added standalone entry for ublock origin

wiki/deskreen.md

@@ -2,4 +2,4 @@
 
 [Deskreen](https://github.com/pavlobu/deskreen) is a tool for [Linux](/wiki/linux.md),
 [Windows](/wiki/windows.md) and MacOS that allows to extend the screen of a device with Deskreen
-installed to a device with any web browser.
+installed to a device with any [web browser](/wiki/web_browser.md).

wiki/docker.md

@@ -10,7 +10,7 @@ Due to easy handling and reproducable environments it is a useful tool.
 
 Another possibility is to try the official convenience script.
 To get and execute it run the following in your
-[terminal](/wiki/system_console.md).
+[terminal](/wiki/linux/system_console.md).
 
 ```sh
 curl -fsSL https://get.docker.com -o get-docker.sh
@@ -21,7 +21,7 @@ sudo sh get-docker.sh
 
 This section addresses various features of Docker.
 
-### virtualize Operating Systems
+### Virtualize Operating Systems
 
 Docker is a tool that can be used to virtualize different programs and softwares.
 Especially for containerizing and virtualizing operating systems (mostly based on
@@ -69,3 +69,22 @@ the [web browser](/wiki/web_browser.md) or [VNC](/wiki/vnc.md).
 For this
 [jlesages baseimage-gui container](https://hub.docker.com/r/jlesage/baseimage-gui)
 can be used.
+
+## Troubleshooting 
+
+This section will focus on errors and the fixing of errors of docker.
+
+### `Error saving credentials: 'Cannot autolaunch D-Bus without X11 $DISPLAY'`
+
+As explained by 
+[gotam19 in a Docker forum post](https://forums.docker.com/t/docker-login-fails-with-error-message-saving-credentials-cannot-autolaunch-d-bus-without-x11-display/77789)
+this error message only occurs on [Linux](/wiki/linux.md) when trying to login or pulling a Docker
+image.
+To fix it install  [GPG](/wiki/linux/gpg.md) and the `pass`
+[package](/wiki/linux/package_manager.md).
+Afterwards running the following command should will perform the login to the Docker servers and
+the error message should not come up again.
+
+```sh 
+docker login
+```

wiki/firefox.md

@@ -60,8 +60,7 @@ The following add-ons increase the security or privacy.
   - [Exclude pages from](http://www.jeffersonscher.com/gm/google-hit-hider/)
     [search results](/wiki/search_engine.md)
   - [Auto close YouTube ads](https://greasyfork.org/en/scripts/9165-auto-close-youtube-ads)
-- [uBlock Origin](https://addons.mozilla.org/en-GB/firefox/addon/ublock-origin)
-  blocks unwanted content like ads.
+- [uBlock Origin](/wiki/ublock_origin.md) is an ad blocker.
 - [User-Agent Switcher and Manager](https://addons.mozilla.org/en-GB/firefox/addon/user-agent-string-switcher)
   spoofs websites that try to gather information about your webbrowser.
 

wiki/game/steam.md

@@ -95,7 +95,7 @@ It will display the list of games inside the wishlist.
 Identify the game that has been removed and is not shown in the wishlist
 anymore.
 Remember the `appid` of the game
-Then run the following command inside the [console](/wiki/system_console.md) and
+Then run the following command inside the [console](/wiki/linux/system_console.md) and
 change `<appid>` accordingly.
 
 ```js

wiki/imagemagick.md

@@ -6,7 +6,7 @@ displaying, creating and editing (raster) images.
 ## Usage
 
 The following section addresses different uses ImageMagick.
-For most of ImageMagicks features the [command-line interface](/wiki/system_console.md) can be used.
+For most of ImageMagicks features the [command-line interface](/wiki/linux/system_console.md) can be used.
 
 ## Rotate an Image
 

wiki/linux/bluez.md

@@ -25,6 +25,6 @@ The Bluetooth features can be managed by different types of front-ends.
 - `bluetoothctl` is a command-line interface included in the `bluez-utils`
   package
 - `bluetuith` can be used as a bluetooth manager with a
-  [terminal](/wiki/system_console.md) user interface.
+  [terminal](/wiki/linux/system_console.md) user interface.
   It is included in a package of the same name, that needs to be installed
   before usage.

