openssl 初识

openssl下载

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

make

make install

mv /usr/bin/openssl /usr/bin/openssl.bak

mv /usr/include/openssl /usr/include/openssl.bak

ln -s /usr/local/ssl/bin/openssl /usr/bin/openssl

ln -s /usr/local/ssl/include/openssl /usr/include/openssl

strings /usr/local/lib64/libssl.so | grep OpenSSL # 检查更新后的openssl依赖库是否是1.1.1g

echo "/usr/local/ssl/lib" >> /etc/ld.so.conf

ldconfig -v

报错[openssl: error while loading shared libraries: libssl.so.1.1: cannot open shared object file: No such file or directory]

cp /usr/local/lib/libcrypto.so.1.1 /usr/lib64/

cp /usr/local/lib/libssl.so.1.1 /usr/lib64/

or

ln -s /usr/local/lib/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1

ln -s  /usr/local/lib/libssl.so.1.1 /usr/lib64/libssl.so.1.1