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You cannot log on or you experience a long delay on a domain controller or on a member computer that is running Windows 2000, Windows XP, or Windows Server 2003

You cannot log on or you experience a long delay on a domain controller or on a member computer that is running Windows 2000, Windows XP, or Windows Server 2003

You may experience one or more of the following symptoms on a domain controller...
You may experience one or more of the following symptoms on a domain controller or on a member computer that is running Microsoft Windows 2000, Microsoft Windows XP, or Microsoft Windows Server 2003:
  • The following error message is logged in the system event log:

    Event Type: Error
    Event Source: Service Control Manager
    Event Category: None
    Event ID: 7000
    User: N/A
    Description: The Service Name service failed to start due to the following error:
    The service did not respond to the start or control request in a timely fashion. Note In this error message, Service Name is one of the services that are listed in the "More Information" section.

  • The following error message is logged in the system event log:

    Event Type: Error
    Event Source: Kerberos
    Event Category: None
    Event ID: 7
    User: N/A
    Description: The Kerberos subsystem encountered a PAC verification failure. This indicates that the PAC from the client <computer name> in realm <AD DNS domain name> had a PAC which failed to verify or was modified. Contact your system administrator.
    Data: 0000: c0000192

  • After the Log on dialog box appears, you receive the following error message:
    lsass.exe - System Error
    Object Name not found.
    After you click OK on the Log on dialog box, the computer may restart.
  • The computer automatically restarts before the Log on dialog box appears.
  • When the computer restarts, you experience a long delay before the Log on dialog box appears. When you try to log on by using a domain account, you cannot log on or you experience a long delay. Also, you may experience a long delay when you try to browse through the domain list on the Log on dialog box.
  • On a computer that is running Windows XP or Windows Server 2003, you receive notification that the computer hardware significantly changed after the last activation. This notification may also indicate that reactivation is required.
  • When you start Device Manager, no devices appear in the hardware list. You do not receive an error message. If you click Device Manager in the Computer Management snap-in, the results window remains empty.
  • The computer starts and then displays the Log on dialog box. However, the wait pointer does not change. The computer does not respond to the CTRL+ALT+DEL keyboard shortcut.
  • After the computer starts and the Applying Computer Settings part of the startup process occurs, you receive the following error message:
    lsass.exe - System Error

    Object Name already exists.
    When you click OK, the computer starts. Next, the computer reports that a service could not be started. If the computer is a domain controller, some functionality may not work as before. Additional error messages may appear in tools such as Dcdiag.exe.
  • If you try to manually start a service, you receive the following error message and then the computer restarts:
    lsass.exe - System Error

    Object Name already exists.

CAUSE
This problem may occur if one or more services that run in the Lsass.exe process...

This problem may occur if one or more services that run in the Lsass.exe process or in the Services.exe process are no longer configured to run as shared service processes. By default, services that run in these processes are configured to run as shared service processes.

RESOLUTION
If you have not successfully logged on after the problem first occurred, press t...

If you have not successfully logged on after the problem first occurred, press the F8 key when the operating system selection page is displayed or before the computer starts Windows. Select the Last Known Good Configuration option.

If you still experience the problem, follow these steps to log on to the computer and to run Sc.exe.

Windows 2000 and Windows XP
  1. Restart the computer.
  2. Press the F8 key before the Windows logo page is displayed.
  3. Press the F8 key to select Advanced Startup Options when the operating system selection page is displayed.
  4. Use the arrow keys to select Safe Mode with Command Prompt, and then press ENTER.
Windows Server 2003
  1. Restart the computer.
  2. Press the F8 key before the Windows logo page is displayed.
  3. Use the arrow keys to select Safe Mode with Command Prompt, and then press ENTER.
You can use the Sc.exe tool to determine what service is incorrectly configured. To do this, follow these steps.

