\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \usepackage{seqsplit} % Splits long words. %\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 %\usepackage[english,german,french,spanish,italian]{babel} % Languages % Document Info \author{TME520 (TME520)} \pdfinfo{ /Title (dig-english.pdf) /Creator (Cheatography) /Author (TME520 (TME520)) /Subject (dig (english) Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{A3A3A3} \definecolor{LightBackground}{HTML}{F3F3F3} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \fancyhead[L]{ \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{C} \SetRowColor{DarkBackground} \vspace{-7pt} {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{dig (english) Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{TME520 (TME520)} via \textcolor{DarkBackground}{\uline{cheatography.com/20978/cs/7226/}}} \end{tabulary} \end{multicols}} \fancyfoot[L]{ \footnotesize \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{LL} \SetRowColor{FootBackground} \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}} \\ \vspace{-2pt}TME520 (TME520) \\ \uline{cheatography.com/tme520} \\ \uline{\seqsplit{tme520}.com} \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Published 16th February, 2016.\\ Updated 12th May, 2016.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \vspace{-5pt} %\includegraphics[width=48px,height=48px]{dave.jpeg} Measure your website readability!\\ www.readability-score.com \end{tabulary} \end{multicols}} \begin{document} \raggedright \raggedcolumns % Set font size to small. Switch to any value % from this page to resize cheat sheet text: % www.emerson.emory.edu/services/latex/latex_169.html \footnotesize % Small font. \begin{multicols*}{3} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Syntax}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{dig {[}@server{]} {[}-b address{]} {[}-c class{]} {[}-f filename{]} {[}-k filename{]} {[}-m{]} {[}-p port\#{]} {[}-q name{]} {[}-t type{]} {[}-x addr{]} {[}-y {[}hmac:{]}name:key{]} {[}-4{]} {[}-6{]} {[}name{]} {[}type{]} {[}class{]} {[}queryopt...{]}} \tn % Row Count 4 (+ 4) \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{3.4839 cm} x{1.4931 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Config}} \tn % Row 0 \SetRowColor{LightBackground} Tired of always typing the same options ? Create a Run Control file for dig. & `vi \seqsplit{\$HOME/.digrc`} \tn % Row Count 3 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{\$ cat \$HOME/.digrc \newline +noall +answer} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{2.78712 cm} x{2.18988 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{List specific types of RRs (Resource Records)}} \tn % Row 0 \SetRowColor{LightBackground} List address records & `dig -t A tme520.net` \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} List aliases & `dig -t CNAME tme520.net` \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} Find who manages a domain & `dig -t SOA tme520.net` \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} List mail servers & `dig tme520.net MX` \tn % Row Count 8 (+ 2) % Row 4 \SetRowColor{LightBackground} List name servers & `dig tme520.net NS` \tn % Row Count 10 (+ 2) % Row 5 \SetRowColor{white} List any type of Resource Record & `dig tme520.net ANY` \tn % Row Count 12 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{There are about 40 DNS Resources Records types, but you only have to know 5 of them: \newline \newline - {\bf{A}} : Address record (IPv4); AAAA for IPv6, \newline - {\bf{CNAME}} : Canonical Name. Aliases to A or AAAA records, \newline - {\bf{SOA}} : Start Of Authority: primary name server, email of the domain admin, domain serial number, and timers relating to refreshing the zone, \newline - {\bf{MX}} : Mail eXchange. Points to a mail server, \newline - {\bf{NS}} : Name Server (a DNS).} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{0.9954 cm} x{3.9816 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Output sections}} \tn % Row 0 \SetRowColor{LightBackground} HEADER & Displays the dig command version, the global options used, the type of operation (opcode), the status of the operation (NOERROR) and the message id (necessary to match responses to queries). \tn % Row Count 6 (+ 6) % Row 1 \SetRowColor{white} \seqsplit{QUESTION} & This is your input, the question that has been asked to the DNS. \tn % Row Count 8 (+ 2) % Row 2 \SetRowColor{LightBackground} ANSWER & The 2nd field is the time in seconds that the record may be cached (0 = don't cache), the 3rd field is the class (Internet (IN), Chaos (CH), Hesiod (HS)...), the 4th is the type (A, NS, CNAME, MX...) and the 5th, the IP. \tn % Row Count 15 (+ 7) % Row 3 \SetRowColor{white} \seqsplit{AUTHORITY} & This section contains the DNS name server that has the authority to answer your query (type: NS, Name Server). \tn % Row Count 19 (+ 4) % Row 4 \SetRowColor{LightBackground} \seqsplit{ADDITIONAL} & The additional section carries Resource Records related to the RRs from the other sections. \tn % Row Count 22 (+ 3) % Row 5 \SetRowColor{white} \seqsplit{STATISTICS} & Displays the time it took to get an answer, the IP of the DNS server used, the date and size of the message. \tn % Row Count 26 (+ 4) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{If you ever get confused about whether or not {\emph{dig}} found any result for your query, check the ANSWER field from the header; if it's at 0, your query returned no proper answer.} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.84149 cm} x{3.13551 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Batch mode: multiple queries in one go}} \tn % Row 0 \SetRowColor{LightBackground} Using a list & `dig -f names.list` \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} Using several arguments & `dig centos.org MX +noall +answer suckless.org ANY +short` \tn % Row Count 4 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{Batch mode takes a filename as input; the file must be plain text and contain one domain per line: \newline \newline `\$ cat names.list` \newline \newline `redhat.com` \newline `ubuntu.com` \newline `perdu.com`} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{2.43873 cm} x{2.53827 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Make that DNS talk !}} \tn % Row 0 \SetRowColor{LightBackground} Display only the ANSWER section & `dig opensuse.org +noall +answer` \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} Activate the short output & `dig perdu.com +short` \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} Reverse DNS (get name from IP) & `dig -x 208.97.177.124` \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} Use a specific DNS server & `dig @8.8.4.4 redhat.com` \tn % Row Count 8 (+ 2) % Row 4 \SetRowColor{LightBackground} Display the name resolution path & `dig google.com +trace` \tn % Row Count 10 (+ 2) % Row 5 \SetRowColor{white} Request a zone transfer & `dig microsoft.com AXFR` \tn % Row Count 12 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{A zone transfer is a mechanism allowing an administrator to replicate DNS databases across a set of DNS servers. There are two methods: full (aka AXFR) and incremental (aka IXFR). Zone transfers were often used by people wanting to retrieve a list of all the Resource Records of a DNS server. Nowadays, most servers will refuse your request, mostly for security reasons.} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}