Sometimes while making an attempt to connect a device through Bluetooth on your Linux Lite system, you can face a problem with connection:
Connection to BlueZ failed
Bluez daemon is not running, blueman-manager cannot continue. This is probably means that there were no Bluetooth adapters detected or Bluetooth daemon was not started.
Signal is very popular messenger and mostly is used like mobile phone application on mobile phones, but you can install it on your Linux desktop as well. I will show, how in install Signal desktop application on Linux Lite, which is Ubuntu-based distro and it means it uses the same repositories like Ubuntu linux.
Following Signal installation manual will work on every Debian-based linux distro.
All you need to to is to run following commands in your terminal
curl -s https://updates.signal.org/desktop/apt/keys.asc | sudo apt-key add
echo "deb [arch=amd64] https://updates.signal.org/desktop/apt xenial main" | sudo tee -a /etc/apt/sources.list.d/signal-xenial.list
sudo apt update && sudo apt install signal-desktop
output:
If you dont' need simple-scan application (known as "Scanner" app in your main menu) in your system, you can easily remove it by running a following command:
$ sudo apt purge simple-scan
output:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
fonts-hosny-amiri fonts-sil-scheherazade linux-headers-4.15.0-88 linux-headers-4.15.0-88-generic linux-headers-4.15.0-91
linux-headers-4.15.0-91-generic linux-image-4.15.0-88-generic linux-image-4.15.0-91-generic linux-modules-4.15.0-88-generic
linux-modules-4.15.0-91-generic linux-modules-extra-4.15.0-88-generic linux-modules-extra-4.15.0-91-generic
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
simple-scan*
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
After this operation, 1,303 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 391612 files and directories currently installed.)
Removing simple-scan (3.28.0-0ubuntu1) ...
Processing triggers for desktop-file-utils (0.23-1ubuntu3.18.04.2) ...
Processing triggers for libglib2.0-0:i386 (2.56.4-0ubuntu0.18.04.6) ...
Processing triggers for libglib2.0-0:amd64 (2.56.4-0ubuntu0.18.04.6) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for gnome-menus (3.13.3-11ubuntu1.1) ...
Processing triggers for mime-support (3.60ubuntu1) ...
Common security and privacy approaches are working not only in corporate sphere. Even you as a regular admin of your home system, have to follow security policites to make your system secure. Even in case you administrate your system not under root user (using only sudo command to make needed operations), you have to change your root password from time to time. Linux Lite is an Ubuntu based linux distribution and considering your intense to change root password, it works the same way like in other linux system.
Only thing you have to do is to run following command in your terminal:
$ passwd
If you plan to install one of the most popular server on your system (Apache2), you should start with running a command:
$ sudo apt-get install apache2
output:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
fonts-hosny-amiri fonts-sil-scheherazade linux-headers-4.15.0-88
linux-headers-4.15.0-88-generic linux-image-4.15.0-88-generic
linux-modules-4.15.0-88-generic linux-modules-extra-4.15.0-88-generic
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
apache2-bin apache2-data apache2-utils libapr1 libaprutil1
libaprutil1-dbd-sqlite3 libaprutil1-ldap
Suggested packages:
apache2-doc apache2-suexec-pristine | apache2-suexec-custom
The following NEW packages will be installed:
apache2 apache2-bin apache2-data apache2-utils libapr1 libaprutil1
libaprutil1-dbd-sqlite3 libaprutil1-ldap
0 upgraded, 8 newly installed, 0 to remove and 20 not upgraded.
Need to get 1,604 kB of archives.
After this operation, 6,497 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 libapr1 amd64 1.6.3-2 [90.9 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 libaprutil1 amd64 1.6.1-2 [84.4 kB]
Get:3 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 libaprutil1-dbd-sqlite3 amd64 1.6.1-2 [10.6 kB]
Get:4 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 libaprutil1-ldap amd64 1.6.1-2 [8,764 B]
Get:5 http://us.archive.ubuntu.com/ubuntu bionic-security/main amd64 apache2-bin amd64 2.4.29-1ubuntu4.13 [1,070 kB]
Get:6 http://us.archive.ubuntu.com/ubuntu bionic-security/main amd64 apache2-utils amd64 2.4.29-1ubuntu4.13 [83.8 kB]
Get:7 http://us.archive.ubuntu.com/ubuntu bionic-security/main amd64 apache2-data all 2.4.29-1ubuntu4.13 [160 kB]
Get:8 http://us.archive.ubuntu.com/ubuntu bionic-security/main amd64 apache2 amd64 2.4.29-1ubuntu4.13 [95.1 kB]
Fetched 1,604 kB in 16s (101 kB/s)
Selecting previously unselected package libapr1:amd64.
