minor: 📝 update CHANGELOG

no persistent status file was written in case of an error as the return status code was always 0

.gitignore

@@ -1,2 +1,3 @@
 .env*
 docker-compose*
+.vscode

CHANGELOG.md

@@ -1,127 +1,179 @@
 # Changelog
 
 
+## 0.3.5 (2022-11-03)
+
+### Features
+
+* ✨ add support for IPv64.net as DynDNS2 provider. [Eduard Veit]
+
+### Fix
+
+* Delete status file after success. [Eduard Veit]
+
+* More status file issues. [Eduard Veit]
+
+* Incorrect status code handling. [Eduard Veit]
+
+  no persistent status file was written in case of an error as the return status code was always 0
+
+### Documentation
+
+* 📝 change TTL to 60 for IPv64.net. [Eduard Veit]
+
+* 📝 add IPv64.net as DynDNS2 provider. [Eduard Veit]
+
+
+## 0.3.4 (2022-06-30)
+
+### Features
+
+* ✨ add support for ddnss.de as DynDNS2 provider. [Eduard Veit]
+
+### Documentation
+
+* 📝 update providers in README. [Eduard Veit]
+
+
+## 0.3.3 (2022-06-07)
+
+### Fix
+
+* Wrong parameter name for DuckDNS. [Eduard Veit]
+
+### Documentation
+
+* 📝 add comments to docker-compose.yml example. [Eduard Veit]
+
+
+## 0.3.2 (2022-05-26)
+
+### Features
+
+* ✨ add tzdata to Dockerfile for timezone config. [Eduard Veit]
+
+  You can now set your timezone with the environment variable
+  `TZ="Europe/Berlin"`
+
+
+## 0.3.1 (2022-05-26)
+
+### Fix
+
+* 🐛 curl/libcurl doesn't support dns-server option. [Eduard Veit]
+
+  the latest alpine we are using for the docker image
+  does also drops the support for that option like debian/ubuntu/etc
+
+
+## 0.3.0 (2022-05-26)
+
+### Features
+
+* ✨ validate ip address respons from ip check web service. [Eduard Veit]
+
+* ✨ check internet connection for selected ip versions. [Eduard Veit]
+
+* 🎨 colorful info, debug and error messages. [Eduard Veit]
+
+### Fix
+
+* Abort on all dig errors. [Eduard Veit]
+
+### Documentation
+
+* 📝 add labels to Dockerfile. [Eduard Veit]
+
+
 ## 0.2.0 (2021-09-24)
 
-### New
+### Features
 
-* :sparkles: enable parameter extensions for `docker run --interactive` [Eduard Veit]
+* ✨ enable parameter extensions for `docker run --interactive` [Eduard Veit]
 
-* :sparkles: add pre-commit hooks for markdown. [Eduard Veit]
+### Changed
 
-* :sparkles: change git hooks and add shfmt. [Eduard Veit]
+* Handle dns server selection. [Eduard Veit]
-
-* :sparkles: add pre-commit git hook for shellcheck. [Eduard Veit]
-
-### Changes
-
-* :wrench: remove md-toc from pre-commit. [Eduard Veit]
-
-* :wrench: handle dns server selection. [Eduard Veit]
 
 ### Documentation
 
-* :memo: update CHANGELOG.md. [Eduard Veit]
+* 📝 update CHANGELOG.md. [Eduard Veit]
 
-* :memo: document docker parameters. [Eduard Veit]
+* 📝 document docker parameters. [Eduard Veit]
 
-* :memo: change default dns server setting. [Eduard Veit]
+* 📝 change default dns server setting. [Eduard Veit]
 
-* :memo: update CHANGELOG. [Eduard Veit]
+* 📝 update CHANGELOG. [Eduard Veit]
 
-* :memo: update README.md. [Eduard Veit]
+* 📝 update README.md. [Eduard Veit]
-
-### Other
-
-* :art: lint README.md. [Eduard Veit]
-
-* :art: add shfmt params to pre-commit check. [Eduard Veit]
-
-* :art: fix shell style. [Eduard Veit]
-
-* :recycle: seperate parsing logic. [Eduard Veit]
-
-* :recycle: normalizing pre-commit configuration to a top-level map. [Eduard Veit]
-
-* :recycle: refactorings. [Eduard Veit]
-
-* Refactor: :recycle: remove unused help message. [Eduard Veit]
 
