scp (secure copy) to ec2 instance without password

2019-01-15 23:32发布

问题:

I have an EC2 instance running (FreeBSD 9 AMI ami-8cce3fe5), and I can ssh into it using my amazon-created key file without password prompt, no problem.

However, when I want to copy a file to the instance using scp I am asked to enter a password:

scp somefile.txt -i mykey.pem root@my.ec2.id.amazonaws.com:/

Password:

Any ideas why this is happening/how it can be prevented?

回答1:

I figured it out. I had the arguments in the wrong order. This works:

scp -i mykey.pem somefile.txt root@my.ec2.id.amazonaws.com:/


回答2:

scp -i /path/to/your/.pemkey -r /copy/from/path user@server:/copy/to/path


回答3:

I've used below command to copy from local linux Centos 7 to AWS EC2.

scp -i user_key.pem file.txt ec2-user@my.ec2.id.amazonaws.com:/home/ec2-user


回答4:

scp -i ~/.ssh/key.pem ec2-user@ip:/home/ec2-user/file-to-copy.txt .

The file name shouldnt be between the pem file and the ec2-user string - that doesnt work. This also allows you to reserve the name of the copied file.



回答5:

Making siliconerockstar's comment an answer since it worked for me

scp -i kp1.pem ./file.txt ec2-user@1.2.3.4:/home/ec2-user



回答6:

lets assume that your pem file and somefile.txt you want to send is in Downloads folder

scp -i ~/Downloads/mykey.pem ~/Downloads/somefile.txt root@my.ec2.id.amazonaws.com:~/

let me know if it doesn't work



回答7:

scp -i /home/barkat/Downloads/LamppServer.pem lampp_x64_12.04.tar.gz

this will be very helpful to all of you guys



回答8:

My hadoopec2cluster.pem file was the only one in the directory on my local mac, couldn't scp it to aws using scp -i hadoopec2cluster.pem hadoopec2cluster.pem ubuntu@serverip:~.

Copied hadoopec2cluster.pem to hadoopec2cluster_2.pem and then scp -i hadoopec2cluster.pem hadoopec2cluster_2.pem ubuntu@serverip:~. Voila!



回答9:

I was hung up on this because I was specifying my public key file in

scp -i [private key file path]

When I caught that mistake and changed it to the private key path instead, I was all set.



回答10:

write this code

scp -r -o "ForwardAgent=yes" /Users/pengge/11.vim root@192.168.2.228:/root/

If you have a SSH key with access to the destination server and the source server does not, adding -o "ForwardAgent=yes" will allow you to forward your SSH agent to the source server so that it can use your SSH key to connect to the destination server.



回答11:

In your case, the user root won't have any issues. But in certain cases where you're required to login under SSH as a different user, make sure the directory you're scp-ing has adequate permissions for the user you're SSH-ing.



回答12:

Just tested:

Run the following command:

sudo shred -u /etc/ssh/*_key /etc/ssh/*_key.pub

Then:

  1. create ami (image of the ec2).
  2. launch from new ami(image) from step no 2 chose new keys.