diff --git a/run.sh b/run.sh
index b8c2bce..df544de 100755
--- a/run.sh
+++ b/run.sh
@@ -41,7 +41,7 @@ usage() {
 
 Jrules='{"rules":[]}'
 
-TEMP=$(getopt -o "u:k:r:c:j:di" --long "lgp:,lgr:,lgt:,lsp:,lst:,ltr:,ltrx:,ltt:,lttx:,lwp:,lwt:,mtt:,mwp:,mwt:,ttt:,twp:,twt:,user:,hook:,request-domain:,cert-home:,ip-block:,domain-block:,cn-block,ng-server:,ng-proxy:,st-server:,st-map:,json:,stdin,debug" -n "$0" -- $@)
+TEMP=$(getopt -o u:k:r:c:j:di --long lgp:,lgr:,lgt:,lsp:,lst:,ltr:,ltrx:,ltt:,lttx:,lwp:,lwt:,mtt:,mwp:,mwt:,ttt:,twp:,twt:,user:,hook:,request-domain:,cert-home:,ip-block:,domain-block:,cn-block,ng-server:,ng-proxy:,st-server:,st-map:,json:,stdin,debug -n "$0" -- "$@")
 if [ $? != 0 ] ; then usage; exit 1 ; fi
 
 eval set -- "$TEMP"
@@ -148,7 +148,7 @@ if [ -n "${HOOKURL}" ]; then
 fi
 
 # Acquiring Letsencrypt certs for each request-domain
-if [ -n "${CERTDOMAIN}" ]; then
+if [ "${#CERTDOMAIN[@]}" -gt 0 ]; then
     for DOMAIN in "${CERTDOMAIN[@]}"
     do
         TRY=0
@@ -171,7 +171,7 @@ fi
 xopt="certhome=$CERTHOME"
 for uopt in "${UOPT[@]}"; do xopt="$xopt,$uopt"; done
 
-if [ -z "${SVCMD}" ]; then
+if [ "${#SVCMD[@]}" -eq 0 ]; then
     echo -e "No Xray service creation found. Quit.\n"
     usage; exit 1
 fi
@@ -231,7 +231,7 @@ done
 if [ -n "${DEBUG}" ]; then loglevel="debug"; else loglevel="warning"; fi
 Jroot=$(echo $Jroot| jq --arg loglevel "${loglevel}" '.log.loglevel |= $loglevel')
 
