diff --git a/VERSION b/VERSION
index 4bac418..aa31e71 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.0.2
\ No newline at end of file
+4.0.3
\ No newline at end of file
diff --git a/gravity-sync b/gravity-sync
index 440d63f..20f7e06 100755
--- a/gravity-sync
+++ b/gravity-sync
@@ -4,7 +4,7 @@ GS_RUN_START=$SECONDS
 
 # GRAVITY SYNC BY VMSTAN #####################
 PROGRAM='Gravity Sync'
-GS_VERSION='4.0.2'
+GS_VERSION='4.0.3'
 
 # For documentation or the changelog/updates visit https://github.com/vmstan/gravity-sync
 # Requires Pi-Hole 5.x or higher already be installed, for help visit https://pi-hole.net
@@ -59,12 +59,12 @@ GS_BACKUP_EXT='gsb'                             # replace in gravity-sync.conf t
 
 # GS Folder/File Locations
 GS_FILEPATH='/usr/local/bin/gravity-sync'			
-GS_ETC_PATH="/etc/gravity-sync"		            # replace in gravity-sync.conf to overwrite
-GS_CONFIG_FILE='gravity-sync.conf' 	            # replace in gravity-sync.conf to overwrite
-GS_SYNCING_LOG='gs-sync.log' 		            # replace in gravity-sync.conf to overwrite
-GS_GRAVITY_FI_MD5_LOG='gs-gravity.md5'          # replace in gravity-sync.conf to overwrite
-GS_CUSTOM_DNS_MD5_LOG='gs-clist.md5'            # replace in gravity-sync.conf to overwrite
-GS_CNAME_CONF_MD5_LOG='gs-cname.md5'            # replace in gravity-sync.conf to overwrite
+GS_ETC_PATH="/etc/gravity-sync"		                                # replace in gravity-sync.conf to overwrite
+GS_CONFIG_FILE='gravity-sync.conf' 	                                # replace in gravity-sync.conf to overwrite
+GS_SYNCING_LOG='gs-sync.log' 		                                # replace in gravity-sync.conf to overwrite
+GS_GRAVITY_FI_MD5_LOG='gs-gravity.md5'                              # replace in gravity-sync.conf to overwrite
+GS_CUSTOM_DNS_MD5_LOG='gs-clist.md5'                                # replace in gravity-sync.conf to overwrite
+GS_CNAME_CONF_MD5_LOG='05-pihole-custom-cname.conf.md5'             # replace in gravity-sync.conf to overwrite
 
 # SSH Customization
 GS_SSH_PORT='22' 						        # replace in gravity-sync.conf to overwrite
@@ -1507,6 +1507,12 @@ function config_generate {
     echo_need
     read -r INPUT_REMOTE_HOST
 
+        if [ "${INPUT_REMOTE_HOST}" == "" ]; then
+            MESSAGE="Remote host cannot be blank!"
+            echo_fail
+            exit_no_change
+        fi
+
     MESSAGE="${UI_CONFIG_SAVING} ${INPUT_REMOTE_HOST} host to ${GS_CONFIG_FILE}"
     echo_stat
     sudo sed -i "/REMOTE_HOST=''/c\REMOTE_HOST='${INPUT_REMOTE_HOST}'" ${GS_ETC_PATH}/${GS_CONFIG_FILE}
@@ -1518,6 +1524,12 @@ function config_generate {
     MESSAGE="User"
     echo_need
     read -r INPUT_REMOTE_USER
+
+        if [ "${INPUT_REMOTE_USER}" == "" ]; then
+            MESSAGE="User name cannot be blank!"
+            echo_fail
+            exit_no_change
+        fi
     
     MESSAGE="${UI_CONFIG_SAVING} ${INPUT_REMOTE_USER}@${INPUT_REMOTE_HOST} to ${GS_CONFIG_FILE}"
     echo_stat
@@ -1631,6 +1643,12 @@ function advanced_config_generate {
         echo_need
         read -r INPUT_LOCAL_DOCKER_CONTAINER
 
