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  • Linux生成key

    [root@centos7 ~]# ssh-keygen -b [ 2048 -t rsa  #这里的-b 2048 是密钥加密的长度,最好设大点
    Generating public/private rsa key pair.
    Enter file in which to save the key (/root/.ssh/id_rsa): 
    /root/.ssh/id_rsa already exists.
    Overwrite (y/n)? y
    Enter passphrase (empty for no passphrase): 
    Enter same passphrase again: 
    Your identification has been saved in /root/.ssh/id_rsa.
    Your public key has been saved in /root/.ssh/id_rsa.pub.
    The key fingerprint is:
    SHA256:TydATlOwdC66CUu6o7thGHI1ZwXnaCqsDOuDKtthx3k root@centos7.magedu.com
    The key's randomart image is:
    +---[RSA 2048]----+
    |      ..Ooo      |
    |       X =       |
    |    o = * .      |
    | . . * . o       |
    |+ + + . S o .    |
    |== = + o o o     |
    |*o+ = E   .      |
    |==.+ .           |
    |O*+.             |
    +----[SHA256]-----+
    [root@centos7 ~]# cd /root/.ssh  #key文件会保存在/root/.ssh目录下
    [root@centos7 ~/.ssh]# ls
    authorized_keys  id_rsa (#私钥文件)  id_rsa.pub)(#公钥文件,这个文件里的内容要放到其它主机里面去。)
    known_hosts
    [root@centos7 ~/.ssh]# cat id_rsa.pub ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDRbiHp1QZqiQdP+sCX9LuZutfLmDbJ6WFCW1kaHp2WtGtvBgI zsxA0LKglJKXdy2B/lUXXYQrpaNV2gT4fJDHAUFwq6NszUSwF2/6mW0T4lEt2SIWEVpbinYrmDxi0khgjuvzwcC VButqtjUCJbE6Cg0Lc+0PS5Jha+QyCdKiOmCBKJlSdT5do9HEOdmhU96/jV+Km+h0mJBdTwS3JxcYrZoFCJBDpQ ucs+gZSJvSwgSO57iZYoJHRiOfRzqVuE5PDbMf6bCaQ2yOoGOH/nWNqttozScEIcSsWbxTtPpIqVtmNwFhCy7Vg O7sX+98iubPzGG7+PAiT1wbWtOIfpnWz root@centos7.magedu.com
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  • 原文地址:https://www.cnblogs.com/yaun1498078591/p/9878990.html
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