Year: 2012

Saved credentials not working when connecting to 2008 Terminal server from windows 7

Godwin DanielLeave a comment

“Your credentials did not work. Your system administrator does not allow the use of saved credentials to log on to the remote computer because its identity is not fully verified”

You get the above error when attempting to connect via RDP to a 2008 terminal server session, you are then able to connect using the same password typed in manually no matter how many times you try saving the correct password for the RDP connection.

One would probably get frustrated having to enter the password for a zillion rdp connections as Win 7 is not using the saved credentials. To get around this:

  1. Click on Start, and then in the search bar type: gpedit.msc
  2. Expand Computer Configuration, Expand Administrative Templates, Expand System, Expand Credentials Delegation
  3. Double Click on “Allow Delegating Default Credentials with NTLM-only Server Authentication“. Click the “Show…” button, Enter the following: TERMSRV/*
  4. Click OK, to close the Show Contents Window, Click OK again to close the next window.
  5. Double Click on “Allow Delegating Saved Credentials with NTLM-only Server Authentication“. Click the “Show…” button, Enter the following: TERMSRV/*
  6. Click OK, to close the Show Contents Window, Click OK again to close the next window.
  7. Click on Start, and then in the search bar type: GPUPDATE /FORCE

You should now be able to save the password for the RDP connection.

Excel and Word 2007 missing letters when printing

Godwin DanielLeave a comment

The characters in an equation are not printed when you print a Word 2007 document on a Windows XP-based or Windows Server 2003-based computer

To work around this issue, install the Complex Script support files. To do this, follow these steps:

  1. Click Start, and then click Run
  2. Type intl.cpl, and then click OK.
  3. Click the Languages tab.
  4. Under Supplemental language support, click to select the Install files for complex script and right-to-left languages (including Thai) check box.
  5. When you receive the following message, click OK to close the message:
    You chose to install the Arabic, Armenian, Georgian, Hebrew, Indic, Thai and Vietnamese language files. This will require 10 MB or more of available disk space. The files will be installed after you click OK or Apply on the Regional and Language Options dialog box.
  6. Click OK to close the Regional and Language Options dialog box

http://support.microsoft.com/kb/960985

 

Create a Shared Mailbox in Exchange 2007

Godwin DanielLeave a comment

Create shared mailboxes in Exchange 2007  using powershell  as the EMC in Exchange 2007 doesnt allow you to create shared mailboxes like the new exchange 2010.

You can do this with the help of the new-mailbox cmdlet.

Below is an example of creating a shared mailbox called Info and then assigning the info security group full access to the shared mailbox.

New-Mailbox -Name:’info’ -OrganizationalUnit:’contoso.loal/OU/users OU’ -Database:’Mailbox Database’ -UserPrincipalName:’info@contoso.com’ -Shared

Exchange 2007 will now create a shared mailbox and also create a disabled active directory account.

Now to assign full access

Add-MailboxPermission Info -User:’info group’ -AccessRights:FullAccess

You can also convert a mailbox to shared one usin the set-mailbox cmdlet.

Set-Mailbox Info -Type:Shared

Once this is done, you are now able to manage the shared mailbox via Exchange Management console if you need to assign permissions for full access or send as permission. The following powershell command is used to assign send-as rights and read/write personal information.

Add-ADPermission info -User:’info Group’ -ExtendedRights:Send-As -AccessRights:ReadProperty, WriteProperty -Properties:’Personal Information’

Active Directory Replication issues since time jump to the year 2000

Godwin DanielLeave a comment

Active Directory replication fails with Event 2042 reporting “It has been too long since this machine last replicated” and replication status 8614: “The Active Directory cannot replicate with this server because the time since the last replication with this server has exceeded the tombstone lifetime.” and

Time of last successful replication:

2000-11-19 14:09:12

I got this error on a site with 3 DC’s and yes that puts you 12 years back, even before this company existed.
Normal solution would be demote and promote the problem DC, but, after looking around technet I bumped into this article : http://blogs.technet.com/b/askpfeplat/archive/2012/11/19/did-your-active-directory-domain-time-just-jump-to-the-year-2000.aspx and an updated article http://blogs.technet.com/b/askpfeplat/archive/2012/11/23/fixing-when-your-domain-traveled-back-in-time-the-great-system-time-rollback-to-the-year-2000.aspx, well that explains it all. the main PDC NTP was pointing at USNO.NAVY.MIL and on November 19th, 2012, time servers at USNO.NAVY.MIL incorrectly provided time samples listing CY 2000 as the current year between the hours of 21:07 UTC and 21:59 UTC (16:07-16:59 EST).

-Run W32tm /stripchart /computer:NTPServerAddress to make sure you are getting the correct time from your new source.

-Set the correct time settings to a known good source.