 
 ## 0.1.2 (2021-04-23)
 
 ### Documentation
 
-* :memo: document environment variables. [Eduard Veit]
+* 📝 document environment variables. [Eduard Veit]
-
-### Other
-
-* :recycle: refactor: method extractions and other beautifications. [Eduard Veit]
 
 
 ## 0.1.1 (2021-04-23)
 
 ### Fix
 
-* :bug: fix loop and error handling in case of connection issues. [Eduard Veit]
+* 🐛 fix loop and error handling in case of connection issues. [Eduard Veit]
 
 
 ## 0.1.0 (2021-04-22)
 
-### New
+### Features
 
-* :sparkles: add Dockerfile. [Eduard Veit]
+* ✨ add Dockerfile. [Eduard Veit]
 
-* :sparkles: add loop mode. [Eduard Veit]
+* ✨ add loop mode. [Eduard Veit]
 
-* :sparkles: add support for Duck DNS as DynDNS2 provider. [Eduard Veit]
+* ✨ add support for Duck DNS as DynDNS2 provider. [Eduard Veit]
 
-* :sparkles: add support for deSEC as DynDNS2 provider. [Eduard Veit]
+* ✨ add support for deSEC as DynDNS2 provider. [Eduard Veit]
 
-* :sparkles: add completion. [Eduard Veit]
+* ✨ add completion. [Eduard Veit]
 
-  :sparkles: add man page
+  ✨ add man page
 
-* :sparkles: replace getopt with argbash. [Eduard Veit]
+* 🔃 replace getopt with argbash. [Eduard Veit]
 
-* :sparkles: add interpretaton of status codes and act accordingly. [Eduard Veit]
+* ✨ add interpretaton of status codes and act accordingly. [Eduard Veit]
 
-* :sparkles: make network interface configurable. [Eduard Veit]
+* ✨ make network interface configurable. [Eduard Veit]
 
-* :sparkles: add DynDNS2 support for dynv6.com. [Eduard Veit]
+* ✨ add DynDNS2 support for dynv6.com. [Eduard Veit]
 
-* :sparkles: add .gitchangelog.rc. [Eduard Veit]
+### Added
 
-* :sparkles: add dynb.sh. [Eduard Veit]
+* 📝 README.md. [Eduard Veit]
+
+* ✨ dynb.sh. [Eduard Veit]
+
+### Changed
+
+* 🔃 rename environment variables. [Eduard Veit]
 
 ### Fix
 
-* :bug: fix sourcing of config file. [Eduard Veit]
+* 🐛 fix error handling. [Eduard Veit]
 
-  :recycle: do some shellcheck fixes
+* 🐛 fix sourcing of config file. [Eduard Veit]
+
+  ♻️ do some shellcheck fixes
 
 ### Documentation
 
-* :memo: document example of an docker-compose.yml file. [Eduard Veit]
+* 📝 document example of an docker-compose.yml file. [Eduard Veit]
 
-* :memo: document loop mode and dig as requirement. [Eduard Veit]
+* 📝 document `loop mode` and mention `dig` as requirement. [Eduard Veit]
 
-* :memo: update example of .env in README.md. [Eduard Veit]
+* 📝 update example of .env in README.md. [Eduard Veit]
 
-* :memo: add CHANGELOG.md. [Eduard Veit]
+* 📝 CHANGELOG.md. [Eduard Veit]
 
-* :memo: add example.env. [Eduard Veit]
+* 📝 add example.env. [Eduard Veit]
-
-* :memo: write README.md. [Eduard Veit]
-
-### Other
-
-* :recycle: refactor: rename environment variables. [Eduard Veit]
-
-* :recycle: refactor, fix and debug error handling. [Eduard Veit]
-
-* :recycle: refactor main code. [Eduard Veit]
-
-* Initial commit. [EV21]
 
 

Dockerfile

@@ -7,7 +7,8 @@ apk add \
 bash \
 curl \
 jq \
-bind-tools
+bind-tools \
+tzdata
 
 WORKDIR /usr/src/app
 

README.md

@@ -7,8 +7,6 @@ IPv4 (A) and IPv6 (AAAA) record updates are supported.
 <!-- TOC -->
 
 - [✨ Update Methods](#-update-methods)
-  - [APIs](#apis)
-  - [DynDNS2](#dyndns2)
 - [📦 Requirements](#-requirements)
 - [🚀 Installation](#-installation)
 - [⚙ Configuration](#-configuration)
@@ -25,18 +23,15 @@ IPv4 (A) and IPv6 (AAAA) record updates are supported.
 
