diff --git a/README.md b/README.md
index e096e6a..70d921b 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,18 @@ npm install
 node pm2panel
 ```
 
+if you have problem in `npm install` step run this command on linux:
+
+On all the Debian/Ubuntu :
+```bash
+sudo apt-get install libpam0g-dev
+```
+On all the Centos and RHEL:
+```bash
+sudo yum install pam-devel
+```
+
+
 Then you can go to url : http://localhost:3001 or http://server_ip:3001 and the default user is `admin` and password is `admin`.
 
 
diff --git a/pm2panel.js b/pm2panel.js
index 91191ab..8b115ab 100644
--- a/pm2panel.js
+++ b/pm2panel.js
@@ -3,7 +3,7 @@
 //                             config panel
 //##############################################################################
 const PORT = 3001;
-const PAM_AUTH = true; // if set to true, USER and PASS won't be used
+const PAM_AUTH = false; // if set to true, USER and PASS won't be used
 const USER = 'admin';
 const PASS = 'admin';
 const SESSTION_AGE = 10 * 60000; // 10 minutes