+###### Ubuntu Main Repos
+deb http://us.archive.ubuntu.com/ubuntu/ xenial main universe
+deb-src http://us.archive.ubuntu.com/ubuntu/ xenial main universe
+
+###### Ubuntu Update Repos
+deb http://us.archive.ubuntu.com/ubuntu/ xenial-security main universe
+deb http://us.archive.ubuntu.com/ubuntu/ xenial-updates main universe
+deb http://us.archive.ubuntu.com/ubuntu/ xenial-backports main universe
+deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-security main universe
+deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-updates main universe
+deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-backports main universe