diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..8d0f618
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,52 @@
+FROM alpine
+
+RUN apk update -f \
+  && apk --no-cache add -f \
+  openssl \
+  curl \
+  netcat-openbsd
+
+ENV LE_CONFIG_HOME /acme.sh
+
+ENV AUTO_UPGRADE 1
+
+#Install
+RUN mkdir -p /install_acme.sh/
+ADD ./ /install_acme.sh/
+RUN cd /install_acme.sh && ([ -f /install_acme.sh/acme.sh ] && /install_acme.sh/acme.sh --install || curl https://get.acme.sh | sh)
+RUN rm -rf /install_acme.sh/
+
+RUN ln -s  /root/.acme.sh/acme.sh  /usr/local/bin/acme.sh
+
+RUN for verb in help \ 
+  version \
+  install \
+  uninstall \
+  upgrade \
+  issue \
+  signcsr \
+  deploy \
+  install-cert \
+  renew \
+  renew-all \
+  revoke \
+  remove \
+  list \
+  showcsr \
+  install-cronjob \
+  uninstall-cronjob \
+  cron \
+  toPkcs \
+  toPkcs8 \
+  update-account \
+  register-account \
+  create-account-key \
+  create-domain-key \
+  createCSR \
+  deactivate \
+  ; do \
+    printf -- "%b" "#!/usr/bin/env sh\n/root/.acme.sh/acme.sh --${verb} --config-home /acme.sh \"\$@\"" >/usr/local/bin/--${verb} && chmod +x /usr/local/bin/--${verb} \
+  ; done
+
+ENTRYPOINT ["/root/.acme.sh/acme.sh", "--config-home", "/acme.sh"]
+CMD ["--help"]
diff --git a/README.md b/README.md
index 014f0db..e0c1e7d 100644
--- a/README.md
+++ b/README.md
@@ -7,11 +7,13 @@
 - Purely written in Shell with no dependencies on python or the official Let's Encrypt client.
 - Just one script to issue, renew and install your certificates automatically.
 - DOES NOT require `root/sudoer` access.
+- Docker friendly
 
 It's probably the `easiest&smallest&smartest` shell script to automatically issue & renew the free certificates from Let's Encrypt.
 
 Wiki: https://github.com/Neilpang/acme.sh/wiki
 
+For Docker Fans: [acme.sh :two_hearts: Docker ](https://github.com/Neilpang/acme.sh/wiki/Run-acme.sh-in-docker)
 
 Twitter: [@neilpangxa](https://twitter.com/neilpangxa)
 
@@ -329,7 +331,7 @@ Just set the `length` parameter with a prefix `ec-`.
 
 For example:
 
