Category Archives: Linux

Articles for Linux

How to check Internet Speed on Centos CLI

Posted on March 5, 2021 by Gkhan

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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Centos 6.x repository not working

Posted on February 25, 2021 by Gkhan

Centos 6.4 repository not working just rename     /etc/yum.repos.d/CentOS-Base.repo cd  /etc/yum.repos.d/ mv  CentOS-Base.repo  CentOS-Base.repo.old copy and paste below code on command prompt they try to use yum . cat <<-‘EOF’ > /etc/yum.repos.d/CentOS-Base.repo [C6.4-base] name=CentOS-6.4 – Base baseurl=http://vault.centos.org/6.4/os/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 enabled=1 … Continue reading →

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Centos 7 Setup command not found

Posted on January 25, 2021 by Gkhan

yum install setuptool -y yum install system-config-network* -y yum install system-config-firewall* -y yum install system-config-securitylevel-tui -y yum install system-config-keyboard -y yum install ntsysv -y yum install NetworkManager-tui nmtui

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How to search text in Ubuntu Linux

Posted on April 21, 2020 by Gkhan

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

Posted on April 12, 2020 by Gkhan

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 bigbluebutton web conference server.

Posted on April 12, 2020 by Gkhan

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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Backup and Restore your Centos

Posted on March 16, 2019 by Gkhan

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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How to Install VMware Tools on CentOS 7

Posted on October 28, 2018 by Gkhan

How to Install VMware Tools on CentOS 7 # yum install -y open-vm-tools check file is exist # ls /usr/bin/vmtoolsd Now reboot the server    

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How to check directory size in Linux

Posted on October 25, 2018 by Gkhan

How to check directory size in Linux DU command uses for disk uses you can use du command to check directory size. for example you want to check directory size of a folder “database” use -h for size in MB … Continue reading →

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How to update Centos 5 .X and cannot find a valid baseurl for repo

Posted on August 27, 2018 by Gkhan

How to update Centos 5 .X and cannot find a valid baseurl for repo If you are using CentOS 5.x and want to install any software and update CentOS 5.x  . you are getting following error . root@server1 [~]# yum … Continue reading →

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