@[toc]
一、背景
亲测可用,之前搜索了很多博客，啥样的都有，就是不介绍报错以及配置用处，根本不懂照抄那些配置是干啥的，稀里糊涂的按照博客搭完也跑不起来，因此记录这个。
项目背景：公司项目当前采用 http 协议+shiro+mysql 的登录认证方式，而现在想支持 ldap 协议认证登录然后能够访问自己公司的项目网站。
举例说明：假设我们公司有自己的门户网站，现在我们收购了一家公司，他们数据库采用 ldap 存储用户数据，那么为了他们账户能登陆我们公司项目所以需要集成，而不是再把他们的账户重新在 mysql 再创建一遍，万一人家有 1W 个账户呢，不累死了且也不现实啊。
需要安装 openldap+kerberos，且 ldap 和 kerberos 安装在同一台服务器上，当前版本如下：
另外介绍下我的 Spring 各个版本：
Spring Security：4.2.3.RELEASE
Spring Version：4.3.9.RELEASE
SpringBoot Version：1.4.7.RELEASE
注意点1：我之所以选这么旧的版本，是因为我最后要在自己项目集成，我们项目就是上面版本附近的，所以不能选太高版本，这点请注意各版本之间的兼容性问题。详情可看这篇博客介绍兼容版本：https://zhuanlan.zhihu.com/p/652895555
注意点2：如果里面的某些配置不知道在哪或者不知道干啥的，可以看我的前面的博客，详细介绍了安装配置等，可以大致了解参数。
目前网上相关文章很少，而且好多博客都是未认证就发布的所以一堆问题，跑不起来，如下是我参考的博客
二、报错
完整错误
Cannot locate KDCjavax.security.auth.login.LoginException: Cannot locate KDC at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:808) at com.sun.security.auth.module.Krb5LoginModule.login(Krb5LoginModule.java:618) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at javax.security.auth.login.LoginContext.invoke(LoginContext.java:755) at javax.security.auth.login.LoginContext.access$000(LoginContext.java:195) at javax.security.auth.login.LoginContext$4.run(LoginContext.java:682) at javax.security.auth.login.LoginContext$4.run(LoginContext.java:680) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:680) at javax.security.auth.login.LoginContext.login(LoginContext.java:587) at com.example.ldaptest2.controller.TestController.authenticateUserByPassword(TestController.java:77) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:121) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:100) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)Caused by: KrbException: Cannot locate KDC at sun.security.krb5.Config.getKDCList(Config.java:1189) at sun.security.krb5.KdcComm.send(KdcComm.java:218) at sun.security.krb5.KdcComm.send(KdcComm.java:200) at sun.security.krb5.KrbAsReqBuilder.send(KrbAsReqBuilder.java:343) at sun.security.krb5.KrbAsReqBuilder.action(KrbAsReqBuilder.java:447) at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:770) ... 100 moreCaused by: KrbException: Generic error (description in e-text) (60) - Unable to locate KDC for realm NODE3.COM at sun.security.krb5.Config.getKDCFromDNS(Config.java:1286) at sun.security.krb5.Config.getKDCList(Config.java:1162)
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错误代码
//用户+密码认证@Testpublic void authenticateUserByPassword() { try { // 创建 LoginContext 对象，并为其提供自定义 Configuration LoginContext lc = new LoginContext("KrbLogin", null, new MyCallbackHandler(), new CustomConfigurationByPassword());
// 进行 Kerberos 认证 lc.login(); // 获取 Subject Subject subject = lc.getSubject();// logger.info("subject:{}", subject); // 在这里可以使用 subject 来执行进一步的操作，如访问受限资源 // 登出 lc.logout(); } catch (LoginException e) { // 处理登录异常 e.printStackTrace(); }}
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场景描述：windows 本地跑项目，我的 ldap+kerberos 安装在 38.162 环境，我想本地 windows 上连接 38.162 服务器进行 kerberos 用户认证。
错误原因：没有注入配置文件，人家代码凭啥能精准找到 38.162 服务器上，你得导入配置文件啊，因为你的项目中只有 ldap 服务的一些配置，压根 kerberos 的相关配置，且代码中只引入 CustomConfigurationByPassword，里面压根没有指定 IP 啥的地方。
解决方案：设置：System.setProperty("java.security.krb5.conf", "/xxx/krb5.conf");
正确代码：
//用户+密码认证@Testpublic void authenticateUserByPassword() { try { System.setProperty("java.security.krb5.conf", "C:\\Users\\211145187\\Desktop\\fsdownload\\krb5.conf"); // 创建 LoginContext 对象，并为其提供自定义 Configuration LoginContext lc = new LoginContext("KrbLogin", null, new MyCallbackHandler(), new CustomConfigurationByPassword());
// 进行 Kerberos 认证 lc.login(); // 获取 Subject Subject subject = lc.getSubject();// logger.info("subject:{}", subject); // 在这里可以使用 subject 来执行进一步的操作，如访问受限资源 // 登出 lc.logout(); } catch (LoginException e) { // 处理登录异常 e.printStackTrace(); }}
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思路讲解：首先把配置文件 krb5.conf 下载下来，然后当你代码注入 System.setProperty 配置文件的时候，项目就会读取配置文件内容，其中的 kdc 就配置了 10.110.38.162，所以项目代码就知道连接到哪里进行 kerberos 认证了。
krb5.conf
# Configuration snippets may be placed in this directory as wellincludedir /etc/krb5.conf.d/
[logging] default = FILE:/var/log/krb5libs.log kdc = FILE:/var/log/krb5kdc.log admin_server = FILE:/var/log/kadmind.log
[libdefaults] dns_lookup_realm = false ticket_lifetime = 24h #renew_lifetime = 7d forwardable = true rdns = false pkinit_anchors = FILE:/etc/pki/tls/certs/ca-bundle.crt default_realm = NODE3.COM# default_ccache_name = KEYRING:persistent:%{uid}
[realms] NODE3.COM = { # kdc = kdc.node.com # admin_server = kdc.node.com kdc = 10.110.38.162 admin_server = 10.110.38.162 ldap_servers = ldap://10.110.38.162:389
# kdc = node3.com:88 # admin_server = node3.com:749 # default_domain = NODE3.COM }
[domain_realm] .node3.com = NODE3.COM node3.com = NODE3.COM
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本人其他相关文章链接
1.Centos7.9安装openldap2.Centos7.9安装kerberos3.Openldap集成Kerberos4.Centos7.9安装phpldapadmin5.java连接ldap实现用户查询功能6.java连接kerberos用户认证7.javax.security.auth.login.LoginException: Unable to obtain password from user8.javax.security.auth.login.LoginException: null (68)9.javax.security.auth.login.LoginException: Message stream modified (41)10.javax.security.auth.login.LoginException: Checksum failed11.javax.security.auth.login.LoginException: No CallbackHandler available to garner authentication info12.javax.security.auth.login.LoginException: Cannot locate KDC13.javax.security.auth.login.LoginException: Receive timed out14.java: 无法访问org.springframework.context.ConfigurableApplicationContext15.LDAP: error code 34 - invalid DN16.LDAP: error code 32 - No Such Object17.java: 无法访问org.springframework.ldap.core.LdapTemplate
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