diff --git a/.gitignore b/.gitignore
index 1483f90..3e10754 100644
--- a/.gitignore
+++ b/.gitignore
@@ -43,4 +43,4 @@ out/
 .metadata/
 
 settings.gradle
-
+application-*.yml
diff --git a/src/main/java/com/acorn/AcornPrivateApplication.java b/src/main/java/com/acorn/ForklogBackendApplication.java
similarity index 92%
rename from src/main/java/com/acorn/AcornPrivateApplication.java
rename to src/main/java/com/acorn/ForklogBackendApplication.java
index b94437b..bd12c3e 100644
--- a/src/main/java/com/acorn/AcornPrivateApplication.java
+++ b/src/main/java/com/acorn/ForklogBackendApplication.java
@@ -20,10 +20,10 @@
 @SpringBootApplication
 @EnableFeignClients(basePackages = "com.acorn.api.openfeign")
 @EnableSpringDataWebSupport(pageSerializationMode = PageSerializationMode.VIA_DTO)
-public class AcornPrivateApplication {
+public class ForklogBackendApplication {
 
 	public static void main(String[] args) {
-		SpringApplication.run(AcornPrivateApplication.class, args);
+		SpringApplication.run(ForklogBackendApplication.class, args);
 	}
 
 }
diff --git a/src/main/java/com/acorn/api/openfeign/KakaoOpenFeignConfig.java b/src/main/java/com/acorn/api/openfeign/KakaoOpenFeignConfig.java
index eb9b86a..b315f26 100644
--- a/src/main/java/com/acorn/api/openfeign/KakaoOpenFeignConfig.java
+++ b/src/main/java/com/acorn/api/openfeign/KakaoOpenFeignConfig.java
@@ -14,6 +14,9 @@ public class KakaoOpenFeignConfig {
     @Value("${kakao.rest_api_key}")
     private String kakaoApiKey;
 
+    @Value("${feign.logger.level}")
+    private Level feignLoggerLevel;
+
     @Bean
     public RequestInterceptor kakaoRequestInterceptor() {
         return requestTemplate -> {
@@ -23,13 +26,14 @@ public RequestInterceptor kakaoRequestInterceptor() {
     
     /**
      * Feign Logging을 위한 설정.
+     * feign.logger.level 환경 변수 값을 이용함.
      * 
      * REST API 키가 이클립스 콘솔창에 노출되니 정말 필요할 때만 사용!
      * @author JeroCaller (JJH)
      */
     @Bean
     public Logger.Level feignLoggerLevel() {
-    	return Level.FULL;
+    	return feignLoggerLevel;
     }
     
 }
diff --git a/src/main/java/com/acorn/config/SecurityConfig.java b/src/main/java/com/acorn/config/SecurityConfig.java
index 41a1135..680c182 100644
--- a/src/main/java/com/acorn/config/SecurityConfig.java
+++ b/src/main/java/com/acorn/config/SecurityConfig.java
@@ -5,6 +5,7 @@
 import java.nio.file.Paths;
 import java.util.List;
 
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.authentication.AuthenticationManager;
@@ -37,6 +38,9 @@
 @RequiredArgsConstructor
 public class SecurityConfig implements WebMvcConfigurer {
 
