自己公司升級使用的大致步驟
cd /usr/local/src/
tar xf openssl-1.0.2n.tar.gz
cd openssl-1.0.2n
./config --prefix=/usr --shared
make && make install
cd /usr/local/src/
tar xf openssh-7.6p1.tar.gz
cd openssh-7.6p1
cp /etc/pam.d/sshd /home/shadm1/
rpm -e --nodeps `rpm -qa | grep openssh`
./configure --prefix=/usr --sysconfdir=/etc/ssh --without-zlib-version-check --with-ssl-dir=/usr/bin/openssl --with-pam --with-zlib --mandir=/usr/share/man --with-md5-passwords
make && make install
cp contrib/redhat/sshd.init /etc/init.d/sshd
cd /etc/ssh/
chmod 600 ssh_host_ecdsa_key ssh_host_ed25519_key ssh_host_rsa_key
echo UsePAM yes >>/etc/ssh/sshd_config
echo UseLogin yes >>/etc/ssh/sshd_config
cp /home/shadm1/sshd /etc/pam.d/
service sshd restart
chkconfig sshd on