wiki/linux/gnirehtet.md

@@ -0,0 +1,31 @@
+# Gnirehtet
+
+[Gnirehtet](https://github.com/Genymobile/gnirehtet) provides a reverse tethering setup for
+[Android](/wiki/android.md) [smartphones](/wiki/smart_device.md#smartphones-and-tablet-computers).
+
+## Setup
+
+Many [Linux](/wiki/linux.md) [package managers](/wiki/linux/package_manager.md) 
+package Gnirehtet in the `gnirehtet` package.
+
+## Usage
+
+This section addresses the usage of Gnirehtet.
+
+## Setting Up and Running Reverse Tethering
+
+The following command can be used to setup the reverse tethering and also run it.
+For it to work the mobile device has to enable `USB Debugging` so Gnirehtet can automatically be
+installed (which is internally done using `adb`).
+
+```sh 
+gnirehtet run
+```
+
+Alternatively and only after being set up correctly the reverse tethering can be started and
+stopped with the corresponding two commands that follow.
+
+```sh 
+gnirehtet start
+gnirehtet stop
+```

wiki/linux/gpg.md

@@ -6,7 +6,8 @@ It is used to savely encrypt and decrypt messages or files using assymetric encr
 
 ## Setup
 
-On most linux distributions GPG can be installed with the `gnupg` package.
+On most linux distributions GPG can be installed with the `gnupg` package. 
+Sometimes it is also called `gnupg2`.
 
 ## Usage
 

wiki/linux/khard.md

@@ -1,7 +1,7 @@
 # Khard
 
 [Khard](https://github.com/lucc/khard) is a adressbook that runs in your
-[terminal](/wiki/system_console.md).
+[terminal](/wiki/linux/system_console.md).
 You can sync it with [vdirsyncer](vdirsyncer.md).
 
 ## Setup

wiki/linux/neomutt.md

@@ -1,6 +1,6 @@
 # NeoMutt
 
-Neomutt is a mail program that runs in your [terminal](/wiki/system_console.md).
+Neomutt is a mail program that runs in your [terminal](/wiki/linux/system_console.md).
 It can be easily configured using mutt-wizard.
 
 ## Setup

wiki/linux/networkmanager.md

@@ -8,7 +8,7 @@ It is used to set up [Wi-Fi](/wiki/linux/wi-fi.md).
 
 NetworkManager can be installed with the `networkmanager` package on most linux
 distributions which provides daemon aswell as `nmcli` a command line interface
-and `nmtui` a [terminal](/wiki/system_console.md) user interface for
+and `nmtui` a [terminal](/wiki/linux/system_console.md) user interface for
 configuration.
 Additionally `nm-connection-editor` can be installed for a graphical user
 interface.

wiki/linux/papis.md

@@ -84,7 +84,7 @@ The command-line output will show the address to reach the service.
 papis serve
 ```
 
-### Create a BibTeX file
+### Export Library to BibTeX file
 
 A BibTeX file containing all the entries of all the libraries can be created by running the
 following command.
@@ -99,7 +99,7 @@ papis export --all --format bibtex --out lib.bib
 The cache of Papis can be cleared by running the following command.
 
 ```sh
-papis --cc
+papis cache clear
 ```
 
 ### Import Entries from a BibTeX File
@@ -126,11 +126,33 @@ The path for that can be found in the [config file](#configuration).
 mv tmp-db/* /path/to/your/library/folder/
 ```
 
-Finally the cache needs to be cleared for Papis to display the new entries correctly.
+Finally the cache needs to be cleared
+[as described in the corresponding section](#clearing-the-cache) for Papis to display the new
+entries correctly.
 
