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oam/knowledge base/dig.md
2023-09-14 00:23:33 +02:00

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# Dig
## Table of contents <!-- omit in toc -->
1. [TL;DR](#tldr)
1. [Sources](#sources)
## TL;DR
```sh
# Installation.
apt-get install 'dnsutils'
yum install 'bind-utils'
# Perform a DNS lookup.
dig 'google.com'
dig 'google.com' 'A'
# Perform a reverse lookup.
dig -x '172.217.14.238'
# Only show the IP from the result.
dig 'google.com' '+short'
# See resolution trace.
dig 'google.com' '+trace'
# Ask a specific DNS server.
dig '@8.8.8.8' 'google.com'
# Return all results.
dig 'google.com' 'ANY'
```
## Sources
- [How to Use Linux dig Command (DNS Lookup)]
- [Using dig +trace to Understand DNS Resolution from Start to Finish]
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References
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<!-- Others -->
[how to use linux dig command (dns lookup)]: https://phoenixnap.com/kb/linux-dig-command-examples
[using dig +trace to understand dns resolution from start to finish]: https://ns1.com/blog/using-dig-trace