 The following update methods are currently implemented:
 
-### APIs
+| Provider            | API                   | TTL in seconds | Credentials                                                                                  | own domain via NS record | free (sub-) domain                             |
-
+|---------------------|-----------------------|----------------|----------------------------------------------------------------------------------------------|--------------------------|------------------------------------------------|
-- INWX.com Domrobot JSON-RPC-API\
+| INWX.com            | Domrobot JSON-RPC-API | 300            | customer login `username` & `password`. Mobile TAN (OTP) is currently not supported by DynB. | ✔️                       | ⛔ choose one of your owned domains             |
-  Limitations:
+| INWX.com            | DynDNS2               | 60             | specific dyndns `username` & `password`                                                      | ✔️                       | ⛔ choose one of your owned domains per account |
-  - minimum TTL is 300 (5 minutes)
+| deSEC.io (dedyn.io) | DynDNS2               | 60             | `token`                                                                                      | ✔️                       | ✔️                                             |
-
+| DuckDNS.org         | DynDNS2               | 60             | `token`                                                                                      | ⛔                        | ✔️                                             |
-### DynDNS2
+| dynv6.com           | DynDNS2               | 60             | `token`                                                                                      | ✔️                       | ✔️                                             |
-
+| ddnss.de            | DynDNS2               | 10             | update key as `token`                                                                        | ⛔                        | ✔️                                             |
-- INWX.com
+| IPv64.net           | DynDNS2               | 60             | `DynDNS Updatehash` as `token`                                                               | ⛔                        | ✔️                                             |
-- deSEC.io (dedyn.io)
-- DuckDNS.org
-- dynv6.com
 
 ## 📦 Requirements
 
@@ -57,7 +52,7 @@ or simply clone this repo
 git clone https://github.com/EV21/dynb.git
 ```
 
-If you want to add the script to you PATH, run :point_down:
+If you want to add the script to you PATH, run 👇
 
 ```shell
 bash dynb.sh --link
@@ -79,7 +74,7 @@ DYNB_SERVICE_PROVIDER=inwx
 ## update method options: domrobot, dyndns
 DYNB_UPDATE_METHOD=domrobot
 
-## ip mode could be either: 4, 6 or dual for dualstack
+## ip mode could be either: 4, 6 or 64 for dualstack
 DYNB_IP_MODE=64
 
 ## If you are using the DomRobot RPC-API enter your credentials for the web interface login here
@@ -92,14 +87,14 @@ DYNB_TOKEN=
 
 ## 🏃 Run
 
-If you have a config file just run :point_down:
+If you have a config file just run 👇
 
 ```bash
 dynb
 ```
 
 Alternatively you can use parameters if your system meets the relevant requirements. This example shows the long form parameter, there are also short ones.\
-Call the help function :point_down:
+Call the help function 👇
 
 ```bash
 dynb --help
@@ -123,13 +118,13 @@ Just use the parameter `--interval 60` or the environment variable `DYNB_INTERVA
 
 ### crontab
 
-execute :point_down:
+execute 👇
 
 ```bash
 crontab -e
 ```
 
-then enter :point_down: to run dynb every five minutes.
+then add the following line 👇 to run dynb every five minutes.
 
