diff --git a/knowledge base/wake a host from lan.md b/knowledge base/wake a host from lan.md
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+# Wake a host from LAN
+
+The host needs to support wake-on-LAN and have it enabled.
+
+## Table of contents <!-- omit in toc -->
+
+1. [TL:DR](#tldr)
+1. [Further readings](#further-readings)
+1. [Sources](#sources)
+
+## TL:DR
+
+Use [`wakeonlan`][wakeonlan].
+
+## Further readings
+
+- [`wakeonlan`][wakeonlan]
+
+## Sources
+
+All the references in the [further readings] section, plus the following:
+
+- [How to wake up computers using Linux by sending magic packets]
+
+<!-- project's references -->
+<!-- internal references -->
+
+[further readings]: #further-readings
+
+[wakeonlan]: wakeonlan.md
+
+<!-- external references -->
+
+[how to wake up computers using linux by sending magic packets]: https://www.cyberciti.biz/tips/linux-send-wake-on-lan-wol-magic-packets.html
diff --git a/knowledge base/wakeonlan.md b/knowledge base/wakeonlan.md
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+# wakeonlan
+
+## Table of contents <!-- omit in toc -->
+
+1. [TL:DR](#tldr)
+1. [Further readings](#further-readings)
+1. [Sources](#sources)
+
+## TL:DR
+
+```sh
+# Install `wakeonlan`.
+brew install 'wakeonlan'
+
+# Send a WOL package to the host.
+wakeonlan '11:22:33:44:55:66'
+
+# Simulate.
+wakeonlan -n '11:22:33:44:55:66'
+
+# Limit the magic package to a specific network or host.
+# Use a network's *broadcast* address unless you have a static ARP table
+# configured so the magic packet can actually reach the single host.
+wakeonlan -i '192.168.1.255' '11:22:33:44:55:66'
+wakeonlan -n '11:22:33:44:55:66' -i '192.168.100.3'
+```
+
+## Further readings
+
+- [`man` page][man page]
+
+## Sources
+
+All the references in the [further readings] section, plus the following:
+
+- [wake a host from lan]
+
+<!-- project's references -->
+<!-- internal references -->
+
+[further readings]: #further-readings
+
+[wake a host from lan]: wake%20a%20host%20from%20lan.md
+
+<!-- external references -->
+
+[man page]: https://www.unix.com/man-page/debian/1/WAKEONLAN/