Category: Solaris Beginners Guides

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Unix Admin Reference – RAID ( Redundant Array of Independent Disks )

  1.  What is RAID?   RAID is an acronym for Redundant Array of Independent Disks. A RAID system consists of an enclosure containing a number of disk volumes,    connected to each other and to one or more computers by a fast  interconnect. Six levels of RAID are...

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SSH Tunnels – System administrator’s friend or foe?

Let us assume that our system administrator Jack is supporting for a server environment in which a small set of servers  are located in DMZ (Demilitarized zone ) network . In order to connect any DMZ server Jack has to ssh from his machine (windows PC/Unix...

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Understanding Network VLANs

Virtual LANs or VLANs are virtual separations within a switch that provide distinct logical LANs that each behave if there were configured on a separate physical switch. Some Important points about VLANS.  All the servers connected with in a VLAN will have same broadcasting domain, and...

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