linux hostname change command

A hostname is a label assigned to a device connected to a computer network. It’s used to identify the device within the network. Hostnames are often human-readable and can be assigned to computers, printers, servers, or any other device connected to a network. They typically correspond to an IP address, which is the numerical address … Read more

Linux SHELL Scripting Tutorial 

What is Linux Shell What is shell scripting? Shell Script Consist of set of commands to perform a task. All the commands execute sequentially Some task like file manipulation, program execution,user interaction, automation of task etc can be done Types of Shell Bourne Shell Bourne shell is known as the first shell to be introduced, … Read more

FTP server configuration in Linux


File Transfer Protocol FTP The File Transfer Protocol is a Communication Protocol used for the transfer of computer files between a client and server on a computer network. Uses TCP/IP FTP also used to upload/download files from websites and servers. Remote Server FTP Setup: Config /etc/vsftpd/vsftpd.conf Remote Server FTP Setup: systemctl status vsftpd.service Client Server … Read more

Linux firewall open port

What is a Firewall A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on the rules defined. Basically used to determine and block untrusted network to access out system. Types of Firewall? software basedRunning on operating SystemHardware BasedA dedicated appliance with Firewall software between two different networks … Read more

Linux Types of Files

Files Symbol File Type – Regular file d Directory d Block device I Link C Device File S Socket P FiFO or Named Pipe S Socket S SocketSpecial file to enable Communications between two processes. Find under /run/Example: /run/chrony/chronyd.sock p Fifo OR Named-pipe send data from one process to another so that the receiving process … Read more

Step-by-step guide on how to use your Gmail account as your email sender via SMTP

How to Send Emails Using G mail Smtp services. Installation Yum install mail x Postfix Configuration /etc/postfix/ Add the Following lines Add the Following lines Location of sasl_passwd we savedsmtp_sasl_password_maps = hash:/etc/postfix/sasl/sasl_passwdEnables SASL authentication for postfixsmtp_sasl_auth_enable = yessmtp_tls_security_level = encrypt Disallow methods that allow anonymous authentication smtp_sasl_security_options = noanonymous Create a file under /etc/postfix/sasl/Filename: sasl_passwdAdd … Read more

linux cluster

High Availability Cluster Configuration in Linux Configuring a high availability (HA) cluster in Linux is a common practice to ensure continuous availability and fault tolerance for critical applications. HA clusters typically involve two or more nodes that work together to provide redundancy and failover capabilities. In this setup, if one node fails, another node takes … Read more

How to install sperky linux os step-by-step PDF

Why  Sparky? Sparky Linux is a GNU/Linux distribution based on the Debian GNU/Linux operating system. sparky Linux  system requirements. optical drive (CD/DVD) or USB port with USB Flash Drive. If your machine has less than 1GB of RAM, please use Sparky Advanced Installer instead. Sparky Linux Installation. Sparky Linux Features Special Editions:There are new iso … Read more

gnome ubuntu

How to install Ubuntu Create  Boo table pen drive now boot from your USB storage  and press enter now you will get this window. now you will get this window select the first option try or install Ubuntu press  enter Install Ubuntu now you will  get this window updates and other software. Installation type Now … Read more

NFS Mount linux

NFS enables system administrators to share all or a portion of a file system on a networked server to make it accessible to remote computer users. Clients with authorization to access the shared file system can mount NFS shares, also known as shared file systems. A network protocol for distributed file system. Using this ,a … Read more