#安装依赖
apt-get install libpcre3 libpcre3-dev zlib1g-dev
#从官网下载源码
wget https://www.openssl.org/source/openssl-1.1.1g.tar.gz
#解压
tar -zxf openssl-1.1.1g.tar.gz
cd openssl-1.1.1g
#配置路径
./config ​--prefix=/usr/local/openssl

如果报错Failure! build file wasn't produced.，换成./config shared --prefix=/usr/local/openssl

#编译
make
#安装
make install

如果已经安装过openssl

cp libcrypto.so.1.1 /usr/lib/x86_64-linux-gnu/
cp libssl.so.1.1 /usr/lib/x86_64-linux-gnu/
rm /usr/bin/openssl
ln -s /usr/local/openssl/bin/openssl /usr/bin/openssl
openssl version

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