(Reading database ... 355358 files and directories currently installed.)
Preparing to unpack .../0-libapr1_1.6.3-2_amd64.deb ...
Unpacking libapr1:amd64 (1.6.3-2) ...
Selecting previously unselected package libaprutil1:amd64.
Preparing to unpack .../1-libaprutil1_1.6.1-2_amd64.deb ...
Unpacking libaprutil1:amd64 (1.6.1-2) ...
Selecting previously unselected package libaprutil1-dbd-sqlite3:amd64.
Preparing to unpack .../2-libaprutil1-dbd-sqlite3_1.6.1-2_amd64.deb ...
Unpacking libaprutil1-dbd-sqlite3:amd64 (1.6.1-2) ...
Selecting previously unselected package libaprutil1-ldap:amd64.
Preparing to unpack .../3-libaprutil1-ldap_1.6.1-2_amd64.deb ...
Unpacking libaprutil1-ldap:amd64 (1.6.1-2) ...
Selecting previously unselected package apache2-bin.
Preparing to unpack .../4-apache2-bin_2.4.29-1ubuntu4.13_amd64.deb ...
Unpacking apache2-bin (2.4.29-1ubuntu4.13) ...
Selecting previously unselected package apache2-utils.
Preparing to unpack .../5-apache2-utils_2.4.29-1ubuntu4.13_amd64.deb ...
Unpacking apache2-utils (2.4.29-1ubuntu4.13) ...
Selecting previously unselected package apache2-data.
Preparing to unpack .../6-apache2-data_2.4.29-1ubuntu4.13_all.deb ...
Unpacking apache2-data (2.4.29-1ubuntu4.13) ...
Selecting previously unselected package apache2.
Preparing to unpack .../7-apache2_2.4.29-1ubuntu4.13_amd64.deb ...
Unpacking apache2 (2.4.29-1ubuntu4.13) ...
Setting up libapr1:amd64 (1.6.3-2) ...
Setting up apache2-data (2.4.29-1ubuntu4.13) ...
Setting up libaprutil1:amd64 (1.6.1-2) ...
Setting up libaprutil1-ldap:amd64 (1.6.1-2) ...
Setting up libaprutil1-dbd-sqlite3:amd64 (1.6.1-2) ...
Setting up apache2-utils (2.4.29-1ubuntu4.13) ...
Setting up apache2-bin (2.4.29-1ubuntu4.13) ...
Setting up apache2 (2.4.29-1ubuntu4.13) ...
Enabling module mpm_event.
Enabling module authz_core.
Enabling module authz_host.
Enabling module authn_core.
Enabling module auth_basic.
Enabling module access_compat.
Enabling module authn_file.
Enabling module authz_user.
Enabling module alias.
Enabling module dir.
Enabling module autoindex.
Enabling module env.
Enabling module mime.
Enabling module negotiation.
Enabling module setenvif.
Enabling module filter.
Enabling module deflate.
Enabling module status.
Enabling module reqtimeout.
Enabling conf charset.
Enabling conf localized-error-pages.
Enabling conf other-vhosts-access-log.
Enabling conf security.
Enabling conf serve-cgi-bin.
Enabling site 000-default.
Created symlink /etc/systemd/system/multi-user.target.wants/apache2.service → /lib/systemd/system/apache2.service.
Created symlink /etc/systemd/system/multi-user.target.wants/apache-htcacheclean.service → /lib/systemd/system/apache-htcacheclean.service.
insserv: warning: current start runlevel(s) (empty) of script `apache-htcacheclean' overrides LSB defaults (2 3 4 5).
insserv: warning: current stop runlevel(s) (0 1 2 3 4 5 6) of script `apache-htcacheclean' overrides LSB defaults (0 1 6).
Processing triggers for libc-bin (2.27-3ubuntu1) ...
Processing triggers for systemd (237-3ubuntu10.39) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for ufw (0.36-0ubuntu0.18.04.1) ...
Processing triggers for ureadahead (0.100.0-21) ...
ureadahead will be reprofiled on next reboot
Linux Lite is using standard Ubuntu repositories, and qBittorrent is not part of it. So we have to add additional repository and then install qBittorrent client from it.
$ sudo add-apt-repository ppa:qbittorrent-team/qbittorrent-stable
Then update the repo:
$ sudo apt-get update