diff --git a/deploy.sh b/deploy.sh
index 8da51b4..7202200 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -255,7 +255,7 @@ for i in $(echo $PROXY_TYPE); do
 			echo "No email address given, Let's Encrypt will not work properly."
 		else
 			TMP_FILE=$(mktemp -p /tmp/)
-                	LETS_CONTENT=$(echo '"letsencrypt": {"EMAIL": "'$LETSENCRYPT_MAIL'","DOCKER_REGISTRY_URL": "'$DOCKER_REGISTRY_URL'"'});
+                	LETS_CONTENT=$(echo '"letsencrypt": {"EMAIL": "'$LETSENCRYPT_MAIL'","SERVERNAME": "'$LETSENCRYPT_SERVERNAME'","DOCKER_REGISTRY_URL": "'$DOCKER_REGISTRY_URL'"'});
 
         		if [[ -f $USER_CONFIG_PATH ]]; then
         			TARGET=$(cat $USER_CONFIG_PATH | head -n-2);
diff --git a/install.sh b/install.sh
index b858308..45adbd8 100755
--- a/install.sh
+++ b/install.sh
@@ -60,6 +60,12 @@ ask_envs() {
 			fi;
 			echo "Invalid email address.";
 		done
+
+		echo "Please add letsencrypt server name (default is letsencrypt but you can add zerossl too):";
+		read -r LETSENCRYPT_SERVERNAME;
+		if [ "$LETSENCRYPT_SERVERNAME" = "" ]; then
+			LETSENCRYPT_SERVERNAME="letsencrypt";
+		fi;
 	fi
 
 	echo "Cron? (Y/n)";
@@ -465,22 +471,25 @@ ask_additionals() {
 				break;
 			fi;
 		done
+
 		echo "Please add Guacamole admin password: ";
 		while read -r -s GUACAMOLE_ADMIN_PASSWORD; do
 			if [ "$GUACAMOLE_ADMIN_PASSWORD" != "" ]; then
 				break;
 			fi;
 		done
+
 		echo "Do you want TOTP via login? (Y/n)";
-		read -r -s TOTP_USE;
-            if [ "$TOTP_USE" == "" ] || [ "$TOTP_USE" == "y" ] || [ "$TOTP_USE" == "Y" ] ; then
-                TOTP_USE="true";
+		read -r TOTP_USE;
+		if [ "$TOTP_USE" == "" ] || [ "$TOTP_USE" == "y" ] || [ "$TOTP_USE" == "Y" ] ; then
+                	TOTP_USE="true";
         	fi;
-        echo "Do you want limitation in case invalid login or password? Please add a number how many minutes for deny retry. If you add 0 means it will disabled. If just press enter means limitation will be set 5 minutes by default";
-        read -r -s BAN_DURATION;
-            if [ "$BAN_DURATION" == "" ] ; then
-         	    BAN_DURATION="5";
-            fi;
+
+		echo "Do you want limitation in case invalid login or password? Please add a number how many minutes for deny retry. If you add 0 means it will disabled. If just press enter means limitation will be set 5 minutes by default";
+		read -r BAN_DURATION;
+		if [ "$BAN_DURATION" == "" ] ; then
+			BAN_DURATION="5";
+		fi;
 	fi
 
 }
@@ -667,7 +676,9 @@ if [ ! -f "/etc/user/config/system.json" ]; then
 	--volume $HOME/.ssh/installer:/root/.ssh/id_rsa \
 	--volume /etc/user/:/etc/user/ \
 	--volume /etc/system/:/etc/system/ \
-	--env LETSENCRYPT_MAIL=$LETSENCRYPT_MAIL $DOCKER_REGISTRY_URL/installer-tool
+	--env LETSENCRYPT_MAIL=$LETSENCRYPT_MAIL \
+	--env LETSENCRYPT_SERVERNAME=$LETSENCRYPT_SERVERNAME \
+	$DOCKER_REGISTRY_URL/installer-tool
 
 fi;