javaxuss的专栏

vi /etc/ssh/sshd_configvi /etc/ssh/sshd_config.d/50-redhat.confvi /etc/crypto-policies/back-ends/opensshserver.configPubkeyAcceptedAlgorithms ecdsa-sha2-nistp256,ecdsa-sha2-nistp256-cert-v01@openssh.com,sk-ecdsa-sha2-nistp256@openssh.com,sk-ecdsa-sha2-nist

root@localhost ~]# hostname# 查看主机名[root@localhost ~]# hostname oracledb# 修改主机名[root@localhost ~]# vim /etc/hosts# 修改hosts。