-if [ -n "${INJECT[@]}" ]; then
+if [ "${#INJECT[@]}" -gt 0 ]; then
     for JSON_IN in "${INJECT[@]}"
     do
         Jmerge=$(jq -nc "${JSON_IN}")
diff --git a/server-lgp.sh b/server-lgp.sh
index 68ff38a..364266d 100755
--- a/server-lgp.sh
+++ b/server-lgp.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         d|domain)
             domain="${kv[1]}"
@@ -18,6 +18,9 @@ do
         f|fallback)
             fallback+=("${kv[1]}")
             ;;
+        flow)
+            flow="${kv[1]}"
+            ;;
         p|port)
             port="${kv[1]}"
             ;;
@@ -32,6 +35,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${domain}" ]; then
     >&2 echo -e "Error: Domain undefined.\n"
diff --git a/server-lgr.sh b/server-lgr.sh
index d7f9ec3..dbaa122 100755
--- a/server-lgr.sh
+++ b/server-lgr.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         d|dest)
             dest="${kv[1]}"
@@ -50,6 +50,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${dest}" ]; then
     >&2 echo -e "Error: Fake Destination undefined.\n"
diff --git a/server-lgt.sh b/server-lgt.sh
index 3adb020..58c22cf 100755
--- a/server-lgt.sh
+++ b/server-lgt.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         c|certhome)
             certhome="${kv[1]}"
@@ -41,6 +41,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${certhome}" ]; then
     >&2 echo -e "Error: Certhome undefined.\n"
diff --git a/server-lsp.sh b/server-lsp.sh
index 9d706a7..ab0d48b 100755
--- a/server-lsp.sh
+++ b/server-lsp.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         d|domain)
             domain="${kv[1]}"
@@ -18,6 +18,9 @@ do
         f|fallback)
             fallback+=("${kv[1]}")
             ;;
+        flow)
+            flow="${kv[1]}"
+            ;;
         p|port)
             port="${kv[1]}"
             ;;
@@ -32,6 +35,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${domain}" ]; then
     >&2 echo -e "Error: Domain undefined.\n"
diff --git a/server-lst.sh b/server-lst.sh
index aa5c3d0..e9382ba 100755
--- a/server-lst.sh
+++ b/server-lst.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         c|certhome)
             certhome="${kv[1]}"
@@ -41,6 +41,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${certhome}" ]; then
     >&2 echo -e "Error: Certhome undefined.\n"
diff --git a/server-ltr.sh b/server-ltr.sh
index 11713a1..9f4e9be 100755
--- a/server-ltr.sh
+++ b/server-ltr.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         d|dest)
             dest="${kv[1]}"
@@ -47,6 +47,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${dest}" ]; then
     >&2 echo -e "Error: Fake Destination undefined.\n"
diff --git a/server-ltt.sh b/server-ltt.sh
index deafbb4..9e13c1c 100755
--- a/server-ltt.sh
+++ b/server-ltt.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         c|certhome)
             certhome="${kv[1]}"
@@ -38,6 +38,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${certhome}" ]; then
     >&2 echo -e "Error: Certhome undefined.\n"
diff --git a/server-lwp.sh b/server-lwp.sh
index 89dc4ef..cfb181e 100755
--- a/server-lwp.sh
+++ b/server-lwp.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         d|domain)
             domain="${kv[1]}"
@@ -18,6 +18,9 @@ do
         f|fallback)
             fallback+=("${kv[1]}")
             ;;
+        flow)
+            flow="${kv[1]}"
+            ;;
         p|port)
             port="${kv[1]}"
             ;;
@@ -32,6 +35,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${domain}" ]; then
     >&2 echo -e "Error: Domain undefined.\n"
diff --git a/server-lwt.sh b/server-lwt.sh
index dd45059..3245a99 100755
--- a/server-lwt.sh
+++ b/server-lwt.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         c|certhome)
             certhome="${kv[1]}"
@@ -41,6 +41,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${certhome}" ]; then
     >&2 echo -e "Error: Certhome undefined.\n"
diff --git a/server-mtt.sh b/server-mtt.sh
index a990450..98b9778 100755
--- a/server-mtt.sh
+++ b/server-mtt.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         c|certhome)
             certhome="${kv[1]}"
@@ -38,6 +38,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${certhome}" ]; then
     >&2 echo -e "Error: Certhome undefined.\n"
diff --git a/server-mwp.sh b/server-mwp.sh
index 2bf3c36..376fe33 100755
--- a/server-mwp.sh
+++ b/server-mwp.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         d|domain)
             domain="${kv[1]}"
@@ -18,6 +18,9 @@ do
         f|fallback)
             fallback+=("${kv[1]}")
             ;;
+        flow)
+            flow="${kv[1]}"
+            ;;
         p|port)
             port="${kv[1]}"
             ;;
@@ -32,6 +35,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${domain}" ]; then
     >&2 echo -e "Error: Domain undefined.\n"
diff --git a/server-mwt.sh b/server-mwt.sh
index d5beabd..2f5d54a 100755
--- a/server-mwt.sh
+++ b/server-mwt.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         c|certhome)
             certhome="${kv[1]}"
@@ -41,6 +41,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${certhome}" ]; then
     >&2 echo -e "Error: Certhome undefined.\n"
diff --git a/server-nginx.sh b/server-nginx.sh
index b865607..51e6faa 100755
--- a/server-nginx.sh
+++ b/server-nginx.sh
@@ -12,7 +12,7 @@ usage() {
     >&2 echo "    --st-server   [p=443],[proxy_pass]"
 }
 
-TEMP=$(getopt -o "m:n:p:s:x:" --long "ng-server:,ng-proxy:,st-server:,st-map:" -n "$0" -- $@)
+TEMP=$(getopt -o m:n:p:s:x: --long ng-server:,ng-proxy:,st-server:,st-map: -n "$0" -- "$@")
 if [ $? != 0 ] ; then usage; exit 1 ; fi
 
 eval set -- "$TEMP"
@@ -49,13 +49,13 @@ while true ; do
     esac
 done
 
-if [ -z "${NGSVR}" ] && [ -z "${STPORT}" ]; then
+if [ "${#NGSVR[@]}" -eq 0 ] && [ -z "${STSVR}" ]; then
     >&2 echo -e "No Stream/Server defined. Quit.\n";
     usage; exit 1;
 fi
 
 # Running as root to enable transparent stream.
-# sed -i 's/^user \+nginx;$/user  root;/g' /etc/nginx/nginx.conf
+# sed -i 's/^user \+nginx;$/user  root;/g' $NGCONF
 
 cd /etc/nginx/conf.d/
 if [ -f /etc/nginx/conf.d/default.conf ]; then
@@ -63,9 +63,9 @@ if [ -f /etc/nginx/conf.d/default.conf ]; then
 fi
 
 # Remove all lines generated previously after #STREAM_TAG tag.
-sed -i '/\#STREAM_TAG/q' /etc/nginx/nginx.conf
+sed -i '/\#STREAM_TAG/q' $NGCONF
 # Remove #STREAM_TAG tag
-sed -i '/\#STREAM_TAG/d' /etc/nginx/nginx.conf
+sed -i '/\#STREAM_TAG/d' $NGCONF
 
 # Generate Nginx Stream server configuration.
 if [ -n "${STSVR}" ]; then
@@ -87,7 +87,7 @@ options=($(echo $STSVR |tr ',' ' '))
     if ! [ "${STPORT}" -eq "${STPORT}" ] 2>/dev/null; then >&2 echo "Stream port number must be numeric"; exit 1; fi
 
