ChatGPT解决这个技术问题 Extra ChatGPT

Using scp to copy a file to Amazon EC2 instance?

I am trying to use my Mac Terminal to scp a file from Downloads (phpMyAdmin I downloaded online) to my Amazon EC2 instance.

The command I used was:

scp -i myAmazonKey.pem phpMyAdmin-3.4.5-all-languages.tar.gz  hk22@mec2-50-17-16-67.compute-1.amazonaws.com:~/.

The error I got: Warning: Identity file myAmazonKey.pem not accessible: No such file or directory. Permission denied (publickey). lost connection

Both my myAmazonkey.pem and phpMyAdmin-3.4.5-all-languages.tar.gz are in Downloads, so then I tried

scp -i /Users/Hello_Kitty22/Downloads/myAmazonKey.pem /Users/Hello_Kitty22/Downloads/phpMyAdmin-3.4.5-all-languages.tar.gz  hk22@mec2-50-17-16-67.compute-1.amazonaws.com:~/.

and the error I got: Warning: Identity file /User/Hello_Kitty22/Downloads/myAmazonkey.pem not accessible: No such file or directory. Permission denied (publickey). lost connection

Can anyone please tell me how to fix my problem?

p.s. there is a similar post: scp (secure copy) to ec2 instance without password but it doesn't answer my question.

I feel like when I start my Amazon instance online, I cannot access my local files in Downloads any more

W
W.P. McNeill

Try specifying the user to be ec2-user, e.g.

scp -i myAmazonKey.pem phpMyAdmin-3.4.5-all-languages.tar.gz ec2-user@mec2-50-17-16-67.compute-1.amazonaws.com:~/.

See Connecting to Linux/UNIX Instances Using SSH.


works great. Note that your user default user may be "ubuntu" if you are running a ubuntu instance.
of course copying to / may not work. Thanks for enlightening!
@DanielDropik I don't know if you're joking or not... but :/ would try copy the folder to the root of the system, which would give permission errors on all machines without running sudo (or as root).
why it saying Please login as the user "ubuntu" rather than the user "root". what i need to do for copy
in my case i was using the user but , the difference i add the public dns mec2-50-17-16-67.compute-1.amazonaws.com instead of a domain name
S
Syed Priom

second directory is your target destination, don't use server name there. In other words, you don't need to mention machine name for the machine you're currently in.

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

-r if it's a directory.


Thank you so much for this. It was the only solution that worked for me.
scp -i "xyz.pem" -r file_xyz.zip user@server.region.compute.amazonaws.com:/path/
W
Walter Tross

Your key must not be publicly viewable for SSH to work. Use this command if needed:

chmod 400 yourPublicKeyFile.pem

You saved my day brother
D
DV Dasari

You should be on you local machine to try the above scp command.

On your local machine try:

scp -i ~/Downloads/myAmazonKey.pem ~/Downloads/phpMyAdmin-3.4.5-all-languages.tar.gz  hk22@mec2-50-17-16-67.compute-1.amazonaws.com:~/.

F
Forrest

Here are the details of what works for an EC2 instance:

scp -i /path/to/whatever.pem /users/me/path-to-file ec2-user@ec2-55-55-555-555.compute-1.amazonaws.com:~

Few notes for beginning:

Note the spaces between the three parameters given after the -i scp stands for secure copy protocol. Knowing the words makes it easier to remember the command. -i dictates that you need to give the .pem file as the next param. If there is no -i, than you do not need a .pem. Note the :~ at the end of the destination for the EC2 instance.


M
Mustafa Kahraman

I had exactly same problem, my solution was to

scp -i /path/pem -r /path/file/ ec2-user@public aws dns name: (leave it blank here)

once you done this part, get into ssh server and mv file to desired location


V
Viraj Wadate

Send file from Local to Server:

scp -i .ssh/awsinstance.pem my_local_file ubuntu@XX.XXX.XXX.XXX:/home/ubuntu

Download file from Server to Local:

scp -i .ssh/awsinstance.pem ubuntu@XX.XXX.XXX.XXX:/home/ubuntu/server_file .


How do you know what your ubuntu@XX.XXX.XXX.XXX is? I'm using Windows though
P
Paul Roub

This just worked for me. I used a combination of two other answers to this question.

scp -i /Users/me/documents/myKP.pem -r /Users/me/desktop/testDir \
       ec2-user@ec2-11-111-11-11.compute-1.amazonaws.com:/home/ec2-user/remoteDir

The "ec2-user@ec2-11-111-11-11.compute-1.amazonaws.com" is copy-and-pasted from your ec2 instance's public DNS.


