(新手帖!大神勿喷)
作为运维人员 经常会用到 ssh-copy-id
在使用ssh-copy-id的时候最有可能碰到的一个问题就是ssh报错:
/usr/bin/ssh-copy-id: ERROR: No identities found
下面将我配置的给大家贴上 然后再说这个报错
[postgres@db1 ~]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/postgres/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/postgres/.ssh/id_rsa.
Your public key has been saved in /home/postgres/.ssh/id_rsa.pub.
The key fingerprint is:
42:25:97:b5:cc:1d:88:d8:47:d0:ad:b9:b2:b4:1b:22 postgres@db1
备注:敲入这个ssh-keygen -t rsa命令后一路回车就行 不用设置其他 如果设置了连接的时候可能会报错上面这个错误,因为当时我设置了 系统将我的公钥,私钥直接放在了、/home/postgres 下面 而不是/home/postgres/.ssh里面 创建完直接vi /home/postgres/.ssh就能看见你的公钥和私钥了。
接下来就是连接
[postgres@db1 ~]$ ssh-copy-id [email protected]
/usr/bin/ssh-copy-id: ERROR: No identities found
这个命令有时候也会报着个错误。
换成
ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected] 即可
但是!!!键入命令后提示(如果你没有跳出这个提示,请跳过这个步骤直接下一步)
reverse mapping checking getaddrinfo for bogon failed - POSSIBLE BREAK-IN ATTEMPT!
这个时候在你的直接 vi /etc/hosts 在里面添加
[root@db1 ~]# vi /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 db1 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
192.168.128.128 db1
192.168.128.129 db2
~
保存退出。
完了之后重新连接即可
[postgres@db1 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]
30
[email protected]'s password: (这个地方要输入要连接的用户的密码)
Now try logging into the machine, with "ssh '[email protected]'", and check in:
.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.
[postgres@db1 ~]$ ssh [email protected]
Last login: Mon Aug 31 22:16:08 2015 from 192.168.128.128
[postgres@db2 ~]$ exit
logout