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Requests changing the passphrase of a private key file instead of creating a new private key. -t Specifies the type of key to create (e.g., rsa). -o Use the new OpenSSH format. -q quiets ssh-keygen. It is used by the /etc/rc file while creating a new key. -N Provides a new Passphrase. -B Dumps the key's fingerprint in Bubble Babble format. -l
Secure Shell (SSH) is a protocol allowing secure remote login to a computer on a network using public-key cryptography.SSH client programs (such as ssh from OpenSSH) typically run for the duration of a remote login session and are configured to look for the user's private key in a file in the user's home directory (e.g., .ssh/id_rsa).
PuTTY supports many variations on the secure remote terminal, and provides user control over the SSH encryption key and protocol version, alternate ciphers such as AES, 3DES, RC4, Blowfish, DES, and public-key authentication. PuTTY uses its own format of key files – PPK (protected by Message Authentication Code). [8]
Generally runs over an SSH connection. SSH File Transfer Protocol (SFTP), a secure alternative to FTP (not to be confused with FTP over SSH or FTPS) Files transferred over shell protocol (FISH), released in 1998, which evolved from Unix shell commands over SSH; Fast and Secure Protocol (FASP), aka Aspera, uses SSH for control and UDP ports for ...
sftp, a replacement for ftp to copy files between computers. ssh, a replacement for rlogin, rsh and telnet to allow shell access to a remote machine. ssh-add and ssh-agent, utilities to ease authentication by holding keys ready and avoid the need to enter passphrases every time they are used.
The client initiates SSH or RSH connection with echo FISH:;/bin/sh as the command executed on remote machine. This should make it possible for the server to distinguish FISH connections from normal RSH or SSH. The first two commands sent to the server are FISH and VER to negotiate FISH protocol, its version and extensions.
At the outset of the IETF Secure Shell File Transfer project, the Secsh group stated that its objective of SSH File Transfer Protocol was to provide a secure file transfer functionality over any reliable data stream, and to be the standard file transfer protocol for use with the SSH-2 protocol.
The SCP is a network protocol, based on the BSD RCP protocol, [5] which supports file transfers between hosts on a network. SCP uses Secure Shell (SSH) for data transfer and uses the same mechanisms for authentication, thereby ensuring the authenticity and confidentiality of the data in transit.