When 'none' is the agreed on MAC, no message authentication code is used.
Additional options are 'none', 'any' (equivalent to AnyMac plus 'none'), and 'AnyStd' (equivalent to 'AnyStdMac' plus 'none'). Multiple MACs can also be specified as a comma-separated list. Specifying hmac-sha512 also enables hmac-sha2-512. Specifying hmac-sha256 also enables hmac-sha2-256. Specifies which MACs (message authentication codes) are supported for this connection. (Values 4-98 are accepted, but are equivalent to 3.) -hĭisplays a brief summary of command options. Increasing the value increases the amount of information displayed. The following values are provided for convenience: 'aes' (all supported aes ciphers), 'blowfish' (equivalent to 'blowfish-cbc'), 'cast' (equivalent to 'cast128-cbc'), '3des' (equivalent to '3des-cbc'), 'Any' or 'AnyStd' (all available ciphers plus 'none'), and 'An圜ipher' or 'AnyStdCipher' (all available ciphers). Note that this method provides no confidentiality protection, and is not recommended. When 'none' is the agreed on cipher, data is not encrypted. The cipher used for a given session is the cipher highest in the client's order of preference that is also supported by the server. If no cipher is specified, the cipher is determined by the Ciphers keyword in the Secure Shell configuration file ssh2_config(5) the default is 'AnyStdCipher'. Specifies one or more (comma-separated) encryption algorithms supported by the client. However, commands prefixed with "-" (dash) always return 0, even if the command fails. If a command in the batch file fails, sftp continues executing the remaining commands, and returns the error code of the first failed command. The batch file can use any of the interactive commands documented below. Authentication methods that require user interaction are not supported in this mode. After a successful login, sftp executes each command in the specified file until a bye, exit or quit command is found, and then terminates the connection. Specifies a file to use for batch processing sftp commands. Caution: Using very large buffer sizes rarely improves performance and can create problems including: slower transfers, transfer failures with servers that don't support very large buffers, and fatal errors when client or server memory limits are exceeded. On some systems, moderate increases to the buffer size can improve performance. In most cases the default value provides close to optimal transfer speeds. The maximum allowed value is 4194304 bytes. Specifies the buffer size used for data transfer. You can also configure IP address requirements using the AddressFamily keyword. 6įorces connections using IPv6 addresses only. Forces connections using IPv4 addresses only.