diff --git a/.github/workflows/DNS.yml b/.github/workflows/DNS.yml
index f8e501ed..b00ef263 100644
--- a/.github/workflows/DNS.yml
+++ b/.github/workflows/DNS.yml
@@ -59,7 +59,7 @@ jobs:
       run: cd .. && git clone https://github.com/acmesh-official/acmetest.git  && cp -r acme.sh acmetest/
     - name: Set env file
       run: |
-        cd ../acmetest 
+        cd ../acmetest
         if [ "${{ secrets.TokenName1}}" ] ; then
           echo "${{ secrets.TokenName1}}=${{ secrets.TokenValue1}}" >> env.list
         fi
@@ -75,7 +75,7 @@ jobs:
         if [ "${{ secrets.TokenName5}}" ] ; then
           echo "${{ secrets.TokenName5}}=${{ secrets.TokenValue5}}" >> env.list
         fi
-        echo "TEST_DNS_NO_WILDCARD" >> env.list 
+        echo "TEST_DNS_NO_WILDCARD" >> env.list
         echo "TEST_DNS_SLEEP" >> env.list
     - name: Run acmetest
       run: cd ../acmetest && ./rundocker.sh  testall
@@ -226,8 +226,10 @@ jobs:
     - uses: vmactions/solaris-vm@v0.0.3
       with:
         envs: 'TEST_DNS TestingDomain TEST_DNS_NO_WILDCARD TEST_DNS_SLEEP CASE TEST_LOCAL DEBUG ${{ secrets.TokenName1}} ${{ secrets.TokenName2}} ${{ secrets.TokenName3}} ${{ secrets.TokenName4}} ${{ secrets.TokenName5}}'
-        prepare: pkgutil -y -i socat curl
+        prepare: pkgutil -y -i socat
         run: |
+          pkg set-mediator -v -I default@1.1 openssl
+          export PATH=/usr/gnu/bin:$PATH
           if [ "${{ secrets.TokenName1}}" ] ; then
             export ${{ secrets.TokenName1}}=${{ secrets.TokenValue1}}
           fi
@@ -245,5 +247,3 @@ jobs:
           fi
           cd ../acmetest
           ./letest.sh
-
-        
diff --git a/dnsapi/dns_oci.sh b/dnsapi/dns_oci.sh
new file mode 100644
index 00000000..eb006120
--- /dev/null
+++ b/dnsapi/dns_oci.sh
@@ -0,0 +1,324 @@
+#!/usr/bin/env sh
+#
+# Acme.sh DNS API plugin for Oracle Cloud Infrastructure
+# Copyright (c) 2021, Oracle and/or its affiliates
+#
+# The plugin will automatically use the default profile from an OCI SDK and CLI
+# configuration file, if it exists.
+#
+# Alternatively, set the following environment variables:
+# - OCI_CLI_TENANCY : OCID of tenancy that contains the target DNS zone
+# - OCI_CLI_USER    : OCID of user with permission to add/remove records from zones
+# - OCI_CLI_REGION  : Should point to the tenancy home region
+#
+# One of the following two variables is required:
+# - OCI_CLI_KEY_FILE: Path to private API signing key file in PEM format; or
+# - OCI_CLI_KEY     : The private API signing key in PEM format
+#
+# NOTE: using an encrypted private key that needs a passphrase is not supported.
+#
+
+dns_oci_add() {
+  _fqdn="$1"
+  _rdata="$2"
+
+  if _get_oci_zone; then
+
+    _add_record_body="{\"items\":[{\"domain\":\"${_sub_domain}.${_domain}\",\"rdata\":\"$_rdata\",\"rtype\":\"TXT\",\"ttl\": 30,\"operation\":\"ADD\"}]}"
+    response=$(_signed_request "PATCH" "/20180115/zones/${_domain}/records" "$_add_record_body")
+    if [ "$response" ]; then
+      _info "Success: added TXT record for ${_sub_domain}.${_domain}."
+    else
+      _err "Error: failed to add TXT record for ${_sub_domain}.${_domain}."
+      _err "Check that the user has permission to add records to this zone."