-### Single domain ECC cerfiticate
+### Single domain ECC certificate
 
 ```bash
 acme.sh --issue -w /home/wwwroot/example.com -d example.com --keylength ec-256
diff --git a/acme.sh b/acme.sh
index 244f72e..b6b0c84 100755
--- a/acme.sh
+++ b/acme.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-VER=2.6.7
+VER=2.6.8
 
 PROJECT_NAME="acme.sh"
 
@@ -107,7 +107,7 @@ __green() {
   if [ "$__INTERACTIVE" ]; then
     printf '\033[1;31;32m'
   fi
-  printf -- "$1"
+  printf -- "%b" "$1"
   if [ "$__INTERACTIVE" ]; then
     printf '\033[0m'
   fi
@@ -117,7 +117,7 @@ __red() {
   if [ "$__INTERACTIVE" ]; then
     printf '\033[1;31;40m'
   fi
-  printf -- "$1"
+  printf -- "%b" "$1"
   if [ "$__INTERACTIVE" ]; then
     printf '\033[0m'
   fi
@@ -138,8 +138,8 @@ _printargs() {
 _dlg_versions() {
   echo "Diagnosis versions: "
   echo "openssl:$ACME_OPENSSL_BIN"
-  if _exists "$ACME_OPENSSL_BIN"; then
-    $ACME_OPENSSL_BIN version 2>&1
+  if _exists "${ACME_OPENSSL_BIN:-openssl}"; then
+    ${ACME_OPENSSL_BIN:-openssl} version 2>&1
   else
     echo "$ACME_OPENSSL_BIN doesn't exists."
   fi
@@ -340,7 +340,7 @@ _hasfield() {
     _sep=","
   fi
 
-  for f in $(echo "$_str" | tr ',' ' '); do
+  for f in $(echo "$_str" | tr "$_sep" ' '); do
     if [ "$f" = "$_field" ]; then
       _debug2 "'$_str' contains '$_field'"
       return 0 #contains ok
@@ -790,19 +790,19 @@ _base64() {
   [ "" ] #urgly
   if [ "$1" ]; then
     _debug3 "base64 multiline:'$1'"
-    $ACME_OPENSSL_BIN base64 -e
+    ${ACME_OPENSSL_BIN:-openssl} base64 -e
   else
     _debug3 "base64 single line."
-    $ACME_OPENSSL_BIN base64 -e | tr -d '\r\n'
+    ${ACME_OPENSSL_BIN:-openssl} base64 -e | tr -d '\r\n'
   fi
 }
 
 #Usage: multiline
 _dbase64() {
   if [ "$1" ]; then
-    $ACME_OPENSSL_BIN base64 -d -A
+    ${ACME_OPENSSL_BIN:-openssl} base64 -d -A
   else
-    $ACME_OPENSSL_BIN base64 -d
+    ${ACME_OPENSSL_BIN:-openssl} base64 -d
   fi
 }
 
@@ -819,9 +819,9 @@ _digest() {
 
   if [ "$alg" = "sha256" ] || [ "$alg" = "sha1" ] || [ "$alg" = "md5" ]; then
     if [ "$outputhex" ]; then
-      $ACME_OPENSSL_BIN dgst -"$alg" -hex | cut -d = -f 2 | tr -d ' '
+      ${ACME_OPENSSL_BIN:-openssl} dgst -"$alg" -hex | cut -d = -f 2 | tr -d ' '
     else
-      $ACME_OPENSSL_BIN dgst -"$alg" -binary | _base64
+      ${ACME_OPENSSL_BIN:-openssl} dgst -"$alg" -binary | _base64
     fi
   else
     _err "$alg is not supported yet"
@@ -844,9 +844,9 @@ _hmac() {
 
   if [ "$alg" = "sha256" ] || [ "$alg" = "sha1" ]; then
     if [ "$outputhex" ]; then
-      ($ACME_OPENSSL_BIN dgst -"$alg" -mac HMAC -macopt "hexkey:$secret_hex" 2>/dev/null || $ACME_OPENSSL_BIN dgst -"$alg" -hmac "$(printf "%s" "$secret_hex" | _h2b)") | cut -d = -f 2 | tr -d ' '
+      (${ACME_OPENSSL_BIN:-openssl} dgst -"$alg" -mac HMAC -macopt "hexkey:$secret_hex" 2>/dev/null || ${ACME_OPENSSL_BIN:-openssl} dgst -"$alg" -hmac "$(printf "%s" "$secret_hex" | _h2b)") | cut -d = -f 2 | tr -d ' '
     else
-      $ACME_OPENSSL_BIN dgst -"$alg" -mac HMAC -macopt "hexkey:$secret_hex" -binary 2>/dev/null || $ACME_OPENSSL_BIN dgst -"$alg" -hmac "$(printf "%s" "$secret_hex" | _h2b)" -binary
+      ${ACME_OPENSSL_BIN:-openssl} dgst -"$alg" -mac HMAC -macopt "hexkey:$secret_hex" -binary 2>/dev/null || ${ACME_OPENSSL_BIN:-openssl} dgst -"$alg" -hmac "$(printf "%s" "$secret_hex" | _h2b)" -binary
     fi
   else
     _err "$alg is not supported yet"
@@ -865,7 +865,7 @@ _sign() {
     return 1
   fi
 
-  _sign_openssl="$ACME_OPENSSL_BIN   dgst -sign $keyfile "
+  _sign_openssl="${ACME_OPENSSL_BIN:-openssl} dgst -sign $keyfile "
   if [ "$alg" = "sha256" ]; then
     _sign_openssl="$_sign_openssl -$alg"
   else
@@ -876,10 +876,10 @@ _sign() {
   if grep "BEGIN RSA PRIVATE KEY" "$keyfile" >/dev/null 2>&1; then
     $_sign_openssl | _base64
   elif grep "BEGIN EC PRIVATE KEY" "$keyfile" >/dev/null 2>&1; then
-    if ! _signedECText="$($_sign_openssl | $ACME_OPENSSL_BIN asn1parse -inform DER)"; then
+    if ! _signedECText="$($_sign_openssl | ${ACME_OPENSSL_BIN:-openssl} asn1parse -inform DER)"; then
       _err "Sign failed: $_sign_openssl"
       _err "Key file: $keyfile"
-      _err "Key content:$(wc -l <"$keyfile") lises"
+      _err "Key content:$(wc -l <"$keyfile") lines"
       return 1
     fi
     _debug3 "_signedECText" "$_signedECText"
@@ -948,10 +948,10 @@ _createkey() {
 
   if _isEccKey "$length"; then
     _debug "Using ec name: $eccname"
-    $ACME_OPENSSL_BIN ecparam -name "$eccname" -genkey 2>/dev/null >"$f"
+    ${ACME_OPENSSL_BIN:-openssl} ecparam -name "$eccname" -genkey 2>/dev/null >"$f"
   else
     _debug "Using RSA: $length"
-    $ACME_OPENSSL_BIN genrsa "$length" 2>/dev/null >"$f"
+    ${ACME_OPENSSL_BIN:-openssl} genrsa "$length" 2>/dev/null >"$f"
   fi
 
   if [ "$?" != "0" ]; then
@@ -1038,9 +1038,9 @@ _createcsr() {
   _csr_cn="$(_idn "$domain")"
   _debug2 _csr_cn "$_csr_cn"
   if _contains "$(uname -a)" "MINGW"; then
-    $ACME_OPENSSL_BIN req -new -sha256 -key "$csrkey" -subj "//CN=$_csr_cn" -config "$csrconf" -out "$csr"
+    ${ACME_OPENSSL_BIN:-openssl} req -new -sha256 -key "$csrkey" -subj "//CN=$_csr_cn" -config "$csrconf" -out "$csr"
   else
