diff --git a/JWT/deploy/check_and_recover.sh b/JWT/deploy/check_and_recover.sh
index 46a069a..e845c95 100755
--- a/JWT/deploy/check_and_recover.sh
+++ b/JWT/deploy/check_and_recover.sh
@@ -2,14 +2,32 @@
 
 # 서버의 상태를 확인하여 실행시 실패했다면 복구한다.
 
-script_dir=$(dirname "$0")
-"${script_dir}/check.sh"
-exit_code=$?
+pid=$(sudo lsof -t -i :8080)
+
+if [ -z "$pid" ]; then
+  echo "Error: server is not running."
 
-if [ $exit_code -ne 0 ]; then
   echo 
   echo "========= ERROR LOG =========="
   cat out.log
-  "${script_dir}/recover.sh"
-  exit 1
+  echo "========== LOG END ==========="
+  echo 
+
+  script_dir=$(dirname "$0")
+
+  if [ -f "server.bak.jar" ]; then
+    sudo mv server.bak.jar server.jar
+    echo "backup jar recovered."
+
+    nohup java -jar server.jar --spring.profiles.active=dev 2>&1 > out.log &
+    echo "backup server no running on port 8080"
+    exit 0
+  fi
+
+  echo "recovory fail: no backup jar file found"
+  exit 2
+
 fi
+
+echo "PID '${pid}' is running on port 8080."
+
diff --git a/JWT/deploy/startup.sh b/JWT/deploy/startup.sh
index fd791de..fe7193b 100755
--- a/JWT/deploy/startup.sh
+++ b/JWT/deploy/startup.sh
@@ -9,7 +9,7 @@ if [ -n "$pid" ]; then
   exit 1
 fi
 
-nohup java -jar $1 --spring.profiles.active=dev 2>&1 > out.log &
+nohup java -jar server.jar --spring.profiles.active=dev 2>&1 > out.log &
 echo "server started at port 8080."
 echo "stdout & stderr directed to 'out.log'"