Tagged: private key

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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 authentication with certificates. We can use ssh-copy-id to send our certificate to the remote system but...

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How To Install and Use GPG Encrytion In Linux In Order To Encrypt and Decrypt Files and Folder?

Security is important part of the today’s IT operations. There are a lot of tools which provides some part of the secure operations. GNU Privacy Guard or simply GPG is a one of them. It provides encryption, decryption, digital signatures and signing. Install GPG To Ubuntu, Debian, Mint and Kali...

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How to Add Ssh Keys with ssh-add In Linux?

SSH protocol provides different ways for authentication. Key based authentication is the most secure one. In order to use key based authentication we should store the key in a command place. SSH agents reads keys and uses for authentication with remote system. We can use ssh-add to store keys in a...

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How To Generate Certificate Signing Request (CSR) with OpenSSL?

OpenSSL provides different features about security and certificates. Public and Private Key cryptography also supported by OpenSSL. Websites, Firewalls and other applications uses Certificates in order to encrypt their network traffic or authenticate each other. In this tutorial we will look how to create Certificate Signing Request. Generate RSA Key...

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OpenSSL Shell Commands Tutorial with Examples

OpenSSL is free security protocols and implementation library provided by Free Software community. OpenSSL libraries are used by a lot of enterprises in their systems and products. OpenSSL libraries and algorithms can be used with openssl command. In this tutorial we will look different use cases for openssl command. Private Key Private...

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How To Generate Ssh Key With ssh-keygen In Linux

Ssh is a secure and popular protocol for managing different type of IT devices like Linux systems, Network devices etc. What makes ssh secure is the encryption of the network traffic. Network traffic is encrypted with different type of encryption algorithms. There is also user authentication done with encryption algorithms....

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How To Use Multiple Ssh Keys?

I work on  Ubuntu and want to use multiple ssh keys to connect different serves. I have tried some different method but unluckily they have failed. How can I use multiple ssh keys? Multiple Hosts Multiple Keys Ssh config resides in .ssh/config file in user home directory. The magic is here.

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How To Setup SSH Keys

Ssh is a protocol designed to make network connections between hosts secure. Ssh is de facto standard for Linux and related operating system. Ssh encrypts the connection between sides. Ssh gives terminal access between host and server. To get a terminal there need to be an authentication process. The authentication...

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