OpenSSL installation in Linux

OpenSSL is an open-source ssl technology. Because I need to use php-related functions and need to obtain https files, I have to install this. Below I have sorted out two ways to install and configure OpenSSL.

Method 1: Compile and install OpenSSL

2.1 preparations

System Version: Ubuntu-10.10-Server-I386
Update Source: apt-get update
Upgrade software: apt-get upgrade
Update System: apt-get dist-upgrade

2.2 view OpenSSL version

OpenSSL 0.9.8 is installed by default in some Linux systems, especially in VPS.

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Openssl version-

2.3 install the basic compiling environment

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Apt-get install build-essential

2.3 compile and install the Zlib library

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Wget http://zlib.net/zlib-1.2.5.tar.gz Tar-zxf zlib-1.2.5.tar.gz Cd zlib-1.2.5/ ./Configure -- prefix =/usr/local Make & make install

2.4 uninstall the old version OpenSSL

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Apt-get purge openssl Rm-rf/etc/ssl # Delete the configuration file 2.5 compile and install OpenSSL Prefix is the installation directory, and openssldir is the configuration file directory. We recommend that you install it twice. shared is used to generate a dynamic Connection Library. Wget ftp://ftp.openssl.org/source/openssl-1.0.0c.tar.gz Tar-zxf openssl-1.0.0c.tar.gz Cd openssl-1.0.0c/ ./Config -- prefix =/usr/local -- openssldir =/usr/local/ssl Make & make install ./Config shared -- prefix =/usr/local -- openssldir =/usr/local/ssl Make clean Make & make install

Enter

Method 2,

 

OpenSSL library Installation

Official Website: http://www.openssl.org

Download Page: http://www.openssl.org/source/

Download the latest version

Http://www.openssl.org/source/openssl-1.0.0a.tar.gz

Decompress:

Tar-zxvf openssl-1.0.0d.tar.gz, unzipped Directory: openssl-1.0.0d

Then enter the cd openssl-1.0.0d for configuration, compilation, Installation

Configuration

./Configure or./config

Compile

Make

Install

Make install