Ssh Works Then Permission Denied Please Try Again

In my view "SCP permission denied" fault, is the most mutual error in the world of Linux. So, whether you are Linux admin or newbie, Every one of us would have encountered this error. At least, once in a lifetime, that I can bet.

As a Linux user for many years. I have faced this consequence during SCP and SSH operations. And then I am sure, if yous will land on this page, yous will get the solution to all your "permission denied error in Linux". Below mentioned are the samples of a few errors, y'all more often than not encounter. I am sure, at least one of the 9 solutions provided in this post volition help you to resolve these problems.

• SCP permission denied
• SCP permission denied (publickey)
• Saving key ".ssh/id_rsa" failed: permission denied when SCP
• SCP permission denied ec2
• SCP permission denied AWS
• SCP permission denied, delight try again
• SCP permission denied (publickey gssapi-keyex gssapi-with-mic)
• SCP permission denied (publickey). lost connection

Earlier explaining anything, Permit me tell yous all these problems occurs during file copy using SCP. And so let'due south empathise nigh SCP utility first -

What is SCP file transfer?

SCP stands for Secure re-create. This program helps in copying a file or folder betwixt two computers securely, whether local or remote. information technology uses SSH (secure beat) protocol in background. Additionally, The data and countersign are encrypted to secure sensitive data.

Using scp, y'all have pick of file or directory copy between -

• Local to the local arrangement
• Remote system to local organization
• Local organisation to remote organisation
• Local system to AWS EC2 case

How do you SCP?

At that place are a lot of options and switches to employ with SCP command. Let me evidence you lot some basic commands, just to requite you some understanding of SCP.

SCP syntax:-

$            scp [-346BCpqrTv] [-c cipher] [-F ssh_config] [-i identity_file] [-l limit] [-o ssh_option] [-P port] [-S program] [[user@]host1:]file1 … [[user@]host2:]file2          

• Visit scp human being page for more information on options or syntax.

$            human scp          

How to Copy local files to remote host with SCP

$            scp file user@host:path          

Host :- can exist IP address or hostname of remote organisation

: (colon) :- helps scp to identify remote host

Username:- on remote host

SSH cardinal or countersign :- is required to copy file using scp

Path :- Accented or relative path for local file or directory

For example -

$            scp test.txt user1@ubuntu:/tmp          

Copy Remote file to local host

$            scp user@host:file path          

How to Re-create directories to local host using SCP

$            scp -r user@host:directory_path path          

Copy file between two remote hosts

$            scp  user1@host1:file1.txt user2@host1:directory_path          

Now when yous know, what are basic scp commands. Fourth dimension to know about public key authentication-

SCP requires a password to authenticate to the remote arrangement. Just in example you want to avoid information technology or using SCP in scripts, Public key is required.

Basically, you lot generate a public-private primal pair on the customer (local) and re-create the public key to a remote system (server) into the authorized cardinal.

To make you understand scp commands hands, i have shared my LAB details

Lab setup details -

Local server name - Server1 (Ubuntu 18.04)

Remote server proper name - Server2 (Ubuntu xx.04)

Source file - /examination/file1.txt

Target directory - /remote-test

username - dev

SCP permission denied result

Scenario1-

I am trying to re-create /test/file1.txt from server1 (local) to server2 (remote) in /remote-test directory. I am also getting permission denied.

$            scp "local-file" "user@remote-host:/path-to-remote-dir"          

Reference output

To resolve these error - perform below mentioned steps-

Solution i :- Double check your user and countersign

Please make certain, you have mentioned right username and password in the command. This is one of the very bones mistakes, nosotros do. So, you lot tin try writing your password in notepad, copy and paste it in command prompt. When asked during SCP command.

i take validated username and password is correct in my case.

Solution ii :- Check for remote path

Brand sure, the path you have mentioned as the remote directory is correct. For case, in my case /remote-exam is the remote directory and it'due south correct.

Solution 3 :- Check for Read write admission on remote directory

Double-check, whether your user mentioned in control take read-write (RW) access on the remote directory. For example, in my example " /remote-dir " must-have RW access to user "dev".

Follow these steps to check -

-> Login to remote system (server2)

-> Run "ls" -ld command to check permissions of /remote-dir .

            $ ls -ld "your-remote-dir"          

Reference output

So, if you will see in image, /remote-dir only allows read, write and execute (rwx) permission to root user only. For group and others, it has read and execute (r-x) permission. And then my user "dev" will be treated every bit other, and it won't be able to write. As a result, I am getting SCP permission denied error.

-> At present to resolve this error, assign Read-write-execute (rwx) permission to everyone.

$ sudo chmod 777 "path-to-your-remote-directory"

Reference output

-> Run scp command over again

Alert

Setting 777 permission on whatever directory is not secure. And so once you are able to isolate the "SCP permission denied" result. Either change ownership and set permission to 755.

If you lot are still facing permission denied error, move to next step

Solution 4 :- buying issues (directory should exist owned by user)

-> Login to your remote arrangement (server2)

-> Modify buying of your remote directory for your user. For example, I will change ownership of /remote-dir to my user "dev" instead of "root".

