Add custom dns address to quick install script

quick-installer.sh

@@ -50,6 +50,11 @@ set_creator_ssh_keys() {
     chmod 600 /home/creator/.ssh/authorized_keys
 }
 
+set_dns_server() {
+    echo ">>> Setting DNS server..." >&2
+    echo "nameserver 1.1.1.1" > /etc/resolv.conf
+}
+
 if ! check_privilege; then
     echo ">>> Error: Please run as root" >&2
     exit 1
@@ -60,3 +65,5 @@ check_sudo_installation
 create_default_user
 
 set_creator_ssh_keys
+
+set_dns_server