FAILED TO DOWNLOAD OUTLOOK ADDRESS BOOK (OAB) IN OUTLOOK CLIENT

Symptom

Some of users failed to download the Outlook Address Book from outlook client, the downloading process,  keep loading and take time to finish.

Cause

The downloading process failed from outlook client, because the Web Gateway blocked the access.

Resolution

The workaround, add the Exchange CAS name on the Exceptions list in the Internet Explorer Settings.

Troubleshooting steps:

Step 1:  Verify and check the OAB URL from the Outlook client, Test E-mail Autoconfiguration.  Uncheck the option "Use Guessmart" and "Secure Guessmart Authentication" and click Test.  Go to the XML tab and copy the OABURL, Example OAB URL path:

<OABURL>Http://cas_server_name.domain.com/0000000-0000-0000-0000/</oaburl> 

Step 2:  Copy the OABURL and paste the internet browser and edit the URL as example below and press enter;

Http://cas_server_name.domain.com/0000000-0000-0000-0000/oab.xml  

Step 3.  We should see the OAB content with combination word & number in encryption.  If you see the different page, such as Web Gateway as below;.  So we need to add the Exchange CAS name on the Exceptions list in the Internet Explorer Settings at every user that has the problem.

EASILY MANAGE FILES/PICTURES FROM ONEDRIVE TO LOCAL COMPUTER

Based on my experience, to make it easy.  We need to download the OneDrive app from the URL https://onedrive.live.com/about/en-za/download/ and install the OneDrive app on the local computer.  Then login with using Microsoft account and let the OneDrive app do the synchronization until finish.  After finished the sync, so we can easily manage the files/photos on the local computer.

RENEW CERTIFICATE ON EXCHANGE SERVER

If the certificate is already expired on Exchange server (07/10).  Below is the steps to renew it:

Step 1:  Verify and check the current certificate installed on exchange (CAS) server.  With run the ExchangeShell command syntax as below:

get-exchangecertificate | FL

Step 2:  Generate CSR from the exchange (CAS) server.  With run the ExchangeShell command syntax as below:

New-ExchangeCertificate -GenerateRequest -KeySize 2048 -Path c:\CertCSR.txt -SubjectName "c=MY, l=Kuala Lumpur, s=WP, o=Company, cn=webmail.company.com.my" -DomainName webmail.company.com.my, ex01.company.com.my, ex02.company.com.my, autodiscover.company.com.my, ex01, ex02, -PrivateKeyExportable:$true

Step 3:  Send the CSR file to the trusted certificate provider or internal certificate authority server.

Step 4 :  After received the .cer file from certificate provider or certificate authority server. We need to import the certificate (*.cer) to the Certificate, Personal Store.  And enable the certificate to the services.  Run the exchangeShell command syntax as below:

Import-ExchangeCertificate -Path c:\Cert\cert_name.cer | Enable-ExchangeCertificate -Services "SMTP, IMAP, POP, IIS"

Note:  The .PFX file are required if we have other exchange (CAS) server or reverse proxy (ISA/TMG) for Web publishing (OWA, ActiveSync, Outlook Anywhere).

Step 5:  To Generate the PFX file, you can export the PFX file from the exchange (CAS) server that you just installed the new certificate.
a.  Go to Run, and type MMC.
b.  On MMC, go to File and select Add/Remove Snap-in..
c.  Select Certificate, and click Add
d.  Chose Computer Account and click Next and Finish. 
e.  Click OK.
f.  Expand the Certificate, Personal
g.  Select the certificate that you just renew and select Export.
h.  On the Certificate Export wizard, the Personal Information Exchange (.PFX) selected and click Include all certificate..... and Export all......
i.  On the Certificate Export wizard enter the password and click Next with take note the PFX file will be stored..go trough the wizard until finish.  Then you need to copy the .PFX file to other server for the certificate install.


Reference URL:

Exchange 2007 CSR Creation Instructions
https://www.digicert.com/csr-creation-microsoft-unified-communications.htm
https://www.digicert.com/csr-creation-microsoft-exchange-2010.htm

Check CSR online
https://www.sslshopper.com/csr-decoder.html

SSL Certificate Installation in Exchange 
https://www.digicert.com/ssl-certificate-installation-microsoft-unified-communications.htm
https://www.digicert.com/ssl-certificate-installation-microsoft-exchange-2010.htm

IIS FTP TROUBLESHOOTING

For IIS FTP Log Troubleshooting, we can refer to the URL as below:

https://support.microsoft.com/en-ca/help/969061/the-ftp-7.0-status-codes-in-iis-7.0
https://support.microsoft.com/en-us/help/173054/file-time-stamp-mismatch-using-ftp-client
https://en.wikipedia.org/wiki/List_of_FTP_commands

https://www.iis.net/configreference/system.applicationhost/sites/site/ftpserver/logfile