我在使用 StartTLS 和自签名证书将 Ambari 与 LDAP 服务器同步时遇到问题。Ambari 服务器和 ldap 服务器都在同一台计算机上运行。我已按照文档但我不确定我是否处于 LDAPS 配置情况。
如果我遵循 SSL 配置案例并将自签名证书导入 /etc/ambari-server/keys/ldaps-keystore.jks，那么当我执行 ambari-server sync-ldap --all 时，我会从 ambari 服务器收到以下错误
AmbariLdapDataPopulator:736 - Reloading properties ldapSyncEventResourceProvider:460 - Caught exception running LDAP sync.
org.springframework.ldap.CommunicationException: simple bind failed:
host.example.net:389; nested exception is javax.naming.CommunicationException: simple bind failed: host.example.net:389
[Root exception is javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake]
at org.springframework.ldap.support.LdapUtils.convertLdapException(LdapUtils.java:108)
at org.springframework.ldap.core.support.AbstractContextSource.createContext(AbstractContextSource.java:356)
at org.springframework.ldap.core.support.AbstractContextSource.doGetContext(AbstractContextSource.java:140)
at org.springframework.ldap.core.support.AbstractContextSource.getReadOnlyContext(AbstractContextSource.java:159)
at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:357)
at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:309)
at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:642)
at org.apache.ambari.server.security.ldap.AmbariLdapDataPopulator.getFilteredLdapUsers(AmbariLdapDataPopulator.java:667)
at org.apache.ambari.server.security.ldap.AmbariLdapDataPopulator.getExternalLdapUserInfo(AmbariLdapDataPopulator.java:644)
at org.apache.ambari.server.security.ldap.AmbariLdapDataPopulator.synchronizeAllLdapUsers(AmbariLdapDataPopulator.java:212)
at org.apache.ambari.server.controller.AmbariManagementControllerImpl.synchronizeLdapUsersAndGroups(AmbariManagementControllerImpl.java:5177)
at org.apache.ambari.server.controller.internal.LdapSyncEventResourceProvider.syncLdap(LdapSyncEventResourceProvider.java:490)
at org.apache.ambari.server.controller.internal.LdapSyncEventResourceProvider.processSyncEvents(LdapSyncEventResourceProvider.java:448)
at org.apache.ambari.server.controller.internal.LdapSyncEventResourceProvider.access$000(LdapSyncEventResourceProvider.java:65)
at org.apache.ambari.server.controller.internal.LdapSyncEventResourceProvider$1.run(LdapSyncEventResourceProvider.java:259)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.naming.CommunicationException: simple bind failed: host.example.net:389 [Root exception is javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake]
at com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:219)
at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2788)
at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:319)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:192)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:210)
at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:153)
at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:83)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:313)
at javax.naming.InitialContext.init(InitialContext.java:244)
at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:154)
at org.springframework.ldap.core.support.LdapContextSource.getDirContextInstance(LdapContextSource.java:42)
at org.springframework.ldap.core.support.AbstractContextSource.createContext(AbstractContextSource.java:344)
... 18 more
Caused by: javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:992)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928)
at sun.security.ssl.AppInputStream.read(AppInputStream.java:105)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
at com.sun.jndi.ldap.Connection.run(Connection.java:860)
... 1 more
Caused by: java.io.EOFException: SSL peer shut down incorrectly
at sun.security.ssl.InputRecord.read(InputRecord.java:505)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
... 8 more
而 ldap 服务器给我：err=13 nentries=0 text=TLS 保密性要求
slapd debug conn=16624 fd=13 ACCEPT from IP=datanode3:51578 (IP=0.0.0.0:389)
slapd debug conn=16624 op=0 BIND dn="" method=128
slapd debug conn=16624 op=0 RESULT tag=97 err=0 text=
slapd debug conn=16624 op=1 SRCH base="dc=example,dc=net" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uidNumber=-1))"
slapd debug conn=16624 op=1 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass
slapd debug conn=16624 op=1 SEARCH RESULT tag=101 err=13 nentries=0 text=TLS confidentiality required
slapd debug conn=16624 op=2 UNBIND
slapd debug conn=16624 fd=13 closed
slapd debug conn=16625 fd=13 ACCEPT from IP=datanode3:51580 (IP=0.0.0.0:389)
slapd debug conn=16625 op=0 BIND dn="" method=128
slapd debug conn=16625 op=0 RESULT tag=97 err=0 text=
slapd debug conn=16625 op=1 SRCH base="dc=example,dc=net" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uidNumber=-1))"
slapd debug conn=16625 op=1 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass
