A new feature of Red Hat Enterprise Linux 7 and CentOS 7 is that the default networking service is provided by NetworkManager, a dynamic network control and configuration daemon that attempts to keep network devices and connections up and active [...]
LINUX COMMANDS
Interface (NICs) Bonding in Linux using nmcli
Today, we'll learn how to perform Interface (NICs) bonding in our CentOS 7.x using nmcli (Network Manager Command Line Interface). NICs (Interfaces) bonding is a method for linking NICs together logically to allow fail-over or higher throughput. One of the ways to [...]
11:00 am
How to Sync Time Properly with NTP Server in CentOS 7.x
Chrony is an open source and free application that helps you keep the system clock in sync with a NTP server, thus allowing you to keep the exact time. It consists of two programs chronyd and chronyc. chronyd is the [...]
10:00 am
A Great Tool To Show Linux Command Progress Like % , ETA
Coreutils Viewer (cv) is a simple program that can be used to show the progress of any of coreutils commands. It uses information from file descriptors to determine the progress of a command for example the cp command. The beauty [...]
11:00 am
Linux blkid Command to Find Block Devices Details
Today we will show you how to use lsblk and blkid utilities to find out information about block devices and we are using a CentOS 7.0 installed machine. lsblk is a Linux utility that will display information about all the [...]
11:00 am
14 Linux ps Command Practical Examples
As an Operating System which inspired from Unix, Linux has a built-in tool to capture current processes on the system. From 'ps' manual page, it gives a snapshot of the current processes. It will “capture” the system condition at a single [...]
8:00 pm
timedatectl - Control Linux System Time and Date in Systemd
timedatectl is a Linux utility that may be used to query and change the system clock and it's settings. It is distributed as part of the systemd system and service manager and allows you to review and change the configuration [...]
11:00 am
rsync Command to Exclude a List of Files and Directories in Linux
rsync is a very useful and popular linux tool being used for backup and restoring files, but also for comparing and syncing them. We already shown you in the past how to use rsync command in linux with examples and today [...]
11:00 am
pidstat - Monitor and Find Statistics for Linux Procesess
The pidstat command is used for monitoring individual tasks currently being managed by the Linux kernel. It writes to standard output activities for every task managed by the Linux kernel. The pidstat command can also be used for monitoring the [...]
12:00 pm
Linux ss Tool to Identify Sockets / Network Connections with Examples
ss is part of the iproute2 (utilities for controlling TCP/IP networking and traffic) package. iproute2 is intended to replace an entire suite of standard Unix networking tools (often called "net-tools") that were previously used for the tasks of configuring network [...]
12:04 pm
Colourful ! systemd vs sysVinit Linux Cheatsheet
systemd is the new init system, starting with Fedora and now adopted in many distributions like RedHat, Suse and Centos. Historically, most of us have been using traditional SysV init scripts normally residing in /etc/rc.d/init.d/. These scripts invoke a daemon [...]
10:38 am
Awesome! Systemd Commands to Manage Linux System
Systemd is new service manager for Linux. It is a replacement for init system and can manage system startup and services. It starts up and supervises the entire system. In the article we are using centos 7.0 installed with systemd 216 [...]
9:29 am
8 Options to Trace/Debug Programs using Linux strace Command
The strace is the tool that helps in debugging issues by tracing system calls executed by a program. It is handy when you want to see how the program interacts with the operating system, like what system calls are executed [...]
12:03 pm
How to Change Hostname in RHEL / CentOS 7.0
You have probably needed to change the hostname of your CentOS 7 install for one reason or the other. Changing the hostname in CentOS 7 is now much simpler than ever. If you are ready open up your terminal and [...]
9:12 am