spawn ssh -o StrictHostKeyChecking=no opsuser@8.147.119.215 opsuser@8.147.119.215's password: Welcome to Alibaba Cloud Elastic Compute Service ! Updates Information Summary: available 4 Security notice(s) 3 Important Security notice(s) 1 Moderate Security notice(s) Run "dnf upgrade-minimal --security" to apply all updates.More details please refer to: https://help.aliyun.com/document_detail/416274.html Last login: Mon Jun 22 17:54:59 2026 from 117.133.131.122 [opsuser@iZ2ze3zkrxsxjmo198xi39Z ~]$ su - root Password: Last login: Mon Jun 22 17:54:59 CST 2026 on pts/1 [root@iZ2ze3zkrxsxjmo198xi39Z ~]#