     # Attaching the stream configuration template to the tail of nginx.conf
-    cat ${STREAM_TPL} >> /etc/nginx/nginx.conf
+    cat ${STREAM_TPL} >> $NGCONF
     for stmap in "${STMAP[@]}"
     do
         options=($(echo $stmap |tr ',' ' '))
@@ -112,18 +112,18 @@ options=($(echo $STSVR |tr ',' ' '))
     done
 
     # Adding map.conf down to #XMAP_TAG tag
-    sed -i '/#XMAP_TAG/r /tmp/stmap.conf' /etc/nginx/nginx.conf
+    sed -i '/#XMAP_TAG/r /tmp/stmap.conf' $NGCONF
     # Adding ups.conf down to #XUPSTREAM_TAG tag
-    sed -i '/#XUPSTREAM_TAG/r /tmp/stups.conf' /etc/nginx/nginx.conf
-    sed -i "s/STPORT/${STPORT}/g" /etc/nginx/nginx.conf
+    sed -i '/#XUPSTREAM_TAG/r /tmp/stups.conf' $NGCONF
+    sed -i "s/STPORT/${STPORT}/g" $NGCONF
     # Adding "proxy_protocol=on" down to #STPROXY_PASS_TAG tag
     if [ -n "${STPROXY_PASS}" ]; then
         echo "        proxy_protocol on;" >/tmp/stproxy.conf
-        sed -i '/#STPROXY_PASS_TAG/r /tmp/stproxy.conf' /etc/nginx/nginx.conf
+        sed -i '/#STPROXY_PASS_TAG/r /tmp/stproxy.conf' $NGCONF
     fi
     rm -rf /tmp/stmap.conf; rm -rf /tmp/stups.conf; rm -rf /tmp/stproxy.conf
-    echo "Generated /etc/nginx/nginx.conf ====>"
-    cat /etc/nginx/nginx.conf
+    echo "Generated $NGCONF ====>"
+    cat $NGCONF
 fi
 
 # Generating Nginx site server configurations.
@@ -155,7 +155,7 @@ do
     done
 
     if [ -z "${certhome}" ]; then echo -e "Error: Nginx certhome undefined.\n"; usage; exit 1; fi
-    if [ -z "${SITEDOMAINS}" ]; then echo -e "Error: Nginx site domain undefined.\n"; usage; exit 1; fi
+    if [ "${#SITEDOMAINS[@]}" -eq 0 ]; then echo -e "Error: Nginx site domain undefined.\n"; usage; exit 1; fi
     if [ -z "${port}" ]; then port=443; fi
     if ! [ "${port}" -eq "${port}" ] 2>/dev/null; then >&2 echo -e "Port number must be numeric. \n"; exit 1; fi
 
@@ -223,7 +223,7 @@ do
     done
 
     if [ -z "${xhost}" ]; then xhost="127.0.0.1"; fi
-    if [ -z "${XDOMAINS}" ]; then XDOMAINS=("${ALLDOMAINS[@]}"); fi
+    if [ "${#XDOMAINS[@]}" -eq 0 ]; then XDOMAINS=("${ALLDOMAINS[@]}"); fi
     if [ -z "${xnetwork}" ]; then echo "Missing network: $ngproxy"; usage; exit 1; fi
     if [ -z "${xlocation}" ]; then echo "Missing location: $ngproxy"; usage; exit 1; fi
     if [ -z "${xport}" ]; then echo "Missing port: $ngproxy"; usage; exit 1; fi
diff --git a/server-ttt.sh b/server-ttt.sh
index 75c7703..897c264 100755
--- a/server-ttt.sh
+++ b/server-ttt.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user|u=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         c|certhome)
             certhome="${kv[1]}"
@@ -38,6 +38,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${certhome}" ]; then
     >&2 echo -e "Error: Certhome undefined.\n"
diff --git a/server-twp.sh b/server-twp.sh
index 4eb24c9..ac523fb 100755
--- a/server-twp.sh
+++ b/server-twp.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         d|domain)
             domain="${kv[1]}"
@@ -18,6 +18,9 @@ do
         f|fallback)
             fallback+=("${kv[1]}")
             ;;
+        flow)
+            flow="${kv[1]}"
+            ;;
         p|port)
             port="${kv[1]}"
             ;;
@@ -32,6 +35,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${domain}" ]; then
     >&2 echo -e "Error: Domain undefined.\n"
diff --git a/server-twt.sh b/server-twt.sh
index 0206143..1565d6a 100755
--- a/server-twt.sh
+++ b/server-twt.sh
@@ -7,10 +7,10 @@ usage() {
     >&2 echo -e "User format: user=<uid>[:level:email]"
 }
 
-options=($(echo $1 |tr ',' ' '))
+IFS=',' read -a options <<< "$1"
 for option in "${options[@]}"
 do
-    kv=($(echo $option |tr '=' ' '))
+    IFS='=' read -a kv <<< "$option"
     case "${kv[0]}" in
         c|certhome)
             certhome="${kv[1]}"
@@ -41,6 +41,7 @@ do
             ;;
     esac
 done
+unset IFS
 
 if [ -z "${certhome}" ]; then
     >&2 echo -e "Error: Certhome undefined.\n"