Posts Tagged ‘Pakistan’

vSphere Design Pocket Book

September 13, 2013

f224e-01-cover

Came across this eBook today and finished it reading almost two times on the go. Its basically a combination of tweets by VMware tech evangelists/experts giving away some very valuable tips and tricks on ESXi, vSphere, clustering, hardware considerations and resource allocation. I surely will start to follow these guide lines for my data-center. Thanks to PernixData; its available as a free download. You can access it here.

 

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Microsoft’s Private Cloud

June 12, 2013

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Just attended a conference; Microsoft’s Private Cloud which was an extension in regards to the TechEd 2013 event; the  Microsoft’s Premiere Event for IT Professionals & Enterprise Developers held from 3- 6 June 2013 at LA USA based on the new developments in Microsoft’s Private Cloud. So whats new? Well these are the new developments.

– R2 releases for Windows Server 2012 and System Center 2012 instead of going towards service packs.

– Azure comming to SQL as SQL Azure.

– SQL Server 2014 release.

– Concept of Hybrid Cloud was much emphasized. Utilization of services from a private cloud plus reservations in the Public Cloud as well. But then why would I let my datacenter invest in a 2-tier solution; didn’t understood that.

– Windows Intune now avaliable for Pakistan region.

– Full focus in integrating other virtualization platforms rather than sticking to Microsoft centric approach.

– Windows 8.1 release.

 

 

LDAPS Identity Source for VMware vCenter Single Sign On 5.1

May 21, 2013

ldap-logo

Once you are done with installation of VMware vCenter 5.1; you will notice that vSphere 5.1 client wont let you login into your vCenter Server. Either you will need to configure a local admin ID on your vCenter Server or if you have an active directory (AD) running in your environment; you will need to link that to your vCenter Server i.e. by configuring an identity source.

During installation of vCenter Single Sign On 5.1; it tries to add the identity source but in my case resulted in error (Error 29155.Identity source discovery error). I then found out its the case with other users as well and also was pointed out in VMware in their KB articles. The workaround for the issue given was to add the identity source manually. Doing so I got the following errors.

[LDAP: error code 8 – 00002028: LdapErr: DSID-0C0901FC, comment: The server requires binds to turn on integrity checking if SSL\TLS are not already active on the connection, data 0, v1db1]

and

simple bind failed:yourdomain:636

These errors are due to the fact that your AD is configured to communicate over LDAPS SSL connection. Hence to register your identity source; you will need the X.509 certificate of your AD domain controller (DC). For that export the certificate of your AD but make sure its the Base-64 X509 Certificate.

Cert 03

Once imported; again add the identity source as demonstrated below.

LDAPS

Once you chose the certificate from Choose Certificate tab; make sure you get the following confirmation. If not there must be something wrong with your certificate.

certsucc

You can click on Test Connection to verify your AD connectivity.

connecsucc

If you are still facing problems in adding the identity source; make sure of he following things:

  • Your vCenter, vSphere, vSphere Web Client, vCenter SSO etc must all be installed in the same default directories.
  • Do add the port 3269 with your FQDN.
  • There must a proper forward and reverse pointer entry on your DNS for your vCenter Server.
  • Enter the complete user name for authentication e.g. user@domain.com
  • If your domain controller is behind a firewall; make sure you have configured a policy to allow vCenter traffic.

SQL Database Creation for vCenter 5.1 and vCenter Single Sign On 5.1

May 17, 2013

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I am not a database guy and always have avoided anything related to it. When installing VMware vCenter 5.1 or earlier; you are prompted to create a DB instance. You can carry on by creating a default instance of SQL Express (zero effort required; YES I have always done that). But doing so is not recommended in a production environment as the DB gets populated and there are limited options to purge/protect your logs. Hence installation of separate SQL server is recommended. For a dumb person like me VMware is kind enough to include scripts for the DB creation and permission rights are available in the setup package but I found that customization was required. Hence for all the linked-minded fellows out there; this post might be of some help.

There are basically two DB’s needed to be created. One for the vCenter and other for the vCenter Single Sign On (SSO). VMware has made a major change in vCenter 5.1 for with its mandatory to install the SSO module.

I used Microsoft SQL Server 2008 (Enterprise Edition) to carry on my installation. For the basic requirement; select the following features:

  • Database Engine Services.
  • Client Tools Connectivity.
  • Integration Services.
  • Management Tools Basic/Complete

Once installed. Open the SQL Database Enterprise Manager and create a New Query. Execute the following three scripts one by one. (WordPress wont let me upload .sql or .txt files hence bear with .doc extension 🙂 )

  1. VCENTER_DB_CREATION_SCRIPT
  2. SSO_RSA_DB_CREATION_SCRIPT_1
  3. SSO_RSA_DB_CREATION_SCRIPT_2

Once done with this; make sure to create the ODBC SYSTEM DSN for the vCetner DB (VCDB). Following are the steps to create the SYSTEM DSN.

