How To Install Root Certificate Authority (CA) in Linux

Certificate authorities (CAs) are critical in securing online communications and identities.
A certificate authority is a company or organization that acts to validate the identities of entities (such as websites, email addresses, companies, or individual persons) and bind them to cryptographic keys through the issuance of electronic documents known as digital certificates.

A digital certificate provides:
– Authentication, by serving as a credential to validate the identity of the entity that it is issued to.
– Encryption, for secure communication over insecure networks such as the internet.
– Integrity of documents signed with the certificate so that they cannot be altered by a third party in transit.

These certificates allow secure, encrypted communication between two parties through public key cryptography.

Given a CA certificate file foo.crt, follow these steps to install it on Linux:
– Create a directory for extra CA certificates in /usr/local/share/ca-certificates:
sudo mkdir /usr/local/share/ca-certificates/extra

– Copy the CA .crt file to this directory:
sudo cp foo.crt /usr/local/share/ca-certificates/extra/foo.crt

– Let Linux add the .crt file’s path relative to /usr/local/share/ca-certificates to /etc/ca-certificates.conf:
sudo dpkg-reconfigure ca-certificates

– In case of a .pem file on Ubuntu, it must first be converted to a .crt file:
openssl x509 -in foo.pem -inform PEM -out foo.crt

– Or a .cer file can be converted to a .crt file:
openssl x509 -inform DER -in foo.cer -out foo.crt

🌸 Support channel & make donation :

🌸 Subscribe for more videos :
Youtube:

🌸 Follow me On Social Media
Facebook :

***********************************************************************

🌸 Windows Subsystem for Linux WSL2 Commands

🌸 This Little Trick Will Prevent You From Messing Up With Your Application Database

🌸 PIP The Package Manager for Python

🌸 How to read Crystal Disk Info

🌸 How To Monitor the Health of Your Hard Drive in Linux using SMART

🌸 Linux iotop: Monitor your disk Input/Output

🌸 How To use the “du” (Disk Usage) Command in Linux

🌸 How To View Manipulate System Logs In Linux Using Journalctl Command

🌸 How To Sync And Backup Files In Linux Using Rsync Command

🌸 Linux cURL Command Tips and Tricks

🌸 Linux tail and multitail commands

🌸 Linux How To view Log Files

🌸 How To use the History Command On Linux

🌸 Tips and Tricks How To manipulate Text Files on Linux

🌸 How to Archive, Compress and Extract Files Using the tar Command on Linux

🌸 Linux – How to split larger files into smaller parts

🌸 Linux commands : Top

***********************************************************************

#sslcertificate #certificate #linux

[ad_2]

source