diff --git a/legacy/projects/hermes/ansible/inventory/host_vars/hermes.yml b/legacy/projects/hermes/ansible/inventory/host_vars/hermes.yml
index 2597f8a..d583939 100644
--- a/legacy/projects/hermes/ansible/inventory/host_vars/hermes.yml
+++ b/legacy/projects/hermes/ansible/inventory/host_vars/hermes.yml
@@ -62,6 +62,9 @@ ssh_ca_host_ca_private_key: !vault |
   39393734393061653639313365633931373963666635316138663538356265386562373837393530
   6537646639613534666533626339356335396634613765616664
 
+external_ipv4_address: "192.145.57.90"
+external_ipv6_address: ""
+
 bind_zone_ttl: 1h
 bind_allow_query:
   - any
@@ -80,13 +83,13 @@ bind_zones:
 
     hosts:
       - name: ns
-        ip: 84.245.14.149
+        ip: "{{external_ipv4_address}}"
       - name: ns1
-        ip: 84.245.14.149
+        ip: "{{external_ipv4_address}}"
       - name: ns2
-        ip: 84.245.14.149
+        ip: "{{external_ipv4_address}}"
       - name: '*'
-        ip: 84.245.14.149
+        ip: "{{external_ipv4_address}}"
       - name: fcfe5d31d5b7ae1af0b352a6b4c75d3f
         aliases:
           - verify.bing.com.
@@ -106,32 +109,32 @@ bind_zones:
 
     hosts:
       - name: '@'
-        ip: 84.245.14.149
-        ipv6: 2a02:58:19a:f730:b62e:99ff:fe77:1bda
+        ip: "{{external_ipv4_address}}"
+        ipv6: 2a0d:6e00:1a77:30:b62e:99ff:fe77:1bda
       - name: mail
-        ip: 84.245.14.149
+        ip: "{{external_ipv4_address}}"
       - name: wg
-        ip: 84.245.14.149
+        ip: "{{external_ipv4_address}}"
         ipv6: 2a02:58:1:e::1afb
       - name: wg4
-        ip: 84.245.14.149
+        ip: "{{external_ipv4_address}}"
       - name: wg6
         ipv6: 2a02:58:1:e::1afb
       - name: tuindersweijde
-        ip: 84.245.14.149
+        ip: "{{external_ipv4_address}}"
       - name: ns
-        ip: 84.245.14.149
-        ipv6: 2a02:58:19a:f730:c8fe:c0ff:feff:ee07
+        ip: "{{external_ipv4_address}}"
+        ipv6: 2a0d:6e00:1a77:30:c8fe:c0ff:feff:ee07
       - name: files
-        ip: 84.245.14.149
-        ipv6: 2a02:58:19a:f730:b62e:99ff:fe77:1bda
+        ip: "{{external_ipv4_address}}"
+        ipv6: 2a0d:6e00:1a77:30:b62e:99ff:fe77:1bda
       - name: cyberchef
-        ip: 84.245.14.149
-        ipv6: 2a02:58:19a:f730:c8fe:c0ff:feff:ee03
+        ip: "{{external_ipv4_address}}"
+        ipv6: 2a0d:6e00:1a77:30:c8fe:c0ff:feff:ee03
       - name: inbucket
-        ip: 84.245.14.149
+        ip: "{{external_ipv4_address}}"
       - name: kms
-        ip: 84.245.14.149
+        ip: "{{external_ipv4_address}}"
 
     mail_servers:
       - name: mail