-    $ACME_OPENSSL_BIN req -new -sha256 -key "$csrkey" -subj "/CN=$_csr_cn" -config "$csrconf" -out "$csr"
+    ${ACME_OPENSSL_BIN:-openssl} req -new -sha256 -key "$csrkey" -subj "/CN=$_csr_cn" -config "$csrconf" -out "$csr"
   fi
 }
 
@@ -1052,7 +1052,7 @@ _signcsr() {
   cert="$4"
   _debug "_signcsr"
 
-  _msg="$($ACME_OPENSSL_BIN x509 -req -days 365 -in "$csr" -signkey "$key" -extensions v3_req -extfile "$conf" -out "$cert" 2>&1)"
+  _msg="$(${ACME_OPENSSL_BIN:-openssl} x509 -req -days 365 -in "$csr" -signkey "$key" -extensions v3_req -extfile "$conf" -out "$cert" 2>&1)"
   _ret="$?"
   _debug "$_msg"
   return $_ret
@@ -1065,7 +1065,7 @@ _readSubjectFromCSR() {
     _usage "_readSubjectFromCSR mycsr.csr"
     return 1
   fi
-  $ACME_OPENSSL_BIN req -noout -in "$_csrfile" -subject | _egrep_o "CN *=.*" | cut -d = -f 2 | cut -d / -f 1 | tr -d '\n'
+  ${ACME_OPENSSL_BIN:-openssl} req -noout -in "$_csrfile" -subject | _egrep_o "CN *=.*" | cut -d = -f 2 | cut -d / -f 1 | tr -d '\n'
 }
 
 #_csrfile
@@ -1080,7 +1080,7 @@ _readSubjectAltNamesFromCSR() {
   _csrsubj="$(_readSubjectFromCSR "$_csrfile")"
   _debug _csrsubj "$_csrsubj"
 
-  _dnsAltnames="$($ACME_OPENSSL_BIN req -noout -text -in "$_csrfile" | grep "^ *DNS:.*" | tr -d ' \n')"
+  _dnsAltnames="$(${ACME_OPENSSL_BIN:-openssl} req -noout -text -in "$_csrfile" | grep "^ *DNS:.*" | tr -d ' \n')"
   _debug _dnsAltnames "$_dnsAltnames"
 
   if _contains "$_dnsAltnames," "DNS:$_csrsubj,"; then
@@ -1101,7 +1101,8 @@ _readKeyLengthFromCSR() {
     return 1
   fi
 
-  _outcsr="$($ACME_OPENSSL_BIN req -noout -text -in "$_csrfile")"
+  _outcsr="$(${ACME_OPENSSL_BIN:-openssl} req -noout -text -in "$_csrfile")"
+  _debug2 _outcsr "$_outcsr"
   if _contains "$_outcsr" "Public Key Algorithm: id-ecPublicKey"; then
     _debug "ECC CSR"
     echo "$_outcsr" | _egrep_o "^ *ASN1 OID:.*" | cut -d ':' -f 2 | tr -d ' '
@@ -1159,9 +1160,9 @@ toPkcs() {
   _initpath "$domain" "$_isEcc"
 
   if [ "$pfxPassword" ]; then
-    $ACME_OPENSSL_BIN pkcs12 -export -out "$CERT_PFX_PATH" -inkey "$CERT_KEY_PATH" -in "$CERT_PATH" -certfile "$CA_CERT_PATH" -password "pass:$pfxPassword"
+    ${ACME_OPENSSL_BIN:-openssl} pkcs12 -export -out "$CERT_PFX_PATH" -inkey "$CERT_KEY_PATH" -in "$CERT_PATH" -certfile "$CA_CERT_PATH" -password "pass:$pfxPassword"
   else
-    $ACME_OPENSSL_BIN pkcs12 -export -out "$CERT_PFX_PATH" -inkey "$CERT_KEY_PATH" -in "$CERT_PATH" -certfile "$CA_CERT_PATH"
+    ${ACME_OPENSSL_BIN:-openssl} pkcs12 -export -out "$CERT_PFX_PATH" -inkey "$CERT_KEY_PATH" -in "$CERT_PATH" -certfile "$CA_CERT_PATH"
   fi
 
   if [ "$?" = "0" ]; then
@@ -1183,7 +1184,7 @@ toPkcs8() {
 
   _initpath "$domain" "$_isEcc"
 
-  $ACME_OPENSSL_BIN pkcs8 -topk8 -inform PEM -outform PEM -nocrypt -in "$CERT_KEY_PATH" -out "$CERT_PKCS8_PATH"
+  ${ACME_OPENSSL_BIN:-openssl} pkcs8 -topk8 -inform PEM -outform PEM -nocrypt -in "$CERT_KEY_PATH" -out "$CERT_PKCS8_PATH"
 
   if [ "$?" = "0" ]; then
     _info "Success, $CERT_PKCS8_PATH"
@@ -1344,7 +1345,7 @@ _calcjwk() {
 
   if grep "BEGIN RSA PRIVATE KEY" "$keyfile" >/dev/null 2>&1; then
     _debug "RSA key"
-    pub_exp=$($ACME_OPENSSL_BIN rsa -in "$keyfile" -noout -text | grep "^publicExponent:" | cut -d '(' -f 2 | cut -d 'x' -f 2 | cut -d ')' -f 1)
+    pub_exp=$(${ACME_OPENSSL_BIN:-openssl} rsa -in "$keyfile" -noout -text | grep "^publicExponent:" | cut -d '(' -f 2 | cut -d 'x' -f 2 | cut -d ')' -f 1)
     if [ "${#pub_exp}" = "5" ]; then
       pub_exp=0$pub_exp
     fi
@@ -1353,7 +1354,7 @@ _calcjwk() {
     e=$(echo "$pub_exp" | _h2b | _base64)
     _debug3 e "$e"
 
-    modulus=$($ACME_OPENSSL_BIN rsa -in "$keyfile" -modulus -noout | cut -d '=' -f 2)
+    modulus=$(${ACME_OPENSSL_BIN:-openssl} rsa -in "$keyfile" -modulus -noout | cut -d '=' -f 2)
     _debug3 modulus "$modulus"
     n="$(printf "%s" "$modulus" | _h2b | _base64 | _url_replace)"
     _debug3 n "$n"
@@ -1366,12 +1367,12 @@ _calcjwk() {
     JWK_HEADERPLACE_PART2='", "alg": "RS256", "jwk": '$jwk'}'
   elif grep "BEGIN EC PRIVATE KEY" "$keyfile" >/dev/null 2>&1; then
     _debug "EC key"
-    crv="$($ACME_OPENSSL_BIN ec -in "$keyfile" -noout -text 2>/dev/null | grep "^NIST CURVE:" | cut -d ":" -f 2 | tr -d " \r\n")"
+    crv="$(${ACME_OPENSSL_BIN:-openssl} ec -in "$keyfile" -noout -text 2>/dev/null | grep "^NIST CURVE:" | cut -d ":" -f 2 | tr -d " \r\n")"
     _debug3 crv "$crv"
 
     if [ -z "$crv" ]; then
       _debug "Let's try ASN1 OID"
-      crv_oid="$($ACME_OPENSSL_BIN ec -in "$keyfile" -noout -text 2>/dev/null | grep "^ASN1 OID:" | cut -d ":" -f 2 | tr -d " \r\n")"
+      crv_oid="$(${ACME_OPENSSL_BIN:-openssl} ec -in "$keyfile" -noout -text 2>/dev/null | grep "^ASN1 OID:" | cut -d ":" -f 2 | tr -d " \r\n")"
       _debug3 crv_oid "$crv_oid"
       case "${crv_oid}" in
         "prime256v1")
@@ -1391,15 +1392,15 @@ _calcjwk() {
       _debug3 crv "$crv"
     fi
 
-    pubi="$($ACME_OPENSSL_BIN ec -in "$keyfile" -noout -text 2>/dev/null | grep -n pub: | cut -d : -f 1)"
+    pubi="$(${ACME_OPENSSL_BIN:-openssl} ec -in "$keyfile" -noout -text 2>/dev/null | grep -n pub: | cut -d : -f 1)"
     pubi=$(_math "$pubi" + 1)
     _debug3 pubi "$pubi"
 
-    pubj="$($ACME_OPENSSL_BIN ec -in "$keyfile" -noout -text 2>/dev/null | grep -n "ASN1 OID:" | cut -d : -f 1)"
