diff --git a/dnsapi/dns_knot.sh b/dnsapi/dns_knot.sh
deleted file mode 100644
index 094a6981..00000000
--- a/dnsapi/dns_knot.sh
+++ /dev/null
@@ -1,95 +0,0 @@
-#!/usr/bin/env sh
-
-########  Public functions #####################
-
-#Usage: dns_knot_add   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
-dns_knot_add() {
-  fulldomain=$1
-  txtvalue=$2
-  _checkKey || return 1
-  [ -n "${KNOT_SERVER}" ] || KNOT_SERVER="localhost"
-  # save the dns server and key to the account.conf file.
-  _saveaccountconf KNOT_SERVER "${KNOT_SERVER}"
-  _saveaccountconf KNOT_KEY "${KNOT_KEY}"
-
-  if ! _get_root "$fulldomain"; then
-    _err "Domain does not exist."
-    return 1
-  fi
-
-  _info "Adding ${fulldomain}. 60 TXT \"${txtvalue}\""
-
-  knsupdate -y "${KNOT_KEY}" <<EOF
-server ${KNOT_SERVER}
-zone ${_domain}.
-update add ${fulldomain}. 60 TXT "${txtvalue}"
-send
-quit
-EOF
-
-  if [ $? -ne 0 ]; then
-    _err "Error updating domain."
-    return 1
-  fi
-
-  _info "Domain TXT record successfully added."
-  return 0
-}
-
-#Usage: dns_knot_rm   _acme-challenge.www.domain.com
-dns_knot_rm() {
-  fulldomain=$1
-  _checkKey || return 1
-  [ -n "${KNOT_SERVER}" ] || KNOT_SERVER="localhost"
-
-  if ! _get_root "$fulldomain"; then
-    _err "Domain does not exist."
-    return 1
-  fi
-
-  _info "Removing ${fulldomain}. TXT"
-
-  knsupdate -y "${KNOT_KEY}" <<EOF
-server ${KNOT_SERVER}
-zone ${_domain}.
-update del ${fulldomain}. TXT
-send
-quit
-EOF
-
-  if [ $? -ne 0 ]; then
-    _err "error updating domain"
-    return 1
-  fi
-
-  _info "Domain TXT record successfully deleted."
-  return 0
-}
-
-####################  Private functions below ##################################
-# _acme-challenge.www.domain.com
-# returns
-# _domain=domain.com
-_get_root() {
-  domain=$1
-  i="$(echo "$fulldomain" | tr '.' ' ' | wc -w)"
-  i=$(_math "$i" - 1)
-
-  while true; do
-    h=$(printf "%s" "$domain" | cut -d . -f "$i"-100)
-    if [ -z "$h" ]; then
-      return 1
-    fi
-    _domain="$h"
-    return 0
-  done
-  _debug "$domain not found"
-  return 1
-}
-
-_checkKey() {
-  if [ -z "${KNOT_KEY}" ]; then
-    _err "You must specify a TSIG key to authenticate the request."
-    return 1
-  fi
-}