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Windows Servers
Download Altaro Free VM Backup & Win a PlayStatio…
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Altaro has launched a great contest in celebration of SysAdmin Day on 27th July!
They will be giving away Amazon eGift Cards to the first 100 eligible entr…
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 Routers
How To Configure ISDN Internet Dialup On A Cisco…
Some time ago, when broadband and ADSL wasn't available, analog and digital (ISDN) modems were the only way to connect to the Internet. Even though today ISDN isn't used much for Internet connectivit…
Ethernet Protocol, CSMA/CD, Collisions
The Ethernet II Frame Format
The following is a description of the frame format described by the original Ethernet Version II specification as released by DEC, Intel, and Xerox. Like the 802.3 spec, the Version II spec defines a…
Cisco Wireless
Wireless (Wifi) WEP WPA WPA2 Key Generator
The Firewall.cx Wireless LAN Key Generator will allow the generation of a WEP or WPA ASCII based encryption key and will provide the equivalent HEX or ASCII string so it can be inserted directly i…
Virtualization & VM Backup
How to Enable SNMP on VMware ESXi Host & Configur…
In this article we will show you how to enable SNMP on your VMware ESXi host, configure SNMP Community string and configure your ESXi firewall to allow or block access to the SNMP service from specif…
Network Address Translation - NAT
Network Address Translation (NAT) Overload - Part…
NAT Overload is the most common NAT method used throughout all networks that connect to the Internet. This is because of the way it functions and the limitations it can overcome, and we'll explore al…
The OSI Model
The OSI Model: Layer 5 - Session Layer
The Session layer is responsible for setting up, managing and then tearing down sessions between Presentation layer entities. The Session layer also provides dialog control between devices, or nodes…
Cisco Switches
Cisco Nexus 7000 Series Module Shutdown and Remov…
This article explains the procedure that should be followed to correctly shutdown/powerdown a Cisco Nexus 7000 series module and remove it from the chassis. We also include important tips that will h…
Linux - Unix
Working with Linux TCP/IP Network Configuration F…
This article covers the main TCP/IP network configuration files used by Linux to configure various network services of the system such as IP Address, Default Gateway, Name servers - DNS, hostname and…
Cisco CallManager-CCME
CallManager Express GUI Software Installation & C…
This article covers the installation of Cisco's CallManager Express on Cisco routers. Here you'll find the necessary installation commands, files to download, router's HTTP server configuration comma…
VPN Services & Guides
Best VPN Service - Top VPN Service Reviews and VP…
VPN Services have become a necessity for users concerned about their online privacy and security. With literally hundreds of thousands of attacks daily, exploits and security vulnerabilities being di…
Wi-Fi Key Generator
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