FEAT: add post wake on lan

Author: squarezhong

content/posts/2024-04-10-wake-on-lan/index.md

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+---
+title: "Config Wake on LAN"
+date: 2024-04-10T12:11:03+08:00
+# weight: 1
+# aliases: ["/first"]
+tags: ["System", "Network"]
+author: "Square Zhong"
+# author: ["Me", "You"] # multiple authors
+showToc: true
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+description: "Wake your computer remotely."
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+---
+
+## Introduction
+
+> [Debian Wiki]
+> 
+> 
+> Wake On LAN (WOL) enables other systems on your local area network (LAN) to turn on your system over the network. Support for WOL is required in your network card, motherboard, UEFI/BIOS boot firmware and operating system network configuration.
+> 
+
+## Enable WOL
+
+### BIOS
+
+**Normal**: Enable “Wake on LAN” in the BIOS.
+
+**HASEE**: Enable “Network Stack” in the BIOS. It may be set in different place in different bios.
+
+### Windows
+
+By default nothing is needed to do.
+
+If you changed some networking settings, you can use following steps:
+
+[Ethernet Properties] → [Configure] → [Power Management] → check [Allow this device to wake the computer]
+
+### Linux
+
+Check the state of wol:
+
+1. first use `ifcong` to find your ethernet device: e.g. “enp8s0f1” is the name of ethernet device of my laptop
+2. check wake-on-lan status: 
+`sudo ethtool enp8s0f1 | grep Wake-on`
+3. You may see the following content:
+    
+    ```bash
+    Supports Wake-on: pumbg
+    Wake-on: d
+    ```
+    
+    if “Wake-on” is “g”, that means you have already turned on wol.
+    
+4. enable the **wol**: modify the global interface config file /etc/network/interfaces
+    
+    remember change `enp8s0f1` to your device name
+    
+    ```bash
+    $ sudo vim /etc/network/interfaces
+    
+    # add following content
+    auto enp8s0f1
+    iface enp8s0f1 inet dhcp
+            ethernet-wol g
+    ```
+    
+
+WOL modes explanation:
+
+refer to [ethtool manual](https://man7.org/linux/man-pages/man8/ethtool.8.html)
+
+```
+       wol p|u|m|b|a|g|s|f|d...
+              Sets Wake-on-LAN options.  Not all devices support
+              this.  The argument to this option is a string of
+              characters specifying which options to enable.
+              p   Wake on PHY activity
+              u   Wake on unicast messages
+              m   Wake on multicast messages
+              b   Wake on broadcast messages
+              a   Wake on ARP
+              g   Wake on MagicPacket™
+              s   Enable SecureOn™ password for MagicPacket™
+              f   Wake on filter(s)
+              d   Disable (wake on nothing).  This option
+                  clears all previous options.
+
+```
+
+### Reference
+
+[WakeOnLan - Debian Wiki](https://wiki.debian.org/WakeOnLan#Checking_WOL)
+
+## Use WOL to wake computer
+
+### By command line
+
+Wake other computers.
+
+```python
+$ sudo apt install wakeonlan
+$ wakeonlan <mac address>
+```
+
+In macOS you can use `brew install wakeonlan` to install it.
+
+### Phone App
+
+Many app can use the WOL feature. With some apps and ddns on your router, you can also use WOL feature in a larger local network, such as campus network.