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This article shows you how to install OpenSSL in the Linux system, the content is concise and easy to understand, it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

What is Linux system Linux is a free-to-use and free-spread UNIX-like operating system, is a POSIX-based multi-user, multi-task, multi-threaded and multi-CPU operating system, using Linux can run major Unix tools, applications and network protocols.

Installation environment:

Operating system: CentOs7 quiet

OpenSSL Version:openssl-1.0.2j.tar.gz

The latest SSL address in the current version is http://www.openssl.org/source/openssl-1.0.2j.tar.gz.

1. Put the downloaded package in the root directory

2. Unzip it under the folder. Command: tar-xzf openssl-1.0.2j.tar.gz to get the openssl-1.0.2j folder.

3. Enter the decompressed directory: cd openssl-1.0.2j

4. Set the (--prefix) parameter for Openssl installation to the directory to be installed, that is, the files after installation will appear in this directory:

Execute the command:. / config-- prefix=/usr/local/openssl

5. Execute the command. / config-t

6. Execute make, compile Openssl

If the following error occurs here

Make [1]: gcc: Command not found angry

When I checked the Internet, I found that there was no GCC compiler in the CentOS7 I installed.

After ensuring that the system network is smooth, execute the command yum-y install gcc to install GCC (note, be sure to forget the smooth, otherwise the installation will not be possible)

7. Install Openssl:make install

8. Execute the following command

[root@localhost /] # cd / usr/local [root@localhost local] # ldd / usr/local/openssl/bin/openssl

A message similar to this appears:

9. View the path

...] # which openssl

View version

...] # openssl version

The method of uninstalling the old version of OpenSSL

Apt-get purge opensslrm-rf / etc/ssl # deleting the configuration file is how to install OpenSSL on a Linux system. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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