+    pubj="$(${ACME_OPENSSL_BIN:-openssl} ec -in "$keyfile" -noout -text 2>/dev/null | grep -n "ASN1 OID:" | cut -d : -f 1)"
     pubj=$(_math "$pubj" - 1)
     _debug3 pubj "$pubj"
 
-    pubtext="$($ACME_OPENSSL_BIN ec -in "$keyfile" -noout -text 2>/dev/null | sed -n "$pubi,${pubj}p" | tr -d " \n\r")"
+    pubtext="$(${ACME_OPENSSL_BIN:-openssl} ec -in "$keyfile" -noout -text 2>/dev/null | sed -n "$pubi,${pubj}p" | tr -d " \n\r")"
     _debug3 pubtext "$pubtext"
 
     xlen="$(printf "%s" "$pubtext" | tr -d ':' | wc -c)"
@@ -2017,7 +2018,7 @@ _starttlsserver() {
     return 1
   fi
 
-  __S_OPENSSL="$ACME_OPENSSL_BIN s_server -cert $TLS_CERT  -key $TLS_KEY "
+  __S_OPENSSL="${ACME_OPENSSL_BIN:-openssl} s_server -cert $TLS_CERT  -key $TLS_KEY "
   if [ "$opaddr" ]; then
     __S_OPENSSL="$__S_OPENSSL -accept $opaddr:$port"
   else
@@ -2258,16 +2259,16 @@ _initpath() {
   fi
 
   if [ -z "$TLS_CONF" ]; then
-    TLS_CONF="$DOMAIN_PATH/tls.valdation.conf"
+    TLS_CONF="$DOMAIN_PATH/tls.validation.conf"
   fi
   if [ -z "$TLS_CERT" ]; then
-    TLS_CERT="$DOMAIN_PATH/tls.valdation.cert"
+    TLS_CERT="$DOMAIN_PATH/tls.validation.cert"
   fi
   if [ -z "$TLS_KEY" ]; then
-    TLS_KEY="$DOMAIN_PATH/tls.valdation.key"
+    TLS_KEY="$DOMAIN_PATH/tls.validation.key"
   fi
   if [ -z "$TLS_CSR" ]; then
-    TLS_CSR="$DOMAIN_PATH/tls.valdation.csr"
+    TLS_CSR="$DOMAIN_PATH/tls.validation.csr"
   fi
 
 }
@@ -2385,7 +2386,7 @@ _setApache() {
   _debug "Backup apache config file" "$httpdconf"
   if ! cp "$httpdconf" "$APACHE_CONF_BACKUP_DIR/"; then
     _err "Can not backup apache config file, so abort. Don't worry, the apache config is not changed."
-    _err "This might be a bug of $PROJECT_NAME , pleae report issue: $PROJECT"
+    _err "This might be a bug of $PROJECT_NAME , please report issue: $PROJECT"
     return 1
   fi
   _info "JFYI, Config file $httpdconf is backuped to $APACHE_CONF_BACKUP_DIR/$httpdconfname"
@@ -2883,7 +2884,7 @@ _on_issue_err() {
         uri=$(echo "$ventry" | cut -d "$sep" -f 3)
         vtype=$(echo "$ventry" | cut -d "$sep" -f 4)
         _currentRoot=$(echo "$ventry" | cut -d "$sep" -f 5)
-        __trigger_validaton "$uri" "$keyauthorization"
+        __trigger_validation "$uri" "$keyauthorization"
       done
     )
   fi
@@ -3105,7 +3106,7 @@ __get_domain_new_authz() {
 }
 
 #uri keyAuthorization
-__trigger_validaton() {
+__trigger_validation() {
   _debug2 "tigger domain validation."
   _t_url="$1"
   _debug2 _t_url "$_t_url"
@@ -3120,6 +3121,10 @@ issue() {
     _usage "Usage: $PROJECT_ENTRY --issue  -d  a.com  -w /path/to/webroot/a.com/ "
     return 1
   fi
+  if [ -z "$1" ]; then
+    _usage "Please specify at least one validation method: '--webroot', '--standalone', '--apache', '--nginx' or '--dns' etc."
+    return 1
+  fi
   _web_roots="$1"
   _main_domain="$2"
   _alt_domains="$3"
@@ -3490,7 +3495,7 @@ issue() {
               _exec_err >/dev/null 2>&1
             fi
           else
-            _debug "not chaning owner/group of webroot"
+            _debug "not changing owner/group of webroot"
           fi
         fi
 
@@ -3531,7 +3536,7 @@ issue() {
       fi
     fi
 
-    if ! __trigger_validaton "$uri" "$keyauthorization"; then
+    if ! __trigger_validation "$uri" "$keyauthorization"; then
       _err "$d:Can not get challenge: $response"
       _clearupwebbroot "$_currentRoot" "$removelevel" "$token"
       _clearup
@@ -3635,6 +3640,7 @@ issue() {
 
   _rcert="$response"
   Le_LinkCert="$(grep -i '^Location.*$' "$HTTP_HEADER" | _head_n 1 | tr -d "\r\n" | cut -d " " -f 2)"
+  _debug "Le_LinkCert" "$Le_LinkCert"
   _savedomainconf "Le_LinkCert" "$Le_LinkCert"
 
   if [ "$Le_LinkCert" ]; then
@@ -3681,16 +3687,34 @@ issue() {
   if ! _contains "$Le_LinkIssuer" ":"; then
     Le_LinkIssuer="$API$Le_LinkIssuer"
   fi
-
+  _debug Le_LinkIssuer "$Le_LinkIssuer"
   _savedomainconf "Le_LinkIssuer" "$Le_LinkIssuer"
 
   if [ "$Le_LinkIssuer" ]; then
-    echo "$BEGIN_CERT" >"$CA_CERT_PATH"
-    _get "$Le_LinkIssuer" | _base64 "multiline" >>"$CA_CERT_PATH"
-    echo "$END_CERT" >>"$CA_CERT_PATH"
-    _info "The intermediate CA cert is in $(__green " $CA_CERT_PATH ")"
-    cat "$CA_CERT_PATH" >>"$CERT_FULLCHAIN_PATH"
-    _info "And the full chain certs is there: $(__green " $CERT_FULLCHAIN_PATH ")"
+    _link_issuer_retry=0
+    _MAX_ISSUER_RETRY=5
+    while [ "$_link_issuer_retry" -lt "$_MAX_ISSUER_RETRY" ]; do
+      _debug _link_issuer_retry "$_link_issuer_retry"
+      if _get "$Le_LinkIssuer" >"$CA_CERT_PATH.der"; then
+        echo "$BEGIN_CERT" >"$CA_CERT_PATH"
+        _base64 "multiline" <"$CA_CERT_PATH.der" >>"$CA_CERT_PATH"
+        echo "$END_CERT" >>"$CA_CERT_PATH"
+
+        _info "The intermediate CA cert is in $(__green " $CA_CERT_PATH ")"
+        cat "$CA_CERT_PATH" >>"$CERT_FULLCHAIN_PATH"
+        _info "And the full chain certs is there: $(__green " $CERT_FULLCHAIN_PATH ")"
+
+        rm -f "$CA_CERT_PATH.der"
+        break
+      fi
+      _link_issuer_retry=$(_math $_link_issuer_retry + 1)
+      _sleep "$_link_issuer_retry"
+    done
+    if [ "$_link_issuer_retry" = "$_MAX_ISSUER_RETRY" ]; then
