SSH.com frontpage. For configuring passwordless public key authentication, see ssh-keygen. The ssh program on a host receives its configuration from either the command line or from configuration files /.ssh/config and /etc/ssh/sshconfig. Command-line options take precedence over configuration files. The user-specific configuration file /.ssh/config is used next. Ssh-keygen -t rsa -b 2048 This will generate the SSH key. Press Enter at the following prompt to save the key in the default location (under your user directory as a folder named.ssh). You will then be prompted to enter a secure passphrase, but you can leave that blank. It's a free, simple, and easy-to-use tool. Terminus is a free and open source software with clean and modern UI, as opposed to numerous proprietary SSH clients out there with an outdated and unintuitive interface. Uses a lot of computer's memory.

• Configure Ssh Key
• Open Ssh Key Client

SSH client & key policies

class paramiko.client.AutoAddPolicy¶

Policy for automatically adding the hostname and new host key to thelocal HostKeys object, and saving it. This is used by SSHClient.

class paramiko.client.MissingHostKeyPolicy¶

Interface for defining the policy that SSHClient should use when theSSH server’s hostname is not in either the system host keys or theapplication’s keys. Pre-made classes implement policies for automaticallyadding the key to the application’s HostKeys object (AutoAddPolicy),and for automatically rejecting the key (RejectPolicy).

This function may be used to ask the user to verify the key, for example.

__weakref__¶

list of weak references to the object (if defined)

missing_host_key(client, hostname, key)¶

Called when an SSHClient receives a server key for a server thatisn’t in either the system or local HostKeys object. To acceptthe key, simply return. To reject, raised an exception (which willbe passed to the calling application).

class paramiko.client.RejectPolicy¶

Policy for automatically rejecting the unknown hostname & key. This isused by SSHClient.

class paramiko.client.SSHClient¶

A high-level representation of a session with an SSH server. This classwraps Transport, Channel, and SFTPClient to take care of mostaspects of authenticating and opening channels. A typical use case is:

You may pass in explicit overrides for authentication and server host keychecking. The default mechanism is to try to use local key files or anSSH agent (if one is running).

Instances of this class may be used as context managers.

New in version 1.6.

__init__()¶

Create a new SSHClient.

close()¶

Close this SSHClient and its underlying Transport.

Warning

Failure to do this may, in some situations, cause your Pythoninterpreter to hang at shutdown (often due to race conditions).It’s good practice to close your client objects anytime you’redone using them, instead of relying on garbage collection.

connect(hostname, port=22, username=None, password=None, pkey=None, key_filename=None, timeout=None, allow_agent=True, look_for_keys=True, compress=False, sock=None, gss_auth=False, gss_kex=False, gss_deleg_creds=True, gss_host=None, banner_timeout=None, auth_timeout=None, gss_trust_dns=True, passphrase=None, disabled_algorithms=None)¶

Connect to an SSH server and authenticate to it. The server’s host keyis checked against the system host keys (see load_system_host_keys)and any local host keys (load_host_keys). If the server’s hostnameis not found in either set of host keys, the missing host key policyis used (see set_missing_host_key_policy). The default policy isto reject the key and raise an SSHException.

Authentication is attempted in the following order of priority:

• The pkey or key_filename passed in (if any)
  • key_filename may contain OpenSSH public certificate pathsas well as regular private-key paths; when files ending in-cert.pub are found, they are assumed to match a privatekey, and both components will be loaded. (The private keyitself does not need to be listed in key_filename forthis to occur - just the certificate.)
• Any key we can find through an SSH agent
• Any “id_rsa”, “id_dsa” or “id_ecdsa” key discoverable in~/.ssh/
  • When OpenSSH-style public certificates exist that match anexisting such private key (so e.g. one has id_rsa andid_rsa-cert.pub) the certificate will be loaded alongsidethe private key and used for authentication.
• Plain username/password auth, if a password was given

If a private key requires a password to unlock it, and a password ispassed in, that password will be used to attempt to unlock the key.

Parameters:	hostname (str) – the server to connect to port (int) – the server port to connect to username (str) – the username to authenticate as (defaults to the current localusername) password (str) – Used for password authentication; is also used for private keydecryption if passphrase is not given. passphrase (str) – Used for decrypting private keys. pkey (PKey) – an optional private key to use for authentication key_filename (str) – the filename, or list of filenames, of optional private key(s)and/or certs to try for authentication timeout (float) – an optional timeout (in seconds) for the TCP connect allow_agent (bool) – set to False to disable connecting to the SSH agent look_for_keys (bool) – set to False to disable searching for discoverable private keyfiles in ~/.ssh/ compress (bool) – set to True to turn on compression sock (socket) – an open socket or socket-like object (such as a Channel) to usefor communication to the target host gss_auth (bool) – True if you want to use GSS-API authentication gss_kex (bool) – Perform GSS-API Key Exchange and user authentication gss_deleg_creds (bool) – Delegate GSS-API client credentials or not gss_host (str) – The targets name in the kerberos database. default: hostname gss_trust_dns (bool) – Indicates whether or not the DNS is trusted to securelycanonicalize the name of the host being connected to (defaultTrue). banner_timeout (float) – an optional timeout (in seconds) to waitfor the SSH banner to be presented. auth_timeout (float) – an optional timeout (in seconds) to wait foran authentication response. disabled_algorithms (dict) – an optional dict passed directly to Transport and its keywordargument of the same name.
Raises:	BadHostKeyException – if the server’s host key could not beverified
Raises:	AuthenticationException – if authentication failed
Raises:	SSHException – if there was any other error connecting orestablishing an SSH session
Raises:	socket.error – if a socket error occurred while connecting

Changed in version 1.15: Added the banner_timeout, gss_auth, gss_kex,gss_deleg_creds and gss_host arguments.

