SSH is a popular, powerful, software-based approach to network security. It is used for logging into a remote machine and for executing commands on a remote machine. Whenever data is sent by a computer to the network, ssh will automatically encrypt [...]
LINUX COMMANDS
How to Use Linux watch Command with Examples
A server administrator needs to maintain the system and keep it updated and safe. A number of intrusion attempts may happen every day. There are some other activities that maintain their log. These logs are updated regularly. In order to [...]
2:39 pm
A Peep into Process Management Commands in Linux
A program in execution is called a process. While a program is an executable file present in storage and is passive, a process is a dynamic entity comprising of allocated system resources, memory, security attributes and has a state associated [...]
6:00 am
How to Manage Network using nmcli Tool in RedHat / CentOS 7.x
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 [...]
8:49 am
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 Init Cheatsheet for Linux
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