CentOS安装OpenSSL1.1.1全过程

openssl version

yum remove openssl

cd /opt

wget https://www.openssl.org/source/openssl-1.1.1n.tar.gz --no-check-certificate

tar -zxf openssl-1.1.1n.tar.gz
cd openssl-1.1.1n

yum install gcc-c++
yum install -y pcre pcre-devel
yum install -y zlib zlib-devel

1. yum install -y perl-cpan
2. perl -mcpan -e shell
3. cpan[1]> install ipc/cmd.pm

./config --prefix=/usr/local/openssl

make -j 2

make install

ln -sf /usr/local/openssl/bin/openssl /usr/bin/openssl

vim /etc/ld.so.conf

ldconfig -v

openssl version