+	@Value("${file.upload-dir}")
+	private String uploadBaseDir;
+
 	@Bean
 	public SecurityFilterChain securityFilterChain(HttpSecurity httpSecurity, JwtAuthenticationFilter jwtAuthenticationFilter) throws Exception {
 		// CORS 설정과 CSRF 비활성화, 세션 관리 정책 설정
@@ -84,7 +88,8 @@ public PasswordEncoder PasswordEncoder() {
 	public void addResourceHandlers(ResourceHandlerRegistry registry) {
 		//정적리소스(이미지,css,js,데이터 경로) 추가 설정
 		//지금은 업로드 경로 설정이 목적
-		Path uploadDir = Paths.get("./uploads");
+		//Path uploadDir = Paths.get("./uploads");
+		Path uploadDir = Paths.get(uploadBaseDir);
 		//uploads 절대 경로 얻기
 		String uploadPath = uploadDir.toFile().getAbsolutePath();
 		//	/uploads/test.png라는 url이 들어오면 uploads디렉토리 내의 test.png를 반환
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
deleted file mode 100644
index 1107109..0000000
--- a/src/main/resources/application.properties
+++ /dev/null
@@ -1,61 +0,0 @@
-spring.application.name=AcornPrivate
-
-# private 설정 파일 별도 분리
-spring.profiles.active=private
-
-# 지연로딩 설정
-spring.jpa.open-in-view=false
-
-server.port=8080
-
-# jpa
-spring.jpa.properties.hibernate.show_sql=true
-spring.jpa.properties.hibernate.format_sql=false
-spring.jpa.properties.hibernate.use_sql_comments=true
-spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MariaDBDialect
-
-# feign configuration
-spring.cloud.openfeign.httpclient.connection-timeout=5000
-spring.cloud.openfeign.httpclient.ok-http.read-timeout=5000
-
-# security logging
-logging.level.org.springframework.security=DEBUG
-logging.level.org.springframework.web.cors=DEBUG
-
-# upload directory
-file.upload-dir=./uploads
-spring.servlet.multipart.enabled=true
-spring.servlet.multipart.max-file-size=10MB
-spring.servlet.multipart.max-request-size=10MB
-
-# mariadb server connect (cloudtype)
-spring.datasource.driver-class-name=org.mariadb.jdbc.Driver
-spring.datasource.url=${DB_URL}
-spring.datasource.username=${DB_USERNAME}
-spring.datasource.password=${DB_PASSWORD}
-
-# JWT SecretKey
-secret-key=${JWT_SECRET_KEY}
-
-# kakao API
-kakao.rest_api_key=${KAKAO_REST_API_KEY}
-kakao.redirect_uri=${KAKAO_REDIRECT_URI}
-
-# naver API
-naver.search.clientId=${NAVER_CLIENT_ID}
-naver.search.clientSecret=${NAVER_CLIENT_SECRET}
-
-# GMail
-spring.mail.host=smtp.gmail.com
-spring.mail.port=587
-spring.mail.properties.mail.deug=true
-spring.mail.properties.mail.smtp.auth=true
-spring.mail.properties.mail.smtp.timeout=50000
-spring.mail.properties.mail.smtp.starttls.enable=true
-spring.mail.properties.mail.smtp.starttls.required=true
-
-spring.mail.username=${MAIL_USERNAME}
-spring.mail.password=${MAIL_PASSWORD}
-
-# react project path mapping
-spring.web.resources.add-mappings=true
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
new file mode 100644
index 0000000..71e5686
--- /dev/null
+++ b/src/main/resources/application.yml
@@ -0,0 +1,61 @@
+spring:
+  application:
+    name: forklog_backend
+
+  profiles:
+    include: secret
+    # dev, prod
+    active: dev
+
+  jpa:
+    # 지연로딩 설정
+    open-in-view: false
+    properties:
+      hibernate:
+        show_sql: true
+        format_sql: false
+        use_sql_comments: true
+        dialect: org.hibernate.dialect.MariaDBDialect
+
+  # feign configuration
+  cloud:
+    openfeign:
+      httpclient:
+        connection-timeout: 5000
+        ok-http:
+          read-timeout: 5000
+
+  # file upload configuration
+  servlet:
+    multipart:
+      enabled: true
+      max-file-size: 10MB
+      max-request-size: 10MB
+
+  web:
+    resources:
+      # react project path mapping
+      add-mappings: true
+
+server:
+  port: 8080
+
+# security logging
+logging:
+  level:
+    org:
+      springframework:
+        security: DEBUG
+        web:
+          cors: DEBUG
+
+    # feign log
+    com:
+      acorn:
+        api:
+          openfeign:
+            KakaoRestOpenFeign: DEBUG
+
+# upload directory
+file:
+  upload-dir: ./uploads
\ No newline at end of file
diff --git "a/uploads/184_\354\232\260\354\243\274\352\260\225\354\225\204\354\247\200.png" "b/uploads/184_\354\232\260\354\243\274\352\260\225\354\225\204\354\247\200.png"
new file mode 100644
index 0000000..5869e9f
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new file mode 100644
index 0000000..5869e9f
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