-```sh
-papis --cc
+### Changing the Default Names of the Library
+
+The changing of the default names is done by changing the [config file](#configuration).
+The following lines are an example which will change the default file, folder and reference names.
+
+```txt
+add-file-name = {doc[author_list][0][family]}_{doc[year]}_-_{doc[title]}
+add-folder-name = {doc[author_list][0][family]}_{doc[year]}_-_{doc[title]}
+ref-format = {doc[author_list][0][family]}{doc[year]}
 ```
 
-Finally the cache needs to be [cleared](#clearing-the-cache) for Papis to display the new entries
-correctly.
+Doing this the existing entries, its files, folders and references will not be renamed.
+To achieve a factual renaming of all the entries in a library,
+[export the library](#export-library-to-bibtex-file), remove all entries from within it and then 
+[import the entries](#import-entries-from-a-bibtex-file) into it again.
+
+### Adding Files to Existing Entry
+
+To add files - for example PDF files to an existing entry run the following command.
+`<file>` is the path to the (PDF-)file and `<library>` is the name of the library to add to.
+After running the command a [TUI](comm) will open to select the entry to which the file will be
+added.
+
+```sh
+papis addto --files <file> <library>
+```

wiki/linux/playerctl.md

@@ -32,6 +32,6 @@ playerctl previous
 ## Using Hotkeys
 
 Hotkeys can be more accessible than typing the commands to start or stop music
-in the [terminal](/wiki/system_console.md).
+in the [terminal](/wiki/linux/system_console.md).
 With [SXHKD](/wiki/linux/sxhkd.md#setting-a-hotkey) commands from the CLI can
 be set to a hotkey.

wiki/linux/shell.md

@@ -2,7 +2,7 @@
 
 A shell is a command-line interpreter that provides a command-line interface to
 interact with the many unix-like system.
-It is usually used in the [system console](/wiki/system_console.md)
+It is usually used in the [system console](/wiki/linux/system_console.md)
 
 ## Unix Shells
 

wiki/linux/suckless.md

@@ -7,7 +7,7 @@ Notable works of Suckless are the following.
 - [dwm](https://dwm.suckless.org/) is a window manager
 - [ii](https://tools.suckless.org/ii/) is an IRC client
 - [slock](https://tools.suckless.org/slock/) is a screen locker
-- [st](https://st.suckless.org/) is a [terminal](/wiki/system_console.md)
+- [st](https://st.suckless.org/) is a [terminal](/wiki/linux/system_console.md)
 
 Additionally to this Suckless maintains a list of free and open-source software that is endorsed by
 Suckless.

wiki/linux/system_console.md

@@ -3,7 +3,7 @@
 A system console is used for entering data into a computer and communicating
 with it.
 It mostly uses a keyboard for input aswell as a screen for displaying results.
-Additionally a terminal is used.
+The word system console is often used synonymous with the word terminal.
 
 ## Terminals
 

wiki/linux/todoman.md

@@ -1,7 +1,7 @@
 # Todoman
 
 [todoman](https://github.com/pimutils/todoman) is a todolist you can use in your
-[terminal](/wiki/system_console.md).
+[terminal](/wiki/linux/system_console.md).
 You can sync it using [vdirsyncer](vdirsyncer.md)
 
 ## Setup

wiki/linux/wayland.md

@@ -2,3 +2,16 @@
 
 [Wayland](https://wayland.freedesktop.org/) is a replacement for the
 [X11 window system](/wiki/linux/x_window_system.md).
+
+## Usage
+
+This section addresses the usage of Wayland.
+
+### Display wlroots Screens
+
+To list all the attached screens and displays the following command can be used.
+For this to work the compositor needs to use wlroots.
+
+```sh
+wlr-randr
+```

wiki/linux/wayvnc.md

@@ -0,0 +1,27 @@
+# wayvnc
+
+[wayvnc](https://github.com/any1/wayvnc) is a VNC server for [Linux](/wiki/linux.md) systems using
+[Waylands](/wiki/linux/wayland.md) compositors using wlroots.
+To use wayvnc the system with the server has to be on the same network as the client.
+This is also explained in the [screen sharing entry](/wiki/screen-sharing.md).
+
+## Setup
+
+Many [Linux](/wiki/linux.md) [package managers](/wiki/linux/package_manager.md) 
+package wayvnc in the `wayvnc` package.
+
+## Usage
+
+This section addresses the usage of wayvnc.
+
+### Starting and Running 
+
+The following command can be used to start the server.
+`<ip>` describes the IPs the server can be reached by (for example `0.0.0.0`) and `<screen>` is a
+placeholder for the screen that will be shared (for example `HDMI-A-1`).
+The name of the screen can be retrieved by using
+[wlroots](/wiki/linux/wayland.md#display-wlroots-screens).
+
+```sh
+wayvnc <ip> --output=<screen> --render-cursor
+```

wiki/mail.md

@@ -20,7 +20,7 @@ If you don't have a built-in web interface for your mail-server you need some
 software to access your mails.
 And even if you have it can be useful to keep your mails synced locally on your pc.
 
-- [Neomutt](linux/neomutt.md) is a [terminal-based](/wiki/system_console.md)
+- [Neomutt](linux/neomutt.md) is a [terminal-based](/wiki/linux/system_console.md)
   mail client for linux, that has a simple interface.
 - [Thunderbird](/wiki/thunderbird.md) is a free and open source mail client which is cross
   platform.

wiki/nextcloud.md

@@ -18,3 +18,11 @@ This section addresses various features of NextCloud.
 
