问题描述
我想用我的Amazon EC2实例,但面临以下错误:
I want to use my Amazon ec2 instance but faced the following error:
Permission denied (publickey).
我已经创建了我的密钥对和下载质子交换膜文件。
由于:
chmod 600 pem file.
然后,此命令
Then, this command
ssh -i /home/kashif/serverkey.pem [email protected]
不过,有这样的错误:
But have this error:
Permission denied (publickey)
此外,我怎么能与FileZilla的连接上传/下载文件?
Also, how can I connect with filezilla to upload/download files?
推荐答案
此错误消息意味着你无法验证。
This error message means you failed to authenticate.
这些都是常见的原因,可能会导致:
These are common reasons that can cause that:
- 在试图与错键连接。你确定这个实例使用该密钥对?
- 在试图用错误的用户名进行连接。
的Ubuntu
是用户名Ubuntu的基于AWS分布,但对另一些人是EC2用户
(或管理
一些Debians,根据波格丹Kulbida的答案)(也可以是根
,的Fedora
,见下文) - 在尝试连接错误的主机。是正确的主机,你正在试图登录?
- Trying to connect with the wrong key. Are you sure this instance is using this keypair?
- Trying to connect with the wrong username.
ubuntu
is the username for the ubuntu based AWS distribution, but on some others it'sec2-user
(oradmin
on some Debians, according to Bogdan Kulbida's answer)(can also beroot
,fedora
, see below) - Trying to connect the wrong host. Is that the right host you are trying to log in to?
注意 1
也会发生,如果你搞砸了 /家庭/<用户名> / SSH / authorized_keys中
您的EC2实例文件。
Note that 1.
will also happen if you have messed up the /home/<username>/.ssh/authorized_keys
file on your EC2 instance.
关于 2
,哪些用户名应该使用往往是从AMI图片说明缺乏信息。但是你可以找到一些在AWS EC2文档,圆点 4
:http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AccessingInstancesLinux.html
About 2.
, the information about which username you should use is often lacking from the AMI Image description. But you can find some in AWS EC2 documentation, bullet point 4.
:http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AccessingInstancesLinux.html
使用ssh命令连接到该实例。你会指定私钥(质子交换膜)文件,用户名@ public_dns_name。对于Amazon Linux中,用户名为EC2用户。对于RHEL5,用户名称是根或 EC2用户。对于Ubuntu的,用户名是的Ubuntu 。对于Fedora的,用户名可以是的Fedora 或 EC2用户。对于SUSE Linux,用户名是根。否则,如果EC2用户和根不工作,请与您的AMI供应商。
最后,要知道,还有很多其他的原因,身份验证会失败。 SSH通常是pretty的明确一下,如果你愿意的 -v
选项添加到您的SSH命令,并读取输出,因为在许多其他的答案来解释什么地方出了错这个问题。
Finally, be aware that there are many other reasons why authentication would fail. SSH is usually pretty explicit about what went wrong if you care to add the -v
option to your SSH command and read the output, as explained in many other answers to this question.
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