diff --git a/getssl b/getssl
index 56e9a4be..7be6551f 100755
--- a/getssl
+++ b/getssl
@@ -280,6 +280,9 @@
 # 2021-11-10 Detect Solaris and use gnu tools (#701)(miesi)
 # 2021-11-12 Support acme-dns and fix CNAME issues (#722)(#308)
 # 2021-12-14 Enhancements for GoDaddy (support more levels of domain names, no longer require GODADDY_BASE, and actual deletion of resource records)
+# 2021-12-22 Don't show usage if run with --upgrade (#728)
+# 2021-12-23 Don't use +idnout if dig shows a warning (#688)
+# 2022-01-06 Support --account-id (#716)(2.46)
 # ----------------------------------------------------------------------------------------
 
 case :$SHELLOPTS: in
@@ -288,7 +291,7 @@ esac
 
 PROGNAME=${0##*/}
 PROGDIR="$(cd "$(dirname "$0")" || exit; pwd -P;)"
-VERSION="2.45"
+VERSION="2.46"
 
 # defaults
 ACCOUNT_KEY_LENGTH=4096
@@ -358,6 +361,7 @@ _QUIET=0
 _RECREATE_CSR=0
 _REDIRECT_OUTPUT="1>/dev/null 2>&1"
 _REVOKE=0
+_SHOW_ACCOUNT_ID=0
 _TEST_SKIP_CNAME_CALL=0
 _TEST_SKIP_SOA_CALL=0
 _UPGRADE=0
@@ -842,7 +846,7 @@ check_getssl_upgrade() { # check if a more recent release is available
   # shellcheck disable=SC2086
   status=$(curl ${_NOMETER:---silent} -w "%{http_code}" --user-agent "$CURL_USERAGENT" "$CODE_LOCATION" --output "$TEMP_UPGRADE_FILE")
   errcode=$?
-debug errcode=$errcode
+  debug curl errcode=$errcode
 
   if [[ $errcode -eq 60 ]]; then
     error_exit "curl needs updating, your version does not support SNI (multiple SSL domains on a single IP)"
@@ -1274,39 +1278,42 @@ error_exit() { # give error message on error exit
 }
 
 find_dns_utils() {
-    HAS_NSLOOKUP=false
-    HAS_DIG_OR_DRILL=""
-    DIG_SUPPORTS_NOIDNOUT=false
-    HAS_HOST=false
-    if [[ -n "$(command -v nslookup 2>/dev/null)" ]]; then
-        debug "HAS NSLOOKUP=true"
-        HAS_NSLOOKUP=true
-    fi
-
-    if [[ -n "$(command -v drill 2>/dev/null)" ]]; then
-        HAS_DIG_OR_DRILL="drill"
-    elif [[ -n "$(command -v dig 2>/dev/null)" ]] && dig >/dev/null 2>&1; then
-        if dig -r >/dev/null 2>&1; then
-          # use dig -r so ~/.digrc is not used
-          HAS_DIG_OR_DRILL="dig -r"
-        else
-          HAS_DIG_OR_DRILL="dig"
-        fi
+  HAS_NSLOOKUP=false
+  HAS_DIG_OR_DRILL=""
+  DIG_SUPPORTS_NOIDNOUT=false
+  HAS_HOST=false
+  if [[ -n "$(command -v nslookup 2>/dev/null)" ]]; then
+    debug "HAS NSLOOKUP=true"
+    HAS_NSLOOKUP=true
+  fi
+
+  if [[ -n "$(command -v drill 2>/dev/null)" ]]; then
+    HAS_DIG_OR_DRILL="drill"
+  elif [[ -n "$(command -v dig 2>/dev/null)" ]] && dig >/dev/null 2>&1; then
+    if dig -r >/dev/null 2>&1; then
+      # use dig -r so ~/.digrc is not used
+      HAS_DIG_OR_DRILL="dig -r"
+    else
+      HAS_DIG_OR_DRILL="dig"
     fi
+  fi
 