Note Sc.exe is included with Windows XP and with Windows Server 2003. Sc.exe is also available in the Windows 2000 Server resource kit.
  1. Click Start, click Run, type cmd, and then click OK.
  2. Type the following commands. Press ENTER after you type each command:
    • Sc query HTTPFilter
    • Sc query KDC
    • Sc query Netlogon
    • Sc query NTLMssp
    • Sc query PolicyAgent
    • Sc query ProtectedStorage
    • Sc query SamSs
    • Sc query Eventlog
    • Sc query PlugPlay
The TYPE value must be 20 WIN32_SHARE_PROCESS for the services that are listed in the "More Information" section to be correctly configured. This value configures the services to run in shared service processes.

For example, if you type SC query Netlogon, you receive output that is similar to the following: 
C:\>sc query Netlogon

SERVICE_NAME: Netlogon
        TYPE               : 20  WIN32_SHARE_PROCESS
        STATE              : 4  RUNNING
                                (STOPPABLE,PAUSABLE,IGNORES_SHUTDOWN)
        WIN32_EXIT_CODE    : 0  (0x0)
        SERVICE_EXIT_CODE  : 0  (0x0)
        CHECKPOINT         : 0x0
        WAIT_HINT          : 0x0
Note Services that are configured to run in separate memory processes have a TYPE value of 10 WIN32_OWN_PROCESS.

After you determine what services are incorrectly configured, follow these steps to change the TYPE value:
  1. Click Start, click Run, type cmd, and then click OK.
  2. Type sc config Service Name type= share, and then press ENTER.

    Note In this step, Service Name is one of the services that are listed in the "More Information" section.
  3. Repeat step 1 for each service that is incorrectly configured.

    Note Even if you received activation notification before you followed these steps, you must reactivate your copy of Windows.

MORE INFORMATION
The following services run as part of the Lsass.exe process, unless otherwise sp...

The following services run as part of the Lsass.exe process, unless otherwise specified:
  • HTTPFilter (HTTP SSL)
  • KDCSVC (Kerberos Key Distribution Center)
  • Netlogon (Net Logon)
  • NTLMssp (NTLM Security Support Provider)
  • PolicyAgent (IPSEC Services)
  • ProtectedStorage (Protected Storage)
  • SamSs (Security Accounts Manager)
  • Eventlog (Event Log)
  • PlugPlay (Plug and Play)
 
April 01 1:47 PM | Add a comment | Permalink | Blog it

Excel单元格无法填充颜色

1、把“使用高对比度”这个选项取消。“对比高度”位置：首先单击Windows的“开始”菜单，将鼠标指向“设置”，执行弹出菜单中的“控制面板”命令。双击“辅助选项”图标。在“显示”选项卡上，可看到“使用高对比度”这个复选框。
 
2、打开文件的工具菜单→颜色→重新设置,确定。
March 16 10:58 AM | Add a comment | Permalink | Blog it

Assoc

Assoc

显示或修改文件扩展名关联。如果在没有参数的情况下使用，则 assoc 将显示所有当前文件扩展名关联的列表。

语法

assoc [.ext[=[FileType]]]

参数

.ext
指定文件扩展名。
FileType
指定要与指定的文件扩展名相关联的文件类型。
/?
在命令提示符下显示帮助。

注释

  • 要为一个文件扩展名删除文件类型关联，请通过按空格键在等号之后创建一个空白区域。

  • 要查看已定义了打开命令字符串的当前文件类型，请使用 ftype 命令。

  • 要将 assoc 的输出重定向到文本文件，请使用 > 重定向操作符。

示例

要查看文件扩展名为 .txt 的当前文件类型关联，请键入：

assoc .txt

要删除文件扩展名为 .txt 的文件类型关联，请键入：

assoc .txt=

要一次查看当前文件类型关联的一个画面，请键入：

assoc| more

要将 assoc 输出发送到 Assoc.cfg 文件，请键入：

assoc>assoc.cfg

March 11 10:23 AM | Add a comment | Permalink | Blog it | Windows

使用HP StorageWorks Library and Tape Tools检查HP磁带机压缩功能是否正常。

 

