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+---
+title: "Configuring Certificate Authorities"
+description: ""
+---
+
+## Appending the Certificate Authority
+
+Put into each machine the PEM encoded certificate:
+
+```yaml
+machine:
+  ...
+  files:
+    - content: |
+        -----BEGIN CERTIFICATE-----
+        ...
+        -----END CERTIFICATE-----
+      permissions: 0644
+      path: /etc/ssl/certs/ca-certificates
+      op: append
+```