What is UUID (Universally Unique Identifier)?
While developing applications or using services or mounting disks in Linux systems we may see the term UUID or 128 bit number which might seem interesting. UUID is 128 bir number which is used to...
Monthly Archive: March 2018
What Is Nagios?
Nagios is an open source system, network, application monitoring system. Nagios is designed to be run on Linux operating system or distributions like Ubuntu, Debian, CentOS etc. Architecture and Components Nagios is not a single...
What Is OpenSSL Library?
OpenSSL is most popular open source cryptography library which provides a lot of tools, libraries, algorithms about cryptography. It is mostly known with Secure Socket Layers (SSL) and Transport Layer Security (TLS) protocols. Supported Encryption...
“Perl warning Setting locale failed” Error and Solution In Linux
All operating systems uses some locale settings to properly interpret language related data. In Linux this settings are called as locale and used even without GUI or desktop environment. They are generally configured during installation of...
How To Install and Access TightVNC Remote Desktop In Linux?
TightVNC is a very handy remote desktop application which is based VNC protocol. TightVNC is mostly used for Linux systems in order to manage with a remote desktop environment with GUI. In this tutorial, we...
How To Install and Use Telnet Client In Linux and Windows
Telnet is easiest remote management protocol used in Computer networks. It remains popular even today because of its simplicity. Telnet is a client server protocol where clients uses telnet tool which to connect remote telnet...
What is Address Resolution Protocol (ARP) and How It Works?
Address Resolution Protocol (ARP) is auxiliary protocol used by Internet Protocol (IP). ARP is defined with RFC826 and gained main stream over computer networks. ARP is used to resolve IP address with MAC or hardware...
What Is Linux PAM (Pluggable Authentication)
Authentication is important part of the operations systems like Linux. As Linux operating systems are multi user systems and runs a lot of services and complex scenarios they generally need robust and easy to implement...
Linux ls Command Tutorial To List Files and Directories
ls is base command provided by all Linux distributions. We can use ls command to list files, folders or directories. In this tutorial we will look different use cases about ls. List Files and Directories We will...
How To Solve ssh-copy-id “ERROR: failed to open ID file” Error
ssh provides secure access to the remote systems console or command line. All linux boxes uses ssh securely. There are a lot of steps to make things secure and easy while connecting and using ssh. ssh provides passwordless...
