diff --git a/seqs/onlyoffice.sh b/seqs/onlyoffice.sh
index a9df7dc..dd6dd21 100755
--- a/seqs/onlyoffice.sh
+++ b/seqs/onlyoffice.sh
@@ -12,8 +12,8 @@ dockerDeps="apt-transport-https ca-certificates curl gnupg-agent software-proper
 dockerGpgKeyUrl="https://download.docker.com/linux/ubuntu/gpg"
 dockerRepoUrl="https://download.docker.com/linux/ubuntu"
 dockerPackages="docker-ce docker-ce-cli containerd.io"
-dockerDns1="192.168.23.20"
-dockerDns2="46.182.19.48"
+dockerDns1="80.241.218.68" # https://dismail.de/info.html#dns
+dockerDns2="46.182.19.48" # https://digitalcourage.de/support/zensurfreier-dns-server
 dockerDnsEntry="DOCKER_OPTS=\"--dns $dockerDns1 --dns $dockerDns2\""
 dockerDefaultConf="/etc/default/docker"
 onlyOfficePort="8026"
@@ -67,10 +67,20 @@ step_4() {
   fi
 }
 
-step_5_info() { echo "Install onlyoffice docker container"; }
-step_5_alias() { ALIAS="onlyoffice"; }
+step_5_info() { echo "Install/start onlyoffice docker container <SECRET>"; }
+step_5_alias() { ALIAS="startoo"; }
 step_5() {
-  exe docker run -i -t -d -p ${onlyOfficePort}:80 --restart=always onlyoffice/documentserver
+  local options=
+  # The correct expansion for missing SECRET or SECRET with spaces is not possible.
+  # Therefore docker without secret needs to be called separately
+  if [ ! -z "$2" ] && [ "$2" != "" ] ; then
+    options="-e JWT_ENABLED=true -e JWT_SECRET="
+    # This is the only way to provide SECRET($2) to docker command line which handles all types of characters.
+    exe docker run -i -t -d -p ${onlyOfficePort}:80 ${options}"$2" --restart=always onlyoffice/documentserver
+  else
+    echo " [I] Running $toolName without JWT (JSON Web Tokens)"
+    exe docker run -i -t -d -p ${onlyOfficePort}:80 --restart=always onlyoffice/documentserver
+  fi
 }
 
 step_10_info() { echo "List running Docker container"; }
@@ -83,6 +93,13 @@ step_10() {
   echo "     e.g.: docker stop 70f1c5c81be2"
 }
 
+step_12_info() { echo "Clean unused Docker data (unused containers, dangling images, networks and build cache)"; }
+step_12_alias() { ALIAS="prune"; }
+step_12() {
+  exe docker system df
+  exe docker system prune
+}
+
 step_100_info() { echo "Uninstall docker"; }
 step_100_alias() { ALIAS="uninstall"; }
 step_100() {