+      _err "Max retry for issuer ca cert is reached."
+    fi
+  else
+    _debug "No Le_LinkIssuer header found."
   fi
 
   Le_CertCreateTime=$(_time)
@@ -4134,6 +4158,7 @@ _installcert() {
       export CERT_KEY_PATH
       export CA_CERT_PATH
       export CERT_FULLCHAIN_PATH
+      export Le_Domain
       cd "$DOMAIN_PATH" && eval "$_reload_cmd"
     ); then
       _info "$(__green "Reload success")"
@@ -4462,7 +4487,7 @@ _precheck() {
     fi
   fi
 
-  if ! _exists "$ACME_OPENSSL_BIN"; then
+  if ! _exists "${ACME_OPENSSL_BIN:-openssl}"; then
     _err "Please install openssl first. ACME_OPENSSL_BIN=$ACME_OPENSSL_BIN"
     _err "We need openssl to generate keys."
     return 1
@@ -4704,6 +4729,7 @@ _uninstallalias() {
 cron() {
   IN_CRON=1
   _initpath
+  _info "$(__green "===Starting cron===")"
   if [ "$AUTO_UPGRADE" = "1" ]; then
     export LE_WORKING_DIR
     (
@@ -4723,6 +4749,7 @@ cron() {
   renewAll
   _ret="$?"
   IN_CRON=""
+  _info "$(__green "===End cron===")"
   exit $_ret
 }
 
@@ -4806,13 +4833,13 @@ Parameters:
   --listraw                         Only used for '--list' command, list the certs in raw format.
   --stopRenewOnError, -se           Only valid for '--renew-all' command. Stop if one cert has error in renewal.
   --insecure                        Do not check the server certificate, in some devices, the api server's certificate may not be trusted.
-  --ca-bundle                       Specifices the path to the CA certificate bundle to verify api server's certificate.
+  --ca-bundle                       Specifies the path to the CA certificate bundle to verify api server's certificate.
   --ca-path                         Specifies directory containing CA certificates in PEM format, used by wget or curl.
   --nocron                          Only valid for '--install' command, which means: do not install the default cron job. In this case, the certs will not be renewed automatically.
   --ecc                             Specifies to use the ECC cert. Valid for '--install-cert', '--renew', '--revoke', '--toPkcs' and '--createCSR'
   --csr                             Specifies the input csr.
   --pre-hook                        Command to be run before obtaining any certificates.
-  --post-hook                       Command to be run after attempting to obtain/renew certificates. No matter the obain/renew is success or failed.
+  --post-hook                       Command to be run after attempting to obtain/renew certificates. No matter the obtain/renew is success or failed.
   --renew-hook                      Command to be run once for each successfully renewed certificate.
   --deploy-hook                     The hook file to deploy cert
   --ocsp-must-staple, --ocsp        Generate ocsp must Staple extension.
diff --git a/deploy/exim4.sh b/deploy/exim4.sh
index bf92b43..573f762 100644
--- a/deploy/exim4.sh
+++ b/deploy/exim4.sh
@@ -79,7 +79,7 @@ exim4_deploy() {
         _info "Restore conf success"
         eval "$_reload"
       else
-        _err "Opps, error restore exim4 conf, please report bug to us."
+        _err "Oops, error restore exim4 conf, please report bug to us."
       fi
       return 1
     fi
@@ -105,7 +105,7 @@ exim4_deploy() {
       _info "Restore conf success"
       eval "$_reload"
     else
-      _err "Opps, error restore exim4 conf, please report bug to us."
+      _err "Oops, error restore exim4 conf, please report bug to us."
     fi
     return 1
   fi
diff --git a/deploy/kong.sh b/deploy/kong.sh
index 3b9c5c7..e1873f3 100755
--- a/deploy/kong.sh
+++ b/deploy/kong.sh
@@ -43,7 +43,7 @@ kong_deploy() {
   #Save kong url if it's succesful (First run case)
   _saveaccountconf KONG_URL "$KONG_URL"
   #Generate DEIM
-  delim="-----MultipartDelimeter$(date "+%s%N")"
+  delim="-----MultipartDelimiter$(date "+%s%N")"
   nl="\015\012"
   #Set Header
   _H1="Content-Type: multipart/form-data; boundary=$delim"
@@ -72,7 +72,7 @@ kong_deploy() {
     response=$(_post "$content" "$KONG_URL/apis/$uuid/plugins/$ssl_uuid" "" "PATCH")
   fi
   if ! [ "$(echo "$response" | _egrep_o "ssl")" = "ssl" ]; then
-    _err "An error occured with cert upload. Check response:"
+    _err "An error occurred with cert upload. Check response:"
     _err "$response"
     return 1
   fi
diff --git a/deploy/vsftpd.sh b/deploy/vsftpd.sh
index 1c6410a..ed44e70 100644
--- a/deploy/vsftpd.sh
+++ b/deploy/vsftpd.sh
@@ -76,7 +76,7 @@ vsftpd_deploy() {
         _info "Restore conf success"
         eval "$_reload"
       else
-        _err "Opps, error restore vsftpd conf, please report bug to us."
+        _err "Oops, error restore vsftpd conf, please report bug to us."
       fi
       return 1
     fi
@@ -102,7 +102,7 @@ vsftpd_deploy() {
       _info "Restore conf success"
       eval "$_reload"
     else
-      _err "Opps, error restore vsftpd conf, please report bug to us."
+      _err "Oops, error restore vsftpd conf, please report bug to us."
     fi
     return 1
   fi
diff --git a/dnsapi/README.md b/dnsapi/README.md
index 4543d9b..9eb7791 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -302,7 +302,7 @@ acme.sh --issue --dns dns_freedns -d example.com -d www.example.com
 ```
 
