Scp only

From CompleteNoobs
Jump to navigation Jump to search
Please Select a Licence from the LICENCE_HEADERS page
 And place at top of your page
 If no Licence is Selected/Appended, Default will be CC0

Default Licence IF there is no Licence placed below this notice! When you edit this page, you agree to release your contribution under the CC0 Licence

LICENCE: More information about the cc0 licence can be found here:
https://creativecommons.org/share-your-work/public-domain/cc0

The person who associated a work with this deed has dedicated the work to the public domain by waiving all of his or her rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.

You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

Licence:

Statement of Purpose

The laws of most jurisdictions throughout the world automatically confer exclusive Copyright and Related Rights (defined below) upon the creator and subsequent owner(s) (each and all, an "owner") of an original work of authorship and/or a database (each, a "Work").

Certain owners wish to permanently relinquish those rights to a Work for the purpose of contributing to a commons of creative, cultural and scientific works ("Commons") that the public can reliably and without fear of later claims of infringement build upon, modify, incorporate in other works, reuse and redistribute as freely as possible in any form whatsoever and for any purposes, including without limitation commercial purposes. These owners may contribute to the Commons to promote the ideal of a free culture and the further production of creative, cultural and scientific works, or to gain reputation or greater distribution for their Work in part through the use and efforts of others.

For these and/or other purposes and motivations, and without any expectation of additional consideration or compensation, the person associating CC0 with a Work (the "Affirmer"), to the extent that he or she is an owner of Copyright and Related Rights in the Work, voluntarily elects to apply CC0 to the Work and publicly distribute the Work under its terms, with knowledge of his or her Copyright and Related Rights in the Work and the meaning and intended legal effect of CC0 on those rights.

1. Copyright and Related Rights. A Work made available under CC0 may be protected by copyright and related or neighboring rights ("Copyright and Related Rights"). Copyright and Related Rights include, but are not limited to, the following: 

   the right to reproduce, adapt, distribute, perform, display, communicate, and translate a Work;
   moral rights retained by the original author(s) and/or performer(s);
   publicity and privacy rights pertaining to a person's image or likeness depicted in a Work;
   rights protecting against unfair competition in regards to a Work, subject to the limitations in paragraph 4(a), below;
   rights protecting the extraction, dissemination, use and reuse of data in a Work;
   database rights (such as those arising under Directive 96/9/EC of the European Parliament and of the Council of 11 March 1996 on the legal protection of databases, and under any national implementation thereof, including any amended or successor version of such directive); and
   other similar, equivalent or corresponding rights throughout the world based on applicable law or treaty, and any national implementations thereof.

2. Waiver. To the greatest extent permitted by, but not in contravention of, applicable law, Affirmer hereby overtly, fully, permanently, irrevocably and unconditionally waives, abandons, and surrenders all of Affirmer's Copyright and Related Rights and associated claims and causes of action, whether now known or unknown (including existing as well as future claims and causes of action), in the Work (i) in all territories worldwide, (ii) for the maximum duration provided by applicable law or treaty (including future time extensions), (iii) in any current or future medium and for any number of copies, and (iv) for any purpose whatsoever, including without limitation commercial, advertising or promotional purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each member of the public at large and to the detriment of Affirmer's heirs and successors, fully intending that such Waiver shall not be subject to revocation, rescission, cancellation, termination, or any other legal or equitable action to disrupt the quiet enjoyment of the Work by the public as contemplated by Affirmer's express Statement of Purpose.

3. Public License Fallback. Should any part of the Waiver for any reason be judged legally invalid or ineffective under applicable law, then the Waiver shall be preserved to the maximum extent permitted taking into account Affirmer's express Statement of Purpose. In addition, to the extent the Waiver is so judged Affirmer hereby grants to each affected person a royalty-free, non transferable, non sublicensable, non exclusive, irrevocable and unconditional license to exercise Affirmer's Copyright and Related Rights in the Work (i) in all territories worldwide, (ii) for the maximum duration provided by applicable law or treaty (including future time extensions), (iii) in any current or future medium and for any number of copies, and (iv) for any purpose whatsoever, including without limitation commercial, advertising or promotional purposes (the "License"). The License shall be deemed effective as of the date CC0 was applied by Affirmer to the Work. Should any part of the License for any reason be judged legally invalid or ineffective under applicable law, such partial invalidity or ineffectiveness shall not invalidate the remainder of the License, and in such case Affirmer hereby affirms that he or she will not (i) exercise any of his or her remaining Copyright and Related Rights in the Work or (ii) assert any associated claims and causes of action with respect to the Work, in either case contrary to Affirmer's express Statement of Purpose.

