ssh -V
cp -a /etc/ssh/sshd_config /etc/ssh/sshd_config.bak
yum remove openssh-* -y
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make -y #安装依赖
tar xzf openssh-8.8p1.tar.gz
cd openssh-8.8p1
./configure --prefix=/usr --sysconfdir=/etc/ssh --with-md5-passwords --with-privsep-path=/var/lib/sshd #配置
make & make install #编译安装
ssh -V
cp -p contrib/redhat/sshd.init /etc/init.d/sshd #拷贝启动文件
chkconfig --add sshd #添加自启动
chkconfig sshd on #开机自启动
chkconfig --list sshd #查看自启动
#官网介绍需要新版本算法更新，需要新增两个配置项，之前配置的密钥才能正常登录
vim /etc/ssh/sshd_config
HostkeyAlgorithms +ssh-rsa
PubkeyAcceptedAlgorithms +ssh-rsa
systemctl restart sshd #重启