 Note that you cannot use acme.sh automatic DNS validation for FreeDNS public domains or for a subdomain that
-you create under a FreeDNS public domain.  You must own the top level domain in order to automaitcally
+you create under a FreeDNS public domain.  You must own the top level domain in order to automatically
 validate with acme.sh at FreeDNS.
 
 ## 16. Use cyon.ch
diff --git a/dnsapi/dns_aws.sh b/dnsapi/dns_aws.sh
index d5d52de..21e8668 100755
--- a/dnsapi/dns_aws.sh
+++ b/dnsapi/dns_aws.sh
@@ -88,6 +88,19 @@ _get_root() {
     while true; do
       h=$(printf "%s" "$domain" | cut -d . -f $i-100)
       if [ -z "$h" ]; then
+        if _contains "$response" "<IsTruncated>true</IsTruncated>" && _contains "$response" "<NextMarker>"; then
+          _debug "IsTruncated"
+          _nextMarker="$(echo "$response" | _egrep_o "<NextMarker>.*</NextMarker>" | cut -d '>' -f 2 | cut -d '<' -f 1)"
+          _debug "NextMarker" "$_nextMarker"
+          if aws_rest GET "2013-04-01/hostedzone" "marker=$_nextMarker"; then
+            _debug "Truncated request OK"
+            i=2
+            p=1
+            continue
+          else
+            _err "Truncated request error."
+          fi
+        fi
         #not valid
         return 1
       fi
@@ -208,6 +221,9 @@ aws_rest() {
   _debug _H2 "$_H2"
 
