Articles That Might Interest:

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…

Network Protocol Analyzers

How to Detect Routing Loops and Physical Loops wi…

When working with medium to large scale networks, IT departments are often faced dealing with network loops and broadcast storms that are caused by user error, faulty network devices or incorrect con…

OpManager - Network Monitoring & Management

AIOps for Modern IT Operations: Automating Monito…

The days of relying solely on static monitoring dashboards and manual firefighting are long gone. Today’s environments demand automation-first operations, real-time observability across every layer…

Cisco Services & Technologies

Install & Fix Cisco VPN Client on Windows 10 (32…

This article shows to how correctly install Cisco VPN Client (32 & 64 bit) on Windows 10 (32 & 64 bit) using simple steps, overcome the ‘This app can’t run on this PC’ installation error, plu…

OpManager - Network Monitoring & Management

Free Webinar: Clients' network configuration and…

Defending your client's network from faulty configuration changes, poor compliance, and bringing the network back quickly from downtime can be challenging. It requires a lot of effort and time, a fai…

Windows Servers

Configuring Windows Server Roaming Profiles

Windows roaming profiles allow the mobile users of a company to always work with their personal settings from any network computer in a domain. Roaming profiles are a collection of personal user sett…

Cisco CallManager-CCME

Cisco CallManager Express Basic Concepts - Part 1

This article introduces basic CallManager Express (CCME) concepts by covering how a CCME router operates, how calls are setup between Cisco IP phones but also the role of a CCME router in this proces…

Network Fundamentals

Firewall Topologies

In this section we are going to talk about the different ways a firewall can be set up. Depending on your needs, you can have a very simple firewall setup which will provide enough protection for you…

ICMP Protocol

ICMP Protocol - Part 2: Echo / Echo Reply (Ping)…

As mentioned in the previous page, an Echo is simply what we networking engineers call a 'ping'. The Echo Reply is, as most would guess, the 'ping reply'. ICMP Echos are used mostly for trouble…

Windows Servers

Creating Windows Users and Groups with Windows 20…

In a Windows server environment, it is very important that only authenticated users are allowed to log in for security reasons. To fulfill this requirement the creation of User accounts and Groups is…

VPN Services & Guides

DNS Leak Testing & Protection – How to Avoid Expo…

Despite innovations in security and technology, it’s difficult to remain anonymous online. Identifying information is seemingly everywhere – from malicious JavaScript tracking to the location service…

Cisco Routers

Troubleshooting PPP Internet Connection On A Cisc…

The Point-to-Point Protocol is one of the most popular protocols around used by engineers, ISPs and companies around the globe for authentication of remote users & router equipment. The most com…