slapd debug conn=16625 op=1 SEARCH RESULT tag=101 err=13 nentries=0 text=TLS confidentiality required
slapd debug conn=16625 op=2 UNBIND
slapd debug conn=16625 fd=13 closed
slapd debug conn=16626 fd=13 ACCEPT from IP=datanode3:51584 (IP=0.0.0.0:389)
slapd debug conn=16626 op=0 BIND dn="" method=128
slapd debug conn=16626 op=0 RESULT tag=97 err=0 text=
slapd debug conn=16626 op=1 SRCH base="dc=example,dc=net" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uidNumber=-1))"
slapd debug conn=16626 op=1 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass
slapd debug conn=16626 op=1 SEARCH RESULT tag=101 err=13 nentries=0 text=TLS confidentiality required
slapd debug conn=16626 op=2 UNBIND
slapd debug conn=16626 fd=13 closed
slapd debug conn=2419 op=4783 SRCH base="dc=example,dc=net" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uid=ambari-qa))"
slapd debug conn=2419 op=4783 SRCH attr=uid uidNumber
slapd debug conn=2419 op=4783 SEARCH RESULT tag=101 err=13 nentries=0 text=TLS confidentiality required
slapd debug conn=2419 op=4784 ABANDON msg=4784
slapd debug conn=2685 op=4529 SRCH base="dc=example,dc=net" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uid=ambari-qa))"
slapd debug conn=2685 op=4529 SRCH attr=uid uidNumber
slapd debug conn=2685 op=4529 SEARCH RESULT tag=101 err=13 nentries=0 text=TLS confidentiality required
slapd debug conn=2685 op=4530 ABANDON msg=4530
slapd debug conn=2685 op=4531 SRCH base="dc=example,dc=net" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uid=ambari-qa))"
slapd debug conn=2685 op=4531 SRCH attr=uid uidNumber
slapd debug conn=2685 op=4531 SEARCH RESULT tag=101 err=13 nentries=0 text=TLS confidentiality required
slapd debug conn=2685 op=4532 ABANDON msg=4532
slapd debug conn=2671 op=4367 SRCH base="dc=example,dc=net" scope=2 deref=0 filter="(&(objectClass=posixAccount) (uid=ambari-qa))"
slapd debug conn=2671 op=4367 SRCH attr=uid uidNumber
slapd debug conn=2671 op=4367 SEARCH RESULT tag=101 err=13 nentries=0 text=TLS confidentiality required
slapd debug conn=2419 op=4785 SRCH base="dc=example,dc=net" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uid=ambari-qa))"
slapd debug conn=2419 op=4785 SRCH attr=uid uidNumber
slapd debug conn=2419 op=4785 SEARCH RESULT tag=101 err=13 nentries=0 text=TLS confidentiality required
slapd debug conn=2671 op=4368 ABANDON msg=4368
slapd debug conn=2419 op=4786 ABANDON msg=4786
slapd debug conn=2671 op=4369 SRCH base="dc=example,dc=net" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uid=ambari-qa))"
slapd debug conn=2671 op=4369 SRCH attr=uid uidNumber
slapd debug conn=2671 op=4369 SEARCH RESULT tag=101 err=13 nentries=0 text=TLS confidentiality required
slapd debug conn=2671 op=4370 ABANDON msg=4370
slapd debug conn=16627 fd=13 ACCEPT from IP=masternode:40376 (IP=0.0.0.0:389)
slapd debug conn=16627 fd=13 closed (connection lost)
如果我执行 ambari-server sync-ldap --existing 我会得到
Completed LDAP Sync.
Summary:
memberships:
removed = 0
created = 0
users:
skipped = 0
removed = 0
updated = 0
created = 0
groups:
updated = 0
removed = 0
created = 0
Ambari Server 'sync-ldap' completed successfully.
但是 ldap 服务器仍然给出相同的错误：err=13 nentries=0 text=TLSconfidentiality required
slapd debug conn=16682 fd=13 ACCEPT from IP=datanode2:42940 (IP=0.0.0.0:389)
slapd debug conn=16682 op=0 BIND dn="" method=128
slapd debug conn=16682 op=0 RESULT tag=97 err=0 text=
slapd debug conn=16682 op=1 SRCH base="dc=example,dc=net" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uidNumber=-1))"
slapd debug conn=16682 op=1 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass
slapd debug conn=16682 op=1 SEARCH RESULT tag=101 err=13 nentries=0 text=TLS confidentiality required
slapd debug conn=16682 op=2 UNBIND
slapd debug conn=16682 fd=13 closed
文件 /etc/ambari-server/conf/ambari.properties 可以读取：
authentication.ldap.baseDn=dc=example,dc=net
authentication.ldap.bindAnonymously=false
authentication.ldap.dnAttribute=dn
authentication.ldap.groupMembershipAttr=gidNumber
authentication.ldap.groupNamingAttr=cn
authentication.ldap.groupObjectClass=posixGroup
authentication.ldap.managerDn=cn=admin,dc=example,dc=net
authentication.ldap.managerPassword=/etc/ambari-server/conf/ldap-password.dat
authentication.ldap.primaryUrl=host.example.net:389
authentication.ldap.referral=ignore
authentication.ldap.useSSL=true
authentication.ldap.userObjectClass=inetOrgPerson
authentication.ldap.usernameAttribute=uid
ldap.sync.username.collision.behavior=convert
ssl.trustStore.password=******
ssl.trustStore.path=/etc/ambari-server/keys/ldaps-keystore.jks
ssl.trustStore.type=jks
如果我跳过自签名证书，那么在执行 ambari-server sync-ldap --all 时会出现此错误：
ERROR [pool-18-thread-6] LdapSyncEventResourceProvider:460 - Caught exception running LDAP sync.
