March 2, 2021 / Eternal Team
OpenSSL is a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. It is also a general-purpose cryptography library AnD providing support for various cryptographic algorithms such as cyphers (AES, Blowfish, DES, IDEA etc.), and cryptographic hash functions (MD5, MD4, SHA-1, SHA-2 etc.)
Step 1: Install the necessary packages for compiling
Issue the command below to install the necessary packages for compilation:
sudo apt install build-essential checkinstall zlib1g-dev -y
Step 2: Download OpenSSL
cd /usr/local/src/ sudo wget https://www.openssl.org/source/openssl-1.1.1c.tar.gz
Next, extract the downloaded file using the command below:
sudo tar -xf openssl-1.1.1c.tar.gz cd openssl-1.1.1c
Step 3: Install OpenSSL
sudo ./config --prefix=/usr/local/ssl --openssldir=/usr/local/ssl shared zlib
sudo make sudo make test sudo make install
Step 4: Configure OpenSSL Shared Libraries
cd /etc/ld.so.conf.d/ sudo nano openssl-1.1.1c.conf
Enter the following:
/usr/local/ssl/lib
Ensure to save before you exit.
Next, reload the dynamic link by issuing the command below:
sudo ldconfig -v
Step 5: Configure OpenSSL Binary
sudo mv /usr/bin/c_rehash /usr/bin/c_rehash.backup sudo mv /usr/bin/openssl /usr/bin/openssl.backup
Next, edit the /etc/environment file using vim.
sudo nano /etc/environment
Insert the following:
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/local/ssl/bin"
Ensure to save before you exit.
source /etc/environment echo $PATH
We can now check and verify our installation of the latest stable version of OpenSSL using the command below:
which openssl openssl version -a
So that’s it, OpenSSL is installed on your server.
