diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..b5fc5db
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,11 @@
+ TYPEDB = 
+
+DB = 
+
+USERDB = 
+
+PASSDB =
+
+HOSTDB = 
+
+PORT = 
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1dcef2d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+node_modules
+.env
\ No newline at end of file
diff --git a/app.js b/app.js
index d009e61..98b9569 100644
--- a/app.js
+++ b/app.js
@@ -4,10 +4,11 @@ var cors = require('cors');
 app.get('/', function(req, res) {
     res.send('Hello World!');
 });
+require('dotenv').config()
 app.use(cors());
 app.use(express.json()) // for parsing application/json
 app.use(express.urlencoded({ extended: true }))
 app.use(require('./routes/index.js'))
-app.listen(3000, function() {
-    console.log('Example app listening on port 3000!');
+app.listen(process.env.PORT, function() {
+    console.log('Example app listening on port ' + process.env.PORT + '!');
 });
\ No newline at end of file
diff --git a/conf/connection.js b/conf/connection.js
index 90ba706..4aa4042 100644
--- a/conf/connection.js
+++ b/conf/connection.js
@@ -1,9 +1,9 @@
 var mysql = require('mysql');
 var connection = mysql.createConnection({
-    host: 'localhost',
-    user: 'root',
-    password: 'george',
-    database: 'coloquio_educacion'
+    host: process.env.HOSTDB,
+    user: process.env.USERDB,
+    password: process.env.PASSDB,
+    database: process.env.DB
 });
 
 module.exports = connection;
\ No newline at end of file
diff --git a/files/cartel-1.docx b/files/cartel-1.docx
index 8ee6603..65e5006 100644
Binary files a/files/cartel-1.docx and b/files/cartel-1.docx differ
diff --git a/files/ponencia-1.docx b/files/ponencia-1.docx
index 8ee6603..65e5006 100644
Binary files a/files/ponencia-1.docx and b/files/ponencia-1.docx differ
diff --git a/files/cartel-10.docx b/files/ponencia-11.docx
similarity index 100%
rename from files/cartel-10.docx
rename to files/ponencia-11.docx
diff --git a/files/ponencia-10.docx b/files/ponencia-12.docx
similarity index 100%
rename from files/ponencia-10.docx
rename to files/ponencia-12.docx
diff --git a/files/ponencia-2.docx b/files/ponencia-2.docx
deleted file mode 100644
index dbb2a1d..0000000
Binary files a/files/ponencia-2.docx and /dev/null differ
diff --git a/files/ponencia-5.docx b/files/ponencia-5.docx
deleted file mode 100644
index dbb2a1d..0000000
Binary files a/files/ponencia-5.docx and /dev/null differ
diff --git a/package-lock.json b/package-lock.json
index ba3aecc..4b60f08 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -241,6 +241,11 @@
         "libmime": "^2.0.3"
       }
     },
+    "dotenv": {
+      "version": "8.2.0",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-8.2.0.tgz",
+      "integrity": "sha512-8sJ78ElpbDJBHNeBzUbUVLsqKdccaa/BXF1uPTw3GrvQTBgrQrtObr2mUrE38vzYd8cEv+m/JBfDLioYcfXoaw=="
+    },
     "ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
diff --git a/package.json b/package.json
index fd78a40..fa7287a 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
   "dependencies": {
     "bcrypt": "^3.0.8",
     "cors": "^2.8.5",
+    "dotenv": "^8.2.0",
     "express": "^4.17.1",
     "express-fileupload": "^1.1.6",
     "randomstring": "^1.1.5",