解决linux中ssh登录Warning:Permanently added (RSA) to the list of known hosts，sshpermanently

解决linux中ssh登录Warning:Permanently added (RSA) to the list of known hosts，sshpermanently

从 远程 复制文件到 到本地

# scp scp root@10.1.11.210:/root/zbdata/api-148.log-2014090412.bz2 /root/zbdata

报Warning:Permanently added (RSA) to the list of known hosts错误

原因：在执行scp 时，没在本机的/root/.ssh下生成known_hosts文件。

解决方案：
# vi /etc/ssh/ssh_config
最后有两行是
         StrictHostKeyChecking no 
         UserKnownHostsFile /dev/null
把这两行注释掉并保存文件
再次执行scp scp root@10.1.11.210:/root/zbdata/api-148.log-2014090412.bz2 /root/zbdata
出现提示

The authenticity of host '10.1.11.210 (10.1.11.210)' can't be established.
RSA key fingerprint is a0:09:89:d2:3b:aa:91:60:59:7f:7f:bc:03:31:b0:09.
Are you sure you want to continue connecting (yes/no)? 

输入yes后，则可看到在/root/.ssh目录下生成了known_hosts文件：

[root@host100 .ssh]# ls
id_rsa  id_rsa.pub  known_hosts