diff --git a/docker/config/application.tmpl b/docker/config/application.tmpl
index c05c497c17c8eec0ca8644003994b1a85f87297c..0b8ee95bc4deffadc7c4243403a7ec94cdbabce2 100644
--- a/docker/config/application.tmpl
+++ b/docker/config/application.tmpl
@@ -30,6 +30,7 @@ hbp:
     clientSecret: {{ .Env.CLIENT_SECRET }}
     accessTokenUri: {{ default .Env.TOKEN_URI "https://services.humanbrainproject.eu/oidc/token" }}
     userAuthorizationUri: {{ default .Env.AUTH_URI "https://services.humanbrainproject.eu/oidc/authorize" }}
+    logoutUri: {{ default .Env.LOGOUT_URI }}
     tokenName: access_token
     authenticationScheme: query
     clientAuthenticationScheme: form
diff --git a/src/main/java/eu/hbp/mip/configuration/SecurityConfiguration.java b/src/main/java/eu/hbp/mip/configuration/SecurityConfiguration.java
index 9310be3de5104705f8d6bccf8310e7778bfc77ff..675d5a2e0cd0de1ae5167394bc8c598c3feb17fc 100644
--- a/src/main/java/eu/hbp/mip/configuration/SecurityConfiguration.java
+++ b/src/main/java/eu/hbp/mip/configuration/SecurityConfiguration.java
@@ -53,6 +53,18 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
+//newlyadded for logout
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.MediaType;
+import org.springframework.http.RequestEntity;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.client.RestTemplate;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import java.net.URI;
+
+
 // See https://spring.io/guides/tutorials/spring-boot-oauth2/ for reference about configuring OAuth2 login
 // also http://cscarioni.blogspot.ch/2013/04/pro-spring-security-and-oauth-2.html
 
@@ -76,6 +88,12 @@ public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
     */
    @Value("#{'${frontend.loginUrl:/login/hbp}'}")
    private String loginUrl;
+ 
+	/**
+    * Absolute URL to redirect to when logout is required
+    */
+   @Value("#{'${hbp.client.logoutUri:http://88.197.53.10:8095/auth/realms/Demo/protocol/openid-connect/logout}'}")
+   private String logoutUri;
 
    /**
     * Absolute URL to redirect to after successful login
@@ -94,6 +112,8 @@ public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
     */
    @Value("#{'${hbp.resource.revokeTokenUri:https://services.humanbrainproject.eu/oidc/revoke}'}")
    private String revokeTokenURI;
+   
+   
 
 //    @Autowired
 //    private HttpServletRequest request;
@@ -114,7 +134,7 @@ public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
 				   //.anyRequest().authenticated()
 				   .anyRequest().hasRole("Researcher")
                    .and().exceptionHandling().authenticationEntryPoint(new CustomLoginUrlAuthenticationEntryPoint(loginUrl))
-                   .and().logout().addLogoutHandler(new CustomLogoutHandler()).logoutSuccessUrl(redirectAfterLogoutUrl)
+                   .and().logout().addLogoutHandler(authLogoutHandler()).logoutSuccessUrl(redirectAfterLogoutUrl)
                    .and().logout().permitAll()
                    .and().csrf().ignoringAntMatchers("/logout").csrfTokenRepository(csrfTokenRepository())
                    .and().addFilterAfter(csrfHeaderFilter(), CsrfFilter.class)
@@ -260,5 +280,35 @@ public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
             return String.join(",", authorities);
         }
     }
+	
+	
+	private LogoutHandler authLogoutHandler() {
+		return (request, response, authentication) -> {
+			logout();
+		};
+    }
+	
+	
+	public void logout() {
+		// POSTするリクエストパラメーターを作成
+		UserActionLogging.LogAction("refresh token ", this.oauth2ClientContext.getAccessToken().getRefreshToken().getValue());
+		RestTemplate restTemplate = new RestTemplate();
+		MultiValueMap<String, String> formParams = new LinkedMultiValueMap<>();
+		formParams.add("client_id", hbp().getClientId());
+	//        formParams.add("client_secret", registration.getClientSecret());
+		formParams.add("refresh_token", this.oauth2ClientContext.getAccessToken().getRefreshToken().getValue());
+		// リクエストヘッダーを作成
+		HttpHeaders httpHeaders = new HttpHeaders();
+		httpHeaders.add(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_FORM_URLENCODED_VALUE);
+		// リクエストを作成
+		RequestEntity<MultiValueMap<String, String>> requestEntity =
+				new RequestEntity<>(formParams, httpHeaders, HttpMethod.POST,
+						//URI.create("http://88.197.53.10:8095/auth/realms/Demo/protocol/openid-connect/logout")); //todo make this parameter
+						URI.create(logoutUri)); //todo make this parameter
+		// POSTリクエスト送信（ログアウト実行）
+
+		ResponseEntity<String> responseEntity = restTemplate.exchange(requestEntity, String.class);
+    }
+	
    
 }
diff --git a/src/main/resources/logback.xml b/src/main/resources/logback.xml
index 3843fbca8ed514ad3269299ec31302e2d5825f50..d1875652cc7ba1694fefb4b757e97f770c30cb18 100644
--- a/src/main/resources/logback.xml
+++ b/src/main/resources/logback.xml
@@ -3,11 +3,13 @@
         <file>logs/log1.txt</file>
         <append>true</append>
         <encoder>
-            <pattern>%msg%n</pattern>
+            <pattern>%d{yyyy-MM-dd} %msg%n</pattern>
         </encoder>
     </appender>
 
-
+	<logger name="org.springframework">
+		<appender-ref ref="FILE1" />
+	</logger>
     <logger name="eu.hbp.mip.utils" level="INFO" additivity="false">
         <appender-ref ref="FILE1" />
     </logger>