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What is Samba server in linux ?


Samba server is Collection Of a Linux Tools Which allows You to Communicate with Window Operating systems over a network. Samba Helps in browsing the network resources  using host name by name resolution instead of DNS. File and  Print Sharing is the Probably the most attractive samba feature.

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Steps to configure Raid in linux


(Redundant Array of Independent Disks) A disk subsystem that is used to increase performance or provide fault tolerance or both. RAID uses two or more ordinary hard disks and a RAID disk controller. In the past, RAID has also been implemented via software only.

In the late 1980s, the term stood for “redundant array of inexpensive disks,” being compared to large, expensive disks at the time. As hard disks became cheaper, the RAID Advisory Board changed “inexpensive” to “independent.”

RAID Document

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What is pam authentication in Linux


PAM AUTHENTICATION

When an applications needs to authenticate a user, it calls the appropriate PAM library function. The application also provides this function with a “conversation function”, so it may provide any necessary prompts to the user for passwords or other information. The PAM library looks at its configuration files and determines which modules need to be executed. Each module implements an authentication check of some sort, which may or may not include normal UNIX authentication through C library calls

 

Best Linux and Redhat institue in chandigarh and mohali


Red Hat combines a superior development model with a customer-friendly business model that gives customers the choice, flexibility, and power to build an IT infrastructure that solves their business problems and makes their IT a strategic advantage.

We do this by sharing. We share our expertise, our code, and our knowledge. We sell subscriptions for enterprise technology and services, we stand up for open source ideals, and we foster greater participation in the open source process. Red Hat is a catalyst for a technology movement that has already changed the world.
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Industrial Traning in mohali


Skydek Solutions represents a core theme that we strive to provide in our services and solutions . Skydek Solutions provides industrial training to BTech/MCA/BCA/Diploma students in fields likeAdvance Networking Technologies(CISCO) ,JAVA development,, PHP Programming and Web development , Redhat (RHCE) and Ubuntu Administration , Microsoft System Administration( MCSE 2003 , MCITP 2008 ).

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Difference between .ext3 and .ext2 file system in linux


Linux is a very different operating system according to the Microsoft operating system. Linux has a very Complicated history with different hardware platform. Linux has different types of file systems that are very different from another operating system in the world.

Linux support number of file system because Linux Works on VFS (Virtual  File System)  that is known as abstraction Layer between the kernel and the program in user space that issues on the file system Commands. VFS program runs inside the Kernel . The VFS avoids the duplication of the code in the Internal Layer.

EXT2…

Ext2 was the standard file system for linux until the introduction of ext3.It was introduced with the 1.0 kernel in 1993.Ext2 is flexible,can handle file system up to 4 TB,and supports long filenames up to 1012 characters,it has sparse super blocks feature which increase file system performance.

EXT3

Ext3 (Extended 3 file system) provides all the features of ext2,and also features journaling and backward compatibility with ext2.The backward compatibility enables you to still run kernals that are only ext2-aware with ext3 partitions.we can also use all of the ext2 file system tuning,repair and recovery tools with ext3 also you can upgrade an ext2 file system to an ext3 file system without losing any of your data.
Ext3’s journaling feature speeds up the amount of time it takes to bring the file system back to a sane state if it’s not been cleanly unmounted (that is,in the event of a power outage or a system crash).