  1. Locate and then click the following registry subkey:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters
  2. In the pane on the right, right-click NtpServer, and then click Modify.
  3. In Edit Value, type Peers in the Value data box, and then click OK.

-Run w32tm /config /update

NOw ofcourse you are having replication issues as AD replication would have happened when the time was set to the year 2000 and when your time is back from the past you are bound to have replication issues due to tombstone settings.
Proceed with making sure “Strict Replication Consistency” is enable in the registry value(HKLM\System\CurrentControlSet\Services\NTDS\Parameters\Strict Replication Consistency ) has been set to the default for Server 2003 and greater value, which is 0x1 before you do.“Strict Replication Consistency” will ensure that no lingering objects will be replicated out if they really exist after we force the replication to happen.

Note: This forces the replication even if the AD replication has failed with the partner for more than the tombstone lifetime. In most cases, if the server is really having the replication failure and is not caused by this unexpected time jump issue, you would see new replication errors caused by lingering objects as long as “Strict Replication Consistency” is 0x1; then no lingering objects would be really replicated out.

We will now want to follow  http://technet.microsoft.com/en-us/library/cc757610(WS.10).aspx

On the downstream domain controller where it reported the replication error code 8614 (ERROR_DS_REPL_LIFETIME_EXCEEDED), setup the “Allow Replication With Divergent and Corrupt Partner” registry value.

  1. Click Start, click Run, type regedit, and then click OK.
  2. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Parameters
  3. In the details pane, create or edit the registry entry as follows:If the registry entry exists in the details pane, modify the entry as follows:
    1. In the details pane, right-click Allow Replication With Divergent and Corrupt Partner, and then clickModify.
    2. In the Value data box, type 1, and then click OK.

    If the registry entry does not exist, create the entry as follows:

    1. Right-click Parameters, click New, and then click DWORD Value.
    2. Type the name Allow Replication With Divergent and Corrupt Partner, and then press ENTER.
    3. Double-click the entry. In the Value data box, type 1, and then click OK.

No restart is needed. Force replication in AD Sites and Services between the destination source and destination servers.

Remember to change the “Allow Replication With Divergent and Corrupt Partner” value back to 0x0 after the issue has been sorted out.
The DC I was working on had already been rebooted and one of the DC’s had kerberos related issues, so if you have noted this yr 2000 do not reboot DC’s.Event ID 4 is logged in system errors:

The kerberos client received a KRB_AP_ERR_MODIFIED error from the server <computer name>$. This indicates that the password used to encrypt the kerberos service ticket is different than that on the target server. Commonly, this is due to identically named machine accounts in the target realm (<domain name>), and the client realm. Please contact your system administrator.

To get around this, on the problem DC where you getting this error set the Kerberos Key Distribution Center Service to manual and stop the service.

-From a command prompt on the broken DC enter the following:
netdom resetpwd /s:name_of_working_DC or PDC/ud:domain\user /pd:*
where domain\user is an administrator of the domain in the domain_name\user_name format. You will be prompted to enter your password.

And now reboot this reboot clears the Kerberos ticket cache and so clears the broken credential attempts that it has stored, one can also run klist /purge and Y to all tickets to be deleted.
Support tools and commands useful to rectify this issue

– eventviewer

-repadmin /replsum

-repadmin /showrepl

-dcdiag

-replmon.exe

support tools windows 2003 32 bit: http://www.microsoft.com/en-gb/download/details.aspx?id=15326

Windows Server 2003 Resource Kit tools: http://www.microsoft.com/en-us/download/details.aspx?id=17657

Manage Exchange 2010 Calendar Permissions Using Powershell

Godwin Daniel3 Comments

You can add  Calendar Permissions Using Powershell for users using the following command:

if user2 needs to access user1’s calendar

Add-MailboxFolderPermission -identity “user1:\calendar” –user “user2” -AccessRights Reviewer

the same can be done to give permission to a security group

Add-MailboxFolderPermission -identity “user1:\calendar” –user “DomainName\securitygroup” -AccessRights Reviewer

Below is the list of access rights and explanation

None                                                   FolderVisible
Owner                                                CreateItems, ReadItems, CreateSubfolders, FolderOwner, FolderContact, FolderVisible, EditOwnedItems, EditAllItems, DeleteOwnedItems, DeleteAllItems
PublishingEditor                       CreateItems, ReadItems, CreateSubfolders, FolderVisible, EditOwnedItems, EditAllItems, DeleteOwnedItems, DeleteAllItems
Editor                                                 CreateItems, ReadItems, FolderVisible, EditOwnedItems, EditAllItems, DeleteOwnedItems, DeleteAllItems
PublishingAuthor                    CreateItems, ReadItems, CreateSubfolders, FolderVisible, EditOwnedItems, DeleteOwnedItems
Author                                              CreateItems, ReadItems, FolderVisible, EditOwnedItems, DeleteOwnedItems
NonEditingAuthor                   CreateItems, ReadItems, FolderVisible
Reviewer                                          ReadItems, FolderVisible
Contributor                                   CreateItems, FolderVisible

Redirect Exchange OWA to default site and force SSL in Exchange 2010

Godwin DanielLeave a comment

OWA redirect to default site forcing SSL

is useful If you have those one or two users who cant seem to remember to add the https or the OWA to the exchange OWA url.

