Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base

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RHEL 6 – ISCSI Administration Series – Configuring ISCSI Server and Client

  ISCSI Server Configuration on RHEL 6 Overall Steps :  Install the RPM required for ISCSI Target Administration  Enable the ISCSI Target Services  Configure the ISCSI target to share the storage  Attach Luns to the ISCSI Target  Share the ISCSI Target to specific Client Machines  Add...

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SAN Storage Migration – Solaris with VxVM

This is a following post for my previous SAN migration post  Solaris host level SAN migration (with SVM) from Clariion to VMAX.   As discussed earlier in my previous post,  many organisations started migrating their Server storage from Old legacy SAN devices ( e.g. EMC Clariion )...

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RHEL 6 : LDAP BUG Tracking and Known issues for each version

This is just a reference document for LDAP administrators who are looking for specific bugs and known issues addressed in version of RHEL6 release so far. And this just gives you the brief overview of the bug/known issue, but for the solution and work around details you...

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RHEL 6.3 – LDAP Series – Part 3 : LDAP Configuration With Encrypted Communication using TLS/SSL

    LDAP server authentication without encrypted communication is not recommendable for any organization.  In this Post,  I will be discussing the procedure to configure LDAP server and client to use encrypted authentication and communication. This is third  Post  in LDAP implementation Series. Previous posts for...

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RHEL 6.3 – LDAP Series – Part 2 : Configuration of Certification Authority for LDAP encryption.

In this post, i will be explaining about necessary Certificate authority operations, to continue our actual task i.e. LDAP Configuration with encrypted communication. And this is Second post of LDAP Implemenation Series.  For quick recap you can refer the first post  ” RHEL 6.3 – LDAP Series...

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RHEL 6.3 – LDAP Series – Part 1 : Implementation of LDAP Authentication

What is LDAP  LDAP ( Lightweight Directory Access Protocol) is client-server protocol which provides directory services to the client machines.  Each LDAP server contain the  data required to making up the  LDAP database, commonly BDB  ( Berkely DB),  a high performance transactional database.  LDAP manages it’s...

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VxVM Troubleshooting – Increasing the Size of Veritas Disk Private Region

    We know that each disk under veritas volume manager  is having some  identification information in it’s private region, so that the disks are readily identifiable irrespective of the machine they are connected.  When we place these disks under Veritas Diskgroups, the VxVM will start writing...

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VCS Learning – I/O Fencing In action [ Video ]

This post is all about the purpose of I/O fencing and how i/o fencing works to avoid the split brain condition?. Normally, I do spend  4 to 6 hours to post a technical article  with complete details, but for this one I have spent lot more...

 
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