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Windows Servers

Windows Server 2016 VM Backup with Altaro's New V…

Altaro has released Altaro VM Backup, a faster and lighter upgrade to its flagship Hyper-V and VMware backup solution, which now supports all Windows Server editions and includes several highly-reque…

Cisco Services & Technologies

Unified Communications Components - Understanding…

What Is Unified Communications (UC)? Unified communications is a very popular term these days and we see it appearing on almost every vendor as they rename their platforms and products to incl…

Ethernet Protocol, CSMA/CD, Collisions

Ethernet Troubleshooting - Physical Frame Corrupt…

When troubleshooting your Ethernet network, the first thing to look for is physical frame corruption. In this essay, we will discuss the different causes of physical frame corruption and the characte…

ManageEngine Firewall Analyzer

Dealing with Security Audit Challenges: Discoveri…

The utilization of log analyzers, such as Firewall Analyzer, in network infrastructure plays a pivotal role in enhancing cybersecurity and fortifying the overall security posture of an organization…

ICMP Protocol

ICMP Protocol - Part 5: Source Quench Message Ana…

The ICMP - Source Quench message is one that can be generated by either a gateway or host. You won't see any such message pop up on your workstation screen unless you're working on a gateway which wi…

Palo Alto Networks

Complete Guide: Configuring IPSec VPN between Pal…

This article will show you how to configure an IPSec VPN tunnel between a Palo Alto firewall (all PANOS versions) and Meraki MX security appliance. Our comprehensive guide includes IPSec VPN setup fo…

ICMP Protocol

ICMP Protocol - Part 4: Destination Unreachable M…

The 'ICMP Destination unreachable' message is quite interesting, because it doesn't actually contain one message, but infact six! This means that the ICMP Destination unreachable futher breaks down i…

TCP - UDP Protocol Analysis

TCP Header Anaylsis - Section 3: TCP Header Lengt…

The third field under close examination is the TCP Header length. There really isn't that much to say about the Header length other than to explain what it represents and how to interpret its values…

Windows Servers

Guide to Windows Server 2016 Hyper-V Hypervisor…

One of Windows Server 2016 highlights is the newer Hyper-V server that not only extends the hypervisor’s features and capabilities but also introduces a number of new enhancements and concepts that t…

Cisco Switches

Complete Guide to DHCP Snooping, How it Works, Co…

This article covers popular Layer 2 & Layer 3 network attacks with a focus on DHCP Starvation Attacks, Man-in-the-Middle attacks, unintentional rogue DHCP servers and explains how security featur…

Network Protocol Analyzers

How to Detect P2P (peer-to-peer) File Sharing, To…

Peer-to-Peer file sharing traffic has become a very large problem for many organizations as users engage in illegal (most times) file sharing processes that not only consumes valuable bandwidth, but…

Cisco CallManager-CCME

Cisco Unity Express Installation/Setup - Service…

Mentioned in Part-1 of our Cisco Unity Express installation article, the Cisco Unity Express setup procedure is identical for ISM-SRE-300-K9 and SM-SRE-700-K9 modules. We will be using the smaller IS…