modified:   newInstall/hostname/hostname.sh

Signed-off-by: kangliang.zkl <kangliang.zkl@alibaba-inc.com>
modified:   newInstall/20sync.sshInOld.sh; new file:   newInstall/50sync.sshInOld.sh

Signed-off-by: kangliang.zkl <kangliang.zkl@alibaba-inc.com>