4. Limitations and Disclaimers. 

   No trademark or patent rights held by Affirmer are waived, abandoned, surrendered, licensed or otherwise affected by this document.
   Affirmer offers the Work as-is and makes no representations or warranties of any kind concerning the Work, express, implied, statutory or otherwise, including without limitation warranties of title, merchantability, fitness for a particular purpose, non infringement, or the absence of latent or other defects, accuracy, or the present or absence of errors, whether or not discoverable, all to the greatest extent permissible under applicable law.
   Affirmer disclaims responsibility for clearing rights of other persons that may apply to the Work or any use thereof, including without limitation any person's Copyright and Related Rights in the Work. Further, Affirmer disclaims responsibility for obtaining any necessary consents, permissions or other rights required for any use of the Work.
   Affirmer understands and acknowledges that Creative Commons is not a party to this document and has no duty or obligation with respect to this CC0 or use of the Work.

scp only account key and path

Create Account on Server

Create user account you are going to use:
adduser rscp

Make sure user has a .ssh directory to send public key to:

  • TIP: If logged in as root for permissions reasons you may want to run as user: su - <username> -c "<command>"

mkdir /home/rscp/.ssh

Make a Directory to transfer files to:
mkdir /home/rscp/media

Note: If you see error scp: /home/rscp/media/test.txt: Permission denied If you created directory media when logged in as root then check directory permissions and if need assign ownership to user account.
Example:chown rscp:rscp /home/rscp/media


Send your public key to server

After public_key/authorized_key is on server, edit authorized_keys and at the start before ssh-rsa <KEY> 

command="/usr/bin/scp -t /home/rscp/media/"  ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC...

If from remote server you are sending a Directory include the -r flag in command:

After public_key/authorized_key is on server, edit authorized_keys and at the start before ssh-rsa <KEY> 

command="/usr/bin/scp -t -r /home/rscp/media/"  ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC...


This entry in the authorized_keys file uses the command option to restrict the SSH command that can be run with the associated SSH key. The command option specifies that the scp command should be used to transfer files to the /home/rscp/media/ directory on the server.

Here's a breakdown of the entry:

  • command="/usr/bin/scp -t /home/rscp/": This specifies that the scp command should be used as the SSH command for this key, with the -t option to specify that the remote end is a file (in this case, a directory), and the destination directory on the server is /home/rscp/. This means that the user can only use the SSH key to transfer files to the /home/rscp/ directory on the server.
  • ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC...: This is the public key associated with the private key that is used for authentication.

By using the command option in this way, you can restrict the actions that the user can perform with the SSH key, which can help to improve security. In this case, the user can only transfer files to the specified directory on the server using the scp command.

  • Full example authorized_keys:
command="/usr/bin/scp -t -r /home/rscp/media" ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQCvDsXsJJwp065xHBD01+HpIwmENxruZQpecTzKAhIt+OkHxrvG4v1gxaW9WxSD78yE0gyrgJ+DHz5jEn/z0ERuTSIEVAmPWl15k4Wa1kLwUA+Vg+rgtDSGr6oIYwqj2LmK+6kXwW5iUZdM1QvzpQHa868XRabEpMAEzK1o3wARzhffz4qZRhpUj8asBvnDF5SgoOMAqtuWjjvYXjfL8g42trmsQi+0ADd2KxroB7ggYC31WP4Y+14zGlW2LHC0Po7XbM+2t4peFpyl0nSejMeVuyZB7V6FIzJs6gBN9fdLAPYgv74Ihhb2+VDevnS+t874ZQHwAlUf2bjo3zS4i4QEJSCM2TtJuUIc64LqMwvHX05BMUjc1WHyzGomDjtOuQdejf3gMcyXufIYWfBhMIa03xtC/J4M1ECJDlQqqgouHoZh+3z19LjvXr+3xU14E2DxCWkK9e/mo8gacviapZZCEye6nNq+89LL9LQhJyzG0gSYyUnMNwfrqd4fkUY16s4w/yMF4hKnMvEIUmsgXKl3rvhHUpWxGQHBZMI3hk11gcD7maEsuXW+2U+dvcK6bC/eRjg2Lk6wiBEF6XAfWE9p72jmALbS6wHqGsg6gA81bqB/Od0kOzCDl5nsIVVidSoSOru+QISwQ2byxvQAsldMTMQfxRyjBbPytHhkDJM5UQ== XML_Server

Tip - transfer file to a path your USER does not have permissions for

You can write a shell script to check the /home/rscp/media directory every minute using a while loop and the sleep command. If any files are found in the directory, the script can move them to the /var/www/media directory using the mv command. Here's an example script: 

#!/bin/bash

while true
do
  if [ "$(ls -A /home/rscp/media/)" ]; then
    mv /home/rscp/media/* /var/www/media/
  fi
  sleep 60
done

In this script, the while loop runs indefinitely (while true) and sleeps for 60 seconds at the end of each iteration (sleep 60).

The if statement checks if the /home/rscp/media directory is not empty ([ "$(ls -A /home/rscp/media/)" ]). If it is not empty, the mv command is used to move all files and directories from the /home/rscp/media/ directory to the /var/www/media/ directory.

Save this script to a file (e.g. move-files.sh) and make it executable using the chmod +x move-files.sh command. You can then run the script using ./move-files.sh & to start it in the background and allow it to run indefinitely. The & symbol is used to run the script in the background so that you can continue using the terminal.

Note that running this script indefinitely can consume system resources, so you may want to consider setting up a scheduled task (e.g. using cron) to run the script at a specific interval instead of running it indefinitely.

Retrieved from "https://www.completenoobs.com/noobs/index.php?title=Scp_only&oldid=495"