CentOS 7.4 升级openssh

1. 下载源码包

wget http://mirror.aarnet.edu.au/pub/OpenBSD/OpenSSH/portable/openssh-7.9p1.tar.gz
tar -zxvf openssh-7.9p1.tar.gz

2. 安装

yum install gcc openssl-devel zlib-devel
cd openssh-7.9p1
./configure
make && make install

3. 配置

cp ./contrib/redhat/sshd.init /etc/init.d/sshd
chmod +x /etc/init.d/sshd
# 修改配置文件
cp sshd_config /etc/ssh/sshd_config
vim /etc/ssh/sshd_config
PermitRootLogin yes

# 修改启动文件
vim /etc/init.d/sshd
SSHD=/usr/sbin/sshd 为 SSHD=/usr/local/sbin/sshd
/usr/sbin/ssh-keygen -A 为 /usr/local/bin/ssh-keygen -A
在 "$SSHD $OPTIONS && success || failure"这一行上面加上一行 OPTIONS="-f /etc/ssh/sshd_config"

4. 重启服务

service sshd start