 You can access ownCloud via WebDAV with the link
 `https://<nextcloud instance>/remote.php/dav/files/<user>/<path to folder or file>`.
+
+### Nesting Nextcloud Data of Multiple Servers
+
+By default it is not possible for one servers files to be saved to the folder structure that is
+used for another server or to nest data from two or more servers within each other.
+This however can be conveniently avoided by using symbolic links
+(for example [symbolic links](/wiki/linux/shell.md#symbolic-links-using-ln) in
+[Linux](/wiki/linux.md)), which are not by default synchronized to NextCloud.

wiki/nginx.md

@@ -6,7 +6,7 @@
 ## Setup
 
 The software can be setup via [Docker](/wiki/docker.md) with a
-[terminal](/wiki/system_console.md) user interface program for nginx and
+[terminal](/wiki/linux/system_console.md) user interface program for nginx and
 certbot, which is called nginx-certbot-docker-tui or short ncdt.
 
 Alternatively the standalone [nginx image](./docker/nginx.md) can be

wiki/screen-sharing.md

@@ -0,0 +1,19 @@
+# Screen-Sharing
+
+Screen-sharing describes the practice of remotely accessing or displaying the contents of a screen
+or the whole desktop.
+
+## Software
+
+The following software options make it possible to share the screen of a device to another device
+in the same network.
+For this they have to be connected to the same (WiFi) network or be [tethered](/wiki/tethering.md).
+
+- [Deskreen](/wiki/deskreen.md) is a tool for [Linux](/wiki/linux.md), [Windows](/wiki/windows.md)
+  and MacOS that allows to extend the screen of a device with Deskreen installed to a device with
+  any [web browser](/wiki/web_browser.md).
+- [Weylus](https://github.com/H-M-H/Weylus) is an alternative to Deskreen and also makes it
+  possible to display the screen of a [Linux](/wiki/linux.md), [Windows](/wiki/windows.md) or MacOS
+  system on a [web browser](/wiki/web_browser.md).
+- [wayvnc](/wiki/linux/wayvnc.md) is a VNC server for [Linux](/wiki/linux.md) systems using
+  [Waylands](/wiki/linux/wayland.md) compositors using wlroots.

wiki/screen_capture.md

@@ -1,6 +1,8 @@
 # Screen Capture
 
 Screen capture describes the process of recording a computer screen.
+For the remotely displaying the screen to another device the
+[corresponding entry](/wiki/screen_sharing.md) contains tips and tricks.
 
 ## Screen Capture options
 

wiki/tethering.md

@@ -0,0 +1,18 @@
+# Tethering
+
+Tethering describes the sharing of a
+[mobile device's](/wiki/smart_device.md#smartphones-and-tablet-computers) cellular data connection
+with one or more connected computers.
+
+Tethering can be achieved by multiple options including [Bluetooth](/wiki/bluetooth.md) and WiFi
+and is usually available in the settings of [Android](/wiki/android.md) and iOS mobile devices.
+
+## Reverse Tethering
+
+Reverse Tethering describes the sharing of a computers network with a
+[mobile device](/wiki/smart_device.md#smartphones-and-tablet-computers).
+For [Linux](/wiki/linux.md) this can be achieved using [Gnirehtet](/wiki/linux/gnirehtet.md).
+
+When using USB- and Reverse Tethering make sure that the host machine does not recognize the USB
+connection towards the mobile device as eithernet connection.
+Otherwise none of the two devices will be able to connect to local or internet pages.

wiki/ublock_origin.md

@@ -0,0 +1,30 @@
+# uBlock Origin
+
+[uBlock Origin](https://ublockorigin.com) is a free and open-source [browser](/wiki/web_browser.md)
+extension fof ad blocking.
+It is available for most browsers like [Firefox](/wiki/firefox.md), its derivatives like
+[Zen](/wiki/zen_browser.md), Chrome, and Chromium based browsers like Edge, Brave and many more.
+
+## Setup
+
+The setup of the [browser](/wiki/web_browser.md) extension of uBlock Origin is based on the browser
+used and can vary slightly.
+For [Firefox](/wiki/firefox.md) it can be found in the
+[addon page](https://addons.mozilla.org/en-GB/firefox/addon/ublock-origin) and many other browser
+follow this pattern.
+
+## Troubleshooting 
+
+This section will focus on errors and the fixing of errors of uBlock Origin.
+
+### YouTube Videos Do Not Load
+
+In general [YouTube](/wiki/youtube.md) videos can be viewed with uBlock Origin removing the
+advertisements.
+It is however possible that is also blocks YouTube from loading the videos altogether.
+Most of the times this can be fixed easily as explained in a
+[Reddit post by orestaras](https://www.reddit.com/r/firefox/comments/1hipkzh/ublock_origin_no_longer_works_on_youtube).
+Open the dashboard in the extension menu.
+Under the tab `Filter List`, extend `Built-in` and uncheck `uBlock filters - Quick fixes`.
+Afterwards reload the page containing the YouTube video and it should load normally and without
+advertisements.

wiki/vnc.md

@@ -5,6 +5,6 @@ desktop of a system.
 It is based on the Remote Frame Buffer protocoll which is also named RFB.
 
 VNC is especially used for accessing graphical applications or
-[terminals](/wiki/system_console.md) of a remote server,
+[terminals](/wiki/linux/system_console.md) of a remote server,
 [dockerized](/wiki/docker.md#dockerize-a-graphical-application) or virtualized
 program.