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Share File easily between computers using sftp
The document provides an overview of the Secure File Transfer Protocol (SFTP), detailing its security features and how it functions as an extension of the Secure Shell (SSH) protocol. It explains the roles of SFTP clients and servers, primarily focusing on OpenSSH, a set of tools for secure communication. Additionally, it discusses the advantages of using SFTP over traditional FTP and Telnet, emphasizing its encryption and protection against interception.
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Share File easily between computers using sftp
- 1. Share files easilybetween computers using sftp Tushar B. Kute [email protected]
- 2. sftp ● The SSHFile Transfer Protocol (also Secure File Transfer Protocol, or SFTP) is a network protocol that provides file access, file transfer, and file management functionalities over any reliable data stream. ● It was designed by the Internet Engineering Task Force (IETF) as an extension of the Secure Shell protocol (SSH) version 2.0 to provide secure file transfer capabilities. ● This protocol assumes that it is run over a secure channel, such as SSH, that the server has already authenticated the client, and that the identity of the client user is available to the protocol.
- 3. sftp server andclient ● SFTP client – It is a command-line program that implements the client part of this protocol. As an example, the sftp program supplied with OpenSSH implements this. – Some implementations of the scp program support both the SFTP and SCP protocols to perform file transfers, depending on what the server supports. ● SFTP server – There are numerous SFTP server implementations both for UNIX, Windows and z/OS. The most widely known is perhaps OpenSSH, but there are also proprietary implementations. Typically the port used is 22. SFTP file transfer protocol is part of SSH protocol suite.
- 4. What is OpenSSH? ●OpenSSH is a free open source set of computer tools used to provide secure and encrypted communication over a computer network by using the ssh protocol. ● Many people, new to computers and protocols, create a misconception about OpenSSH, they think it is a protocol, but it is not, it is a set of computer programs that use the ssh protocol. ● OpenSSH is developed by the Open BSD group and it is released under Simplified BSD License. ● A main factor which has made possible for OpenSSH to be used so much among system administrators is its multi-platform capability and very useful nice features it has. The latest version is OpenSSH 6.4 which has been released on November 8, 2013.
- 5. Why to usesftp over ftp/telnet? ● The most important reason why should use OpenSSH tools over ftp and telnet is that all communications and user credentials using OpenSSH are encrypted, they are also protected from man in the middle attacks. ● If a third party tries to intercept your connection, OpenSSH detects it and informs you about that.
- 6. Features of OpenSSH ●Secure Communication ● Strong Encryption (3DES, Blowfish, AES, Arcfour) ● X11 Forwarding (encrypt X Window System traffic) ● Port Forwarding (encrypted channels for legacy protocols) ● Strong Authentication (Public Key, One-Time Password and Kerberos Authentication) ● Agent Forwarding (Single-Sign-On) ● Interoperability (Compliance with SSH 1.3, 1.5, and 2.0 protocol Standards) ● SFTP client and server support in both SSH1 and SSH2 protocols. ● Kerberos and AFS Ticket Passing ● Data Compression
- 7. OpenSSH Requirements ● OpenSSHcan be installed on any kind of Linux systems and any kind of network connections. ● I have used Ubuntu and Linux Mint in the demonstration. ● Laptop-1: – Dell Vostro with Ubuntu 14.04. – Connected physically to network. ● Laptop-2: – Toshiba Satellite with Linux Mint 17.1 – Connected using Wi-Fi to network.
- 8. Setup in myexperiments Laptop-1 Laptop-2 COPY
- 9.
- 10. OpenSSH Started onLaptop-2
- 11. Check IP ofLaptop-1
- 12. Check IP ofLaptop-2
- 13. On Laptop-1 ● Iwant to access the files in Laptop-1 from Laptop-2. ● Use following command to get connected Laptop-1 to Laptop-2 using sftp. Authentication: yes Username of Laptop-2
- 14. Asks the password Typelaptop-2 password here
- 15.
- 16. See the fileson Laptop-2
- 17. See the samefiles on Laptop-1 ● Type ls on sftp prompt of Laptop-1
- 18. Copy files (Laptop-2) Iwant to copy this file to Laptop-1
- 19. Use 'get' commandto copy file (Laptop-1) Downloaded to /home folder
- 20. Check the copiedfile
- 21. Check other sftpcommands by typing help
- 22. Other ways tocopy files ● Once authentication is completed and connection is done successfully, we can also use following ways to copy the files. – Web browser. – File browser.
- 23.
- 24. Type username andpassword
- 25. Files of Laptop-2are visible on Laptop-1
- 26. I want todownload a file
- 27. Click on thefilename and save it
- 28. Check your filebrowser now By clicking here, you may access the files of laptop-2 directly by file browser
- 29. [email protected] Thank you This presentationis created using LibreOffice Impress 4.2.7.2, can be used freely as per GNU General Public License Blogs http://digitallocha.blogspot.in http://kyamputar.blogspot.in Web Resources http://tusharkute.com