Author Archives: Gkhan

Unable to increase disk size on virtual machine in ESX server

Posted on December 18, 2013 by Gkhan

you are unable to increase disk size on virtual  machine ,Disk Provisioning option has grayed out even you have disk space on data store . this may be following cases you have migrated P2V , and your disk adapter type … Continue reading →

Posted in VMware | Leave a comment

how to run multiple command on single line on CentOS

Posted on December 17, 2013 by Gkhan

If you want to run multiple command on single line on CentOS. If you want to execute each command only if the previous one succeeded, then combine them using the  “&&” operator. If one of the commands fails, then all … Continue reading →

Posted in Linux | Leave a comment

ERROR: 1062 Duplicate entry ‘localhost-root’ for key 1

Posted on December 17, 2013 by Gkhan

MySql Server installation fails when your host name is localhost you will get the “ERROR: 1062  Duplicate entry ‘localhost-root’ for key 1” or “ERROR: 1062  Duplicate entry ‘localhost-‘ for key 1” Simple solution is Use the command hostname to give … Continue reading →

Posted in Uncategorized | Leave a comment

How to monitor vos3000 services and start if vos3000 services stop

Posted on December 15, 2013 by Gkhan

If you want to monitor vos3000 services and start if vos3000 services stop .VOS3000 version 2.1.2.0 is stop after some time so you can monitor the vos3000 services  and start it . Here I am using three shell scripts to monitor to … Continue reading →

Posted in Uncategorized | 3 Comments

How to know vender by MAC address

Posted on December 7, 2013 by Gkhan

if you want to know network card vender by MAC address .MAC address first  16 bit is assign to vender  OUI code . Search your MAC address starting 16 bit below link http://standards.ieee.org/develop/regauth/oui/oui.txt VMware uses the Organizationally Unique Identifier (OUI) … Continue reading →

Posted in VMware | Leave a comment

how to run jar file from command line

Posted on December 1, 2013 by Gkhan

If you are trying to run Java file from command line (run jar file from command line) use the following example C:\Program Files (x86)\Java\jre6\bin>java -jar .jar I want to run Nexus 1000v installer from command line i will use following … Continue reading →

Posted in Uncategorized | Leave a comment

VOS3000 IPtables for port changing vos 3000 client and security

Posted on November 18, 2013 by Gkhan

VOS3000 IPtables for port changing : Use below rule to change your vos3000 client to access server on different port as 7899 or change as per your requirement iptables -A PREROUTING -t nat -p tcp -m tcp –dport 1202 -j … Continue reading →

Posted in Uncategorized | Leave a comment

Microsoft Visio Stencils for Cisco

Posted on November 10, 2013 by Gkhan

You will need Microsoft Visio Standard or Professional in order to view and use these stencils correctly. The files listed for download on this page are .vss (Visio stencil) files within .zip files. Some of the .zip files contain Microsoft … Continue reading →

Posted in Uncategorized | Leave a comment

How to change VOS3000 browser client port

Posted on November 7, 2013 by Gkhan

If you want to change VOS3000 browser client port address edit the following file or find server.xml file under apache-tomcat installation conf folder change the Connector port 80 to whatever you want which is not used on system and reboot … Continue reading →

Posted in Uncategorized | Leave a comment

How to change Timezone in VOS3000 after VOS3000 installation

Posted on November 7, 2013 by Gkhan

Some tome you want to change Timezone in VOS3000 after VOS3000 installation For Example I want to change my Time zone to Asia/Shanghai   easy way to change time zone on centos  run the system command  # system-config-date and select your … Continue reading →

Posted in Uncategorized | Leave a comment