Author Archives: Gkhan

Select your Cisco Switch

Select your Cisco Switch Quickly identify the right Cisco switch for your needs—whether you’re acquiring a new switch or upgrading an old one. Just answer a few simple questions and get your results. It’s that easy, so let’s get started.

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Cacti Table ‘host’ is marked as crashed and should be repaired

Cacti Table ‘host’ is marked as crashed and should be repaired My Cacti server lost all host information and on monitor tab its showing error  “Table ‘host’ is marked as crashed and should be repaired” I tried google got below … Continue reading

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Could not create the java Virtual Machine

Could not create the java Virtual Machine             When that happens, the easiest solution that has been tested on Windows XP, Windows 7 and Windows 8 is:

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How to install CentOS on Remote Server or VPS

How to install CentOS on Remote Server or VPS If you want to install CentOS remotely on server on slow link  even if you are able to mount the CentOS  installation media as DVD iso .It takes lots of time … Continue reading

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How to Show All NAT Tables Rules IPTABLES

How to Show All NAT Tables Rules IPTABLES iptables -t nat -L iptables -t nat -L -n -v | grep ‘something’ iptables -t nat -L -n -v The netstat-nat command display the natted connections on a Linux iptable firewall yum … Continue reading

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How to scan HBA Vmware ESXi Vmware Power CLI

How to scan HBA Vmware ESXi Vmware Power CLI Connect to your ESX or VCenter Server Connect-VIServer -Server 192.168.1.10  -Protocol https -User Administrator@vsphere.local -Password P@ssw0rd To Scan all ESXi hosts is Cluster Get-Cluster ‘cluster name‘ | Get-VMHost  | Get-VMHostStorage -RescanAllHba … Continue reading

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How to Bring Up a SVI Interface Cisco Switch

How to Bring Up a SVI Interface  Cisco Switch SVI must meet all of the following conditions to transition to the full “up/up” state. 1- The VLAN must exist and be active in the VLAN database. 2- At least one … Continue reading

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How to enable ESXi SSH And ESXi Shell Using PowerCLI

How to enable ESXi SSH And ESXi Shell Using PowerCLI Connect to the VCenter Server   #Connect to VCenter Server Connect-VIServer -Server 192.168.10.1 -Protocol https -User Administrator@vsphere.local -Password P@ssw0rd #Now Check which serveries are running and you want to start … Continue reading

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no “setup” command found in CentOS minimal install

no “setup” command found in CentOS minimal install In Minimum Install this will not get install If we got below Error, we need to install some packages to get work with setup command [root@gkhan.in ~] setup -bash: setup: command not … Continue reading

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NAT information saved in Elastix by FreePBX

NAT information saved in Elastix by FreePBX /etc/asterisk/sip_general_additional.conf

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