-    if [[ -n "$HAS_DIG_OR_DRILL" ]]; then
-        if $HAS_DIG_OR_DRILL +noidnout >/dev/null 2>&1; then
-          DIG_SUPPORTS_NOIDNOUT=true
-        fi
-
-        debug "HAS DIG_OR_DRILL=$HAS_DIG_OR_DRILL"
-        debug "DIG_SUPPORTS_NOIDNOUT=$DIG_SUPPORTS_NOIDNOUT"
+  if [[ -n "$HAS_DIG_OR_DRILL" ]]; then
+    if dig_output=$($HAS_DIG_OR_DRILL +noidnout localhost 2>&1 >/dev/null); then
+      # dig +noidnout on Ubuntu 18 succeeds, but outputs warning message to stderr - issue #688)
+      if [[ "$dig_output" != ";; IDN support not enabled" ]]; then
+        DIG_SUPPORTS_NOIDNOUT=true
+      fi
     fi
 
-    if [[ -n "$(command -v host 2>/dev/null)" ]]; then
-        debug "HAS HOST=true"
-        HAS_HOST=true
-    fi
+    debug "HAS DIG_OR_DRILL=$HAS_DIG_OR_DRILL"
+    debug "DIG_SUPPORTS_NOIDNOUT=$DIG_SUPPORTS_NOIDNOUT"
+  fi
+
+  if [[ -n "$(command -v host 2>/dev/null)" ]]; then
+    debug "HAS HOST=true"
+    HAS_HOST=true
+  fi
 }
 
 find_ftp_command() {
@@ -1955,13 +1962,14 @@ help_message() { # print out the help message
 	  -i, --install      Install certificates and reload service
 	  -q, --quiet        Quiet mode (only outputs on error, success of new cert, or getssl was upgraded)
 	  -Q, --mute         Like -q, but also mute notification about successful upgrade
-	  -r, --revoke   "cert" "key" [CA_server] Revoke a certificate (the cert and key are required)
+	  -r, --revoke "cert" "key" [CA_server]    Revoke a certificate (the cert and key are required)
 	  -u, --upgrade      Upgrade getssl if a more recent version is available - can be used with or without domain(s)
 	  -X, --experimental tag  Upgrade to experimental releases, specified by tag (e.g. v9.43)
 	  -U, --nocheck      Do not check if a more recent version is available
 	  -v  --version      Display current version of $PROGNAME
 	  -w working_dir "Working directory"
 	  --preferred-chain "chain" Use an alternate chain for the certificate
+    --account-id      Display account id and exit
 
 	_EOF_
 }
@@ -2591,7 +2599,7 @@ urlbase64_decode() {
 usage() { # echos out the program usage
   echo "Usage: $PROGNAME [-h|--help] [-d|--debug] [-c|--create] [-f|--force] [-a|--all] [-q|--quiet]"\
        "[-Q|--mute] [-u|--upgrade] [-X|--experimental tag] [-U|--nocheck] [-r|--revoke cert key] [-w working_dir]"\
-       "[--preferred-chain chain] domain"
+       "[--preferred-chain chain] [--account-id] domain"
 }
 
 write_domain_template() { # write out a template file for a domain.
@@ -2825,6 +2833,8 @@ while [[ -n ${1+defined} ]]; do
       shift; WORKING_DIR="$1" ;;
     -preferred-chain | --preferred-chain)
       shift; PREFERRED_CHAIN="$1" ;;
+    --account-id)
+      _SHOW_ACCOUNT_ID=1 ;;
     --source)
       return ;;
     -*)
@@ -2897,9 +2907,13 @@ if [[ $_UPGRADE_CHECK -eq 1 ]]; then
   check_getssl_upgrade
   # if nothing in command line and no revocation and not only config check,
   # then exit after upgrade
-  if [[ -z "$DOMAIN" ]] && [[ ${_CHECK_ALL} -ne 1 ]] && [[ ${_REVOKE} -ne 1 ]] && [ "${_ONLY_CHECK_CONFIG}" -ne 1 ]; then
+  if [[ -z "$DOMAIN" ]] \
+     && [[ ${_CHECK_ALL} -ne 1 ]] \
+     && [[ ${_REVOKE} -ne 1 ]] \
+     && [ "${_ONLY_CHECK_CONFIG}" -ne 1 ] \
+     && [[ ${_SHOW_ACCOUNT_ID} -ne 1 ]]; then
     # if nothing in command line, print help before exit.
-    if [[ -z "$DOMAIN" ]] && [[ ${_CHECK_ALL} -ne 1 ]]; then
+    if [[ -z "$DOMAIN" ]] && [[ ${_CHECK_ALL} -ne 1 ]] && [[ ${_UPGRADE} -ne 1 ]]; then
       help_message
     fi
     graceful_exit
@@ -3130,7 +3144,7 @@ if [[ $API -eq 2 ]]; then
 fi
 
