diff --git a/.gitignore b/.gitignore
index 794cf9ee..f6c8d5da 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,4 +15,9 @@ tmp/
 backups/
 *.pid
 *.log
-*.sqlite
\ No newline at end of file
+*.sqlite
+
+# ignore config files
+config.json
+public/js/common.js
+.sequelizerc
diff --git a/.sequelizerc b/.sequelizerc
deleted file mode 100644
index 29a0d145..00000000
--- a/.sequelizerc
+++ /dev/null
@@ -1,8 +0,0 @@
-var path = require('path');
-
-module.exports = {
-    'config':          path.resolve('config.json'),
-    'migrations-path': path.resolve('lib', 'migrations'),
-    'models-path':     path.resolve('lib', 'models'),
-    'url':             'change this'
-}
\ No newline at end of file
diff --git a/config.json b/config.json
deleted file mode 100644
index 35efcd25..00000000
--- a/config.json
+++ /dev/null
@@ -1,52 +0,0 @@
-{
-    "development": {
-        "domain": "localhost",
-        "db": {
-            "username": "",
-            "password": "",
-            "database": "hackmd",
-            "host": "localhost",
-            "port": "3306",
-            "dialect": "mysql"
-        }
-    },
-    "production": {
-        "domain": "localhost",
-        "db": {
-            "username": "",
-            "password": "",
-            "database": "hackmd",
-            "host": "localhost",
-            "port": "5432",
-            "dialect": "postgres"
-        },
-        "facebook": {
-            "clientID": "change this",
-            "clientSecret": "change this"
-        },
-        "twitter": {
-            "consumerKey": "change this",
-            "consumerSecret": "change this"
-        },
-        "github": {
-            "clientID": "change this",
-            "clientSecret": "change this"
-        },
-        "gitlab": {
-            "baseURL": "change this",
-            "clientID": "change this",
-            "clientSecret": "change this"
-        },
-        "dropbox": {
-            "clientID": "change this",
-            "clientSecret": "change this"
-        },
-        "google": {
-            "clientID": "change this",
-            "clientSecret": "change this"
-        },
-        "imgur": {
-            "clientID": "change this"
-        }
-    }
-}
\ No newline at end of file
diff --git a/public/js/common.js b/public/js/common.js
deleted file mode 100644
index 11c32acc..00000000
--- a/public/js/common.js
+++ /dev/null
@@ -1,95 +0,0 @@
-//common
-var domain = ''; // domain name
-var urlpath = ''; // sub url path, like: www.example.com/<urlpath>
-//settings
-var debug = false;
-
-var GOOGLE_API_KEY = '';
-var GOOGLE_CLIENT_ID = '';
-
-var DROPBOX_APP_KEY = '';
-
-var port = window.location.port;
-var serverurl = window.location.protocol + '//' + (domain ? domain : window.location.hostname) + (port ? ':' + port : '') + (urlpath ? '/' + urlpath : '');
-var noteid = urlpath ? window.location.pathname.slice(urlpath.length + 1, window.location.pathname.length).split('/')[1] : window.location.pathname.split('/')[1];
-var noteurl = serverurl + '/' + noteid;
-
-var version = '0.4.4';
-
-var checkAuth = false;
-var profile = null;
-var lastLoginState = getLoginState();
-var lastUserId = getUserId();
-var loginStateChangeEvent = null;
-
-function resetCheckAuth() {
-    checkAuth = false;
-}
-
-function setLoginState(bool, id) {
-    Cookies.set('loginstate', bool, {
-        expires: 365
-    });
-    if (id) {
-        Cookies.set('userid', id, {
-            expires: 365
-        });
-    } else {
-        Cookies.remove('userid');
-    }
-    lastLoginState = bool;
-    lastUserId = id;
-    checkLoginStateChanged();
-}
-
-function checkLoginStateChanged() {
-    if (getLoginState() != lastLoginState || getUserId() != lastUserId) {
-        if(loginStateChangeEvent)
-            loginStateChangeEvent();
-        return true;
-    } else {
-        return false;
-    }
-}
-
-function getLoginState() {
-    var state = Cookies.get('loginstate');
-    return state === "true" || state === true;
-}
-
-function getUserId() {
-    return Cookies.get('userid');
-}
-
-function clearLoginState() {
-    Cookies.remove('loginstate');
-}
-
-function checkIfAuth(yesCallback, noCallback) {
-    var cookieLoginState = getLoginState();
-    if (checkLoginStateChanged())
-        checkAuth = false;
-    if (!checkAuth || typeof cookieLoginState == 'undefined') {
-        $.get(serverurl + '/me')
-            .done(function (data) {
-                if (data && data.status == 'ok') {
-                    profile = data;
-                    yesCallback(profile);
-                    setLoginState(true, data.id);
-                } else {
-                    noCallback();
-                    setLoginState(false);
-                }
-            })
-            .fail(function () {
-                noCallback();
-            })
-            .always(function () {
-                checkAuth = true;
-            });
-    } else if (cookieLoginState) {
-        yesCallback(profile);
-    } else {
-        noCallback();
-    }
-}
\ No newline at end of file