If you have freshly installed server then follow the steps given below. Step -1 : Disable SELinux and Firewalld. # setenforce 0 # systemctl stop firewalld # systemctl disable firewalld # rm -f /etc/selinux/config # touch /etc/selinux/config # chmod 644 Read More …
Category: CentOS-7
Linux – Get More Information About Hardware
Below are some Linux commands to get information about hardware. 1. List Storage Devices : lsblk # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT fd0 2:0 1 4K 0 disk sda 8:0 0 100G 0 disk ├─sda1 8:1 0 Read More …
Linux – Get More Information About OS
Below are the few commands to get information about the OS Version which you are using in Linux. 1. The File /etc/os-release : Linux maintains OS information in /etc/os-release file. You can display the file on screen using following command. Read More …
Linux Command Line Operators
In Linux following command line operators are used. All these operators are briefed below. 1. Redirection Operator : > Normally output of any command is sent to console or say monitor. Using redirection operator, the output of command can Read More …
Install Xfce GUI In CentOS 7
Xfce is bare minimum GUI in Linux. Below are the steps to install the same. 1. Install following packages using yu, # yum install epel-release -y # yum groupinstall “Server with GUI” “Xfce” -y 2. Set this as default booting Read More …
nice and renice Command In Linux
nice command is used to modify scheduling priority of some running command or application. If we give a process a higher priority, then Kernel will allocate more CPU time to that process. There are two terms which one should pay Read More …
Process Accounting In Linux 7
The latest Linux Kernel comes with very good feature of process accounting. Using this feature you can keep watch on the processes in Linux. Process accounting is the method of recording and summarizing commands executed on Linux. The modern Linux Read More …
Kernel Ring Buffer Messages – dmesg
The dmesg command is used to read all messages from kernel ring buffer. This information is very important to examine issues related to hardware or changes in hardware during runtime. You can get information as below. # dmesg To clear Read More …
Linux – Howto Increase swap Space In Runtime?
You can increase swap space in runtime as below. Below example shows howto add 1 GB swap space in existing swap space. Steps : 1. First check existing swap space. # free -mt 2. Create new zero filled file as Read More …
Get Hardware Information In Linux Using – inxi Utility
The inxi utility is very useful utility for getting summary of hardware which is available in your machine. You can install this Utility as below. 1. Download the Utility using wget command as below. # wget -O inxi smxi.org/inxi # Read More …