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 file
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 :-
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, reflecting advances in networked collaboration solutions beyond simple audio phone calls. The new CCIE Collaboration certification will expand to include Cisco’s leading solutions for voice, video, IM, presence, and call centers. The CCIE Voice certification will be retired as of February 14, 2014.
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
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/
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 Address Foreign Address State
tcp 0 0 localhost:30037 *:* LISTEN
udp 0 0 *:bootpc *:*
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags Type State I-Node Path
unix 2 [ ACC ] STREAM LISTENING 6135 /tmp/.X11-unix/X0
unix 2 [ ACC ] STREAM LISTENING 5140 /var/run/acpid.socket
List all tcp ports using netstat -at
# netstat -at
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 localhost:30037 *:* LISTEN
tcp 0 0 localhost:ipp *:* LISTEN
tcp 0 0 *:smtp *:* LISTEN
tcp6 0 0 localhost:ipp [::]:* LISTEN
VMware vsphere esxi vcenter server storage-guide
VMware vsphere esxi vcenter server storage-guide
A quick guide about SAN Storage using VMware ESX servers.
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 fully supported by VMware.
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
C:\GNS3CCIERS_LAB
C:\GNS3CCIERS_LAB\GNS_configs
C:\GNS3CCIERS_LAB\GNS_working
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 to create Virtual Machine
VMware workstation version 9
RAM minimum 2 GB
HDD minimum 80 GB (Split virtual disk in to multiple file)
CPU minimum 1 CPU