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%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
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% Document Info
\author{Yohan33}
\pdfinfo{
  /Title (refcard-dns.pdf)
  /Creator (Cheatography)
  /Author (Yohan33)
  /Subject (Refcard DNS Cheat Sheet)
}

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% Header and Footer
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\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
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    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Refcard DNS Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Yohan33} via \textcolor{DarkBackground}{\uline{cheatography.com/208543/cs/44902/}}}
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\end{multicols}}

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\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Yohan33 \\
  \uline{cheatography.com/yohan33} \\
  \end{tabulary}
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\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 19th November, 2024.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
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  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
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\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

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% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Configuration des clients DNS}}  \tn
% Row 0
\SetRowColor{LightBackground}
iface eth0 inet dhcp & permet de configurer en tant que dhcp dans le fichier etc network interfaces \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
ifup -{}-force eth0 et ifdown -{}-force eth0 & récupéré une adresse pour chaque machine ou l'enleve \tn 
% Row Count 7 (+ 3)
% Row 2
\SetRowColor{LightBackground}
/etc/hosts et faire \textless{}ip\textgreater{}\textless{}nom\textgreater{} & permet d'associer nom et IP de manière locale \tn 
% Row Count 10 (+ 3)
% Row 3
\SetRowColor{white}
/etc/resolv.conf & affiche une adresse exterieur au sous-réseau \tn 
% Row Count 13 (+ 3)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{/etc/dhcp/dhclient.conf} & fichier de configuration des serveurs dhcp \tn 
% Row Count 16 (+ 3)
% Row 5
\SetRowColor{white}
supersede domain-name-servers 127.0.0.1; & permet de changer le nom de domain du serveurs par sa propre ip \tn 
% Row Count 20 (+ 4)
% Row 6
\SetRowColor{LightBackground}
supersede domain-name-servers \textless{}ip dns\textgreater{} & permet de changer le nom de domain du serveurs par l'ip du serveur dns \tn 
% Row Count 24 (+ 4)
% Row 7
\SetRowColor{white}
\seqsplit{/etc/bind/named.conf.options} & demander à nos futurs serveurs DNS de relayer les requêtes DNS externes \tn 
% Row Count 28 (+ 4)
% Row 8
\SetRowColor{LightBackground}
forwarders \{ 172.16.0.3; \}; allow-query \{ any; \}; masterfile-format text; & pour faire ce qui est demande ci dessus \tn 
% Row Count 32 (+ 4)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Configuration des clients DNS (cont)}}  \tn
% Row 9
\SetRowColor{LightBackground}
zone "netas" \{ type slave; file \seqsplit{"/var/lib/bind/db.netas";} masters \{ \textless{}IP du serveur dns1\textgreater{}; \}; \}; & Permet de définir le serveur "netas" comme secondaire (esclave) \tn 
% Row Count 5 (+ 5)
% Row 10
\SetRowColor{white}
host dns-primaire(et ou secondaire).netas \textless{}IP de dns1(et aussi dns2)\textgreater{} & effectuer une requête avec la commande host en utilisant en premier le serveur dns1 puis ensuite dns2 afin de s'assurer que les deux serveurs contiennent bien notre zone netas \tn 
% Row Count 14 (+ 9)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Configuration des serveurs DNS}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{/etc/bind/named.conf.local} & permet de modifier le fichier local du serveur dns \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
zone "netas" \{ type master; file \seqsplit{"/etc/bind/db.netas";} \}; & à ajouter dans le fichier pour rendre le dns responsable du domaine principal \tn 
% Row Count 7 (+ 4)
% Row 2
\SetRowColor{LightBackground}
\# cp /etc/bind/db.empty /etc/bind/db.netas & copier le fichier /etc/bind/db.empty dans le fichier de zone que vous avez indiqué dans la déclaration de la zone \tn 
% Row Count 13 (+ 6)
% Row 3
\SetRowColor{white}
systemctl restart named & restart le serveur DNS. Attention : Il faudra penser à mettre à jour le serial de la zone et redémarrer le service après chaque modification d'une zone DNS. \tn 
% Row Count 22 (+ 9)
% Row 4
\SetRowColor{LightBackground}
systemctl reload named & permet de recharger les fichiers de configurations sans avoir à redémarrer le service \tn 
% Row Count 27 (+ 5)
% Row 5
\SetRowColor{white}
systemctl status named & vérifier que le service est bien démarré, vérifier son état \tn 
% Row Count 31 (+ 4)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Configuration des serveurs DNS (cont)}}  \tn
% Row 6
\SetRowColor{LightBackground}
journalctl -{}-unit \textless{}service\textgreater{} -{}-lines \textless{}N\textgreater{} & permet de voir les logs du service DNS (service = named et N le nbr de ligne a afficher) \tn 
% Row Count 5 (+ 5)
% Row 7
\SetRowColor{white}
entrée CNAME (exemple : \textless{}nom\textgreater{} IN CNAME \textless{}dns\textgreater{}) & ajoute un nom au serveur dns dans le fichier /bind/db.netas \tn 
% Row Count 8 (+ 3)
% Row 8
\SetRowColor{LightBackground}
entrée A & permet de configurer le dns selon l'ip du dns (donc on peut mettre les 2 dns dans un seul dns) \tn 
% Row Count 13 (+ 5)
% Row 9
\SetRowColor{white}
IN NS dns1 & Ajouter une entrée NS permettant d'indiquer le nom du serveur DNS principal \tn 
% Row Count 17 (+ 4)
% Row 10
\SetRowColor{LightBackground}
\{nom\}CNAME \{alias\} & donner les alias dns-primaire et dns-secondaire respectivement aux serveurs dns1 et dns2 \tn 
% Row Count 22 (+ 5)
% Row 11
\SetRowColor{white}
/etc/bind/db-\{named\}.net & Configuration du serveur - Définition d'une zone \tn 
% Row Count 25 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.04 cm} x{4.96 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Étude du LAN SERVER}}  \tn
% Row 0
\SetRowColor{LightBackground}
nmap -T5 -sP 10.0.0.0/22 & effectuer un scan du réseau LAN SERVER afin de récupérer les adresses IP des machines qui composent ce sous-réseaux \tn 
% Row Count 5 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}