diff --git a/gfw/shadowsockes.md b/gfw/shadowsockes.md
index ce2b3c4..4c460fb 100755
--- a/gfw/shadowsockes.md
+++ b/gfw/shadowsockes.md
@@ -95,4 +95,4 @@ make
 make install
 make install-config
 
-```
\ No newline at end of file
+```
diff --git a/ngrok/ngrok.md b/ngrok/ngrok.md
index 7c4263c..78cd530 100755
--- a/ngrok/ngrok.md
+++ b/ngrok/ngrok.md
@@ -38,6 +38,26 @@ server_addr: "ngrok.hellolight.me:4443"
 trust_host_root_certs: false
 ```
 
+nano ~/.ngrok
+
+``` bash
+
+server_addr: ngrok.hellolight.me:4443
+trust_host_root_certs: false
+tunnels:
+    web:
+        #auth: "AuthUser:AuthPassWord"
+        proto:
+            http: 5000
+    ssh:
+        remote_port: 12222
+        proto:
+            tcp: 22
+
+```
+
+
+
 ./ngrok -subdomain pub -proto=http -config=ngrok.cfg 8000
 
 ./ngrok -subdomain pub -proto=http -config=ngrok.cfg 22
diff --git a/ubuntu/sudo.md b/ubuntu/sudo.md
new file mode 100644
index 0000000..0aa12aa
--- /dev/null
+++ b/ubuntu/sudo.md
@@ -0,0 +1,14 @@
+# sudo 
+
+
+
+> sudo visudo
+
+
+``` bash
+
+light   ALL=(ALL) NOPASSWD: ALL
+%admin ALL=(ALL) NOPASSWD: ALL
+%sudo   ALL=(ALL) NOPASSWD: ALL
+
+```
\ No newline at end of file