无法连接到aws机器:操作超时

Question

我是AWS新手并且正确创建了密钥对

@air~/.ec2 - 14:25:10$ ec2-add-keypair mykey > mykey.pem  

并使用相同的密钥运行实例

@air~/.ec2 - 14:25:15$ec2-run-instances ami-a29243cb -k mykey -t t1.micro  

当我尝试连接到机器时,我看到了

@air~/.ec2 - 14:25:22$ ssh  -v -i mykey.pem ec2-user@ec2-21-20-42-115.compute-1.amazonaws.com
OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: Applying options for *
debug1: Connecting to ec2-user@ec2-21-20-42-115.compute-1.amazonaws.com [21.20.42.185] port 22.
ssh: connect to host ec2-user@ec2-21-20-42-115.compute-1.amazonaws.com port 22: Operation timed out

我甚至试过root@ec2-21-20-42-115.compute-1.amazonaws.com但没有运气

我怎样才能解决这个问题？

Answer 1

这已经解决了.

原因

• 安全组是默认值而不是我创建的.用命令修复

ec2-run-instances ami-a29243cb -k mykey -t t1.micro -g worker

• 以ubuntu而不是ec2-user登录

ssh -v -i~/.ec2/mykey.pem ubuntu@ec2-13-24-2-39.compute-1.amazonaws.com

它就像一个魅力:)