all.deb (–unpack): subprocess new pre-installation script…

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