To do this via IIS manger can be time consuming and tricky, below is the script which I came across (Mark Smith) which does it for you, just create a batch file with the script and run it once. The only thing you need to modify is https://mail.domain.com/owa

——-
c:
cd \Windows\System32\inetsrv

appcmd.exe ADD Backup “OWA REDIRECT BACKUP 01”

appcmd set config “default web site” -section:httpRedirect /childonly:true /enabled:true
appcmd set config “default web site” -section:system.webServer/httpRedirect -destination:”https://mail.domain.com/owa&#8221;

appcmd set config “default web site/Aspnet_Client” -section:httpRedirect /enabled:false
appcmd set config “default web site/Autodiscover” -section:httpRedirect /enabled:false
appcmd set config “default web site/ECP” -section:httpRedirect /enabled:false
appcmd set config “default web site/EWS” -section:httpRedirect /enabled:false
appcmd set config “default web site/Exchange” -section:httpRedirect -commit:apphost /enabled:false
appcmd set config “default web site/Exchweb” -section:httpRedirect -commit:apphost /enabled:false
appcmd set config “default web site/Microsoft-Server-ActiveSync” -section:httpRedirect -commit:apphost /enabled:false
appcmd set config “default web site/OAB” -section:httpRedirect /enabled:false
appcmd set config “default web site/OWA” -section:httpRedirect -commit:apphost /enabled:false
appcmd set config “default web site/PowerShell” -section:httpRedirect -commit:apphost /enabled:false
appcmd set config “default web site/Public” -section:httpRedirect -commit:apphost /enabled:false
appcmd set config “default web site/Rpc” -section:httpRedirect /enabled:false
appcmd set config “default web site/RpcWithCert” -section:httpRedirect /enabled:false

appcmd set config “default web site” -section:access -sslflags:”” -commit:apphost

appcmd set config “Default Web Site/Aspnet_Client” -section:access -sslFlags:Ssl,Ssl128 -commit:apphost
appcmd set config “Default Web Site/Autodiscover” -section:access -sslFlags:Ssl,Ssl128 -commit:apphost
appcmd set config “Default Web Site/EWS” -section:access -sslFlags:Ssl,Ssl128 -commit:apphost
appcmd set config “Default Web Site/ECP” -section:access -sslFlags:Ssl,Ssl128 -commit:apphost
appcmd set config “Default Web Site/Exchange” -section:access -sslFlags:Ssl,Ssl128 -commit:apphost
appcmd set config “Default Web Site/Exchweb” -section:access -sslFlags:Ssl,Ssl128 -commit:apphost
appcmd set config “Default Web Site/Microsoft-Server-ActiveSync” -section:access -sslFlags:Ssl,Ssl128 -commit:apphost
appcmd set config “Default Web Site/OWA” -section:access -sslFlags:Ssl,Ssl128 -commit:apphost
appcmd set config “default web site/PowerShell” -section:access -sslflags:”” -commit:apphost
appcmd set config “default web site/OAB” -section:access -sslflags:”” -commit:apphost
appcmd set config “Default Web Site/Public” -section:access -sslFlags:Ssl,Ssl128 -commit:apphost
appcmd set config “Default Web Site/Rpc” -section:access -sslFlags:Ssl -commit:apphost
appcmd set config “Default Web Site/RpcWithCert” -section:access -sslFlags:Ssl,Ssl128 -commit:apphost

cacls “C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\OAB\web.config” /E /P “NT Authority\authenticated Users”:R

iisreset
——

Insufficient System resources in Exchange 2010, disable back pressure/resource monitoring

Godwin Daniel2 Comments

Starting from Exchange 2007,  the edge transport service uses the system resource monitoring feauture to determine vital resources such as hard drive space and memory and take action in an attempt to prevent service outages. This can be a pain as the whole thing is calculated on a formula,

100 * (hard disk size – fixed constant) / hard disk size

this feature is called Backup pressure, more info on http://technet.microsoft.com/en-us/library/bb201658.aspx and how this formula works http://www.msexchange.org/articles_tutorials/exchange-server-2010/management-administration/back-pressure-exchange-2010-part1.html

Now simply put, you have this error from other smtp servers trying to contact yours : Insufficient System resources, to get around this you will need to increase the hard drive space or memory, until then you could temporarly disable this monitoring feature so that you can start recieving important emails. WARNING: this is not a recommended permanent solution, do this until youve figured what resource needs looking at i.e hard drive space, RAM etc.