   url="$AWS_URL/$ep"
+  if [ "$qsr" ]; then
+    url="$AWS_URL/$ep?$qsr"
+  fi
 
   if [ "$mtd" = "GET" ]; then
     response="$(_get "$url")"
diff --git a/dnsapi/dns_cyon.sh b/dnsapi/dns_cyon.sh
index c096d8b..d7ad712 100644
--- a/dnsapi/dns_cyon.sh
+++ b/dnsapi/dns_cyon.sh
@@ -50,7 +50,7 @@ _cyon_load_credentials() {
   fi
 
   if [ -z "${CY_Username}" ] || [ -z "${CY_Password}" ]; then
-    # Dummy entries to satify script checker.
+    # Dummy entries to satisfy script checker.
     CY_Username=""
     CY_Password=""
     CY_OTP_Secret=""
diff --git a/dnsapi/dns_dgon.sh b/dnsapi/dns_dgon.sh
index 9ceede4..7e1f1fe 100755
--- a/dnsapi/dns_dgon.sh
+++ b/dnsapi/dns_dgon.sh
@@ -158,7 +158,7 @@ _get_base_domain() {
   export _H2="Authorization: Bearer $DO_API_KEY"
   _debug DO_API_KEY "$DO_API_KEY"
   ## get URL for the list of domains
-  ## havent seen this request paginated, tested with 18 domains (more requres manual requests with DO)
+  ## havent seen this request paginated, tested with 18 domains (more requires manual requests with DO)
   DOMURL="https://api.digitalocean.com/v2/domains"
 
   ## get the domain list (DO gives basically a full XFER!)
diff --git a/dnsapi/dns_freedns.sh b/dnsapi/dns_freedns.sh
index f30c895..272a124 100755
--- a/dnsapi/dns_freedns.sh
+++ b/dnsapi/dns_freedns.sh
@@ -10,7 +10,7 @@
 #
 ########  Public functions #####################
 
