diff --git a/.travis.yml b/.travis.yml
index 155ec64..91da273 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,4 @@
 language: shell
-sudo: required
 dist: trusty
 
 os:
diff --git a/deploy/haproxy.sh b/deploy/haproxy.sh
index 3cd2a80..0a45ee0 100644
--- a/deploy/haproxy.sh
+++ b/deploy/haproxy.sh
@@ -233,7 +233,6 @@ haproxy_deploy() {
           -header Host${_header_sep}\"${_ocsp_host}\" \
           -respout \"${_ocsp}\" \
           -verify_other \"${_issuer}\" \
-          -no_nonce \
           ${_cafile_argument} \
           | grep -q \"${_pem}: good\""
         _debug _openssl_ocsp_cmd "${_openssl_ocsp_cmd}"
diff --git a/dnsapi/dns_df.sh b/dnsapi/dns_df.sh
new file mode 100644
index 0000000..c0499dd
--- /dev/null
+++ b/dnsapi/dns_df.sh
@@ -0,0 +1,65 @@
+#!/usr/bin/env sh
+
+########################################################################
+# https://dyndnsfree.de hook script for acme.sh
+#
+# Environment variables:
+#
+#  - $DF_user      (your dyndnsfree.de username)
+#  - $DF_password  (your dyndnsfree.de password)
+#
+# Author: Thilo Gass <thilo.gass@gmail.com>
+# Git repo: https://github.com/ThiloGa/acme.sh
+
+#-- dns_df_add() - Add TXT record --------------------------------------
+# Usage: dns_df_add _acme-challenge.subdomain.domain.com "XyZ123..."
+
+dyndnsfree_api="https://dynup.de/acme.php"
+
+dns_df_add() {
+  fulldomain=$1
+  txt_value=$2
+  _info "Using DNS-01 dyndnsfree.de hook"
+
+  DF_user="${DF_user:-$(_readaccountconf_mutable DF_user)}"
+  DF_password="${DF_password:-$(_readaccountconf_mutable DF_password)}"
+  if [ -z "$DF_user" ] || [ -z "$DF_password" ]; then
+    DF_user=""
+    DF_password=""
+    _err "No auth details provided. Please set user credentials using the \$DF_user and \$DF_password environment variables."
+    return 1
+  fi
+  #save the api user and password to the account conf file.
+  _debug "Save user and password"
+  _saveaccountconf_mutable DF_user "$DF_user"
+  _saveaccountconf_mutable DF_password "$DF_password"
+
+  domain="$(printf "%s" "$fulldomain" | cut -d"." -f2-)"
+
+  get="$dyndnsfree_api?username=$DF_user&password=$DF_password&hostname=$domain&add_hostname=$fulldomain&txt=$txt_value"
+
+  if ! erg="$(_get "$get")"; then
+    _err "error Adding $fulldomain TXT: $txt_value"
+    return 1
+  fi
+
+  if _contains "$erg" "success"; then
+    _info "Success, TXT Added, OK"
+  else
+    _err "error Adding $fulldomain TXT: $txt_value erg: $erg"
+    return 1
+  fi
+
+  _debug "ok Auto $fulldomain TXT: $txt_value erg: $erg"
+  return 0
+}
+
+dns_df_rm() {
+
+  fulldomain=$1
+  txtvalue=$2
+  _info "TXT enrty in $fulldomain is deleted automatically"
+  _debug fulldomain "$fulldomain"
+  _debug txtvalue "$txtvalue"
+
+}