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Scheduling Process “cron” / “at”
At : jobs that will be executed only once Crontab : jobs will be executed repeatedly Minute 0-59 Hour 0-23 Day of month 1-31 Month 1-12 Day of week 0-6 Cmd Cmd to execute Managing the crontab Files #...
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Security Administration
Monitoring System Access Password Management: User not have password # login -p Password assign with options # passwd <username> [<option>] -d Delete a passwd -f Force the user to change...
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Volume Manager “RAID” / “SVM”
Presentation on RAID and SVM “Storage Volume RAID & SVM“ EXAMPLES: State Database – (State Database Replicas) To Creating the N number of State Database Replicas # metadb -a -f c1t0d0s7 c1t1d0s7...
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Show cpu, memory & bandwidth usage in the Topbar
Indicator-sysmonitor is a tool which monitor cpu usage , ram memory usage network bandwidth usage etc. Install indicator-sysmonitor on ubuntu 12.04 Download the indicator from:...
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Documenting The Code [Doxygen]
To document the c++, c or other Programming language use Doxygen - Opensource software - Easy to use - Integrate with Eclipse and other programming tools Official Site : Generate documentation from...
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Project Management Online Tool [Redmine]
Redmine is the web-based project management and bug-tracking tool Simple and easy to learn It is free and open source Handles multiple projects Issue tracking system Per-project wiki and forums Simple...
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Nested HyperV 2012 Installation in ESXi Host
==================== 1. Open PowerShell ==================== Type below commands:- 1.> Get-ExecutionPolicy 2.> Enable-WindowsOptionalFeature –Online -FeatureName Microsoft-Hyper-V –All -NoRestart...
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SNMP Configuration in CentOS Linux
1. Install SNMP packages: # yum install net-snmp-utils net-snmp 2. move/cut existing snmp configuration file to another location (here /tmp) # mv /etc/snmp/snmpd.conf /tmp 3. Create a new SNMP config...
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Installed Nested ESXi 6.0 [ Unable to power on 64 bit VM ]
or Unable to power on 64 bit VM Shutdown the VM(important) 1. Change VM hardware version to 9 or greater (either upgrade{right click VM} or change from .vmx file) 2. Write vhv.enable = “TRUE” to...
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Create Dummy VMs in Vsphere ESXi Hosts
1. Create a Python Script: # vi /var/opt/createvms.py Write Below lines.. —————————————————————————————————– #!/bin/python import os import sys for i in range(0, int(sys.argv[1])): vmname = “testvm%d”...
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