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      xelatex-thesis/modules/ROOT/nav.adoc
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      xelatex-thesis/modules/ROOT/pages/index-setup.adoc

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* xref:index.adoc[list]
* xref:index-setup.adoc[examples]

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= Setup
= examples
TIP: Tested on a Raspberry Pi with "Buster"
== Intro
== Bold, italics and underlining
networkd is a small and lean service to configure network interfaces, designed mostly for server use cases in a world with hotplugged and virtualized networking. Its configuration is similar in spirit and abstraction level to ifupdown, but you don't need any extra packages to configure bridges, bonds, vlan etc. It is not very suitable for managing WLANs yet; NetworkManager is still much more appropriate for such Desktop use cases.
set of examples
There are mainly three setups to have a peer to peer network:
* unprotected ad-hoc interface by configuring the WiFi device
* unprotected ad-hoc interface using wpa_supplicant (Recommended)
* Only with suitable (RSN-IBSS capable) USB dongle:
* protected ad-hoc interface using wpa_supplicant and WPA encryption (best solution if possible)
* ad-hoc interface with additional USB/WiFi dongle for uplink to internet router
== Install systemd-networkd
=== deinstall classic networking and install it!
* *sudo su* # if not already done
*deinstall*
[source,sh]
[source,latex]
----
systemctl daemon-reload
systemctl disable --now ifupdown dhcpcd dhcpcd5 isc-dhcp-client isc-dhcp-common rsyslog
apt --autoremove purge -f ifupdown dhcpcd dhcpcd5 isc-dhcp-client isc-dhcp-common rsyslog
rm -r /etc/network /etc/dhcp
# setup/enable systemd-resolved and systemd-networkd
systemctl disable --now avahi-daemon libnss-mdns
apt --autoremove -f purge avahi-daemon
apt install -f libnss-resolve
ln -sf /run/systemd/resolve/stub-resolv.conf /etc/resolv.conf
apt-mark hold avahi-daemon dhcpcd dhcpcd5 ifupdown isc-dhcp-client isc-dhcp-common libnss-mdns openresolv raspberrypi-net-mods rsyslog
systemctl enable systemd-networkd.service systemd-resolved.service
----
The following example collects the various code fragments contained in this article so that you can open them all together in Overleaf.
== Install optional
First example, bold, italics and underline:
[source,sh]
----
apt-get install raspberrypi-kernel-headers -y
----
Some of the \textbf{greatest} discoveries in \underline{science} were made by \textbf{\emph{accident}}.
\vspace{1.5cm}
Example of italicized text:
=== setup wired connection
Some of the greatest discoveries in science were made by \emph{accident}.
*wired connection*
[source,sh]
----
cat > /etc/systemd/network/04-wired.network <<EOF
[Match]
Name=e*
[Network]
## Uncomment only one option block
# Option: using a DHCP server and multicast DNS
LLMNR=no
LinkLocalAddressing=no
MulticastDNS=yes
DHCP=ipv4
# Option: using link-local ip addresses and multicast DNS
#LLMNR=no
#LinkLocalAddressing=yes
#MulticastDNS=yes
# Option: using static ip address and multicast DNS
Address=192.168.1.18/24 // <1>
Gateway=192.168.1.1 // <2>
DNS=8.8.8.8 1.1.1.1 // <3>
MulticastDNS=yes
EOF
----
<1> use your settings
<2> use your settings
<2> use your settings
\vspace{1.5cm}
Example of boldface text:
=== Reboot
Some of the \textbf{greatest} discoveries in science were made by accident.
NOTE: reboot
\vspace{1.5cm}
== Config
Example of underlined text:
Some of the greatest discoveries in \underline{science} were made by accident.
=== NSS
\vspace{1.5cm}
*config nss*
[source,sh]
----
apt --autoremove purge avahi-daemon
apt-mark hold avahi-daemon
apt install -f libnss-resolve
echo ""
echo "For troubleshooting you may have a look at /etc/nsswitch.conf. It should contain a line like this:"
echo ""
echo "hosts: files resolve [!UNAVAIL=return] dns"
echo ""
echo ""
echo ""
echo ""
----
Example of emphasized text in different contexts:
Some of the greatest \emph{discoveries} in science were made by accident.
