diff --git a/README.md b/README.md
index ca38e7b..51e9463 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,14 @@
 
 ## Config
 
+### /etc/hosts
+
+```bash
+3.14.3.102  red
+3.14.3.103  grey
+3.14.3.107  purple
+```
+
 ### Generate Certs
 
 Pick one server to act as the CA.
@@ -81,8 +89,8 @@ vim req-csr.json:
   "CN": "etcd",
   "hosts": [
     "3.14.3.102",
-    "3.14.3.107",
     "3.14.3.103",
+    "3.14.3.107",
     "127.0.0.1"
   ],
   "key": {