diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index f368337..ec5f905 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -65,12 +65,14 @@
             "id": "fa2494da4cac5f09",
             "type": "leaf",
             "state": {
-              "type": "release-notes",
+              "type": "markdown",
               "state": {
-                "currentVersion": "1.9.10"
+                "file": "2025/durian.srv.xor-gate.org.md",
+                "mode": "source",
+                "source": false
               },
-              "icon": "lucide-book-up",
-              "title": "Release Notes 1.9.10"
+              "icon": "lucide-file",
+              "title": "durian.srv.xor-gate.org"
             }
           }
         ],
@@ -106,7 +108,7 @@
             "state": {
               "type": "search",
               "state": {
-                "query": "hostnamedu",
+                "query": "durian",
                 "matchingCase": false,
                 "explainSearch": false,
                 "collapseAll": false,
@@ -222,7 +224,7 @@
       "obsidian-git:Open Git source control": false
     }
   },
-  "active": "17ba41ca922a4dca",
+  "active": "fa2494da4cac5f09",
   "lastOpenFiles": [
     "2025/Transcript of Why A Chosen Man Always Walks Alone - Alan Watts.md",
     "2025/durian.srv.xor-gate.org.md",
diff --git a/2025/durian.srv.xor-gate.org.md b/2025/durian.srv.xor-gate.org.md
index a875490..23f5fb6 100644
--- a/2025/durian.srv.xor-gate.org.md
+++ b/2025/durian.srv.xor-gate.org.md
@@ -10,6 +10,15 @@
 * Iptables (native)
 * https://wiki.debian.org/iptables
 * <https://packages.debian.org/trixie/iptables-persistent>
+
+### IPv4 forwarding 
+
+/etc/sysctl.conf: 
+```
+net.ipv4.ip_forward = 1
+```
+
+`/sbin/sysctl -p`
 ## VPN
 
 Wireguard