 ```bash
 */5 * * * * $HOME/.local/bin/dynb >> $HOME/.local/share/dynb/dynb-cron.log
@@ -155,25 +150,33 @@ services:
     image: ev21/dynb
     container_name: dynb
     network_mode: host
-    build:
+    stdin_open: true
-      context: .
+    tty: true
-      dockerfile: ./Dockerfile
     environment:
       - DYNB_DYN_DOMAIN=dyndns.example.com
-      - DYNB_SERVICE_PROVIDER=inwx
+      # Providers: deSec, DuckDNS, dynv6, inwx, ddnss, ipv64
+      - DYNB_SERVICE_PROVIDER=desec
+      # Possible update methods are: dyndns, domrobot
       - DYNB_UPDATE_METHOD=dyndns
+      # IP modes: 4 (IPv4 only), 6 (IPv6 only), 64 both
       - DYNB_IP_MODE=64
+      # If your provider uses tokens use DYNB_TOKEN instead of DYNB_USERNAME and DYNB_PASSWORD
       - DYNB_USERNAME=User42
       - DYNB_PASSWORD=SuperSecretPassword
-      - DYNB_INTERVAL=60
+      # The interval in seconds is the time the script waits before executing it again
+      - DYNB_INTERVAL=300
+      # TZ: Timezone setting for correct log time
+      - TZ=Europe/Berlin
+      # TERM: For colorful console output (attached mode)
+      - TERM=xterm-256color
 ```
 
 ## environment variables
 
 | variable              | default value   | description                                                                                                    |
-| --------------------- | --------------- | -------------------------------------------------------------------------------------------------------------- |
+|-----------------------|-----------------|----------------------------------------------------------------------------------------------------------------|
 | DYNB_DYN_DOMAIN       | undefined       | required; `dyndns.example.com`                                                                                 |
-| DYNB_SERVICE_PROVIDER | undefined       | required; `deSEC`, `duckdns`, `dynv6`, `inwx`                                                                  |
+| DYNB_SERVICE_PROVIDER | undefined       | required; `deSEC`, `duckdns`, `dynv6`, `inwx`, `ddnss`, `ipv64`                                                |
 | DYNB_UPDATE_METHOD    | undefined       | required; `dyndns` or `domrobot` (with inwx)                                                                   |
 | DYNB_IP_MODE          | undefined       | required; `4`, `6` or `64` for both                                                                            |
 | DYNB_USERNAME         | undefined       | the requirement depends on your provider and the update method                                                 |

dynb.sh

@@ -66,7 +66,7 @@ _response=
 _statusHostname=
 _statusUsername=
 _statusPassword=
-_version=0.3.0
+_version=0.3.5
 _userAgent="DynB/$_version github.com/EV21/dynb"
 _configFile=$HOME/.local/share/dynb/.env
 _statusFile=/tmp/dynb.status
@@ -209,17 +209,12 @@ function getRemoteIP
 {
   local ip_version=$1
   local ip_check_server=$2
-  if [[ -n $_DNS_checkServer ]]
+  curl --silent "$_interface_str" --user-agent "$_userAgent" \
-  then
+    --ipv"${ip_version}" --location "${ip_check_server}"
-    curl --silent "$_interface_str" --user-agent "$_userAgent" \
+  local curls_status_code=$?
-      --ipv"${ip_version}" --dns-servers "$_DNS_checkServer" --location "${ip_check_server}"
-  else
-    curl --silent "$_interface_str" --user-agent "$_userAgent" \
-      --ipv"${ip_version}" --location "${ip_check_server}"
-  fi
   # shellcheck disable=2181
-  if [[ $? -gt 0 ]]; then
+  if [[ $curls_status_code -gt 0 ]]; then
-    errorMessage "IPCheck (getRemoteIP ${1}) request failed"
+    errorMessage "IPCheck (getRemoteIP $ip_version) request failed"
     exit 1
   fi
 }
@@ -263,8 +258,7 @@ function updateRecord
   fi
 }
 
-# using DynDNS2 protocol
+function select_update_base_url
-function dynupdate
 {
   # default parameter values
   myip_str=myip
@@ -274,6 +268,8 @@ function dynupdate
