diff --git a/content/blog/deploy-hugo-git.md b/content/blog/deploy-hugo-git.md
index 1f6b878..c7ee7bd 100644
--- a/content/blog/deploy-hugo-git.md
+++ b/content/blog/deploy-hugo-git.md
@@ -1,14 +1,14 @@
 ---
 title: "Deploy a Hugo Website with GIT"
-tags: ["hugo", "gogs", "git", "deploy", "webhook"]
-categories: ["recipe"]
+tags: ["hugo", "gogs", "git", "deploy", "webhooks", "hooks"]
+categories: ["recipe", "sysadmin"]
 description: "How to deploy a hugo-powered static website to a webserver with Gogs"
 date: 2019-05-27T20:34:30+02:00
 author: "Ettore Dreucci"
 draft: false
 ---
 
-## [[recipe]({{< ref "/categories/recipe" >}})]: How to deploy a hugo-powered static website to a webserver with GIT
+## [[recipe]({{< ref "/categories/recipe" >}}), [sysadmin]({{< ref "/categories/sysadmin" >}})]: How to deploy a hugo-powered static website to a webserver with GIT
 
 [This](https://ettore.dreucci.it) website is powered by [Hugo](https://gohugo.io/), an open-source static website generator written in [Go](https://golang.org/). I can write pages and posts in [Markdown](https://daringfireball.net/projects/markdown/) and then generate some static .html pages to upload to a webserver.
 
diff --git a/content/blog/edgerouter-wireshark.md b/content/blog/edgerouter-wireshark.md
index c29e58b..3220600 100644
--- a/content/blog/edgerouter-wireshark.md
+++ b/content/blog/edgerouter-wireshark.md
@@ -1,14 +1,14 @@
 ---
 title: "EdgeRouter Wireshark capture"
 tags: ["edgerouter", "wireshark", "networking", "tcpdump"]
-categories: ["recipe", "troubleshooting"]
+categories: ["recipe", "troubleshooting", "netadmin"]
 description: "How to capture and inspect packet flow in an EdgeRouter with Wireshark"
 date: 2019-07-16T01:20:50+02:00
 author: "Ettore Dreucci"
 draft: false
 ---
 
-## [[recipe]({{< ref "/categories/recipe" >}}), [troubleshooting]({{< ref "/categories/troubleshooting" >}})]: How to capture and inspect packet flow in an EdgeRouter with Wireshark
+## [[recipe]({{< ref "/categories/recipe" >}}), [troubleshooting]({{< ref "/categories/troubleshooting" >}}), [netadmin]({{< ref "/categories/netadmin" >}})]: How to capture and inspect packet flow in an EdgeRouter with Wireshark
 
 ### Background
 
diff --git a/content/blog/ispconfig-ddns.md b/content/blog/ispconfig-ddns.md
index 81424b2..1853a1f 100644
--- a/content/blog/ispconfig-ddns.md
+++ b/content/blog/ispconfig-ddns.md
@@ -1,12 +1,12 @@
 ---
 title: "ISPConfig Dynamic DNS"
 tags: ["ispconfig", "ddns", "dns"]
-categories: ["recipe"]
+categories: ["recipe", "sysadmin"]
 description: "How to create and update a DDNS entry in ISPConfig"
 date: 2019-05-22T18:54:00+02:00
 draft: false
 ---
-## [[recipe]({{< ref "/categories/recipe" >}})]: How to create and update a DDNS entry in ISPConfig
+## [[recipe]({{< ref "/categories/recipe" >}}), [sysadmin]({{< ref "/categories/sysadmin" >}})]: How to create and update a DDNS entry in ISPConfig
 
 If you manage your DNS server(s) with ISPConfig you may want a *dynamic entry* that gets updated automatically every time the target host changes its IP address.
 
diff --git a/content/blog/ispconfig-jailkit-git.md b/content/blog/ispconfig-jailkit-git.md
index 37b3ead..bee31f0 100644
--- a/content/blog/ispconfig-jailkit-git.md
+++ b/content/blog/ispconfig-jailkit-git.md
@@ -1,14 +1,14 @@
 ---
 title: "Adding GIT to ISPConfig jailkits"
 tags: ["ispconfig", "git", "jailkit"]
-categories: ["recipe"]
+categories: ["recipe", "sysadmin"]
 description: "How to add the GIT ecosystem to one/all jailkit(s) in ISPConfig"
 date: 2019-06-03T00:37:33+02:00
 author: "Ettore Dreucci"
 draft: false
 ---
 
-## [[recipe]({{< ref "/categories/recipe" >}})]: How to add the GIT ecosystem to one/all jailkit(s) in ISPConfig
+## [[recipe]({{< ref "/categories/recipe" >}}), [sysadmin]({{< ref "/categories/sysadmin" >}})]: How to add the GIT ecosystem to one/all jailkit(s) in ISPConfig
 
 [ISPConfig](https://www.ispconfig.org/) comes with [jailkit](https://olivier.sessink.nl/jailkit/) enabled so that the “clients” that login via ssh are limited to a chroot shell with only some specific command. **Every client website has its own jailkit.**