CentOS 7升级openssl与openssh的详细教程

http://www.zlib.net/
zlib-1.2.11.tar.gz
https://openbsd.hk/pub/OpenBSD/OpenSSH/portable/
openssh-7.5p1.tar.gz
https://www.openssl.org/source/
[root@centos7 ~]# setenforce 0
[root@centos7 ~]# vim /etc/selinux/config
[root@centos7 ~]# yum groupinstall "development tools"
[root@centos7 ~]# yum install pam pam-devel -y
[root@centos7 ~]# ls
anaconda-ks.cfg  initial-setup-ks.cfg  openssh-7.5p1.tar.gz  openssl-1.0.2l.tar.gz  zlib-1.2.11.tar.gz
[root@centos7 ~]# tar -zxf zlib-1.2.11.tar.gz 
[root@centos7 ~]# cd zlib-1.2.11/
[root@centos7 zlib-1.2.11]# ./configure
[root@centos7 zlib-1.2.11]# make
[root@centos7 zlib-1.2.11]# make install
[root@centos7 ~]# tar -zxf openssl-1.0.2l.tar.gz 
[root@centos7 ~]# cd openssl-1.0.2l/
[root@centos7 openssl-1.0.2l]# ./config --prefix=/usr shared zlib
[root@centos7 openssl-1.0.2l]# make
[root@centos7 openssl-1.0.2l]# make install
[root@centos7 openssl-1.0.2l]# echo "/usr/local/lib">>/etc/ld.so.conf
[root@centos7 openssl-1.0.2l]# ldconfig -v | grep ssl
[root@centos7 openssl-1.0.2l]# openssl version
OpenSSL 1.0.2l  25 May 2017
[root@centos7 ~]# tar -zxf openssh-7.5p1.tar.gz 
[root@centos7 ~]# cd openssh-7.5p1/
[root@centos7 openssh-7.5p1]# ./configure --prefix=/usr --sysconfdir=/etc/ssh --with-pam --with-zlib --with-md5-passwords
[root@centos7 openssh-7.5p1]# make
[root@centos7 openssh-7.5p1]# make install