1. error code 53
===========================================================================
問題：創建新用戶時出現數據后端異常
在 WebSphere Portal Express 中，您可以設置密碼的最短和最長長度。如果設置的密碼長度與 LDAP 服務器的策略不相同，則在創建用戶時您可能會看到以下異常：
EJPSG0015E: Data Backend Problem com.ibm.websphere.wmm.exception.WMMSystemException:
The following Naming Exception occurred during processing:
"javax.naming.OperationNotSupportedException: [LDAP: error code 53 - 0000052D:
SvcErr: DSID-031A0FBC, problem 5003 (WILL_NOT_PERFORM), data 0
]; remaining name 'cn=see1anna,cn=users,dc=wps510,dc=rtp,dc=raleigh,dc=ibm,dc=com';
resolved object com.sun.jndi.ldap.LdapCtx@7075b1b4".
原因：這是由於“密碼不能滿足密碼策略的要求”導致
解決方案：
1. 打開域安全策略-安全設置-賬戶策略-密碼策略-密碼必須符合復雜性要求。定義這個策略設置為:已禁用。/ 密碼長度最小值：定義這個策略設置為0。
2. 打開域控制器安全策略-安全設置-賬戶策略-密碼策略-密碼必須符合復雜性要求。定義這個策略設置為：已禁用。/ 密碼長度最小值：定義這個策略設置為0。
3. 最后運行刷新組策略命令為：gpupdate /force
===========================================================================
2. Need to specify class name
===========================================================================
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
原因：LdapContext在處理完上個環節被close(),LdapContext=null;
解決方案：不close;
3. error code 50
===========================================================================
javax.naming.NoPermissionException: [LDAP: error code 50 - 00002098: SecErr: DSID-03150A45, problem 4003 (INSUFF_ACCESS_RIGHTS), data 0
4. error code 68
===========================================================================
javax.naming.NameAlreadyBoundException: [LDAP: error code 68 - 00000524: UpdErr: DSID-031A0F4F, problem 6005 (ENTRY_EXISTS), data 0
原因：創建的用戶已經存在了
7. No trusted certificate
===========================================================================
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: No trusted certificate found
1.cas機器A，A上a,b,c服務運行良好
2.website 位於B機器，cas可以截獲請求，跳轉javax.net.ssl.SSLHandshakeException
將A上生生成的客戶端密鑰，導入B
A運行
sudo keytool -genkey -alias tomcat -keyalg RSA -keypass changeit -storepass changeit -keystore server.keystore -validity 3600
$ keytool -export -trustcacerts -alias tomcat -file server.cer -keystore server.keystore -storepass changeit
$ sudo keytool -import -trustcacerts -alias tomcat -file server.cer -keystore $JAVA_HOME/jre/lib/security/cacerts -storepass changeit
B運行最后一句即可
建立信任關系，客戶，服務密鑰，客戶多處
8. error code 1
===========================================================================
javax.naming.NamingException: [LDAP: error code 1 - 00000000: LdapErr: DSID-0C090AE2, comment: In order to perform this operation a successful bind must be completed on the connection., data 0, vece
原因：新增域用戶的時候，ctx沒有綁定管理員用戶
解決方法：ctx.addToEnvironment(Context.SECURITY_PRINCIPAL, adminUser + "@" + ldapProperty.getDomain());
ctx.addToEnvironment(Context.SECURITY_CREDENTIALS, adminPwd);
9. error code 50
==========================================================================
javax.naming.NoPermissionException: [LDAP: error code 50 - 00000005: SecErr: DSID-03151E04, problem 4003 (INSUFF_ACCESS_RIGHTS)
原因：新建域用戶時候，ctx綁定到一個普通用戶（該用戶沒有新建用戶的權限）
解決方法：使用管理員用戶進行綁定：
ctx.addToEnvironment(Context.SECURITY_PRINCIPAL, adminUser + "@" + ldapProperty.getDomain());
ctx.addToEnvironment(Context.SECURITY_CREDENTIALS, adminPwd);
10. error code 19
==========================================================================
javax.naming.directory.InvalidAttributeValueException: [LDAP: error code 19 - 0000052D: AtrErr: DSID-03190F00, #1:
0: 0000052D: DSID-03190F00, problem 1005 (CONSTRAINT_ATT_TYPE)
原因：這個最大的可能是不滿足域安全策略：如密碼復雜性、密碼最短使用期限、強制密碼歷史。即長度、包含的字符、多久可以修改密碼、是否可以使用歷史密碼等。
11. LDAP: error code 50
==========================================================================
javax.naming.NoPermissionException: [LDAP: error code 50 - 00000005: SecErr: DSID-031A0F44, problem 4003 (INSUFF_ACCESS_RIGHTS)
原因:這個是最初代碼使用的replace操作，這個在AD里對應的是密碼重設（普通用戶默認沒有這個權限，管理員可以操作），另外remove操作時提供的舊密碼錯誤也可能報這個異常
12. RSA premaster secret error
==========================================================================
javax.naming.CommunicationException: simple bind failed: 172.18.20.4:636 [Root exception is javax.net.ssl.SSLKeyException: RSA premaster secret error]
原因：Tomcat 配置的JDK與添加證書的的JDK不一致。如：證書存放路徑為C:/Java/jdk1.6.0_10/jre/lib/cacerts 而Tomcat 配置的JDK為C:/Java/jre6 ，使得兩者路徑不一致，SSL驗證的時候，找不到證書
13.No trusted certificate found
==========================================================================
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: No trusted certificate found
原因：信任證書庫文件路徑不正確
解決方法：將正確工程中 /WEB-INF/classes目錄下
14. error code 49
==========================================================================
javax.naming.AuthenticationException: [LDAP: error code 49 - 80090308: LdapErr: DSID-0C090334, comment: AcceptSecurityContext error, data 52e, vece
原因：用戶名或密碼錯誤