ssh免密登录

最新推荐文章于 2025-12-27 15:35:24 发布

原创最新推荐文章于 2025-12-27 15:35:24 发布 · 151 阅读

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一、修改主机名

#修改主机名
vi /etc/hostname

229:
vi /etc/hostname
bigdata229
vi /etc/hosts
172.16.104.229 bigdata229
172.16.104.228 bigdata228
172.16.104.225 bigdata225

228:
vi /etc/hostname
bigdata228
vi /etc/hosts
172.16.104.229 bigdata229
172.16.104.228 bigdata228
172.16.104.225 bigdata225

225:
vi /etc/hostname
bigdata225
vi /etc/hosts
172.16.104.229 bigdata229
172.16.104.228 bigdata228
172.16.104.225 bigdata225

二、配置ssh免密登录

ssh-keygen -t rsa

ll ~/.ssh

cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

chmod 755 ~
chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_keys

ssh -Version

ssh bigdata229

******************************************

229:
scp ~/.ssh/authorized_keys bigdata228:~/
228:
cat ~/authorized_keys >> ~/.ssh/authorized_keys

229:
scp ~/.ssh/authorized_keys bigdata225:~/
225:
cat ~/authorized_keys >> ~/.ssh/authorized_keys