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Security

How to Encrypt a Large File with OpenSSL in Linux

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File encryption relates to the provision of security to user/system files residing on a media device like a hard drive or USB drive. For such files to be encrypted, they need to be in a

How To Setup SSH Passwordless Login in AlmaLinux

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Secure Shell, popularly known as SSH, is a secure network protocol that allows users to securely connect to remote hosts such as servers. It is based on a client-server architecture and uses two main authentication

How to Install Suricata on RHEL, Rocky & AlmaLinux

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Suricata’s popularity is a result of it being an independent and open source threat detection engine, which is a lifesaver for Network administrators that are looking for a seamless and performant way of examining and

How to Block Access to wp-admin and wp-login in Nginx/Apache

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Despite the reputation of the WordPress Content Management System exceeding all expectations in terms of flawless content publishing and seamless user-access control, there are still some worrying security breaches that need prioritized handling. Two important

How to Restrict SSH Access to Certain Users in Linux

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OpenSSH (Secure Shell) is a standard connectivity program for logging into a remote machine using the SSH protocol for executing commands on the remote machine. It encrypts all network traffic between client and server to

How to Install SSH Server in Ubuntu 20.04

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SSH is a network protocol that allows you to connect to your Linux machine. If you are someone working in IT you know servers are present in data centers and to connect with the server

How to Create an SSH Key Passphrase in Linux

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SSH keys are commonly used without a passphrase. This is especially true when automating tasks because no human is expected to be available to type in the passphrase. Nevertheless, the use of SSH key passphrases

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