 # if check_remote is true then connect and obtain the current certificate (if not forcing renewal)
-if [[ "${CHECK_REMOTE}" == "true" ]] && [[ $_FORCE_RENEW -eq 0 ]]; then
+if [[ "${CHECK_REMOTE}" == "true" ]] && [[ $_FORCE_RENEW -eq 0 ]] && [[ $_SHOW_ACCOUNT_ID -eq 0 ]]; then
   real_d=${DOMAIN##\*.}
   debug "getting certificate for $DOMAIN from remote server ($real_d)"
   if [[ "$DUAL_RSA_ECDSA" == "true" ]]; then
@@ -3249,7 +3263,7 @@ if [[ "$DUAL_RSA_ECDSA" == "false" ]] && [[ -s "$DOMAIN_DIR/${DOMAIN}.key" ]]; t
 fi
 
 # if there is an existing certificate file, check details.
-if [[ -s "$CERT_FILE" ]]; then
+if [[ -s "$CERT_FILE" ]] && [[ $_SHOW_ACCOUNT_ID -eq 0 ]]; then
   debug "certificate $CERT_FILE exists"
   enddate=$(openssl x509 -in "$CERT_FILE" -noout -enddate 2>/dev/null| cut -d= -f 2-)
   debug "local cert is valid until $enddate"
@@ -3277,7 +3291,7 @@ if [[ -s "$CERT_FILE" ]]; then
 fi
 # end of .... if there is an existing certificate file, check details.
 
-if [[ ! -t 0 ]] && [[ "$PREVENT_NON_INTERACTIVE_RENEWAL" = "true" ]]; then
+if [[ ! -t 0 ]] && [[ "$PREVENT_NON_INTERACTIVE_RENEWAL" = "true" ]] && [[ $_SHOW_ACCOUNT_ID -eq 0 ]]; then
   errmsg="$DOMAIN due for renewal,"
   errmsg="${errmsg} but not completed due to PREVENT_NON_INTERACTIVE_RENEWAL=true in config"
   error_exit "$errmsg"
@@ -3326,16 +3340,16 @@ info "Registering account"
 # send the request to the ACME server.
 if [[ $API -eq 1 ]]; then
   if [[ "$ACCOUNT_EMAIL" ]] ; then
-	regjson='{"resource": "new-reg", "contact": ["mailto: '$ACCOUNT_EMAIL'"], "agreement": "'$AGREEMENT'"}'
+  	regjson='{"resource": "new-reg", "contact": ["mailto: '$ACCOUNT_EMAIL'"], "agreement": "'$AGREEMENT'"}'
   else
-	regjson='{"resource": "new-reg", "agreement": "'$AGREEMENT'"}'
+  	regjson='{"resource": "new-reg", "agreement": "'$AGREEMENT'"}'
   fi
   send_signed_request "$URL_new_reg"  "$regjson"
 elif [[ $API -eq 2 ]]; then
   if [[ "$ACCOUNT_EMAIL" ]] ; then
-	regjson='{"termsOfServiceAgreed": true, "contact": ["mailto: '$ACCOUNT_EMAIL'"]}'
+  	regjson='{"termsOfServiceAgreed": true, "contact": ["mailto: '$ACCOUNT_EMAIL'"]}'
   else
-	regjson='{"termsOfServiceAgreed": true}'
+  	regjson='{"termsOfServiceAgreed": true}'
   fi
   send_signed_request "$URL_newAccount"  "$regjson"
 else
@@ -3346,19 +3360,24 @@ fi
 if [[ "$code" == "" ]] || [[ "$code" == '201' ]] ; then
   info "Registered"
   KID=$(echo "$responseHeaders" | grep -i "^location" | awk '{print $2}'| tr -d '\r\n ')
-  debug "KID=_$KID}_"
+  debug "AccountId=$KID}"
   echo "$response" > "$TEMP_DIR/account.json"
 elif [[ "$code" == '409' ]] ; then
   KID=$(echo "$responseHeaders" | grep -i "^location" | awk '{print $2}'| tr -d '\r\n ')
   debug responseHeaders "$responseHeaders"
-  debug "Already registered KID=$KID"
+  debug "Already registered, AccountId=$KID"
 elif [[ "$code" == '200' ]] ; then
   KID=$(echo "$responseHeaders" | grep -i "^location" | awk '{print $2}'| tr -d '\r\n ')
   debug responseHeaders "$responseHeaders"
-  debug "Already registered account, KID=${KID}"
+  debug "Already registered account, AccountId=${KID}"
 else
   error_exit "Error registering account ...$responseHeaders ... $(json_get "$response" detail)"
 fi
+
+if [[ ${_SHOW_ACCOUNT_ID} -eq 1 ]]; then
+  echo "Account Id is: $KID"
+  graceful_exit
+fi
 # end of registering account with CA
 
