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blog/2025-05-21-make-one-proxmox-node-to-wol-another/index.md

@@ -0,0 +1,101 @@
+---
+slug: make-one-proxmox-node-to-wol-another
+title: "Make one Proxmox node to wake-on-lan another"
+tags: [self-hosting, homelab, Proxmox, WOL]
+image: /img/homelab.png
+---
+Nothing is eternal, especially the relevance of documentation. I think help.ubuntu.com is an absolute winner, holding the largest number of outdated and irrelevant pages. But that's not a topic for today's post.
+One of my Proxmox cluster nodes can't power itself on after the outage. But it supports wake-on-LAN, so I decided that another node could power it on. And the simplicity of this task was overrated by me.
+
+<!-- truncate -->
+
+:::warning
+
+Wake on LAN doesn't work across VLANs. Magic packets could be sent and received only inside a single subnet.
+
+:::
+
+## The victim
+
+First of all, even after enabling "Wake up on PCI event" or something in BIOS it was not working because WoL was still disabled on a software level. It can be checked with: 
+
+```bash
+ethtool enp1s0
+```
+
+Where `enp1s0` is a physical network interface of a Proxmox node, not a bridge.
+
+There should be `Wake-on:` setting among others. In my case it was `Wake-on: d`, which means that wake-on-LAN is disabled, according to `ethtool` documentation:
+
+```
+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(tm)
+s  Enable SecureOn(tm) password for MagicPacket(tm)
+d  Disable (wake on nothing).  This option clears  all  previous
+    options.
+```
+
+We need to set it to wake by the MagicPacket(tm). We need to create a config file for this to be enabled on system start. But first we need to:
+
+```bash
+ip link show enp1s0
+```
+
+and write down our network device MAC address. Then create a file:
+
+```bash
+nano /etc/systemd/network/90-wakeonlan.link
+```
+
+with the next content:
+
+```
+[Match]
+MACAddress=<mac-address-here>
+
+[Link]
+NamePolicy=kernel database onboard slot path
+MACAddressPolicy=persistent
+WakeOnLan=magic
+```
+
+After that we need to reboot and check WOL status again:
+
+```bash
+ethtool enp1s0
+```
+
+Now `Wake-on` should be set to `g`.
+
+## The one who bothering
+
+On another node we need to install an util that will be sending a magic packet:
+
+```bash
+apt update
+apt install etherwake
+```
+
+Now we can power the victim off and try to wake it with:
+
+```bash
+etherwake -i vmbr0 <mac_address>
+```
+
+Where `vmbr0` is a bridge network interface of current Proxmox node, and `<mac_address>` is a MAC address of the victim's physical network interface.
+
+If it works, we can now add a cron job to wake our victim upon current node startup, adding some delay to make sure the network is ready:
+
+```bash
+crontab -e
+```
+
+Cron job line to add:
+
+```
+@reboot sleep 30s && /usr/sbin/etherwake -i vmbr0 <mac_address>
+```

docusaurus.config.js

@@ -56,6 +56,9 @@ const config = {
           showReadingTime: true,
           feedOptions: {
             type: ['rss', 'atom'],
+            title: "Yehor Vialov's Blog",
+            description: 'Some notes, interesting things and projects',
+            copyright: 'Copyright © ${new Date().getFullYear()} Yehor Vialov',
             xslt: true,
           },
           blogSidebarTitle: 'Timeline',
@@ -112,6 +115,14 @@ const config = {
                 label: 'Blog',
                 to: '/blog',
               },
+              {
+                label: 'Blog RSS feed',
+                to: '/blog/rss.xml',
+              },
+              {
+                label: 'Blog Atom feed',
+                to: '/blog/atom.xml',
+              },
             ],
           },
           {

src/components/HomepageFeatures/index.js

@@ -3,16 +3,6 @@ import Heading from '@theme/Heading';
 import styles from './styles.module.css';
 
 const FeatureList = [
-  {
-    title: 'HomeLab Documented',
-    link: 'docs/homelab',
-    Svg: require('@site/static/img/homelab.svg').default,
-    description: (
-      <>
-        Here I'm trying my best in documenting my home servers and services.
-      </>
-    ),
-  },
   {
     title: 'Blog',
     link: 'blog',
@@ -23,7 +13,16 @@ const FeatureList = [
       </>
     ),
   },
-
+  {
+    title: 'HomeLab Documented',
+    link: 'docs/homelab',
+    Svg: require('@site/static/img/homelab.svg').default,
+    description: (
+      <>
+        Here I'm trying my best in documenting my home servers and services.
+      </>
+    ),
+  },
 ];
 
 function Feature({ Svg, title, link, description }) {

src/pages/deleted-post.md

@@ -0,0 +1,15 @@
+---
+title: This post was removed
+description: A message about removed content
+hide_table_of_contents: true
+---
+
+# You probably got here visiting a link somewhere on the internet
+
+Sorry to say, but this post was removed because of one of the reasons (or because of all of them):
+- It was critically outdated
+- It was misleading
+- It was stupid
+- It has no historical value
+
+You can check my [other blog posts](/blog) or start from the [home page](/).

src/pages/index.js

@@ -13,9 +13,9 @@ function HomepageHeader() {
     <header className={clsx('hero hero--primary', styles.heroBanner)}>
       <div className="container">
         <Heading as="h1" className="hero__title">
-          {siteConfig.title}
+          Yehor Vialov
         </Heading>
-        <p className="hero__subtitle">{siteConfig.tagline}</p>
+        <p className="hero__subtitle">Public Profiles</p>
         <div className={styles.buttons}>
           <Link
             className="button button--secondary button--lg"

src/pages/markdown-page.md

@@ -1,7 +0,0 @@
----
-title: Markdown page example
----
-
-# Markdown page example
-
-You don't need React to write simple standalone pages.