diff --git a/deploy/strongswan.sh b/deploy/strongswan.sh
index 3d5f1b34..14567d17 100644
--- a/deploy/strongswan.sh
+++ b/deploy/strongswan.sh
@@ -10,46 +10,89 @@
 
 #domain keyfile certfile cafile fullchain
 strongswan_deploy() {
-  _cdomain="$1"
-  _ckey="$2"
-  _ccert="$3"
-  _cca="$4"
-  _cfullchain="$5"
-
+  _cdomain="${1}"
+  _ckey="${2}"
+  _ccert="${3}"
+  _cca="${4}"
+  _cfullchain="${5}"
   _info "Using strongswan"
-
-  if [ -x /usr/sbin/ipsec ]; then
-    _ipsec=/usr/sbin/ipsec
-  elif [ -x /usr/sbin/strongswan ]; then
-    _ipsec=/usr/sbin/strongswan
-  elif [ -x /usr/local/sbin/ipsec ]; then
-    _ipsec=/usr/local/sbin/ipsec
-  else
+  if _exists ipsec; then
+    _ipsec=ipsec
+  elif _exists strongswan; then
+    _ipsec=strongswan
+  fi
+  if _exists swanctl; then
+    _swanctl=swanctl
+  fi
+  # For legacy stroke mode
+  if [ -n "${_ipsec}" ]; then
+    _info "${_ipsec} command detected"
+    _confdir=$(${_ipsec} --confdir)
+    if [ -z "${_confdir}" ]; then
+      _err "no strongswan --confdir is detected"
+      return 1
+    fi
+    _info _confdir "${_confdir}"
+    __deploy_cert "$@" "stroke" "${_confdir}"
+    ${_ipsec} reload
+  fi
+  # For modern vici mode
+  if [ -n "${_swanctl}" ]; then
+    _info "${_swanctl} command detected"
+    for _dir in /usr/local/etc/swanctl /etc/swanctl /etc/strongswan/swanctl; do
+      if [ -d ${_dir} ]; then
+        _confdir=${_dir}
+        _info _confdir "${_confdir}"
+        break
+      fi
+    done
+    if [ -z "${_confdir}" ]; then
+      _err "no swanctl config dir is found"
+      return 1
+    fi
+    __deploy_cert "$@" "vici" "${_confdir}"
+    ${_swanctl} --load-creds
+  fi
+  if [ -z "${_swanctl}" ] && [ -z "${_ipsec}" ]; then
     _err "no strongswan or ipsec command is detected"
+    _err "no swanctl is detected"
     return 1
   fi
+}
 
-  _info _ipsec "$_ipsec"
+####################  Private functions below ##################################
 
-  _confdir=$($_ipsec --confdir)
-  if [ $? -ne 0 ] || [ -z "$_confdir" ]; then
-    _err "no strongswan --confdir is detected"
+__deploy_cert() {
+  _cdomain="${1}"
+  _ckey="${2}"
+  _ccert="${3}"
+  _cca="${4}"
+  _cfullchain="${5}"
+  _swan_mode="${6}"
+  _confdir="${7}"
+  _debug _cdomain "${_cdomain}"
+  _debug _ckey "${_ckey}"
+  _debug _ccert "${_ccert}"
+  _debug _cca "${_cca}"
+  _debug _cfullchain "${_cfullchain}"
+  _debug _swan_mode "${_swan_mode}"
+  _debug _confdir "${_confdir}"
+  if [ "${_swan_mode}" = "vici" ]; then
+    _dir_private="private"
+    _dir_cert="x509"
+    _dir_ca="x509ca"
+  elif [ "${_swan_mode}" = "stroke" ]; then
+    _dir_private="ipsec.d/private"
+    _dir_cert="ipsec.d/certs"
+    _dir_ca="ipsec.d/cacerts"
+  else
+    _err "unknown StrongSwan mode ${_swan_mode}"
     return 1
   fi
-
-  _info _confdir "$_confdir"
-
-  _debug _cdomain "$_cdomain"
-  _debug _ckey "$_ckey"
-  _debug _ccert "$_ccert"
-  _debug _cca "$_cca"
-  _debug _cfullchain "$_cfullchain"
-
-  cat "$_ckey" >"${_confdir}/ipsec.d/private/$(basename "$_ckey")"
-  cat "$_ccert" >"${_confdir}/ipsec.d/certs/$(basename "$_ccert")"
-  cat "$_cca" >"${_confdir}/ipsec.d/cacerts/$(basename "$_cca")"
-  cat "$_cfullchain" >"${_confdir}/ipsec.d/cacerts/$(basename "$_cfullchain")"
-
-  $_ipsec reload
-
+  cat "${_ckey}" >"${_confdir}/${_dir_private}/$(basename "${_ckey}")"
+  cat "${_ccert}" >"${_confdir}/${_dir_cert}/$(basename "${_ccert}")"
+  cat "${_cca}" >"${_confdir}/${_dir_ca}/$(basename "${_cca}")"
+  if [ "${_swan_mode}" = "stroke" ]; then
+    cat "${_cfullchain}" >"${_confdir}/${_dir_ca}/$(basename "${_cfullchain}")"
+  fi
 }