1.         运行HP StoragWorks Library and Tape Tools 软件，软件会检测系统上的SCSI设备，

2.         软件启动完成，将检测到的SCSI设备列出，

3.         选择你准备检测的设备，这个磁带机相关的信息将显示在右侧窗口，

4.         从窗口上方的图标中，选择 ‘Test’，

5.         接下来的窗口中，确保你准备测试的磁带机已经选中，然后从窗口下方的Test Group 中选择‘Data Compression Test’

 

   

    1.         点击开始测试，这个测试将擦除当前磁带机中的磁带上的数据，

2.         测试开始先检查磁带机的压缩开关是否打开，

   

3.         然后测试将根据大约2：1的压缩比率写、读200MB的数据到磁带上，

   

4.         测试完成后提示测试是否通过，

   

5.         点击Test Result 选项卡，查看结果报告，压缩比率在 ‘Analysis Results’中提到，

   

 

如果测试结果显示压缩比率为2：1，则说明磁带机的压缩功能正常，如果有明显的错误提示，则说明磁带机的压缩功能已经关闭或压缩功能有问题，运行LTT的其他测试，从近一步的测试结果中分析是否问题真的存在。

 

 

 

February 12 2:42 PM | Add a comment | Permalink | Blog it

关于接口处于err-disable的故障排查


故障症状：
线路不通，物理指示灯灭或者显示为橙色(不同平台指示灯状态不同)
show interface 输出显示接口状态：
FastEthernet0/47 is down, line protocol is down (err-disabled)
接口状态是err-disable。
sw1#show interfaces status
Port Name Status Vlan Duplex Speed Type
Fa0/47 err-disabled 1 auto auto 10/100BaseTX
如果出现了接口状态为err-disable，show interfaces status err-disabled命令能查看触发err-disable的原因。
下面示例原因为bpduguard，在连接了交换机的端口配置了spanning-tree bpduguard enable。
sw1#show interfaces status err-disabled
Port Name Status Reason
Fa0/47 err-disabled bpduguard
接口产生err-disable的原因可以由以下的命令来查看，系统缺省的配置是所有列出的原因都能导致接口被置为err-disable。
sw1#show errdisable detect
ErrDisable Reason Detection status
----------------- ----------------
udld Enabled
bpduguard Enabled
security-violatio Enabled
channel-misconfig Enabled
psecure-violation Enabled
dhcp-rate-limit Enabled
unicast-flood Enabled
vmps Enabled
pagp-flap Enabled
dtp-flap Enabled
link-flap Enabled
l2ptguard Enabled
gbic-invalid Enabled
loopback Enabled
dhcp-rate-limit Enabled
unicast-flood Enabled
从列表中，我们可以看出常见的原因有udld，bpduguard，link-flap以及loopback等。
具体由什么原因导致当前接口err-disable可以由show interface status err-disable来查看。
在接口模式下采用shutdown,no shutdown进行手动的激活。
在缺省配置下，一旦接口被置为err-disable，IOS将不会试图恢复接口。
这个可以由show errdisable recovery来查看，timer status下面所有的值都是disable。
下面的示例中，由于手工配置了bpduguard恢复，所以timer status的值变为Enable。
sw1#show errdisable recovery
ErrDisable Reason Timer Status
----------------- --------------
udld Disabled
bpduguard Enabled
security-violatio Disabled
channel-misconfig Disabled
vmps Disabled
pagp-flap Disabled
dtp-flap Disabled
link-flap Disabled
l2ptguard Disabled
psecure-violation Disabled
gbic-invalid Disabled
dhcp-rate-limit Disabled
unicast-flood Disabled
loopback Disabled
Timer interval: 300 seconds
Interfaces that will be enabled at the next timeout:
Interface Errdisable reason Time left(sec)
--------- ----------------- --------------
Fa0/47 bpduguard 217
配置IOS重新激活errdisable的接口，使用以下命令：
sw1(config)#errdisable recovery cause bpduguard
sw1(config)#errdisable recovery cause ?
all Enable timer to recover from all causes
bpduguard Enable timer to recover from BPDU Guard error disable state
channel-misconfig Enable timer to recover from channel misconfig disable state
dhcp-rate-limit Enable timer to recover from dhcp-rate-limit error disable state
dtp-flap Enable timer to recover from dtp-flap error disable state
gbic-invalid Enable timer to recover from invalid GBIC error disable state
