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Linux - Unix

Linux BIND DNS - Part 1: Introduction To The DN...

BIND (Berkely Internet Name Domain) is a popular software for translating domain names into IP addresses and usually found on Linux servers. This article will explain the basic concepts of DNS BIND...

Network Protocols

ISDN Layers, Protocols & Components

Our previous article was an Introduction To The ISDN Protocol. This article dives a bit deeper by examining ISDN Layers, Protocols & Components. ISDN uses circuit-switching to establish a phys...

Windows Workstations (XP, 7, 8, 10, 11)

How to Join a Windows 8, 8.1 Client to Windows ...

In this article, we will show how to add a Windows 8 or Windows 8.1 client to a Windows Domain / Active Directory. The article can be considered an extention to our Windows 2012 Server article cove...

Cisco CallManager-CCME

Cisco CallManager Express Basic Concepts - Part 2

Our previous article, Cisco CallManager Express Basic Concepts - Part 1 covered the very basic concepts of CCME and its operation. This article continues with the Cisco CallManager Express basic co...

Cisco Routers

Cisco 880W (881W, 886W, 887W, 888W) Multiple - ...

This article shows how to configure the embedded or integrated access point in a Cisco 880W series router (e.g Cisco 887W, Cisco 886W, Cisco 881W, Cisco 888W, etc) with multiple encrypted SSIDs (WP...

Windows Servers

How to Enable & Configure Shadow Copy for Share...

When you shadow copy a disk volume, you are actually generating a snapshot of the changes made to the folders and files within the disk volume at a certain point in time. Windows 2012 R2 shadow cop...

Cisco Wireless

Cisco Wireless Controllers (WLC) Datasheets Ava...

We would like to inform our readers that Firewall.cx has just made available as a free download all of Cisco's Wireless Controller Datasheets. The datasheets provide valuable infomation for all cu...

Cisco Services & Technologies

The Cisco Smart Care Service & Appliance

Cisco, as most IT engineers know, covers a wide range of products and services. These range from routers to switches, firewalls, intrusion prevention systems (ips), intrusion detection systems (ids...

Cisco Data Center (Nexus/UCS)

NEXUS NX-OS: Useful Commands, CLI Scripting, Hi...

Whether you’re new to Cisco Nexus switches or have been working with them for years this article will show how to get around the Nexus NX-OS using smart CLI commands and parameters, create you...

Windows Servers

How to Install and Configure SNMP for Windows S...

Simple Network Management Protocol (SNMP) is a UDP protocol that uses port 161 to monitor and collect detailed information on any network device supporting the SNMP protocol. All Windows servers su...

IP Protocol

IP Protocol - Part 2: The Internet Protocol (IP...

This article examines the Internet Protocol (IP) and its position within the OSI Model. We take a look at the IP Header and all fields contained within an Ethernet frame. Further examination of the...

ManageEngine Firewall Analyzer

Challenges & Solutions to Managing Firewall Rul...

In today's interconnected digital landscape, where businesses rely heavily on networked systems and the internet for their operations, the importance of cybersecurity cannot be overstated. Among th...