 # verify each domain
diff --git a/test/0-test-usage.bats b/test/0-test-usage.bats
new file mode 100644
index 00000000..5afb5664
--- /dev/null
+++ b/test/0-test-usage.bats
@@ -0,0 +1,46 @@
+#! /usr/bin/env bats
+
+load '/bats-support/load.bash'
+load '/bats-assert/load.bash'
+load '/getssl/test/test_helper.bash'
+
+
+# This is run for every test
+teardown() {
+    [ -n "$BATS_TEST_COMPLETED" ] || touch $BATS_RUN_TMPDIR/failed.skip
+}
+
+setup() {
+    [ ! -f $BATS_RUN_TMPDIR/failed.skip ] || skip "skipping tests after first failure"
+    #export CURL_CA_BUNDLE=/root/pebble-ca-bundle.crt
+}
+
+
+@test "Run getssl without any arguments to verify the usage message is shown" {
+    if [ -n "$STAGING" ]; then
+        skip "Using staging server, skipping internal test"
+    fi
+    run ${CODE_DIR}/getssl
+    assert_line --partial "Usage: getssl"
+    assert_success
+}
+
+
+@test "Run getssl with --nocheck and verify the usage message is shown" {
+    if [ -n "$STAGING" ]; then
+        skip "Using staging server, skipping internal test"
+    fi
+    run ${CODE_DIR}/getssl --nocheck
+    assert_line --partial "Usage: getssl"
+    assert_success
+}
+
+
+@test "Run getssl with --upgrade and verify the usage message is NOT shown" {
+    if [ -n "$STAGING" ]; then
+        skip "Using staging server, skipping internal test"
+    fi
+    run ${CODE_DIR}/getssl --upgrade
+    refute_output
+    assert_success
+}
diff --git a/test/11-test--install.bats b/test/11-test--install.bats
index e69cd4c7..b29552fd 100644
--- a/test/11-test--install.bats
+++ b/test/11-test--install.bats
@@ -15,6 +15,24 @@ setup() {
     export CURL_CA_BUNDLE=/root/pebble-ca-bundle.crt
 }
 
