Controlling Access to a VTY via SSH to a specific IP helps improve security to your Cisco Switches or Routers. You can control who can access the virtual terminal lines (vtys) to a router or Cisco Switch by applying an access list to inbound vtys. Switch(config)#access-list 1 remark “Restrict SSH Access” Switch(config)#access-list 1 permit host… Read More »
In this article I show you how to configure banner MOTD on Cisco switch. To configure the message-of-the-day (MOTD) banner that displays when the user logs in to a Cisco 2900 Series switch, use the banner motd command. Switch#conf t Enter configuration commands, one per line. End with CNTL/Z. Switch(config)# Switch(config)#banner motd ! Enter TEXT… Read More »
Configuring the Switch for the First Time. This guide describes how to initially configure a Catalyst 2900 series switch. To configure your switch you need a Cisco Console Cable, coupled with USB to 1 Serial (9 Pin) Port. This is totally dependent to the model of your Laptop. Step 1: Connect to your Cisco Switch… Read More »
National Qualifications Framework NQF Levels All qualifications are graded on the NQF (National Qualifications Framework), so you’ve probably seen mention of the NQF before. The objectives of the NQF are to: Create an integrated national framework for learning achievements Facilitate access to, and mobility and progression within education, training and career paths Enhance the quality… Read More »
By default, your server is started with the server’s given name as the hostname. Some software, requires a valid Fully Qualified Domain Name (FQDN) for the hostname to be used during their DNS resolution. This article describes how to change a server hostname in CentOS. Step 1 – Login to your server as a user… Read More »
PowerDNS is a DNS server, written in C++ and licensed under the GPL. It runs on most Unix derivatives. PowerDNS features a large number of different backends ranging from simple BIND style zonefiles to relational databases and load balancing/failover algorithms. A DNS recursor is provided as a separate program. Installation of the PowerDNS Authoritative server… Read More »
Simplify and scale your data center infrastructure through SimpliVity data virtualization platform using hyper-convergence. SimpliVity is accelerating its technology leadership in hyper-converged infrastructure space, definitely a killer technology and a major disruptive solution in the evolution of converged infrastructure. With SimpliVity, the hyper-converged technologies is a really change the game. Are you considering a move… Read More »
Understanding: Ransomware and how to protect against ransomware attacks. Ransomware is a type of malware that holds your computer hostage. Prevention is good, Protection is better, Back up is a must Ransomware is a malicious software virus that infects a computer, network or data. During the infection, your computer will either be locked or your… Read More »
COS2626: Assignment 02: Semester 2: October 2015 Question 1 The following questions are based on wireless networking. 1.1 Define the term wireless spectrum. The wireless spectrum is a continuum of the electromagnetic waves used for data and voice communication. 1.2 Describe the CHARACTERISTICS wireless transmissions have in common with wired transmissions. Use of the same… Read More »
Due date: 28 September 2016 Study material: (1) F&M: chapters 5–14, but excluding chapter 12 (2) Tutorial Letter 102: Part I: units 5–14 Please read the relevant study material in F&M and Tutorial Letter 102 before you begin this assignment. See more information about Tutorial Letter 102 in section 2.3 of this tutorial letter. Submission… Read More »