+      return 1
+    fi
+
+  else
+    return 1
+  fi
+
+}
+
+dns_oci_rm() {
+  _fqdn="$1"
+  _rdata="$2"
+
+  if _get_oci_zone; then
+
+    _remove_record_body="{\"items\":[{\"domain\":\"${_sub_domain}.${_domain}\",\"rdata\":\"$_rdata\",\"rtype\":\"TXT\",\"operation\":\"REMOVE\"}]}"
+    response=$(_signed_request "PATCH" "/20180115/zones/${_domain}/records" "$_remove_record_body")
+    if [ "$response" ]; then
+      _info "Success: removed TXT record for ${_sub_domain}.${_domain}."
+    else
+      _err "Error: failed to remove TXT record for ${_sub_domain}.${_domain}."
+      _err "Check that the user has permission to remove records from this zone."
+      return 1
+    fi
+
+  else
+    return 1
+  fi
+
+}
+
+####################  Private functions below ##################################
+_get_oci_zone() {
+
+  if ! _oci_config; then
+    return 1
+  fi
+
+  if ! _get_zone "$_fqdn"; then
+    _err "Error: DNS Zone not found for $_fqdn in $OCI_CLI_TENANCY"
+    return 1
+  fi
+
+  return 0
+
+}
+
+_oci_config() {
+
+  _DEFAULT_OCI_CLI_CONFIG_FILE="$HOME/.oci/config"
+  OCI_CLI_CONFIG_FILE="${OCI_CLI_CONFIG_FILE:-$(_readaccountconf_mutable OCI_CLI_CONFIG_FILE)}"
+
+  if [ -z "$OCI_CLI_CONFIG_FILE" ]; then
+    OCI_CLI_CONFIG_FILE="$_DEFAULT_OCI_CLI_CONFIG_FILE"
+  fi
+
+  if [ "$_DEFAULT_OCI_CLI_CONFIG_FILE" != "$OCI_CLI_CONFIG_FILE" ]; then
+    _saveaccountconf_mutable OCI_CLI_CONFIG_FILE "$OCI_CLI_CONFIG_FILE"
+  else
+    _clearaccountconf_mutable OCI_CLI_CONFIG_FILE
+  fi
+
+  _DEFAULT_OCI_CLI_PROFILE="DEFAULT"
+  OCI_CLI_PROFILE="${OCI_CLI_PROFILE:-$(_readaccountconf_mutable OCI_CLI_PROFILE)}"
+  if [ "$_DEFAULT_OCI_CLI_PROFILE" != "$OCI_CLI_PROFILE" ]; then
+    _saveaccountconf_mutable OCI_CLI_PROFILE "$OCI_CLI_PROFILE"
+  else
+    OCI_CLI_PROFILE="$_DEFAULT_OCI_CLI_PROFILE"
+    _clearaccountconf_mutable OCI_CLI_PROFILE
+  fi
+
+  OCI_CLI_TENANCY="${OCI_CLI_TENANCY:-$(_readaccountconf_mutable OCI_CLI_TENANCY)}"
+  if [ "$OCI_CLI_TENANCY" ]; then
+    _saveaccountconf_mutable OCI_CLI_TENANCY "$OCI_CLI_TENANCY"
+  elif [ -f "$OCI_CLI_CONFIG_FILE" ]; then
+    _debug "Reading OCI_CLI_TENANCY value from: $OCI_CLI_CONFIG_FILE"
+    OCI_CLI_TENANCY="${OCI_CLI_TENANCY:-$(_readini "$OCI_CLI_CONFIG_FILE" tenancy "$OCI_CLI_PROFILE")}"
+  fi
+
+  if [ -z "$OCI_CLI_TENANCY" ]; then
+    _err "Error: unable to read OCI_CLI_TENANCY from config file or environment variable."
+    return 1
+  fi
+
+  OCI_CLI_USER="${OCI_CLI_USER:-$(_readaccountconf_mutable OCI_CLI_USER)}"
+  if [ "$OCI_CLI_USER" ]; then
+    _saveaccountconf_mutable OCI_CLI_USER "$OCI_CLI_USER"
+  elif [ -f "$OCI_CLI_CONFIG_FILE" ]; then
+    _debug "Reading OCI_CLI_USER value from: $OCI_CLI_CONFIG_FILE"
+    OCI_CLI_USER="${OCI_CLI_USER:-$(_readini "$OCI_CLI_CONFIG_FILE" user "$OCI_CLI_PROFILE")}"
+  fi
+  if [ -z "$OCI_CLI_USER" ]; then
+    _err "Error: unable to read OCI_CLI_USER from config file or environment variable."