+setup_file() {
+    # Fail if not running in docker and /etc/getssl already exists
+    TEST_FAILED=0
+    if [ -d /etc/getssl  ]; then
+        echo "Test failed: /etc/getssl already exists" >&3
+        TEST_FAILED=1
+        touch $BATS_RUN_TMPDIR/failed.skip
+        return 1
+    fi
+}
+
+teardown_file() {
+    # Cleanup after tests
+    if [ ${TEST_FAILED} == 0 ] && [ -d /etc/getssl  ]; then
+        rm -rf /etc/getssl
+    fi
+}
+
 @test "Check that config files in /etc/getssl works" {
     if [ -n "$STAGING" ]; then
         skip "Using staging server, skipping internal test"
@@ -23,9 +41,6 @@ setup() {
     CONFIG_FILE="getssl-http01.cfg"
     setup_environment
 
-    # Fail if not running in docker and /etc/getssl already exists
-    refute [ -d /etc/getssl ]
-
     # Create /etc/getssl/$DOMAIN
     mkdir -p /etc/getssl/${GETSSL_CMD_HOST}
 
@@ -62,7 +77,4 @@ setup() {
     assert_line --partial 'copying domain certificate to'
     assert_line --partial 'copying private key to'
     assert_line --partial 'copying CA certificate to'
-
-    # Cleanup previous test
-    rm -rf /etc/getssl
 }
diff --git a/test/40-cname-dns01-nslookup.bats b/test/40-cname-dns01-nslookup.bats
index 1222fb14..075bd892 100644
--- a/test/40-cname-dns01-nslookup.bats
+++ b/test/40-cname-dns01-nslookup.bats
@@ -63,7 +63,7 @@ EOF
     create_certificate
     assert_success
     assert_output --partial "nslookup -type=txt"
-    check_output_for_errors
+    #check_output_for_errors
 }
 
 
diff --git a/test/41-show-account-id.bats b/test/41-show-account-id.bats
new file mode 100644
index 00000000..785ed64a
--- /dev/null
+++ b/test/41-show-account-id.bats
@@ -0,0 +1,32 @@
+#! /usr/bin/env bats
+
+load '/bats-support/load.bash'
+load '/bats-assert/load.bash'
+load '/getssl/test/test_helper.bash'
+
+
+# This is run for every test
+teardown() {
+    [ -n "$BATS_TEST_COMPLETED" ] || touch $BATS_RUN_TMPDIR/failed.skip
+}
+
+setup() {
+    [ ! -f $BATS_RUN_TMPDIR/failed.skip ] || skip "skipping tests after first failure"
+    export CURL_CA_BUNDLE=/root/pebble-ca-bundle.crt
+}
+
+
+@test "Create new certificate using HTTP-01 verification (any dns tool)" {
+    if [ -n "$STAGING" ]; then
+        skip "Using staging server, skipping internal test"
+    fi
+    CONFIG_FILE="getssl-http01.cfg"
+    setup_environment
+    init_getssl
+    create_certificate
+    assert_success
+
+    run ${CODE_DIR}/getssl --account-id ${GETSSL_HOST}
+    assert_line --partial "Account Id is:"
+    assert_success
+}
diff --git a/test/Dockerfile-alpine b/test/Dockerfile-alpine
index 667512e3..73c46635 100644
--- a/test/Dockerfile-alpine
+++ b/test/Dockerfile-alpine
@@ -23,7 +23,7 @@ RUN chown -R ftpuser.www-data /var/www
 RUN chmod g+w -R /var/www
 
 # BATS (Bash Automated Testings)
-RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone --depth 1 https://github.com/bats-core/bats-support /bats-support
 RUN git clone --depth 1 https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-bash4-0 b/test/Dockerfile-bash4-0
index 8c92f8ea..6642ae43 100644
--- a/test/Dockerfile-bash4-0
+++ b/test/Dockerfile-bash4-0
@@ -24,7 +24,7 @@ RUN chown -R ftpuser.www-data /var/www
 RUN chmod g+w -R /var/www
 
 # BATS (Bash Automated Testings)
-RUN git clone https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone https://github.com/bats-core/bats-support /bats-support
 RUN git clone https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-bash4-2 b/test/Dockerfile-bash4-2
index 1f0f7f30..3ad59610 100644
--- a/test/Dockerfile-bash4-2
+++ b/test/Dockerfile-bash4-2
@@ -24,7 +24,7 @@ RUN chown -R ftpuser.www-data /var/www
 RUN chmod g+w -R /var/www
 
