Munin page, additions

certbot.md

@@ -46,6 +46,8 @@ sudo certbot certonly --standalone --preferred-challenges http \
     -d example.com
 ```
 
+If you do not have a web server (such as Nginx) on your server and you don't plan to, replace `12345` and `80` and you can use Certbot standalone with HTTP challenge.
+
 ## DH params
 
 ```bash

dns/authoritative.md

@@ -8,9 +8,13 @@ permalink: /dns/authoritative
 * [1984 Hosting FreeDNS](https://1984hosting.com/product/freedns/)
     * Supports master&slave
 * [HE.net](https://dns.he.net/)
+    * Anycast
     * Supports master&slave
 * [Lelux.fi](https://lelux.fi/dns/) (disclaimer: mine)
     * Supports master&slave
+* [Gratisdns.dk](https://web.gratisdns.dk/domaener/dns/)
+    * Anycast
+    * Warning: in Danish language
 * [ClouDNS](https://www.cloudns.net/)
     * Freemium
 

index.md

@@ -11,6 +11,7 @@ permalink: /
 * [Wireguard](wireguard.md)
 * [Nginx](nginx.md)
 * [HAProxy](haproxy.md)
+* [Munin](munin.md)
 * [Mastodon](mastodon.md)
 * [Gitea](gitea.md)
 * [Tips for fresh Debian server](debian/server-tips.md)

munin.md

+---
+title: Munin
+permalink: /munin/
+---
+
+## Plugins
+
+These are the third-party plugins I use on my Munin instance.
+
+* [Opentracker Munin Plugin](https://github.com/mhwest13/OpenTracker-Munin-Plugin) ([munin gallery](http://gallery.munin-monitoring.org/contrib/other/opentracker_.html)) (for [tracker.lelux.fi](https://lelux.fi/tracker/))
+
+### Included, but extra setup required
+
+* [Unbound](https://angristan.xyz/configure-unbound-plugin-munin/)
+
+#### MySQL plugin
+
+Tested on Debian 9 (stretch).
+
+1. [Install dependencies](https://raymii.org/s/snippets/Munin-Fix-MySQL-Plugin-on-Ubuntu-12.04.html)
+2. Edit `/etc/munin/plugin-conf.d/munin-node`, and replace `env.mysqluser debian-sys-maint` with `env.mysqluser root`.
+