+    return 1
+  fi
+
+  OCI_CLI_REGION="${OCI_CLI_REGION:-$(_readaccountconf_mutable OCI_CLI_REGION)}"
+  if [ "$OCI_CLI_REGION" ]; then
+    _saveaccountconf_mutable OCI_CLI_REGION "$OCI_CLI_REGION"
+  elif [ -f "$OCI_CLI_CONFIG_FILE" ]; then
+    _debug "Reading OCI_CLI_REGION value from: $OCI_CLI_CONFIG_FILE"
+    OCI_CLI_REGION="${OCI_CLI_REGION:-$(_readini "$OCI_CLI_CONFIG_FILE" region "$OCI_CLI_PROFILE")}"
+  fi
+  if [ -z "$OCI_CLI_REGION" ]; then
+    _err "Error: unable to read OCI_CLI_REGION from config file or environment variable."
+    return 1
+  fi
+
+  OCI_CLI_KEY="${OCI_CLI_KEY:-$(_readaccountconf_mutable OCI_CLI_KEY)}"
+  if [ -z "$OCI_CLI_KEY" ]; then
+    _clearaccountconf_mutable OCI_CLI_KEY
+    OCI_CLI_KEY_FILE="${OCI_CLI_KEY_FILE:-$(_readini "$OCI_CLI_CONFIG_FILE" key_file "$OCI_CLI_PROFILE")}"
+    if [ "$OCI_CLI_KEY_FILE" ] && [ -f "$OCI_CLI_KEY_FILE" ]; then
+      _debug "Reading OCI_CLI_KEY value from: $OCI_CLI_KEY_FILE"
+      OCI_CLI_KEY=$(_base64 <"$OCI_CLI_KEY_FILE")
+      _saveaccountconf_mutable OCI_CLI_KEY "$OCI_CLI_KEY"
+    fi
+  else
+    _saveaccountconf_mutable OCI_CLI_KEY "$OCI_CLI_KEY"
+  fi
+
+  if [ -z "$OCI_CLI_KEY_FILE" ] && [ -z "$OCI_CLI_KEY" ]; then
+    _err "Error: unable to find key file path in OCI config file or OCI_CLI_KEY_FILE."
+    _err "Error: unable to load private API signing key from OCI_CLI_KEY."
+    return 1
+  fi
+
+  if [ "$(printf "%s\n" "$OCI_CLI_KEY" | wc -l)" -eq 1 ]; then
+    OCI_CLI_KEY=$(printf "%s" "$OCI_CLI_KEY" | _dbase64 multiline)
+  fi
+
+  return 0
+
+}
+
+# _get_zone(): retrieves the Zone name and OCID
+#
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+# _domain_ociid=ocid1.dns-zone.oc1..
+_get_zone() {
+  domain=$1
+  i=1
+  p=1
+
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      # not valid
+      return 1
+    fi
+
+    _domain_id=$(_signed_request "GET" "/20180115/zones/$h" "" "id")
+    if [ "$_domain_id" ]; then
+      _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+      _domain=$h
+
+      _debug _domain_id "$_domain_id"
+      _debug _sub_domain "$_sub_domain"
+      _debug _domain "$_domain"
+      return 0
+    fi
+
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+
+}
+
+#Usage: privatekey
+#Output MD5 fingerprint
+_fingerprint() {
+
+  pkey="$1"
+  if [ -z "$pkey" ]; then
+    _usage "Usage: _fingerprint privkey"
+    return 1
+  fi
+
+  printf "%s" "$pkey" | ${ACME_OPENSSL_BIN:-openssl} rsa -pubout -outform DER 2>/dev/null | ${ACME_OPENSSL_BIN:-openssl} md5 -c | cut -d = -f 2 | tr -d ' '
+
+}
+
+_signed_request() {
+
+  _sig_method="$1"
+  _sig_target="$2"
+  _sig_body="$3"
+  _return_field="$4"
+
+  _key_fingerprint=$(_fingerprint "$OCI_CLI_KEY")
+  _sig_host="dns.$OCI_CLI_REGION.oraclecloud.com"
+  _sig_keyId="$OCI_CLI_TENANCY/$OCI_CLI_USER/$_key_fingerprint"
+  _sig_alg="rsa-sha256"
+  _sig_version="1"
+  _sig_now="$(LC_ALL=C \date -u "+%a, %d %h %Y %H:%M:%S GMT")"
+
+  _request_method=$(printf %s "$_sig_method" | _lower_case)
