Skip to main content

A much needed Intro

Hi all,
am just one of those million computer geeks out there that do happen to blog randomly about Cisco and Linux world. I started of this blog to brush up my knowledge and also thought it might be a bit of help for some stranded surfer who do eventually happen to end up reading this blog.
I've taken of most of my previous posts in an urge to revamp this blog and give it a new structure.
I will try to coverup some of the basics of networking or rather Cisco network ing with the perspective for CCNA.

Location:Winter Ave,Stratford,United Kingdom

Comments

Popular posts from this blog

Linux -- TIPS

Hi, Actually, an incident at work with one of my friend has prompted me to write this. With out going into much details, I'd quickly like to tell all the readers out there that mounting an windows NTFS partition is quite possible in Linux (RedHat). All you have to do is to install the following components: Firstly, install the FUSE-xxx version. Can be downloaded from http://fuse.sourceforge.net/ It also has a detailed explanation of procedure. After successfully installing the FUSE package, look for the " NTFS-3g" . It can be downloaded from http://www.ntfs-3g.org/ And also comes with detail explanations of installation procedure. After finishing installation of the above two packages following command will sort out all your problems: # ntfs-3g /dev/(device) /(mount point) Will mount the ntfs partition on the targeted directory. NOTE: Don't put entry in the fstab, as it will fail. can put the above comand in "rc.local"  for automati...

VLANs and Trunks – I

Its the first major topic of our Cisco switch world. Well to start of let me tell you one secret, if you are using a managed switch, you are using VLANs, so its not that alien of a topic. Yes its true even if you have not came across setting up VLANs while configuring your networks (using managed switches), you are using VLAN, as its default “VLAN 1” every port of a managed switch belongs to VLAN 1 by default. So what is VLAN, lets start with a brief discussion of what switches do; Well they are the Layer 2 (OSI) device and divide collision domain on per port basis i.e. each port of a switch is a separate collision domain. But by default it does not divide the broadcast domain. To have separate broadcast domains we need a layer 3 device like a router. But there is a mechanism to divide broadcast domain at layer 2, and that mechanism is referred as VLANs. VLANs logically group users by segmenting broadcast domain. As per Cisco, VLANs = Broadcast Domain = Subnet End nodes on a giv...

Virtualization

The word "Virtualization" on its own, is too wide to discuss. But to cut it short, its a process of making one thing look like another. For our purposes we are referring to the ability of a computer to be split into multiple parts where the parts are (relatively) indistinguishable from the whole. For example, running different Linux environment on a single machine. Virtualization is often posed as a tool to over ride accustomed practice to having dedicated environments for each application, due to this one application per server deployment model, the majority of systems are grossly under-utilised like CPU utilization below 10% is normal. By virtualizing the physical hardware so that many “servers” can run simultaneously on the same physical machine we can drive utilisation much higher, to 50% or more. Hope it help!