Openssh7.4升级步骤
#第一步安装GCC工具 (有yum源最好,直接yum gcc和pam)
rpm -ivh libmpc-1.0.1-3.el7.x86_64.rpmrpm -ivh cpp-4.8.2-16.el7.x86_64.rpmrpm -ivh gcc-4.8.2-16.el7.x86_64.rpmrpm -ivh pam-devel-1.1.8-9.el7.x86_64.rpm#第二步安装zlib-1.2.8.tar.gztar -xvf zlib-1.2.8.tar.gzcd zlib-1.2.8./configuremakemake install#验证查看ll /usr/local/lib#第三步安装Openssl-fipstar -xvzf openssl-fips-2.0.12.tar.gzcd openssl-fips-2.0.12/./configmakemake install#第四步安装openssl-1.0.2c.tar.gztar -xvzf openssl-1.0.2c.tar.gzcd openssl-1.0.2c/./configmakemake install#第五步安装openssh-7.4.p1tar -xvzf openssh-7.4p1.tar.gzcd openssh-7.4p1./configure --prefix=/usr --sysconfdir=/etc/ssh --with-md5-passwords --with-pam --with-tcp-wrappers --with-ssl-dir=/usr/local/ssl --without-hardeningmakemake installcp /root/scripts/openssh/openssh-7.4p1/ssh_config /etc/ssh/ssh_configcp /root/scripts/openssh/openssh-7.4p1/sshd_config /etc/ssh/sshd_configcd /root/scripts/openssh/openssh-7.4p1/contrib/redhatpwd/root/scripts/openssh/openssh-7.4p1/contrib/redhat####以下操作注意路径mv /etc/init.d/sshd /etc/init.d/sshd20170320cp sshd.init /etc/init.d/sshdchmod u+x /etc/init.d/sshdchkconfig --add sshd> ~/.ssh/>.ssh/known_hostsservice sshd restart升级后要关闭selinux 否则连接报错permission deny##注意: 升级后的版本需要用最新版本的远程连接工具才能进行连接,比如putty0.68。