zlib-1.2.11.tar.gz

openssl-1.1.1g.tar.gz

openssh-8.6p1.tar.gz

备份：

cp /etc/ssh/ /etc/ssh_bak

cp /etc/init.d/sshd  /etc/init.d/sshd.bak

cp /etc/pam.d/sshd  /etc/pam.d/sshd.bak

cp /usr/sbin/sshd /usr/sbin/sshd.bak

cp /usr/bin/ssh /usr/bin/ssh.bak

安装编译器

yum install gcc  

卸载旧ssh

rpm -qa | grep openssh | xargs rpm -e --nodeps

安装zlib

cd zlib-1.2.11

./configure --prefix=/usr/local/zlib

make && make install

安装ssl

cd openssl-OpenSSL_1_1_1k

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

make && make install

echo '/usr/local/openssl/lib' >> /etc/ld.so.conf

ldconfig -v

安装openssh

cd openssh-8.6p1

./configure --prefix=/usr/local/openssh --sysconfdir=/etc/ssh --with-zlib=/usr/local/zlib --with-ssl-dir=/usr/local/openssl --with-pam=enable

make && make install

复制文件

cp /usr/local/openssh/sbin/sshd /usr/sbin/sshd

cp /usr/local/openssh/bin/ssh /usr/bin/ssh

cp /usr/local/openssh/bin/ssh-keygen /usr/bin/ssh-keygen

cd openssh-8.6p1

cp contrib/redhat/sshd.init /etc/init.d/sshd

chkconfig --add sshd

chkconfig sshd on

chkconfig --list|grep sshd

启动ssh

servvice sshd start

servvice sshd status

查看版本

ssh -V