Make a backup copy of the edgetransport.exe.config file before you start.

  1. Open the EdgeTransport.exe.config file from \Exchange Server\bin directory using notepad
  2. Add the following key+value pair:
    <add key=”EnableResourceMonitoring” value=”false” />
  3. Save file
  4. Restart the Microsoft Exchange Transport Service (MSExchangeTransport):
    Restart-Service MSExchangeTransport
  5. and you’ve got mail

Other options are to

configure the edgetransport.exe config file to reflect your server configuration and resources (not recommended by MS)

OR

move the queue database to another volume which has lots of space, add the following key to change the path of the queudb.

  1. Open the following file by using Notepad: C:\Program Files\Microsoft\Exchange Server\V14\Bin\EdgeTransport.exe.config.
  2. Modify the following line in the <appSettings> section. 
    <add key="QueueDatabasePath" value="<LocalPath>" />

    This example creates a queue database at the location C:\Queue\QueueDB.

    <add key="QueueDatabasePath" value="C:\Queue\QueueDB" />
  3. Save and close the EdgeTransport.exe.config file.
  4. Restart the Microsoft Exchange Transport service.
  5. Verify that the new Mail.que and Trn.chk files are created at the new location.
  6. Remove the unused Mail.que and Trn.chk files from the original location.

ref: http://technet.microsoft.com/en-us/library/f170cb0c-04a9-4fa7-b594-206e3a787e14.aspx
The following event logs will be logged:

  • Event ID 15004: Increase in the utilization level for any resource (eg from Normal to Medium)
  • Event ID 15005: Decrease in the utilization level for any resource (eg from High to Medium)
  • Event ID 15006: High utilization for disk space (ie critically low free disk space)
  • Event ID 15007: High utilization for memory (ie critically low available memory)

Have look out for the Event id which will help you in diagnose what resource needs to be looked at.

ref:http://exchangeserverpro.com/exchange-transport-server-back-pressure

Disk Cleanup tool keeps freezing or takes a long time to load in Windows XP

Godwin DanielLeave a comment

Every now again we cant escape the old desktop keeps freezing and running a disk cleanup, now When you try to compress old files on a Windows XP-based computer, the Disk Cleanup tool may stop responding, and you may receive the following message:

Disk Cleanup is calculating how much space you will be able to free on (C:).
This may take a few minutes to complete.
Scanning: Compress old files
This problem occurs when there is an incorrect entry in the registry that is used by the Disk Cleanup utility to locate compressed files. To work around this problem, follow these steps:

  1. Click Start, and then click Run.
  2. Type regedit in the Start Search box, and then press ENTER.
  3. Locate and then click the following registry key:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\VolumeCaches
  4. On the File menu, click Export, click Desktop, type VolumeCaches in the File name box, and then click Save.Note This step creates a backup of the VolumeCaches registry key. If you experience any problems after you complete the steps that are listed in this procedure, you can use this backup to restore the VolumeCaches key to its original state. To restore the key, double-click the VolumeCaches.reg file on your desktop, and then click Yes.
  5. Expand the following registry key:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\VolumeCaches
  6. Delete the Compress old files registry key.
  7. Exit Registry Editor.

OR
Download the fix for windows XP from here

Password Recovery Procedure for the Cisco VPN 3000 Series

Godwin DanielLeave a comment

The following method does not make you lose the configuration on the concentrator so far tested.

The factory default passwords for the Cisco VPN 3000 Series are:

username: admin

password: admin

Complete these steps in order to recover a password:

  1. Connect a PC to the VPN Concentrator with a straight-through RS-232 serial cable between the console port on the VPN Concentrator and the COM1 or serial port on the PC. Use software such as Putty  to connect to console.

    When the Concentrator boots, and after the power-up diagnostics check is complete, a line of three dots (…) appears on the console, a sample of which is shown here for reference. Press Ctrl-C within three seconds after you see these dots. This displays a menu that lets you reset the system passwords to the defaults.

  2. Boot-ROM Initializing... 
Boot configured 128Mb of RAM. 
... 

Loading image .......... 
Verifying image checksum ........... 
Active image loaded and verified... 
Starting loaded image... 
Starting power-up diagnostics... 

...

!--- At this second set of three dots, press Ctrl-C.
!--- On version 4.0.X and earlier returns with this information:


 
Main Menu Options 
----------------- 
1 - Reset Passwords 
Q - Quit Main Menu

!--- Newer version 4.1 and later returns with this information:


Main Menu Options
-----------------
1 - Reset Administrator Accounts
Q - Quit Main Menu