   DESEC_DYNDNS_UPDATE_URL="https://update.dedyn.io/?"
   DUCKDNS_DYNDNS_UPDATE_URL="https://www.duckdns.org/update?domains=$DYNB_DYN_DOMAIN&token=$DYNB_TOKEN&"
   DYNV6_DYNDNS_UPDATE_URL="https://dynv6.com/api/update?zone=$DYNB_DYN_DOMAIN&token=$DYNB_TOKEN&"
+  DDNSS_DYNDNS_UPDATE_URL="https://ddnss.de/upd.php?key=$DYNB_TOKEN&host=$DYNB_DYN_DOMAIN&"
+  IPV64NET_DYNDNS_UPDATE_URL="https://ipv64.net/nic/update?"
 
   case $DYNB_SERVICE_PROVIDER in
     inwx* | INWX*)
@@ -289,34 +285,37 @@ function dynupdate
       ;;
     DuckDNS* | duckdns*)
       dyndns_update_url="${DUCKDNS_DYNDNS_UPDATE_URL}"
-      myip_str=ipv4
+      myip_str=ip
       myipv6_str=ipv6
       ;;
+    ddnss*)
+      dyndns_update_url="${DDNSS_DYNDNS_UPDATE_URL}"
+      ## we are currently not using the syntax with ip auto detection
+      myip_str=ip
+      myipv6_str=ip6
+      ;;
+    [Ii][Pp][Vv]64*)
+      dyndns_update_url="${IPV64NET_DYNDNS_UPDATE_URL}"
+      myip_str=ip
+      myipv6_str=ip6
+      ;;
     *)
       errorMessage "$DYNB_SERVICE_PROVIDER is not supported"
       exit 1
       ;;
   esac
+}
 
-  # pre encode ip parameters
+function send_request
-  if [[ $_is_IPv4_enabled == true ]] && [[ $_is_IPv6_enabled == true ]]; then
+{
-    dyndns_update_url="${dyndns_update_url}${myip_str}=${_new_IPv4}&${myipv6_str}=${_new_IPv6}"
+    case $DYNB_SERVICE_PROVIDER in
-  fi
-  if [[ $_is_IPv4_enabled == true ]] && [[ $_is_IPv6_enabled == false ]]; then
-    dyndns_update_url="${dyndns_update_url}${myip_str}=${_new_IPv4}"
-  fi
-  if [[ $_is_IPv4_enabled == false ]] && [[ $_is_IPv6_enabled == true ]]; then
-    dyndns_update_url="${dyndns_update_url}${myipv6_str}=${_new_IPv6}"
-  fi
-  debugMessage "Update URL was: $dyndns_update_url"
-
-  ## request ##
-  case $DYNB_SERVICE_PROVIDER in
     inwx* | INWX*)
       _response=$(curl --silent "$_interface_str" \
         --user-agent "$_userAgent" \
         --user "$DYNB_USERNAME":"$DYNB_PASSWORD" \
         "${dyndns_update_url}")
+      analyse_response
+      status_code=$?
       ;;
     deSEC* | desec* | dedyn*)
       _response=$(curl --silent "$_interface_str" \
@@ -324,41 +323,72 @@ function dynupdate
         --header "Authorization: Token $DYNB_TOKEN" \
         --get --data-urlencode "hostname=$DYNB_DYN_DOMAIN" \
         "${dyndns_update_url}")
+      analyse_response
+      status_code=$?
       ;;
-    dynv6* | duckDNS* | duckdns*)
+    [Ii][Pp][Vv]64* )
+      _response=$(curl --silent "$_interface_str" \
+        --user-agent "$_userAgent" \
+        --header "Authorization: Bearer $DYNB_TOKEN" \
+        --request POST \
+        --form "domain=$DYNB_DYN_DOMAIN" \
+        "${dyndns_update_url}")
+      analyse_response
+      status_code=$?
+    ;;
+    dynv6* | duckDNS* | duckdns* | ddnss*)
       _response=$(
         curl --silent "$_interface_str" \
           --user-agent "$_userAgent" \
-          "${dyndns_update_url}"
+          "${dyndns_update_url}")
-      )
+      analyse_response
+      status_code=$?
       ;;
   esac
+  return $status_code
+}
 
-  case $_response in
+function analyse_response
-    good* | OK* | "addresses updated")
+{
+    case $_response in
+    good* | OK* | "addresses updated" | *Updated*hostname* | *'"info":"good"'*)
       if [[ $_response == "good 127.0.0.1" ]]; then
         errorMessage "$_response: Request ignored."
         return 1
       else
-        infoMessage "$_response: The DynDNS update has been executed."
+        infoMessage "The DynDNS update has been executed."
-        _errorCounter=0
+        debugMessage "Response: $_response"
         return 0
       fi
       ;;
-    nochg*)
+    *nochg*)
-      infoMessage "$_response: Nothing has changed, IP addresses are still up to date."
+      infoMessage "Nothing has changed, IP addresses are still up to date."
+      debugMessage "Response: $_response"
+      return 1
+      ;;