-# Export FreeDNS userid and password in folowing variables...
+# Export FreeDNS userid and password in following variables...
 #  FREEDNS_User=username
 #  FREEDNS_Password=password
 # login cookie is saved in acme account config file so userid / pw
@@ -53,7 +53,7 @@ dns_freedns_add() {
   i="$(_math "$i" - 1)"
   sub_domain="$(echo "$fulldomain" | cut -d. -f -"$i")"
 
-  # Sometimes FreeDNS does not reurn the subdomain page but rather 
+  # Sometimes FreeDNS does not return the subdomain page but rather 
   # returns a page regarding becoming a premium member.  This usually
   # happens after a period of inactivity.  Immediately trying again
   # returns the correct subdomain page.  So, we will try twice to
@@ -65,7 +65,7 @@ dns_freedns_add() {
     htmlpage="$(_freedns_retrieve_subdomain_page "$FREEDNS_COOKIE")"
     if [ "$?" != "0" ]; then
       if [ "$using_cached_cookies" = "true" ]; then
-        _err "Has your FreeDNS username and password channged?  If so..."
+        _err "Has your FreeDNS username and password changed?  If so..."
         _err "Please export as FREEDNS_User / FREEDNS_Password and try again."
       fi
       return 1
@@ -112,7 +112,7 @@ dns_freedns_add() {
           # not produce accurate results as the value field is truncated
           # on this webpage. To get full value we would need to load
           # another page. However we don't really need this so long as
-          # there is only one TXT record for the acme chalenge subdomain.
+          # there is only one TXT record for the acme challenge subdomain.
           DNSvalue="$(echo "$line" | cut -d ',' -f 4 | sed 's/^[^&quot;]*&quot;//;s/&quot;.*//;s/<\/td>.*//')"
           if [ $found != 0 ]; then
             break
@@ -192,11 +192,11 @@ dns_freedns_rm() {
 
   # Need to read cookie from conf file again in case new value set
   # during login to FreeDNS when TXT record was created.
-  # acme.sh does not have a _readaccountconf() fuction
+  # acme.sh does not have a _readaccountconf() function
   FREEDNS_COOKIE="$(_read_conf "$ACCOUNT_CONF_PATH" "FREEDNS_COOKIE")"
   _debug "FreeDNS login cookies: $FREEDNS_COOKIE"
 
-  # Sometimes FreeDNS does not reurn the subdomain page but rather 
+  # Sometimes FreeDNS does not return the subdomain page but rather 
   # returns a page regarding becoming a premium member.  This usually
   # happens after a period of inactivity.  Immediately trying again
   # returns the correct subdomain page.  So, we will try twice to
@@ -302,12 +302,12 @@ _freedns_retrieve_subdomain_page() {
   export _H2="Accept-Language:en-US"
   url="https://freedns.afraid.org/subdomain/"
 
-  _debug "Retrieve subdmoain page from FreeDNS"
+  _debug "Retrieve subdomain page from FreeDNS"
 
   htmlpage="$(_get "$url")"
 
   if [ "$?" != "0" ]; then
-    _err "FreeDNS retrieve subdomins failed bad RC from _get"
+    _err "FreeDNS retrieve subdomains failed bad RC from _get"
     return 1
   elif [ -z "$htmlpage" ]; then
     _err "FreeDNS returned empty subdomain page"
@@ -341,7 +341,7 @@ _freedns_add_txt_record() {
     return 1
   elif _contains "$htmlpage" "security code was incorrect"; then
     _debug "$htmlpage"
-    _err "FreeDNS failed to add TXT record for $subdomain as FreeDNS requested seurity code"
+    _err "FreeDNS failed to add TXT record for $subdomain as FreeDNS requested security code"
     _err "Note that you cannot use automatic DNS validation for FreeDNS public domains"
     return 1
   fi
diff --git a/dnsapi/dns_gandi_livedns.sh b/dnsapi/dns_gandi_livedns.sh
index 41f4298..28b8f99 100755
--- a/dnsapi/dns_gandi_livedns.sh
+++ b/dnsapi/dns_gandi_livedns.sh
@@ -19,7 +19,7 @@ dns_gandi_livedns_add() {
   txtvalue=$2
 
   if [ -z "$GANDI_LIVEDNS_KEY" ]; then
-    _err "No API key specifed for Gandi LiveDNS."
+    _err "No API key specified for Gandi LiveDNS."
     _err "Create your key and export it as GANDI_LIVEDNS_KEY"
     return 1
   fi
diff --git a/dnsapi/dns_ovh.sh b/dnsapi/dns_ovh.sh
index faf5b42..71642bd 100755
--- a/dnsapi/dns_ovh.sh
+++ b/dnsapi/dns_ovh.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-#Applcation Key
+#Application Key
 #OVH_AK="sdfsdfsdfljlbjkljlkjsdfoiwje"
 #
 #Application Secret
diff --git a/dnsapi/dns_pdns.sh b/dnsapi/dns_pdns.sh
index ebc0294..7d807c8 100755
--- a/dnsapi/dns_pdns.sh
+++ b/dnsapi/dns_pdns.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-#PowerDNS Emdedded API
+#PowerDNS Embedded API
 #https://doc.powerdns.com/md/httpapi/api_spec/
 #
 #PDNS_Url="http://ns.example.com:8081"