$            sudo chown -R dev:dev "path to your remote directory"          

Reference output

-> Run scp command and it must piece of work for y'all

Solution 5 :- Diagnose problem with scp -5 control

Try to use -v (verbose) option to diagnose the result with scp command.

For example

$ scp -five /exam/file1.txt dev@192.168.126.129:/remote-dir            output truncated -            debug1: Sending environment.  debug1: Sending env LANG = en_IN  debug1: Sending command: scp -five -t /remote-dir  Sending file modes: C0644 0 file1.txt  Sink: C0644 0 file1.txt  scp: /remote-dir/file1.txt:            Permission denied          

Check message after scp -5 -t command, if information technology shows permission denied, Follow solution 3 or 4 equally described in the postal service. it will resolve your outcome.

Solution vi :- Validate option -P is used for port not -p

When running SCP command Option -P is used to mention custom port, in example default port TCP 22 is non used. Sometimes, instead of -P, we use -p (lowercase) by error. For amend understanding let me tell y'all the divergence between these two -

• -p (lowercase):- Preserve access, modification and modes from the original file.
• -P (uppercase):- Specified customize port to connect remote host.

For example port 2314 is custom port instead of 22.

$ scp -P 2314  dev@192.168.126.129:/remote-dir/file1.txt /exam/

SCP permission denied (publickey) - AWS EC2 example

Scenario 2-

Endeavor below mentioned solution, in case of SCP permission denied (publickey) with AWS ec2 instance -

If you have ready countersign-less hallmark or yous have permission key with you lot to authenticate remote system, you may come across this fault.

Have a check from Solution ane-6 mentioned in the post, if it doesn't help motion further -

Solution vii :- Use -i option and provide ".pem" individual key always

When yous use SCP and don't use -i pick. Information technology uses default ssh key under (~/.ssh/) directory. So e'er use -i option and provide the path to ".pem" key file.

For example "ubuntu.pem" is key file in my case.

            $ scp -i ~/Desktop/ubuntu.pem ~/Desktop/examination/code/world wide web/index.html dev2@server:/var/www          

Solution 8 :- if using permission central SSH is working but not SCP

If you lot are able to ssh to the remote host using -i choice and not able to scp. It means you are striking a issues.

So instead of using -i "path to .pem file"

            $ scp -i ~/Desktop/ubuntu.pem ~/Desktop/examination/lawmaking/www/alphabetize.html dev@server2:/var/world wide web          

use -o "IdentityFile" pick.

            $ scp -o IdentityFile ~/Desktop/ubuntu.pem ~/Desktop/test/code/www/alphabetize.html dev@server2:/var/www          

Solution 9 :- Try removing your host entry from "known_hosts" file

Onetime, there may be issue due to old or incorrect host cardinal. Delete that item host from know_hosts file using editor or command as follows.

            $ ssh-keygen -R hostname  or   $ vim ~/.ssh/known_hosts          

Oftentimes Asked Questions (FAQ'due south)

Can ssh but not SCP permission denied?

Answer
Run SCP command -vv selection and attempt to debug the event. Depending upon fault, follow solution i-9 mentioned in this post to resolve your effect.

Volition SCP overwrite existing file?

Answer

Yes, SCP utility finds a file with the same proper noun on target, and you lot have write permission on it. SCP command volition overwrite it. You can change the permission of the target file or directory. So that SCP complaints about permission event and can avert overwriting. Alternatively, you can use rsync tool, which has a lot of options to sync information.

Does SCP copy or movement?

Answer

SCP mean secure copy, as proper name suggest it only re-create files or directories. There is no file movement occurs.

Why SCP is not working?

Respond

At that place may be many reasons if SCP is not working. check SCP "-vvv" option and endeavor to debug, why information technology'south non working. I have given 9 solutions to tackle different permission denied errors. you can refer to them.

How do I know if SCP is working?

Answer

if the exit condition of your command is "0 " and you are able to re-create your file or directory to remote host or AWS EC2 case. Y'all can be assured, SCP is working.

Why is permission denied error in Linux?

Answer

A lot of scenarios may be at that place for "permission denied error in Linux". For example, if you don't take read-write admission on file or directory. Too, if you are trying to run a command which only root can run. You lot would demand either root or sudo access to run these commands. For example, chmod or chown is 1 of these commands.

Video tutorial

If you need some video guidance. Check out this video on "SCP permission denied error", The bones or common troubleshooting to offset with.

Conclusion

There is no limit to issues or errors when you are in the technical world or on the style of learning. Just I think your question on "why am I getting permission denied with SCP" will exist resolved, in one case you will read the solution mentioned in this mail. One or other solution will resolve your issue depending upon error code.

I hope you lot volition exit with smile on your face, once your permission denied issue during scp will get resolve.

Meet you soon in the next postal service. Till that time go on learning.

bergwitteplaidep.blogspot.com

Source: https://cloudlinuxtech.com/scp-permission-denied/

Share this post