diff --git a/README.md b/README.md
index 29f9075..bd765a1 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 # Snippets for k3s
 
 * [Install k3s](#install-k3s)
+* [Configure upstream DNS-resolver](#upstream-dns-resolver)
 * [Namespaces and resource limits](#namespaces)
   * [devel](#namespace-devel)
   * [staging](#namespace-staging)
@@ -34,6 +35,19 @@ https://k3s.io/:
 curl -sfL https://get.k3s.io | sh -
 ```
 
+# Confiugure upstream DNS-resolver <a name="upstream-dns-resolver"></a>
+Default: 8.8.8.8
+1. local /etc/resolv.conf -> ip-of-dnsresolver (127.0.0.1 **does not work!**)
+2. vi /etc/systemd/system/k3s.service:
+```
+[...]
+ExecStart=/usr/local/bin/k3s \
+    server --resolv-conf /etc/resolv.conf \
+```
+3. Re-load systemd config: `systemctl daemon-reload`
+4. Re-start k3s: `systemctl restart k3s.service`
+5. Re-deploy coredns-pods: `kubectl -n kube-system delete name-of-coredns-pods`
+
 # Namespaces and resource limits <a name="namespaces"></a>
 ## devel <a name="namespace-devel"></a>
 namespace-devel-limitranges.yaml:
@@ -137,7 +151,7 @@ spec:
 ## Local provider (local - ouf-of-the-box) <a name="pv-local"></a>
 https://rancher.com/docs/k3s/latest/en/storage/
 
-## Longhorn (lightweight/distributed) <a name="pv-longhorn"></a>
+## Longhorn provider (lightweight/distributed) <a name="pv-longhorn"></a>
 * Requirements: https://longhorn.io/docs/0.8.0/install/requirements/
   * Debian: `apt install open-iscsi`
 * Install: https://rancher.com/docs/k3s/latest/en/storage/
@@ -147,7 +161,7 @@ edit /etc/systemd/system/k3s.service:
 ```
 [...]
 ExecStart=/usr/local/bin/k3s \
-    server --disable traefik \
+    server --disable traefik --resolv-conf /etc/resolv.conf \
 [...]
 ```
 Finally `systemctl daemon-reload` and `systemctl restart k3s`