This worked for me while the other answers for some reason had no effect. Not sure what the problem was. Ubuntu 20.04 to ubuntu 20.04.
P
Prasad Khode
scp -i ~/path to pem file/file.pem -r(for directory) /PATH OF LOCAL/localfile user@hostname:PATH OF SERVER/serverdirectory

V
Vatsal Shah

Below SCP format works for me

scp -i /path/my-key-pair.pem ec2-user@ec2-198-51-100-1.compute-1.amazonaws.com:~/SampleFile.txt ~/SampleFile2.txt

SampleFile.txt: It will be the path from your root directory(In my case, /home/ubuntu). in my case the file which I wanted to download was at /var/www

SampleFile2.txt: It will be path of your machine's root path(In my case, /home/MyPCUserName)

So, I have to write below command

scp -i /path/my-key-pair.pem ec2-user@ec2-198-51-100-1.compute-1.amazonaws.com:~/../../var/www/Filename.zip ~/Downloads

U
Umar Asghar

Public DNS scp -i /path/my-key-pair.pem /path/my-file.txt ec2-user@my-instance-public-dns-name:path/ (IPv6) scp -i /path/my-key-pair.pem /path/my-file.txt ec2-user@\[my-instance-IPv6-address\]:path/


works for me, lol, i actually use ~/path to target that
b
blackHoleDetector

The process of using SCP to copy files from a local machine to an AWS EC2 Linux instance is covered step-by-step (including the points mentioned below) in this video.

To correct this particular issue with using SCP:

You need to specify the correct Linux user. From Amazon: For Amazon Linux, the user name is ec2-user. For RHEL, the user name is ec2-user or root. For Ubuntu, the user name is ubuntu or root. For Centos, the user name is centos. For Fedora, the user name is ec2-user. For SUSE, the user name is ec2-user or root. Otherwise, if ec2-user and root don't work, check with your AMI provider. Your private key must not be publicly visible. Run the following command so that only the root user can read the file. chmod 400 /path/to/yourKeyFile.pem


S
Shashwat Gupta

SCP Commend

Send File from Local To Remote Server

sudo scp -i ../Downloads/new_bb_key.pem ./dump.zip ubuntu@13.127.124.129:~/.

Send File from Remote Server To Local

sudo scp -i ~/Downloads/new_bb_key.pem ubuntu@13.127.124.129:/home/ubuntu/LatestDBdump.zip Downloads/


B
Bryan Stenson

Check the permissions on the .pem file...openssh usually doesn't like world-readable private keys, and will fail (iir, scp doesn't do a great job of providing this feedback to the user).

Can you simply ssh with that key to your AWS host?


Yes, I can ssh with that key to my AWS host. In fact, the problem I am having is, I am on the Amazon host (through ssh), so when I do cd, I can only see the files on my Amazon server, not my local Mac Downloads directory where I saved my pem file. I can only cd to my local Mac Downloads directory when I exit my ec2 host. But if I exit to my ec2 host, I couldn't upload the file phpMyAdmin to my ec2 server. My pem's permission is 400, I think that's fine.
Thank you very much for the help, I found my problem by the last question you asked. It seems I can either ssh or scp, not two together.
thanks for the hint hellokitty22. I had two terminals open one for ssh and one for scp too.
S
Shravan40

First you should change the mode of .pem file from read and write mode to read only mode. This can be done just by a single command in terminal sudo chmod 400 your_public_key.pem


M
Marie D.

I tried all the suggestions mentioned above and nothing worked. I terminated the current instance, launched another one and repeated the same exact process. This time no problems. Sometimes it might be the remote ami's fault.


T
Tawseef Bhat

try to use this command

if your instance is using ubuntu

scp -i myAmazonKey.pem phpMyAdmin-3.4.5-all-languages.tar.gz  ec2-user@mec2-50-17-16-67.compute-1.amazonaws.com:~/.

you can get more info about your instance from here https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/connection-prereqs.html


k
karthikr

I would use:

scp -i "path to .pem file" "file to be copeide from local machine" username@amazoninstance: 'destination folder to copy file on remote machine'