  1. Go to ODBC DATA SOURCE ADMINISTRATOR from the Control Panel. Click the SYSTEM DSN tab from the top. Click ADD.DSN 01
  2. Double click SQL NATIVE CLIENTDSN 02
  3. Enter the NAME for the data source and the IP of the DB Server. Click NEXTDSN 03
  4. Select the SQL SERVER AUTHENTICATION OPTION and give the user (default: vpxuser) credentials (you provided in VCENTER_DB_CREATION_SCRIPT). Click NEXTDSN 04
  5. Make sure that VCDB database is selected in the CHANGE THE DEFAULT DATABASE TO tab. Click NEXTDSN 05
  6. Leave the default settings and click FINISHDSN 06
  7. You can verify your DB connectivity by clicking TEST DATA SOURCEdsn-07

DSN 08

After doing this; you can now proceed with your vCenter installation. Start the installation by clicking the vCenter Server Simple Install from the vCenter Setup Wizard.

During the SSO installation you will be asked to provide the DB details as illustrated below.  Provide the credentials you created in script SSO_RSA_DB_CREATION_SCRIPT_2.

Single Sign On 01

When the SSO and vCenter inventory setups get completed; the installation for the vCenter Server will begin. During the setup you will be again asked to provide the DB details. Select the radio tab for USE AN EXISTING SUPPORTED DATABASE and select the already created SYSTEM DSN (VCDB).  Make sure to enter the credentials you entered while you creating the SYSTEM DSN.

VCENTER 01

VCENTER 02

Thats all you need to configure the DB’s for your vCenter installation. I am personally done with my installation but now am stuck on a couple of up-gradation issues from 5.0 to 5.1. Hence in my next blog I will be writing on those issues.

Installation of VMware vSphere 5.0

September 29, 2012

So folks here is another of the VMware series blog I promised. The first one was about the setup of the VMware ESXi 5.0. This time am going to tell you about how to install the VMware vSphere 5.0 which you will use to log into your ESXi server. And here’s how you would be able to do that.

1.   To install VMware vSphere take any network PC with Windows XP/2003Srv/2008Srv/Vista/7 (32 bit or 64 bit), minimum 600 MB free space and minimum of 2 GB ram. Locate the setup file having the name “VMware-viclient-all-5.0.0-455964.exe” and double click it.

2.   Click Run to bypass the security warning.

3.   Setup will start extracting the files.

4.   Select the installation language and click OK.

5.   Click next to begin installation procedure.

6.   Click Next to agree to end-user patent agreement.

7.   Click “I agree to terms…” to agree to VMware end-user license agreement and click Next.

8.   Enter the required information and click Next.

9.   Browse to the destination installation folder and click Next.

10.   Click Install to begin the installation.

11.   Click finish to complete the installation.

12.   An icon for vSphere client will appear on your desktop. Double-click on it to launch the vSphere client.

13.   Enter the credentials for the virtual host machines and click login.

That all folks! Enjoy!

HEC Dissolution to Provincial Level.

April 5, 2011

The Higher Education Commission of Pakistan (HEC) in now dissolved to provincial level. Former chairman of  HEC and the pioneer of lucrative educational policies Dr. Atta Ur Rehman is terming this as a “National Disaster.” In an interview on a private news television channel he mentioned some the most obvious reasons for this dissolution which are:

1. To avoid degree scrutiny by our political leaders as member of the parliament needs to hold a graduate degree. The verification of these degrees was given to the HEC and as a result created a rift between the commission and the political circles.

2. To get illegal access to huge lands owned by different universities around Pakistan.

3. To further practice corruption within the education sector and to nurture respective political ideologies. As after this, it will be the provincial regulatory committees responsible for the provision of scholarships, grants and to oversee state and private universities. As a result, it would be soon that one would be able to find two-room universities in different corners of the country nurturing different political ideologies.

Now as a graduate myself in Pakistan and hoping to pursue my doctorate studies here; What do students like me fear? To start with, HEC now working as cells around Pakistan would lose its centralized transparent structure as we already have seen how incompetent our provincial structure is. Thanks to the 18th amendment of Pakistan constitution; which is dubbed to be the best thing happened to Pakistan since the 1973 constitution but only if we had a reliable strong political structure. Given the present scenario everyone is aware how dire this step is and what consequences we would be visible in few years time.

I also fear the the different grants and scholarships available to the Pakistani students from different governments and organizations around the would would be stopped. Its has been only few hours since the news of HEC dissolution is announced and already we had a statement from the present HEC chairman Dr. Javaid Laghari that the USAID and World Bank has stopped their aid which sums up to about $550 billion that was to be used by HEC for the coming 5 years to carry out different projects. Apart from these future promises, the present structure of the commission in question is also uncertain of its future like the HEC Digital Library and HEC e-learning.

Now the interesting thing would be to see how the nation responds to this. Dr. Atta-Ur-Rehman and Dr. Javed Leghari are already appearing on different news channels to sum up these mentioned facts to the nation. What matters now is would there be someone to carry out any action on this unfolding situation. I hope and I pray that there would be some patriotic Pakistanis among us that would stand up to this matter and do justice with it.


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