CentOS 7默认仅支持OpenSSL 1.0.2版本，因此没办法原生支持很多新版本的特性，比如TLS 1.3等。事实上，OpenSSL已经官方淘汰了老版本的1.0.2支持。今天我们介绍一下如何在CentOS 7中安装OpenSSL 1.1.1.
请注意，由于CentOS 7的系统版本老旧，很多内置的环境都依赖老版本的OpenSSL 1.0.2, 因此安装OpenSSL 1.1.1之后可能会导致系统里其他组件失效或损坏。这里建议您升级CentOS 8, 或者备份好数据后谨慎操作。
本文作者为香菇肥牛，原文链接为https://qing.su/article/install-openssl-1-1-1-on-centos-7.html 转载需注明原文链接。感谢您的支持！
1, 安装编译环境
编译安装，我们需要安装必要的编译器和库：
1
2
2
yum update
yum install wget tar make gcc perl pcre-devel zlib-devel
yum install wget tar make gcc perl pcre-devel zlib-devel
2, 编译安装OpenSSL
首先，下载OpenSSL源码包。
1
2
3
2
3
wget https://www.openssl.org/source/openssl-1.1.1g.tar.gz
tar zxvf openssl-1.1.1g.tar.gz
cd openssl-1.1.1
tar zxvf openssl-1.1.1g.tar.gz
cd openssl-1.1.1
然后，编译安装：
1
2
3
2
3
./config –prefix=/usr –openssldir=/etc/ssl –libdir=lib no-shared zlib-dynamic
make
make install
make
make install
编译需要3-10分钟，请耐心等待。
3, 配置环境变量
1
2
2
export LD_LIBRARY_PATH=/usr/local/lib:/usr/local/lib64
echo “export LD_LIBRARY_PATH=/usr/local/lib:/usr/local/lib64” >> ~/.bashrc
echo “export LD_LIBRARY_PATH=/usr/local/lib:/usr/local/lib64” >> ~/.bashrc
此时，我们查看OpenSSL版本：
1
openssl version
就可以看到已经升级为OpenSSL 1.1.1了。
综上，我们在CentOS 7系统中编译安装了OpenSSL v1.1.1. 如果您有任何疑问，欢迎在这里留言，我将尽力解答。本文作者为香菇肥牛，原文链接为https://qing.su/article/install-openssl-1-1-1-on-centos-7.html 转载需注明原文链接。感谢您的支持！
正文完
可以使用微信扫码关注公众号（ID：xzluomor）
ดูบอลสด
Very well presented. Every quote was awesome and thanks for sharing the content. Keep sharing and keep motivating others.
ดูบอลสด
Pretty! This has been a really wonderful post. Many thanks for providing these details.
ดูบอลสด
Pretty! This has been a really wonderful post. Many thanks for providing these details.
ดูบอลสด
Hi there to all, for the reason that I am genuinely keen of reading this website’s post to be updated on a regular basis. It carries pleasant stuff.
Obrazy Sztuka Nowoczesna
Thank you for this wonderful contribution to the topic. Your ability to explain complex ideas simply is admirable.
ufabet
Hi there to all, for the reason that I am genuinely keen of reading this website’s post to be updated on a regular basis. It carries pleasant stuff.
ufabet
You’re so awesome! I don’t believe I have read a single thing like that before. So great to find someone with some original thoughts on this topic. Really.. thank you for starting this up. This website is something that is needed on the internet, someone with a little originality!
ufabet
Very well presented. Every quote was awesome and thanks for sharing the content. Keep sharing and keep motivating others.
ufabet
I truly appreciate your technique of writing a blog. I added it to my bookmark site list and will
ufabet
You’re so awesome! I don’t believe I have read a single thing like that before. So great to find someone with some original thoughts on this topic. Really.. thank you for starting this up. This website is something that is needed on the internet, someone with a little originality!