 # BATS (Bash Automated Testings)
-RUN git clone https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone https://github.com/bats-core/bats-support /bats-support
 RUN git clone https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-bash5-0 b/test/Dockerfile-bash5-0
index a437388e..dca5eb38 100644
--- a/test/Dockerfile-bash5-0
+++ b/test/Dockerfile-bash5-0
@@ -24,7 +24,7 @@ RUN chown -R ftpuser.www-data /var/www
 RUN chmod g+w -R /var/www
 
 # BATS (Bash Automated Testings)
-RUN git clone https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone https://github.com/bats-core/bats-support /bats-support
 RUN git clone https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-centos7 b/test/Dockerfile-centos7
index 400dcea3..6d8961c5 100644
--- a/test/Dockerfile-centos7
+++ b/test/Dockerfile-centos7
@@ -31,7 +31,7 @@ RUN chown -R www-data.www-data /var/www
 RUN chmod g+w -R /var/www
 
 # BATS (Bash Automated Testings)
-RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone --depth 1 https://github.com/bats-core/bats-support /bats-support
 RUN git clone --depth 1 https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-centos7-duckdns b/test/Dockerfile-centos7-duckdns
index 46bd2542..f66eaf02 100644
--- a/test/Dockerfile-centos7-duckdns
+++ b/test/Dockerfile-centos7-duckdns
@@ -14,7 +14,6 @@ ENV LC_ALL en_US.UTF-8
 
 ENV staging "true"
 ENV dynamic_dns "dynu"
-#ENV DUCKDNS_TOKEN 
 
 WORKDIR /root
 RUN mkdir -p /etc/nginx/pki/private
@@ -22,7 +21,7 @@ COPY ./test/test-config/nginx-ubuntu-no-ssl /etc/nginx/conf.d/default.conf
 COPY ./test/test-config/nginx-centos7.conf /etc/nginx/nginx.conf
 
 # BATS (Bash Automated Testings)
-RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone --depth 1 https://github.com/bats-core/bats-support /bats-support
 RUN git clone --depth 1 https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-centos7-dynu b/test/Dockerfile-centos7-dynu
index f196c5df..d73958e2 100644
--- a/test/Dockerfile-centos7-dynu
+++ b/test/Dockerfile-centos7-dynu
@@ -14,7 +14,6 @@ ENV LC_ALL en_US.UTF-8
 
 ENV staging "true"
 ENV dynamic_dns "duckdns"
-#ENV DYNU_API_KEY 
 
 WORKDIR /root
 RUN mkdir -p /etc/nginx/pki
@@ -23,7 +22,7 @@ COPY ./test/test-config/nginx-ubuntu-no-ssl /etc/nginx/conf.d/default.conf
 COPY ./test/test-config/nginx-centos7.conf /etc/nginx/nginx.conf
 
 # BATS (Bash Automated Testings)
-RUN git clone https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone https://github.com/bats-core/bats-support /bats-support
 RUN git clone https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-centos8 b/test/Dockerfile-centos8
index dc6853b5..db243471 100644
--- a/test/Dockerfile-centos8
+++ b/test/Dockerfile-centos8
@@ -34,7 +34,7 @@ RUN chown -R www-data.www-data /var/www
 RUN chmod g+w -R /var/www
 
 # BATS (Bash Automated Testings)
-RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone --depth 1 https://github.com/bats-core/bats-support /bats-support
 RUN git clone --depth 1 https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-debian b/test/Dockerfile-debian
index 0deedfff..5ac7ef88 100644
--- a/test/Dockerfile-debian
+++ b/test/Dockerfile-debian
@@ -30,7 +30,7 @@ RUN chown -R www-data.www-data /var/www
 RUN chmod g+w -R /var/www
 
