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pssh批量管理linux主机（少量）-ICT小白鼠
source link: https://blog.51cto.com/11442747/2508074
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在实际生产环境中，经常会涉及到批量管理linux主机的情况，像主机较多的情况下，可以使用ansible、Saltstack、puppet这些专业的工具，但是pssh的轻便、并行可以适用主机较少的情况下一、安装前准备设置主机间的ssh-key秘钥认证访问1.登录管理机器创建秘钥ssh-keygen2.将公钥拷贝到其他需要管理的主机ssh-copy-id-i/root/.ssh/id_rsa.pub-
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