Update cheatsheets

linux/adig

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# adig
+
+> Print information received from Domain Name System (DNS) servers.
+> More information: <https://manned.org/adig>.
+
+- Display A (default) record from DNS for hostname(s):
+
+`adig {{example.com}}`
+
+- Display extra [d]ebugging output:
+
+`adig -d {{example.com}}`
+
+- Connect to a specific DNS [s]erver:
+
+`adig -s {{1.2.3.4}} {{example.com}}`
+
+- Use a specific TCP port to connect to a DNS server:
+
+`adig -T {{port}} {{example.com}}`
+
+- Use a specific UDP port to connect to a DNS server:
+
+`adig -U {{port}} {{example.com}}`