Author Archives: Gkhan

How to setup your IT Infrastructure for Work From Home

How to setup your IT Infrastructure for Work From Home in low cost with open source secure industry standard technologies. Here I am going to talk about talk about small and medium size offices and companies who are not able … Continue reading

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How to Restart Management agents in ESXi Using ESXi Shell or Secure Shell (SSH)

How to Restart Management agents in ESXi Using ESXi Shell or Secure Shell (SSH). Log in to ESXi Shell or SSH as root.For Enabling ESXi Shell or SSH, see Using ESXi Shell in ESXi 5.x and 6.x Restart the ESXi host daemon … Continue reading

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how to restart vmware esxi Network adapter

how to restart vmware esxi Network adapter Login to VMware Esxi through ssh check the network interfaces by following command . # esxcli network nic list —-To  down your interface —– # esxcli network nic down -n vmnicX        … Continue reading

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How to enable call forwarding from SIP extension Softphone or Analog Phone

How to enable call forwarding from SIP extension Softphone or Analog Phone if you are using Asterisk PBX or Issabel PBX . From the Softphone or Analog Phone Dial *72 with number where you want to forward the call for … Continue reading

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MikroTik DHCP Server configuration for multiple Networks

MikroTik DHCP Server configuration for multiple Networks If you are having multiple Network  and want to configure DHCP server for your Networks . Follow the steps and change the  IP Address and Interface names according to your requirement. Here I … Continue reading

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how to configure sip trunk between cme and issabel

how to configure sip trunk between cme and issabel or how to configure sip trunk between cme and elastix. Some time we require sip communication between Cisco CME and Asterisk servers to send and receive  calls to and from CME … Continue reading

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centos 5.11 yum repository

centos 5.11 yum repository It is now EOD no updates available. but we require yum repo to install old applications . go to and run cd /etc/yum.repos.d for i in $(ls *.repo); do mv $i $i.orig; done copy the below … Continue reading

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How to check Internet Speed on Centos CLI

How to check Internet Speed on Centos CLI Speedtest-cli is Python script  its works on Python program. you must have Python installed. check if have installed . python –version python3 –version lsb_release -a if you have not install then install … Continue reading

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How to block Country in Mikrotik Firewall

How to block Country in Mikrotik Firewall. If you want to block whole country in Mikrotik firewall  visit the website https://mikrotikconfig.com/firewall/ step 1 :-  Check the countries you want included in the address list. Scroll down for additional countries. Step … Continue reading

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How to reset FreePBX admin password

How to reset FreePBX admin password If you forget the freepbx admin password  and you have  root  ssh access you can reset the admin  password . 1-  Access your login page  and press Ctrl +A 2- Copy the  unique session … Continue reading

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