Changed in version 2.3: Added the gss_trust_dns argument.

Changed in version 2.4: Added the passphrase argument.

Changed in version 2.6: Added the disabled_algorithms argument.

exec_command(command, bufsize=-1, timeout=None, get_pty=False, environment=None)¶

Execute a command on the SSH server. A new Channel is opened andthe requested command is executed. The command’s input and outputstreams are returned as Python file-like objects representingstdin, stdout, and stderr.

Parameters:	command (str) – the command to execute bufsize (int) – interpreted the same way as by the built-in file() function inPython timeout (int) – set command’s channel timeout. See Channel.settimeout get_pty (bool) – Request a pseudo-terminal from the server (default False).See Channel.get_pty environment (dict) – a dict of shell environment variables, to be merged into thedefault environment that the remote command executes within. Warning Bartending for beginners The cocktail renaissance of the last decade has brought bartending to the forefront of the hospitality industry. The modern bartender is a professional who is dedicated to perfecting mixology and providing outstanding customer service. Beginning bartenders will get the lower-traffic lunch and early-weekday evening shifts. Established bartenders get most of the evenings, especially the very lucrative Friday and Saturday nights. If you’re bartending at a sports bar, however, Sunday lunch shifts will be huge. Classic Drinks Every Bartender Should Know Boulevardier. Credit to Erskine Gwynne, an American writer based in Paris, for the creation of this perfect classic. The defining feature of a fizz, which is a family of cocktails, is the combination of acidic juice and fizzy. A shot glass, metal strainer, mixing glass, metal shaker base, three-piece metal shaker, wooden muddler, and metal spoon are all you need to begin your path as an aspiring bartender. As one of the best mixologist starter kits on the market, it's important to start off with quality tools such as these. 308 Entry Level Bartender jobs available on Indeed.com. Apply to Bartender, Server Bartender, Bartender Server Experience Solar Company Human Resource Commission and more! Beginner bartender. Servers may silently reject some environment variables; see thewarning in Channel.set_environment_variable for details.
Returns:	the stdin, stdout, and stderr of the executing command, as a3-tuple
Raises:	SSHException – if the server fails to execute the command

get_host_keys()¶

Get the local HostKeys object. This can be used to examine thelocal host keys or change them.

Returns:	the local host keys as a HostKeys object.

get_transport()¶

Return the underlying Transport object for this SSH connection.This can be used to perform lower-level tasks, like opening specifickinds of channels.

Returns:	the Transport for this connection

invoke_shell(term='vt100', width=80, height=24, width_pixels=0, height_pixels=0, environment=None)¶

Start an interactive shell session on the SSH server. A new Channelis opened and connected to a pseudo-terminal using the requestedterminal type and size.

Parameters:	term (str) – the terminal type to emulate (for example, 'vt100') width (int) – the width (in characters) of the terminal window height (int) – the height (in characters) of the terminal window width_pixels (int) – the width (in pixels) of the terminal window height_pixels (int) – the height (in pixels) of the terminal window environment (dict) – the command’s environment
Returns:	a new Channel connected to the remote shell
Raises:	SSHException – if the server fails to invoke a shell

load_host_keys(filename)¶

Load host keys from a local host-key file. Host keys read with thismethod will be checked after keys loaded via load_system_host_keys,but will be saved back by save_host_keys (so they can be modified).The missing host key policy AutoAddPolicy adds keys to this set andsaves them, when connecting to a previously-unknown server.

This method can be called multiple times. Each new set of host keyswill be merged with the existing set (new replacing old if there areconflicts). When automatically saving, the last hostname is used.

Parameters:	filename (str) – the filename to read
Raises:	IOError – if the filename could not be read

load_system_host_keys(filename=None)¶

Configure Ssh Key

Load host keys from a system (read-only) file. Host keys read withthis method will not be saved back by save_host_keys.

This method can be called multiple times. Each new set of host keyswill be merged with the existing set (new replacing old if there areconflicts).

If filename is left as None, an attempt will be made to readkeys from the user’s local “known hosts” file, as used by OpenSSH,and no exception will be raised if the file can’t be read. This isprobably only useful on posix.

Parameters:	filename (str) – the filename to read, or None
Raises:	IOError –if a filename was provided and the file could not be read

open_sftp()¶

Open an SFTP session on the SSH server.

Returns:	a new SFTPClient session object

save_host_keys(filename)¶

Save the host keys back to a file. Only the host keys loaded withload_host_keys (plus any added directly) will be saved – not anyhost keys loaded with load_system_host_keys.

Open Ssh Key Client

Parameters:	filename (str) – the filename to save to
Raises:	IOError – if the file could not be written

set_log_channel(name)¶

Set the channel for logging. The default is 'paramiko.transport'but it can be set to anything you want.

Parameters:	name (str) – new channel name for logging

set_missing_host_key_policy(policy)¶

Set policy to use when connecting to servers without a known host key.

Specifically:

• A policy is a “policy class” (or instance thereof), namely somesubclass of MissingHostKeyPolicy such as RejectPolicy (thedefault), AutoAddPolicy, WarningPolicy, or a user-createdsubclass.
• A host key is known when it appears in the client object’s cachedhost keys structures (those manipulated by load_system_host_keysand/or load_host_keys).

Parameters:	policy (MissingHostKeyPolicy) – the policy to use when receiving a host key from apreviously-unknown server

class paramiko.client.WarningPolicy¶

Policy for logging a Python-style warning for an unknown host key, butaccepting it. This is used by SSHClient.