liunx upgrade ssh basic steps

Give full permissions to the upgrade package
chmod 777 openssh

Turn off selinux backup ssh configuration
chmod 777 openssh
sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
setenforce 0
cp -p /etc/ssh/sshd_config /etc/ssh/sshd_config.bak
ls

Upgrade ssh
rpm -Uvh openssh

Upgrade to allow root

./configure --prefix=/usr --sysconfdir=/etc/ssh --with-pam --with-zlib --with-md5-passwords --with-tcp-wrappers

chgrp root /etc/ssh/ssh_host_rsa_key

chgrp root /etc/ssh/ssh_host_ecdsa_key

chgrp root /etc/ssh/ssh_host_ed25519_key

chmod 600 /etc/ssh/ssh_host_rsa_key

chmod 600 /etc/ssh/ssh_host_ecdsa_key

chmod 600 /etc/ssh/ssh_host_ed25519_key
sed -i “s/PermitRootLogin no/PermitRootLogin yes/g” /etc/ssh/sshd_config
systemctl restart sshd.service

Restart the ssh service
systemctl restart sshd.service