Author Archives: Gkhan

How to search text in Ubuntu Linux

How to search text in Ubuntu Linux 1- Install ack-grep by typing #sudo apt-get install ack-grep 2- Change to the directory where you want to search # ack-grep yourtext it will show all files containing text  yourtext

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Cisco 7960 SIP Phone India Time Setting

My Phone was showing One  hour ahead in IST time . I configured below setting in SIPDefault.cnf.
It was showing one hour ahead due to  dst_auto_adjust:  was enabled. I just disabled its worked fine. Continue reading

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How to record linux ssh terminal output and replay it for all users

How to record linux ssh terminal output and replay it for all users we can get it done using script command .you can save all the session from all users login in to your server and there activity. this will … Continue reading

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How to install OpenVPN server on Centos 7

How to install OpenVPN server on Centos 7 1- Install Centos 7 64 bit minimal install 2- Update the Centos 7 # yum update -y 3- Install EPEL repositories cd /tmp wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm ls *.rpm yum install epel-release-latest-7.noarch.rpm

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How to install bigbluebutton web conference server.

How to install BigBlueButton web conference server. The minimum requirements for a BigBlueButton server are Ubuntu 16.04 64-bit OS running Linux kernel 4.x 8 GB of memory with swap enabled (16 GB of memory is better) 4 CPU cores (8 … Continue reading

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How to install Cisco Configuration Professional on windows 10 64 Bit

How to install Cisco Configuration Professional on windows 10 64 Bit Continue reading

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How to install ISSABEL PBX by USB flash drive

How to install ISSABEL PBX by USB flash drive 1- Download ISSABEL  ISO from  https://www.issabel.org/latest-iso 2- Download  RUFS  utility  https://rufus.ie/ 3- Convert ISO to USB  and choose  Write in DD Inamge mode

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How to configure GoIP GSM SIP VOIP Gateway with ISSABEL PBX

How to configure GoIP GSM SIP VOIP Gateway with ISSABEL PBX 1- Login in to GoIP GoIP default IP address is  192.168.8.1    default user name is admin password is admin . Step 1-   Create trunk in the ISSABEL PBX  … Continue reading

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Backup and Restore your Centos

Backup and Restore your Centos 7 Some time you want to take backup of your server including application and settings .below are the easy method a small example 1- The first step is to create a location to store the … Continue reading

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