CentOS 安裝openssl

安裝環境：
操作系統：CentOS 7

OpenSSL Version:openssl-1.0.2f.tar.gz

OpenSSL地址爲http://www.openssl.org/source/openssl-1.0.2f.tar.gz

1、安裝 Openssl:

[root@localhost openssl-1.0.2f]# wget http://www.openssl.org/source/openssl-1.0.2f.tar.gz
[root@localhost openssl-1.0.2f]# tar -xzf openssl-1.0.2f.tar.gz
[root@localhost openssl-1.0.2f]# cd openssl-1.0.2f
[root@localhost openssl-1.0.2f]# mkdir /usr/local/openssl
[root@localhost openssl-1.0.2f]# ./config --prefix=/usr/local/openssl
[root@localhost openssl-1.0.2f]# make
[root@localhost openssl-1.0.2f]# make install

2、查看路徑

# which openssl
/usr/local/openssl/bin/openssl

爲了使用方便，以及以後版本更新方便，可以創建軟連接，如下：

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

3、執行以下命令

[root@localhost openssl-1.0.2f]# cd /usr/local/openssl

[root@localhost openssl]# ldd /usr/local/openssl/bin/openssl
    linux-vdso.so.1 =>  (0x00007ffc63975000)
    libssl.so.1.1 => not found
    libcrypto.so.1.1 => not found
    libdl.so.2 => /lib64/libdl.so.2 (0x00007f8d9da0f000)
    libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f8d9d7f3000)
    libc.so.6 => /lib64/libc.so.6 (0x00007f8d9d431000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f8d9dc28000)

安裝OK

7、查看版本

# openssl version
/usr/local/openssl/bin/openssl: error while loading shared libraries: libssl.so.1.1: cannot open shared object file: No such file or directory

找不到動態庫libssl.so.1.1，小問題，執行如下命令：

# vim /etc/ld.so.conf

在最後追加一行：
/usr/local/openssl/lib
然後執行：

# ldconfig /etc/ld.so.conf
# openssl version
OpenSSL 1.1.0f  25 May 2017

done.