Author Archives: Gkhan

Unable to find network card in CentOS 6

Some time we are unable to find network information on ifcfg command or network connection does not work after cloning. To see all interfaces   ifcfg -a To force CentOS 6 to re-detect network interfaces Delete the MAC Address from ifcfg-eth0 … Continue reading

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How to check disk uses on Linux

How to check disk uses on Linux df command : Report file system disk space usage du command : Estimate file space usage Example :-

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CCIE Voice Evolves to CCIE Collaboration

During this 10th anniversary year of the CCIE Voice certification, Cisco is pleased to announce the next generation of Expert-level IT skills training and assessment for telecom, unified communications, and video staff. CCIE Voice is evolving to become CCIE Collaboration, … Continue reading

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CCIE Collaboration Lab Equipment and Software List

CCIE Collaboration Lab Equipment and Software List Passing the lab exam requires a depth of understanding difficult to obtain without hands-on experience. Early in your preparation you should arrange access to equipment similar to that used on the exam

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How to encrease datastore with running VMs Datastore on SAN Storage

How to encrease datastore with running VMs Datastore on SAN Storage http://www.50mu.net/2013/07/09/live-vmware-datastore-expansion-with-running-vms/  

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netstat command example

netstat command example Important command for TCP/IP ports status 1. List All Ports (both listening and non listening ports) List all ports using netstat -a # netstat -a | more Active Internet connections (servers and established) Proto Recv-Q Send-Q Local … Continue reading

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VMware vsphere esxi vcenter server storage-guide

VMware vsphere esxi vcenter server storage-guide A quick guide about SAN Storage using VMware ESX servers.

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Maximums Configuration for VMware vSphere 5.1

Maximums Configuration for VMware vSphere 5.1 When you select and configure your virtual and physical equipment, you must stay at or below the maximums supported by vSphere 5.1. The limits presented in the following tables represent tested, recommended limits, and they are … Continue reading

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How to create CCIE RS Lab on GNS3

How to create CCIE RS Lab on GNS3 1- Download GNS3  2-Install GNS3 (How to install and configure GNS3) 3-Search Cisco IOS Image c3725-adventerprisek9-mz.124-15.T10.bin in google and download it. and copy the IOS file (c3725-adventerprisek9-mz.124-15.T10.bin)  to C:\IOS Folder. Create below folders C:\IOS … Continue reading

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How to install Cisco Unified Communication Manager 7 on VMware Workstation

How to install Cisco Unified Communication Manager 7 on VMware Workstation Below are the steps I have taken to install CUCM ver 7.0 on my LAB. I am expecting you know how to install and configure VMware workstation and How … Continue reading

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