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Network Protocols
File transfer is among the most frequently used TCP/IP applications and it accounts for a lot of the network traffic on the Internet. Various standard file transfer protocols existed even before the…
Palo Alto Networks
During the past decade, we’ve seen the global IT security market flooded with new network security and firewall security appliances. New vendors emerging into the market while existing well-known ven…
Cisco Firewalls
The Cisco ASA 5500 series security appliances have been around for quite some time and are amongst the most popular hardware firewalls available in the market. Today Firewall.cx takes a look at how t…
Cisco CallManager-CCME
We have been hearing about VoIP for many years now and while some have never worked with it, it has become today's standard in IP Communications and Private Branch Exchange (PBX) or telephony center…
Cisco Switches
This article focuses on VLAN Security and its implementation within the business network environment. We provide tips and Cisco CLI commands that will help you upgrade your VLAN network security. Ev…
Cisco Switches
This article covers basic and advanced configuration of Cisco Catalyst Layer-3 switches such as the Cisco Catalyst 3560G, 3560E, 3560-X, 3750, 3750E, 3750-X, 3850, 4500, 6500 , 9300, 9400 series, and…
Network Protocols
TFTP is a file transport protocol and its name suggests it's something close to the FTP protocol (File Transfer Protocol), which is true .. to a degree. TFTP isn't very popular because it's not reall…
Supernetting & CIDR
Supernetting is the opposite of of subnetting, and is also known as route aggregation or CIDR (Classless Inter-Domain Routing). Supernetting is a technique that allows multiple smaller network blocks…
Windows Servers
The Domain Name System (DNS) is perhaps one of the most important services for Active Directory. DNS provides name resolution services for Active Directory, resolving hostnames, URLs and Fully Qualif…
Windows Workstations (XP, 7, 8, 10, 11)
Not many users are aware that Windows 7 provides more than one way to configure a workstation’s network adaptor IP address or force it to obtain an IP address from a DHCP server. While the most popul…
Subnetting
When we subnet a network, we basically split it into smaller networks. For example, when a set of IP Addresses is given to a company, e.g 254 they might want to "break" (the correct term is "partitio…
Network Fundamentals
In today's world, securing your home network is more important than ever. With the increasing number of cyberattacks, data breaches, and online frauds, protecting your home network from potential thr…

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