=== DNS
\textit{Some of the greatest \emph{discoveries} in science were made by accident.}
\textbf{Some of the greatest \emph{discoveries} in science were made by accident.}
*config dns*
[source,sh]
----
echo ""
echo "Configure DNS stub listener interface"
echo ""
echo "Here we have to symlink /etc/resolv.conf to the stub listener:"
echo ""
echo " exec4you ln -sf /run/systemd/resolve/stub-resolv.conf /etc/resolv.conf"
ln -sf /run/systemd/resolve/stub-resolv.conf /etc/resolv.conf
echo ""
== Font sizes, families, and styles
echo "Check name resolution"
resolvectl status
set of examples
[source,latex]
----
\documentclass{article}
\begin{document}
%Example of different font sizes and types
This is a simple example, {\tiny this will show different font sizes} and also \textsc{different font styles}.
== unprotected ad-hoc interface using wpa_supplicant
Follow *Install systemd-networkd*
\vspace{1cm}
Then come back here.
%Example of different font sizes and types
In this example the {\huge huge font size} is set and the {\footnotesize Foot note size also}. There's a fairly large set of font sizes.
TIP: unprotected
\vspace{1cm}
* *sudo su* # if not already done
%Example of different font sizes and types
In this example, a command and a switch are used. \texttt{A command is used to change the style of a sentence}.
[source,sh]
----
\sffamily
A switch changes the style from this point to the end of the document unless another switch is used.
\rmfamily
cat > /etc/wpa_supplicant/wpa_supplicant-wlan0.conf <<EOF
ctrl_interface=DIR=/run/wpa_supplicant GROUP=netdev
update_config=1
p2p_disabled=1
country=GR
network={
ssid="IBSS-RPiNet"
frequency=2412 # channel 1
mode=1 # IBSS (ad-hoc, peer-to-peer)
key_mgmt=NONE
}
EOF
\vspace{1cm}
chmod 600 /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
systemctl enable wpa_supplicant@wlan0.service
%Example of different font sizes and types
Part of this text is written \textsl{in different font style} to highlight it.
\end{document}
----
echo ""
echo "enabled4you"
echo "systemctl enable wpa_supplicant@wlan0.service"
echo ""
== Font typefaces
set of examples
[source,latex]
----
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{tgbonum}
\begin{document}
This document is a sample document to
test font families and font typefaces.
=== Reboot
{\fontfamily{qcr}\selectfont
This text uses a different font typeface
}
\end{document}
----
NOTE: Reboot
=== Check
== Paragraph formatting
[source,sh]
set of examples
[source,latex]
----
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
echo ""
echo "Check with:"
echo ""
echo "iw dev"
echo ""
echo "iw dev wlan0 link"
echo ""
echo "ip addr"
echo ""
echo "sudo iw dev wlan0 scan | grep -B8 -A3 "IBSS-RPiNet""
echo ""
# From another ad hoc connected device you should be able to
echo "From another ad hoc connected device you should be able to"
echo ""
echo "ping -c3 raspberrypi.local"
echo ""
----
\setlength{\parindent}{4em}
\setlength{\parskip}{1em}
\renewcommand{\baselinestretch}{2.0}
== protected ad-hoc interface using wpa_supplicant
\begin{document}
This is the first paragraph, contains some text to test the paragraph
interlining, paragraph indentation and some other features. Also, is
easy to see how new paragraphs are defined by simply entering a double
blank space.
CAUTION: Raspberry Pi does not support encrypted IBSS connections!. You have to use an additional USB WiFi dongle that usually registers an interface wlan1. My setup shows:
Hello, here is some text without a meaning. This text should
show what a printed text will look like at this...
Follow *Install systemd-networkd*
Then come back here.
*check*
[source,sh]
----
iw list | grep -P "Wiphy|RSN-IBSS"
----
*output*
[source,sh]
----
Wiphy phy1
Device supports RSN-IBSS.
Wiphy phy0
\end{document}
----
You cannot find this support entry for Wiphy pyh0 that is the on-board WiFi device.