+            if [ "${INPUT_LOCAL_DOCKER_CONTAINER}" == "" ]; then
+                MESSAGE="Container name cannot be blank!"
+                echo_fail
+                exit_no_change
+            fi
+
         MESSAGE="${UI_CONFIG_SAVING} ${UI_CONFIG_LOCAL} ${UI_CONFIG_CONTAINER_NAME} to ${GS_CONFIG_FILE}"
         echo_stat
         sudo sed -i "/# LOCAL_DOCKER_CONTAINER=''/c\LOCAL_DOCKER_CONTAINER='${INPUT_LOCAL_DOCKER_CONTAINER}'" ${GS_ETC_PATH}/${GS_CONFIG_FILE}
@@ -1698,6 +1716,12 @@ function advanced_config_generate {
         MESSAGE="ex, 'pihole'"
         echo_need
         read -r INPUT_REMOTE_DOCKER_CONTAINER
+
+            if [ "${INPUT_REMOTE_DOCKER_CONTAINER}" == "" ]; then
+                MESSAGE="Container name cannot be blank!"
+                echo_fail
+                exit_no_change
+            fi
         
         MESSAGE="${UI_CONFIG_SAVING} remote host ${UI_CONFIG_CONTAINER_NAME} to ${GS_CONFIG_FILE}"
         echo_stat
diff --git a/gravity-sync.sh b/gravity-sync.sh
index cb39ef7..c80d54d 100755
--- a/gravity-sync.sh
+++ b/gravity-sync.sh
@@ -12,7 +12,7 @@ LOCAL_FOLDR=$(dirname $GS_FILEPATH)
 GS_ETC_PATH="/etc/gravity-sync"
 GS_GRAVITY_FI_MD5_LOG='gs-gravity.md5'
 GS_CUSTOM_DNS_MD5_LOG='gs-clist.md5'
-GS_CNAME_CONF_MD5_LOG='gs-cname.md5'
+GS_CNAME_CONF_MD5_LOG='05-pihole-custom-cname.conf.md5'
 
 OS_DAEMON_PATH='/etc/systemd/system'
 
@@ -166,19 +166,6 @@ function install_new_gravity {
 function upgrade_to_4 {
     MESSAGE="Migrating Previous Configuration"
     echo_info
-    
-    CURRENTUSER=$(whoami)
-    MESSAGE="Transferring SSH keys"
-    echo_stat
-    sudo cp $HOME/.ssh/id_rsa /etc/gravity-sync/gravity-sync.rsa
-    sudo cp $HOME/.ssh/id_rsa.pub /etc/gravity-sync/gravity-sync.rsa.pub
-    error_validate
-
-    MESSAGE="Setting SSH key owner"
-    echo_stat
-    sudo chown ${CURRENTUSER}:${CURRENTUSER} /etc/gravity-sync/gravity-sync.rsa
-    sudo chown ${CURRENTUSER}:${CURRENTUSER} /etc/gravity-sync/gravity-sync.rsa.pub
-    error_validate
 
     REMOTE_HOST=''
     REMOTE_USER=''
@@ -193,6 +180,7 @@ function upgrade_to_4 {
     ROCKER_CON=''
 
     SSH_PORT=''
+    SSH_PKIF=''
 
     MESSAGE="Reviewing old configuration file settings"
     echo_stat
@@ -213,6 +201,24 @@ function upgrade_to_4 {
     LOCAL_DOCKER_CONTAINER=${DOCKER_CON}
     REMOTE_DOCKER_CONTAINER=${ROCKER_CON}
 
+    CURRENTUSER=$(whoami)
+    MESSAGE="Transferring SSH keys"
+    echo_stat
+        if [ "${SSH_PKIF}" == "" ]; then
+            sudo cp $HOME/.ssh/id_rsa /etc/gravity-sync/gravity-sync.rsa
+            sudo cp $HOME/.ssh/id_rsa.pub /etc/gravity-sync/gravity-sync.rsa.pub
+        else
+            sudo cp ${SSH_PKIF} /etc/gravity-sync/gravity-sync.rsa
+            sudo cp ${SSH_PKIF}.pub /etc/gravity-sync/gravity-sync.rsa.pub
+        fi
+    error_validate
+
+    MESSAGE="Setting SSH key owner"
+    echo_stat
+    sudo chown ${CURRENTUSER}:${CURRENTUSER} /etc/gravity-sync/gravity-sync.rsa
+    sudo chown ${CURRENTUSER}:${CURRENTUSER} /etc/gravity-sync/gravity-sync.rsa.pub
+    error_validate
+
     MESSAGE="Migrating remote host settings"
     echo_stat
     sudo sed -i "/REMOTE_HOST=''/c\REMOTE_HOST='${REMOTE_HOST}'" /etc/gravity-sync/gravity-sync.conf