+    *'Bad Request'*)
+      errorMessage "Bad Request."
+      debugMessage "Response: $_response"
+      return 1
+      ;;
+    *'Too Many Requests'*)
+      errorMessage "Too Many Request."
+      debugMessage "Response: $_response"
       return 1
       ;;
     abuse)
-      errorMessage "$_response: Username is blocked due to abuse."
+      errorMessage "Username is blocked due to abuse."
+      debugMessage "Response: $_response"
       return 1
       ;;
-    badauth | 401)
+    *badauth* | 401 | *Unauthorized*)
-      errorMessage "$_response: Invalid username password combination."
+      errorMessage "Invalid token or username password combination."
+      debugMessage "Response: $_response"
       return 1
       ;;
     badagent)
-      errorMessage "$_response: Client disabled. Something is very wrong!"
+      errorMessage "Client disabled. Something is very wrong!"
+      debugMessage "Response: $_response"
       return 1
       ;;
     !donator)
@@ -373,8 +403,9 @@ function dynupdate
       errorMessage "$_response: Hostname $DYNB_DYN_DOMAIN is invalid"
       return 1
       ;;
-    nohost)
+    *nohost*)
-      errorMessage "$_response: Hostname supplied does not exist under specified account, enter new login credentials before performing an additional request."
+      errorMessage "Hostname supplied does not exist under specified account, enter new login credentials before performing an additional request."
+      debugMessage "Response: $_response"
       return 1
       ;;
     numhost)
@@ -391,7 +422,7 @@ function dynupdate
       ;;
     *)
       if [[ "$_response" == "$_status" ]]; then
-        errorMessage "An unknown response code has been received. $_response"
+        errorMessage "An unknown response code has been received: $_response"
         return 1
       else
         errorMessage "unknown respnse code: $_response"
@@ -401,6 +432,34 @@ function dynupdate
   esac
 }
 
+# using DynDNS2 protocol
+function dynupdate
+{
+  select_update_base_url
+
+  # pre encode ip parameters
+  if [[ $_is_IPv4_enabled == true ]] && [[ $_is_IPv6_enabled == true ]]
+  then
+    dyndns_update_url="${dyndns_update_url}${myip_str}=${_new_IPv4}&${myipv6_str}=${_new_IPv6}"
+    send_request
+    request_status=$?
+  fi
+  if [[ $_is_IPv4_enabled == true ]] && [[ $_is_IPv6_enabled == false ]]
+  then
+    dyndns_update_url="${dyndns_update_url}${myip_str}=${_new_IPv4}"
+    send_request
+    request_status=$?
+  fi
+  if [[ $_is_IPv4_enabled == false ]] && [[ $_is_IPv6_enabled == true ]]
+  then
+    dyndns_update_url="${dyndns_update_url}${myipv6_str}=${_new_IPv6}"
+    send_request
+    request_status=$?
+  fi
+  debugMessage "Update URL was: $dyndns_update_url"
+  return $request_status
+}
+
 function setStatus
 {
   echo "_status=$1; _eventTime=$2; _errorCounter=$3; _statusHostname=$4; _statusUsername=$5; _statusPassword=$6" >/tmp/dynb.status
@@ -410,10 +469,10 @@ function setStatus
 function checkStatus
 {
   case $_status in
-    nochg*)
+    *nochg*)
       if [[ _errorCounter -gt 1 ]]; then
         errorMessage "The update client was spamming unnecessary update requests, something might be wrong with your IP-Check site."
-        errorMessage "Fix your config an then delete $_statusFile or restart your docker container"
+        errorMessage "Fix your config and then delete $_statusFile or restart your docker container"
         return 1
       fi
       ;;
@@ -425,8 +484,8 @@ function checkStatus
       fi
       return 0
       ;;
-    badauth | 401)
+    *badauth* | 401 | *Unauthorized*)
-      if [[ "$_statusUsername" == "$DYNB_USERNAME" && "$_statusPassword" == "$DYNB_PASSWORD" ]]; then
+      if [[ "$_statusUsername" == "$DYNB_USERNAME" &&  ("$_statusPassword" == "$DYNB_PASSWORD" || $_statusPassword == "$DYNB_TOKEN") ]]; then
         errorMessage "Invalid username password combination."
         return 1
