NetInstall enables automated OS installations, software updates, and packaged applications from a network based Mac OS X Server.  As a Systems Admin managing over 100 Mac clients, NetInstall simplifies customized imaging process to client systems.  …

Nmap (Network Mapper) is an open source security scanner to audit and identify network connections.  The command line based tool available in multi-platforms also offer GUI version of Zenmap.  Nmap has gained popularity for its …

“The NetBoot service in Mac OS X Server enables multiple Mac systems to boot from a single server-based disk image, instead of from their internal hard drive.  Updating the disk image on the NetBoot server …

RAID (Redundant Array of Independent Disks) increases performance and/or provide fault tolerance by combining inexpensive disks to appear as single logical unit. RAID employs the technique of balancing data across multiple hard disks to achieve …

Virtual Private Network (VPN) provides secure network connection over the internet.  All packets are encrypted with either Point-to-Point Tunneling Protocol (PPTP) or Layer Two Tunneling Protocol/ Internet Protocol Security (L2TP/IPSec) to create a secure tunnel …

Wireshark is an open source packet analyzer used to examine network traffic. Packets can be captured live from the wire and dissected for further assessment. Wireshark is an essential tool for Network Administrators …

WiFi networks are gaining popularity amongst many households as it becomes inexpensive and easy to setup.  Unlike the traditional wired networks, WiFi networks are more vulnerable to attacks.  Poorly configured wireless routers can easily be …

WEP and WPA are wireless security protocols used widely by wireless networking devices.  WPA has been the mainstream wireless encryption technology for many years but the outdated and insecure WEP continues to  live on.  In …