【发布时间】：2017-12-20 21:08:33
【问题描述】：
我安装了 instagram ec2-ssh 实用程序，如下所述：http://instagram-engineering.tumblr.com/post/11399488246/simplifying-ec2-ssh-connections。
ec2-host 运行良好，并列出了主机。例如：
legolas ec2-xx.xx.xx.xx.us-west-1.compute.amazonaws.com
但是，当我尝试通过名称登录时，出现错误：
[root@ip-xx.xx.xx.xx ec2-user]# ec2-ssh legolas
Connecting to send: 'POST / HTTP/1.1\r\nAccept-Encoding: identity\r\nContent-Length: 93\r\nUser-Agent: Boto/2.35.1 Python/2.6.9 Linux/3.14.27-25.47.amzn1.x86_64\r\nHost: ec2.us-west-1.amazonaws.com\r\nX-Amz-Date: 20150216T182656Z\r\nContent-Type: application/x-www-form-urlencoded; charset=UTF-8\r\nAuthorization: AWS4-HMAC-SHA256 Credential=AKIAxxx/20150216/us-west-1/ec2/aws4_request,SignedHeaders=host;x-amz-date,Signature=xxx\r\n\r\n'
send: 'Action=DescribeInstances&Filter.1.Name=tag%3AName&Filter.1.Value.1=legolas&Version=2014-10-01'
reply: 'HTTP/1.1 200 OK\r\n'
header: Content-Type: text/xml;charset=UTF-8
header: Transfer-Encoding: chunked
header: Vary: Accept-Encoding
header: Date: Mon, 16 Feb 2015 18:26:55 GMT
header: Server: AmazonEC2
ec2-xx.xx.xx.xx.us-west-1.compute.amazonaws.com.
ssh: Could not resolve hostname send:: Name or service not known
sh: line 1: send:: command not found
sh: line 2: reply:: command not found
sh: line 3: header:: command not found
sh: line 4: header:: command not found
sh: line 5: header:: command not found
sh: line 6: header:: command not found
sh: line 7: header:: command not found
sh: line 8: ec2-xx.xx.xx.xx.us-west-1.compute.amazonaws.com: command not found
【问题讨论】：
-
我想第一个明显的问题是：legolas 是否有一个安全组，其传入端口 22 为 SSH 开放？
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@monkeymatrix - 是的，如果我只是 ssh 到主机名，它就可以工作，就像
ssh ec2-user@ec2-xx.xx.xx.xx.us-west-1.compute.amazonaws.com -
好的。看起来错误是主机名无法解析。您运行它的机器上的端口 53 是否打开以允许它进行 DNS 查找？
标签： amazon-web-services ssh amazon-ec2