       else rm "$_statusFile"
@@ -435,8 +494,7 @@ function checkStatus
       ;;
     badagent)
       errorMessage "Client is deactivated by provider."
-      echo "Fix your config and then manually remove $_statusFile to reset the client blockade."
+      echo "Please file an issue at GitHub or try another client :)"
-      echo "If it still fails file an issue at github or try another client :)"
       return 1
       ;;
     !donator)
@@ -451,7 +509,7 @@ function checkStatus
       echo "If it still fails file an issue at github or try another client :)"
       return 1
       ;;
-    911 | 5*)
+    911 | 5* | *'Too Many Requests'*)
       delta=$(($(date +%s) - _eventTime))
       if [[ $delta -lt 1800 ]]
       then
@@ -461,6 +519,14 @@ function checkStatus
       fi
       return 0
       ;;
+    *'Bad Request'*)
+      if [[ "$_statusUsername" == "$DYNB_USERNAME" &&  ("$_statusPassword" == "$DYNB_PASSWORD" || $_statusPassword == "$DYNB_TOKEN") ]]; then
+        errorMessage "Bad Request: Please check your credentials, maybe your token is invalid."
+        return 1
+      else rm "$_statusFile"
+      fi
+      return 0
+      ;;
     *)
       if [[ _errorCounter -gt 1 ]]
       then
@@ -528,7 +594,7 @@ function ipHasChanged
         dns_ip=$(echo "$dig_response" | head -n 1)
       fi
       _new_IPv6=$remote_ip
-      debugMessage "IPv6 from remote IP check server: $_new_IPv6, IPv4 from DNS: $dns_ip"
+      debugMessage "IPv6 from remote IP check server: $_new_IPv6, IPv6 from DNS: $dns_ip"
       ;;
     *) ;;
   esac
@@ -559,7 +625,7 @@ function handleParameters
   then rm --verbose "$_statusFile"; exit 0
   fi
   # shellcheck disable=SC2154
-  if [[ $_arg_debug == "on" ]]
+  if [[ $_arg_debug == "on" ]] || [[ $DYNB_DEBUG == true ]]
   then _debug=1
   fi
   # shellcheck disable=SC2154
@@ -619,9 +685,6 @@ function handleParameters
   then _is_IPv6_enabled=true
   fi
 
-  if [[ $DYNB_DEBUG == true ]]
-  then _debug=1
-  fi
   # shellcheck disable=SC2154
   if [[ -n $DYNB_IPv4_CHECK_SITE ]]
   then _ipv4_checker=$DYNB_IPv4_CHECK_SITE
@@ -707,6 +770,15 @@ function doDomrobotUpdates
   fi
 }
 
+function delete_status_file
+{
+  if test -f "$_statusFile"
+  then
+    debugMessage "Delete status file with previous errors"
+    rm "$_statusFile"
+  fi
+}
+
 function doDynDNS2Updates
 {
   changed=0
@@ -722,14 +794,16 @@ function doDynDNS2Updates
     then
       debugMessage "checkStatus has no errors, try update"
       if dynupdate
-      then debugMessage "DynDNS2 update success"
+      then
+        debugMessage "DynDNS2 update success"
+        delete_status_file
       else
         debugMessage "Save new status after dynupdate has failed"
         setStatus "$_response" "$(date +%s)" $((_errorCounter += 1)) "$DYNB_DYN_DOMAIN" "${DYNB_USERNAME}" "${DYNB_PASSWORD}${DYNB_TOKEN}"
       fi
     else debugMessage "Skip DynDNS2 update, checkStatus fetched previous error."
     fi
-  else debugMessage "Skip DynDNS2 update, IPs are up to date or there is a connection problem"
+  else debugMessage "Skip DynDNS2 update, IPs are up to date."
   fi
 }
 
@@ -782,11 +856,8 @@ function check_internet_connection
   fi
 }
 
-function main
+function read_config_file
 {
-  # shellcheck disable=SC1091,SC1090
-  source "$(dirname "$(realpath "$0")")/dynb-parsing.sh"
-
   # shellcheck source=.env
   if test -f "$_configFile"
   then
@@ -800,6 +871,15 @@ function main
       source "$alternativeConfig"
     fi
   fi
+}
+
+function main
+{
+  # shellcheck disable=SC1091,SC1090
+  source "$(dirname "$(realpath "$0")")/dynb-parsing.sh"
+
+  read_config_file
+
   if test -f "$_statusFile"
   then
     debugMessage "read previous status file"
@@ -817,6 +897,7 @@ function main
     while : 
     do
       doUpdates
+      debugMessage "wait $DYNB_INTERVAL seconds until next check"
       sleep $DYNB_INTERVAL
     done
   else doUpdates