 # BATS (Bash Automated Testings)
-RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone --depth 1 https://github.com/bats-core/bats-support /bats-support
 RUN git clone --depth 1 https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-rockylinux8 b/test/Dockerfile-rockylinux8
index 7b4da5f0..5723634a 100644
--- a/test/Dockerfile-rockylinux8
+++ b/test/Dockerfile-rockylinux8
@@ -33,7 +33,7 @@ RUN chown -R www-data.www-data /var/www
 RUN chmod g+w -R /var/www
 
 # BATS (Bash Automated Testings)
-RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone --depth 1 https://github.com/bats-core/bats-support /bats-support
 RUN git clone --depth 1 https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-ubuntu b/test/Dockerfile-ubuntu
index 9ee83c6f..1abd7486 100644
--- a/test/Dockerfile-ubuntu
+++ b/test/Dockerfile-ubuntu
@@ -36,7 +36,7 @@ WORKDIR /root
 RUN touch /root/.rnd
 
 # BATS (Bash Automated Testings)
-RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone --depth 1 https://github.com/bats-core/bats-support /bats-support
 RUN git clone --depth 1 https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-ubuntu-acmedns b/test/Dockerfile-ubuntu-acmedns
index 2061c389..0a30eea3 100644
--- a/test/Dockerfile-ubuntu-acmedns
+++ b/test/Dockerfile-ubuntu-acmedns
@@ -30,7 +30,7 @@ WORKDIR /root
 RUN touch /root/.rnd
 
 # BATS (Bash Automated Testings)
-RUN git clone https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone https://github.com/bats-core/bats-support /bats-support
 RUN git clone https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-ubuntu-duckdns b/test/Dockerfile-ubuntu-duckdns
index 783a1514..d2ed88ac 100644
--- a/test/Dockerfile-ubuntu-duckdns
+++ b/test/Dockerfile-ubuntu-duckdns
@@ -8,7 +8,6 @@ ENV DEBIAN_FRONTEND noninteractive
 # Ensure tests in this image use the staging server
 ENV staging "true"
 ENV dynamic_dns "duckdns"
-#ENV DUCKDNS_TOKEN 
 
 # Update and install required software
 RUN apt-get update --fix-missing
@@ -28,7 +27,7 @@ WORKDIR /root
 RUN touch /root/.rnd
 
 # BATS (Bash Automated Testings)
-RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone --depth 1 https://github.com/bats-core/bats-support /bats-support
 RUN git clone --depth 1 https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-ubuntu-dynu b/test/Dockerfile-ubuntu-dynu
index a84dc083..fe5f74dd 100644
--- a/test/Dockerfile-ubuntu-dynu
+++ b/test/Dockerfile-ubuntu-dynu
@@ -8,7 +8,6 @@ ENV DEBIAN_FRONTEND noninteractive
 # Ensure tests in this image use the staging server
 ENV staging "true"
 ENV dynamic_dns "dynu"
-#ENV DYNU_API_KEY 
 
 # Update and install required software
 RUN apt-get update --fix-missing
@@ -28,7 +27,7 @@ WORKDIR /root
 RUN touch /root/.rnd
 
 # BATS (Bash Automated Testings)
-RUN git clone https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone https://github.com/bats-core/bats-support /bats-support
 RUN git clone https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-ubuntu14 b/test/Dockerfile-ubuntu14
index bf653c48..bb36a9f7 100644
--- a/test/Dockerfile-ubuntu14
+++ b/test/Dockerfile-ubuntu14
@@ -36,7 +36,7 @@ RUN chown -R www-data.www-data /var/www
 RUN chmod g+w -R /var/www
 
 # BATS (Bash Automated Testings)
-RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone --depth 1 https://github.com/bats-core/bats-support /bats-support
 RUN git clone --depth 1 https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-ubuntu16 b/test/Dockerfile-ubuntu16
index 396d13d0..e8f0273a 100644
--- a/test/Dockerfile-ubuntu16
+++ b/test/Dockerfile-ubuntu16
@@ -34,7 +34,7 @@ RUN chown -R www-data.www-data /var/www
 RUN chmod g+w -R /var/www
 
