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Cisco Services & Technologies
Renewing Cisco Certifications without sitting for…
Without a doubt, Cisco certifications and specializations are among the most popular vendor certifications in the IT industry, and earning them doesn’t come easy. Anyone who’s achieved a Cisco certif…
Network Protocol Analyzers
How to Perform TCP SYN Flood DoS Attack & Detect…
This article will help you understand TCP SYN Flood Attacks, show how to perform a SYN Flood Attack (DoS attack) using Kali Linux & hping3 and correctly identify one using the Wireshark protocol…
Cisco CallManager-CCME
Configuring CallManager Express (CME) To Support…
Cisco is continuously developing its CallManager Express product, introducing new features and services to help keep up with its customers' and the market’s demands.
With the rapid increase of the m…
Windows Servers
Free Webinar: Scripting & Automation in Hyper-V w…
System Center Virtual Machine Manager (SCVMM) provides some great automation benefits for those organizations that can afford the hefty price tag. However, if SCVMM isn’t a cost effective solution fo…
Windows Servers
Installing Windows Server 2012 Active Directory v…
This article serves as an Active Directory tutorial covering installation and setup of a Windows 2012 Domain Controller using Windows Server Manager (GUI).
Readers interested in performing the insta…
Windows Servers
Free Hyper-V eBook - Create, Manage and Troublesh…
With the introduction of Hyper-V on the Windows Server platform, virtualization has quickly become the de facto standard for all companies seeking to consolidate their server infrastructure. While we…
Network Cabling
Important Direct Cable Connection Notes
This page was designed to provide some notes on Direct Cable Connection (File-transfer) of Win9x/ME/2000 with LAPLINK (Printer port) Cable or Null-Modem (serial port) Cable. We've already analysed ex…
Ethernet Protocol, CSMA/CD, Collisions
Manchester Signal Encoding
The device driver software receives a frame of IP, IPX, NetBIOS, or other higher-layer protocol data. From this data, the device driver constructs a frame, with appropriate Ethernet header informatio…
Linux - Unix
Linux File & Folder Permissions
File & folder security is a big part of any operating system and Linux is no exception!
These permissions allow you to choose exactly who can access your files and folders, providing an overall…
Cisco Routers
Resolving Cisco Router/Switch Tftp Problems: Sour…
When working with Cisco equipment that has multiple ip interfaces, a common problem engineers are faced with is trying to successfully tftp to or from the Cisco device. This issue is usually encounte…
Ethernet Protocol, CSMA/CD, Collisions
The Novell Proprietary Frame Format
Novell's Proprietary Frame Format was developed based on a preliminary release of the 802.3 specification. After Novell released its proprietary format, the LLC Header was added, making Novell's form…
TCP - UDP Protocol Analysis
UDP Protocol - Header
This article covers the UDP protocol. We examine the structure of the UDP header, the protocols that use UDP as a transport plus a lot more.
Some common protocols which use UDP are: DNS, TFTP, ARP…
Wi-Fi Key Generator
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