+  _curl_method=$(printf %s "$_sig_method" | _upper_case)
+
+  _request_target="(request-target): $_request_method $_sig_target"
+  _date_header="date: $_sig_now"
+  _host_header="host: $_sig_host"
+
+  _string_to_sign="$_request_target\n$_date_header\n$_host_header"
+  _sig_headers="(request-target) date host"
+
+  if [ "$_sig_body" ]; then
+    _secure_debug3 _sig_body "$_sig_body"
+    _sig_body_sha256="x-content-sha256: $(printf %s "$_sig_body" | _digest sha256)"
+    _sig_body_type="content-type: application/json"
+    _sig_body_length="content-length: ${#_sig_body}"
+    _string_to_sign="$_string_to_sign\n$_sig_body_sha256\n$_sig_body_type\n$_sig_body_length"
+    _sig_headers="$_sig_headers x-content-sha256 content-type content-length"
+  fi
+
+  _tmp_file=$(_mktemp)
+  if [ -f "$_tmp_file" ]; then
+    printf '%s' "$OCI_CLI_KEY" >"$_tmp_file"
+    _signature=$(printf '%b' "$_string_to_sign" | _sign "$_tmp_file" sha256 | tr -d '\r\n')
+    rm -f "$_tmp_file"
+  fi
+
+  _signed_header="Authorization: Signature version=\"$_sig_version\",keyId=\"$_sig_keyId\",algorithm=\"$_sig_alg\",headers=\"$_sig_headers\",signature=\"$_signature\""
+  _secure_debug3 _signed_header "$_signed_header"
+
+  if [ "$_curl_method" = "GET" ]; then
+    export _H1="$_date_header"
+    export _H2="$_signed_header"
+    _response="$(_get "https://${_sig_host}${_sig_target}")"
+  elif [ "$_curl_method" = "PATCH" ]; then
+    export _H1="$_date_header"
+    export _H2="$_sig_body_sha256"
+    export _H3="$_sig_body_type"
+    export _H4="$_sig_body_length"
+    export _H5="$_signed_header"
+    _response="$(_post "$_sig_body" "https://${_sig_host}${_sig_target}" "" "PATCH")"
+  else
+    _err "Unable to process method: $_curl_method."
+  fi
+
+  _ret="$?"
+  if [ "$_return_field" ]; then
+    _response="$(echo "$_response" | sed 's/\\\"//g'))"
+    _return=$(echo "${_response}" | _egrep_o "\"$_return_field\"\\s*:\\s*\"[^\"]*\"" | _head_n 1 | cut -d : -f 2 | tr -d "\"")
+  else
+    _return="$_response"
+  fi
+
+  printf "%s" "$_return"
+  return $_ret
+
+}
+
+# file  key  [section]
+_readini() {
+  _file="$1"
+  _key="$2"
+  _section="${3:-DEFAULT}"
+
+  _start_n=$(grep -n '\['"$_section"']' "$_file" | cut -d : -f 1)
+  _debug3 _start_n "$_start_n"
+  if [ -z "$_start_n" ]; then
+    _err "Can not find section: $_section"
+    return 1
+  fi
+
+  _start_nn=$(_math "$_start_n" + 1)
+  _debug3 "_start_nn" "$_start_nn"
+
+  _left="$(sed -n "${_start_nn},99999p" "$_file")"
+  _debug3 _left "$_left"
+  _end="$(echo "$_left" | grep -n "^\[" | _head_n 1)"
+  _debug3 "_end" "$_end"
+  if [ "$_end" ]; then
+    _end_n=$(echo "$_end" | cut -d : -f 1)
+    _debug3 "_end_n" "$_end_n"
+    _seg_n=$(echo "$_left" | sed -n "1,${_end_n}p")
+  else
+    _seg_n="$_left"
+  fi
+
+  _debug3 "_seg_n" "$_seg_n"
+  _lineini="$(echo "$_seg_n" | grep "^ *$_key *= *")"
+  _inivalue="$(printf "%b" "$(eval "echo $_lineini | sed \"s/^ *${_key} *= *//g\"")")"
+  _debug2 _inivalue "$_inivalue"
+  echo "$_inivalue"
+
+}