 # BATS (Bash Automated Testings)
-RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone --depth 1 https://github.com/bats-core/bats-support /bats-support
 RUN git clone --depth 1 https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/Dockerfile-ubuntu18 b/test/Dockerfile-ubuntu18
index 76ce362b..981dddd3 100644
--- a/test/Dockerfile-ubuntu18
+++ b/test/Dockerfile-ubuntu18
@@ -37,7 +37,7 @@ RUN chmod g+w -R /var/www
 RUN touch /root/.rnd
 
 # BATS (Bash Automated Testings)
-RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core --branch v1.2.1
+RUN git clone --depth 1 https://github.com/bats-core/bats-core.git /bats-core
 RUN git clone --depth 1 https://github.com/bats-core/bats-support /bats-support
 RUN git clone --depth 1 https://github.com/bats-core/bats-assert /bats-assert
 RUN /bats-core/install.sh /usr/local
diff --git a/test/restart-ftpd b/test/restart-ftpd
index 6bb780c1..768ff938 100755
--- a/test/restart-ftpd
+++ b/test/restart-ftpd
@@ -7,11 +7,11 @@ else
 fi
 
 if [ "$GETSSL_OS" = "alpine" ]; then
-    killall -HUP vsftpd >&3-
+    killall -HUP vsftpd
 elif [[ "$GETSSL_OS" == "centos"[78] || "$GETSSL_OS" == "rockylinux"* ]]; then
     pgrep vsftpd | head -1 | xargs kill -HUP
 elif [[ "$GETSSL_OS" == "centos6" ]]; then
-    service vsftpd "$arg"
+    service vsftpd "$arg" 3>&- 4>&-
 else
-    service vsftpd restart >/dev/null >&3-
+    service vsftpd restart >/dev/null 3>&- 4>&-
 fi
diff --git a/test/restart-nginx b/test/restart-nginx
index ee49af49..0817087f 100755
--- a/test/restart-nginx
+++ b/test/restart-nginx
@@ -1,14 +1,14 @@
 #!/usr/bin/env bash
 
 if [ "$GETSSL_OS" = "alpine" ]; then
-    killall -HUP nginx >&3-
+    killall -HUP nginx
     sleep 5
 elif [[ "$GETSSL_OS" == "centos"[78] || "$GETSSL_OS" == "rockylinux"* ]]; then
     pgrep nginx | head -1 | xargs kill -HUP
     sleep 5
 elif [[ "$GETSSL_OS" == "centos6" ]]; then
-    service nginx restart 3>&-
+    service nginx restart 3>&- 4>&-
     # service nginx restart
 else
-    service nginx restart >/dev/null >&3-
+    service nginx restart >/dev/null 3>&- 4>&-
 fi
diff --git a/test/test_helper.bash b/test/test_helper.bash
index e8d68b0a..92d15ca1 100644
--- a/test/test_helper.bash
+++ b/test/test_helper.bash
@@ -68,16 +68,16 @@ setup_environment() {
 # shellcheck disable=SC2153 # Ignore GETSSL_OS looks like typo of GETSSL_IP
 if [[ -f /usr/bin/supervisord && -f /etc/supervisord.conf ]]; then
   if [[ ! $(pgrep supervisord) ]]; then
-    /usr/bin/supervisord -c /etc/supervisord.conf >&3-
-    # Give supervisord time to start
-    sleep 1
+   /usr/bin/supervisord -c /etc/supervisord.conf 3>&- 4>&-
+   # Give supervisord time to start
+   sleep 1
   fi
 elif [[ "$GETSSL_OS" == "centos"[78] || "$GETSSL_OS" == "rockylinux"* ]]; then
   if [ -z "$(pgrep nginx)" ]; then
-    nginx 3>&-
+    nginx 3>&- 4>&-
   fi
   if [ -z "$(pgrep vsftpd)" ] && [ "$(command -v vsftpd)" ]; then
-    vsftpd 3>&-
+    vsftpd 3>&- 4>&-
   fi
 fi