l2ptguard Enable timer to recover from l2protocol-tunnel error disable state
link-flap Enable timer to recover from link-flap error disable state
loopback Enable timer to recover from loopback detected disable state
pagp-flap Enable timer to recover from pagp-flap error disable state
psecure-violation Enable timer to recover from psecure violation disable state
security-violation Enable timer to recover from 802.1x violation disable state
udld Enable timer to recover from udld error disable state
unicast-flood Enable timer to recover from unicast flood disable state
vmps Enable timer to recover from vmps shutdown error disable
配置完上述命令后，IOS在一段时间后试图恢复被置为err-disable的接口，这段时间缺省为300秒。
但是，如果引起err-disable的源没有根治，在恢复工作后，接口会再次被置为err-disable。
调整err-disable的超时时间，可以使用以下命令：
sw1(config)#errdisable recovery interval ?
<30-86400> timer-interval(sec)
可以调整在30－86400秒，缺省是300秒。
如果产生err-disable的原因是udld，下面有一条命令非常管用：
sw1#udld reset
No ports are disabled by UDLD.
同时，接口在被置为err-disable的时候，通常有一系列的日志产生，如下：
*Mar 15 15:47:19.984: %SPANTREE-2-BLOCK_BPDUGUARD: Received BPDU on port FastEthernet0/47 with BPDU Guard enabled. Disabling port.
sw1#
*Mar 15 15:47:19.984: %PM-4-ERR_DISABLE: bpduguard error detected on Fa0/47, putting Fa0/47 in err-disable state
sw1#
*Mar 15 15:47:21.996: %LINK-3-UPDOWN: Interface FastEthernet0/47, changed state to down
收集这些日志也非常管用。
所以建议配置一个syslog server，收集log信息。
*************************
sw1#show interfaces status
Port Name Status Vlan Du...
***************
开启errdisable功能，这样可以使用show errdisable来查看引发errdisable的原因是什么，再更加信息内容进行解决。
******************
你要是想不影响使用的话，先用
no errdisable detect cause loopback
执行一下，将已经死掉的端口，no sh 一下
如果没问题，肯定是环路了，你可再找时间，对怀疑有问题的switch用拔插法，一个一个拔掉网线去查，当然，有更有效的方法，你可查看有问题的switch的所有rj45和gi口的状态，哪个有errdisable信息哪个就有问题。
switch#show interfaces status err-disabled
Port     Name           Status     Reason
Fa0/22               err-disabled link-flap
Fa0/37   For office in 100K err-disabled link-flap
Fa0/41   unknow         err-disabled link-flap
Fa0/42   Training Dc066   err-disabled link-flap
Fa0/45   Production line VM err-disabled link-flap
switch#show errdisable detect
ErrDisable Reason   Detection status
-----------------   ----------------
pagp-flap         Enabled
dtp-flap         Enabled
link-flap         Enabled
l2ptguard         Enabled
gbic-invalid       Enabled
loopback         Enabled
switch#show interfaces status err-disabled
Port     Name           Status     Reason
Fa0/22               err-disabled link-flap
Fa0/37   For office in 100K err-disabled link-flap
Fa0/41   unknow         err-disabled link-flap
Fa0/42   Training Dc066   err-disabled link-flap
Fa0/45   Production line VM err-disabled link-flap
switch#sh errdisable flap-values
ErrDisable Reason   Flaps   Time (sec)
-----------------   ------   ----------
pagp-flap         3     30
dtp-flap           3     30
link-flap         5     10 ( link-flap 这就是因为链路质量不好导致的)

关闭errdisable detect
switch#no errdisable detect cause all
February 12 11:56 AM | Add a comment | Permalink | Blog it | Cisco
 

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