org.springframework.ldap.AuthenticationNotSupportedException: [LDAP: error code 13 - TLS confidentiality required]; nested exception is javax.naming.AuthenticationNotSupportedException: [LDAP: error code 13 - TLS confidentiality required]
at org.springframework.ldap.support.LdapUtils.convertLdapException(LdapUtils.java:194)
at org.springframework.ldap.core.support.AbstractContextSource.createContext(AbstractContextSource.java:356)
at org.springframework.ldap.core.support.AbstractContextSource.doGetContext(AbstractContextSource.java:140)
at org.springframework.ldap.core.support.AbstractContextSource.getReadOnlyContext(AbstractContextSource.java:159)
at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:357)
at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:309)
at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:642)
at org.apache.ambari.server.security.ldap.AmbariLdapDataPopulator.getFilteredLdapUsers(AmbariLdapDataPopulator.java:667)
at org.apache.ambari.server.security.ldap.AmbariLdapDataPopulator.getExternalLdapUserInfo(AmbariLdapDataPopulator.java:644)
at org.apache.ambari.server.security.ldap.AmbariLdapDataPopulator.synchronizeAllLdapUsers(AmbariLdapDataPopulator.java:212)
at org.apache.ambari.server.controller.AmbariManagementControllerImpl.synchronizeLdapUsersAndGroups(AmbariManagementControllerImpl.java:5177)
at org.apache.ambari.server.controller.internal.LdapSyncEventResourceProvider.syncLdap(LdapSyncEventResourceProvider.java:490)
at org.apache.ambari.server.controller.internal.LdapSyncEventResourceProvider.processSyncEvents(LdapSyncEventResourceProvider.java:448)
at org.apache.ambari.server.controller.internal.LdapSyncEventResourceProvider.access$000(LdapSyncEventResourceProvider.java:65)
at org.apache.ambari.server.controller.internal.LdapSyncEventResourceProvider$1.run(LdapSyncEventResourceProvider.java:259)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.naming.AuthenticationNotSupportedException: [LDAP: error code 13 - TLS confidentiality required]
at com.sun.jndi.ldap.LdapCtx.mapErrorCode(LdapCtx.java:3127)
at com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:3082)
at com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:2883)
at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2797)
at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:319)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:192)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:210)
at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:153)
at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:83)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:313)
at javax.naming.InitialContext.init(InitialContext.java:244)
at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:154)
at org.springframework.ldap.core.support.LdapContextSource.getDirContextInstance(LdapContextSource.java:42)
at org.springframework.ldap.core.support.AbstractContextSource.createContext(AbstractContextSource.java:344)
... 18 more
（ambari-server sync-ldap --existing 产生与其他情况相同的结果）。
ldap 服务器给出同样的错误：err=13 nentries=0 text=TLS 机密性要求
slapd debug conn=16772 fd=13 ACCEPT from IP=masternode:41760 (IP=0.0.0.0:389)
slapd debug conn=16772 op=0 BIND dn="cn=admin,dc=example,dc=net" method=128
slapd debug conn=16772 op=0 RESULT tag=97 err=13 text=TLS confidentiality required
slapd debug conn=16772 fd=13 closed (connection lost)
slapd debug conn=16773 fd=13 ACCEPT from IP=datanode1:35558 (IP=0.0.0.0:389)
slapd debug conn=16773 op=0 BIND dn="" method=128
slapd debug conn=16773 op=0 RESULT tag=97 err=0 text=
slapd debug conn=16773 op=1 SRCH base="dc=example,dc=net" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uid=root))"
slapd debug conn=16773 op=1 SEARCH RESULT tag=101 err=13 nentries=0 text=TLS confidentiality required
slapd debug conn=16773 op=2 UNBIND
slapd debug conn=16773 fd=13 closed
我跟着本指南安装 LDAP 服务器并可从所有节点使用它。据我了解，StartTLS 连接需要查询中的 -Z 选项。
例如查询：
ldapsearch -H ldap:// -x -b "dc=example,dc=net" -LLL dn
将产生
Confidentiality required (13)
Additional information: TLS confidentiality required
尽管
ldapsearch -H ldap:// -x -b "dc=example,dc=com" -LLL -Z dn
会正常工作。
不幸的是，我对 LDAP 的了解非常有限。如果我理解这个问题，我猜 Ambari 在查询 LDAP 时缺少 -Z 选项。有没有办法告诉 Ambari 在与它同步时添加它？
答案1
我发现我的问题来自于我已将 LDAP 配置为强制连接使用 TLS：
dn: olcDatabase={1}hdb,cn=config
changetype: modify
add: olcSecurity
olcSecurity: tls=1
我改成olcSecurity: tls=1了 0
同步现在工作正常，但我猜想 ambari-server 和 LDAP 之间的连接不再加密。我还注意到该命令getent passwd现在可以正确显示 LDAP 用户，而之前这些用户是缺失的。