=== Install driver
TIP: Example TP-Link
== Line breaks and blank spaces
[source,sh]
set of examples
[source,latex]
----
echo "lsusb"
echo ""
echo "Example for TP-Link"
echo ""
echo "Bus 001 Device 005: ID 2357:0109 TP-Link TL WN823N RTL8192EU"
echo ""
sudo wget http://downloads.fars-robotics.net/wifi-drivers/install-wifi -O /usr/bin/install-wifi
sudo chmod +x /usr/bin/install-wifi
echo ""
echo "sudo install-wifi -h"
echo ""
echo "will give details on how to use the script."
echo ""
echo "To download the driver for your current kernel use command"
sudo install-wifi
echo "sudo install-wifi 8192eu"
echo ""
sudo install-wifi 8192eu
echo ""
echo "If you update your kernel version you will need to re-run the script to update the driver version."
----
NOTE: *On message: *
\begin{document}
Something in this document. This paragraph contains no information and
its purposes is to provide an example on how to insert white spaces
and lines breaks.\\
When a line break is inserted, the text is not indented, there are a
couple of extra commands do line breaks. \newline
This paragraph provides no information whatsoever. We are exploring
line breaks. \hfill \break
And combining two commands
...
...
====
[source,sh]
----
Your Pi revision number is a02082
You have a Pi 3B v1.2
Checking for a 8188eu wifi driver module for your current kernel.
A driver does not exist for this update.
\begin{figure}
\centering
\includegraphics[width=3cm]{overleaf-logo}
\caption{Overleaf logo}
\end{figure}
----
* Find source for driver e.g.
== Text alignment
[source,sh]
----
git clone https://github.com/lwfinger/rtl8188eu.git
cd rtl8188eu
make all
sudo make install
sudo depmod
sudo modprobe 8188eu
lsmod 8188eu
set of examples
[source,latex]
----
\begin{document}
\setlength{\hsize}{0.9\hsize}% emphasize effects
\subsection*{Left-aligned example with
\texttt{\string\raggedright}\\ (standard \LaTeX{} command)}
\raggedright\blindtext[2]\par
\subsection*{Left-aligned example with \texttt{\string\RaggedRight}\\ (\texttt{ragged2e} command)}
\RaggedRight\blindtext[2]\par
\end{document}
----
====
=== setup
== Multiple columns
[source,sh]
set of examples
[source,latex]
----
sudo systemctl disable --now wpa_supplicant@wlan0.service
echo "sudo -Es # if not already done"
echo ""
cat > /etc/wpa_supplicant/wpa_supplicant-wlan1.conf <<EOF
ctrl_interface=DIR=/run/wpa_supplicant GROUP=netdev
update_config=1
p2p_disabled=1
country=GR
network={
ssid="IBSS-RPiNet"
key_mgmt=WPA-PSK
proto=RSN
psk="verySecretPasswordi123"
mode=1
frequency=2412
}
EOF
\begin{document}
\maketitle
chmod 600 /etc/wpa_supplicant/wpa_supplicant-wlan1.conf
systemctl enable wpa_supplicant@wlan1.service
\begin{multicols}{3}
[
\section{First Section}
All human things are subject to decay. And when fate summons, Monarchs must obey.
]
\blindtext\blindtext
\end{multicols}
----
=== Reboot
== fonts
NOTE: reboot
[source,sh]
----
echo ""
echo "reboot."
echo ""
----
=== Check
https://fonts.google.com/[fonts^]
[source,sh]
set of examples
[source,latex]
----
echo "iw dev"
echo ""
echo "iw dev wlan1 link"
echo ""
echo "ip addr"
echo ""
echo "sudo iw dev wlan1 scan | grep -B8 -A3 "IBSS-RPiNet""
echo ""
echo "From another ad hoc connected device you should be able to"
echo ""
echo "ping -c3 raspberrypi.local"
echo ""
----
* https://raspberrypi.stackexchange.com/questions/94047/how-to-setup-an-unprotected-ad-hoc-ibss-network-and-if-possible-with-wpa-encry/94048#94048[origin^]
https://www.overleaf.com/learn/latex/XeLaTeX#Further_reading[origin^]

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