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95d41e90ea
ssh(1) setuid has been removed, remove supporting code and clean up references to it in the man pages We have not shipped ssh(1) the setuid bit since 2002. If ayone really needs to make connections from a low port number this can be implemented via a small setuid ProxyCommand. ok markus@ jmc@ djm@ OpenBSD-Commit-ID: d03364610b7123ae4c6792f5274bd147b6de717e
238 lines
5.0 KiB
Groff
238 lines
5.0 KiB
Groff
.\"
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.\" scp.1
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.\"
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.\" Author: Tatu Ylonen <ylo@cs.hut.fi>
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.\"
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.\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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.\" All rights reserved
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.\"
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.\" Created: Sun May 7 00:14:37 1995 ylo
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.\"
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.\" $OpenBSD: scp.1,v 1.80 2018/07/19 10:28:47 dtucker Exp $
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.\"
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.Dd $Mdocdate: July 19 2018 $
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.Dt SCP 1
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.Os
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.Sh NAME
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.Nm scp
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.Nd secure copy (remote file copy program)
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.Sh SYNOPSIS
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.Nm scp
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.Op Fl 346BCpqrv
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.Op Fl c Ar cipher
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.Op Fl F Ar ssh_config
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.Op Fl i Ar identity_file
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.Op Fl l Ar limit
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.Op Fl o Ar ssh_option
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.Op Fl P Ar port
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.Op Fl S Ar program
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.Ar source ... target
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.Sh DESCRIPTION
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.Nm
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copies files between hosts on a network.
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It uses
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.Xr ssh 1
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for data transfer, and uses the same authentication and provides the
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same security as
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.Xr ssh 1 .
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.Nm
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will ask for passwords or passphrases if they are needed for
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authentication.
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.Pp
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The
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.Ar source
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and
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.Ar target
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may be specified as a local pathname, a remote host with optional path
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in the form
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.Sm off
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.Oo user @ Oc host : Op path ,
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.Sm on
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or a URI in the form
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.Sm off
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.No scp:// Oo user @ Oc host Oo : port Oc Op / path .
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.Sm on
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Local file names can be made explicit using absolute or relative pathnames
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to avoid
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.Nm
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treating file names containing
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.Sq :\&
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as host specifiers.
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.Pp
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When copying between two remote hosts, if the URI format is used, a
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.Ar port
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may only be specified on the
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.Ar target
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if the
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.Fl 3
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option is used.
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl 3
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Copies between two remote hosts are transferred through the local host.
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Without this option the data is copied directly between the two remote
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hosts.
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Note that this option disables the progress meter.
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.It Fl 4
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Forces
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.Nm
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to use IPv4 addresses only.
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.It Fl 6
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Forces
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.Nm
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to use IPv6 addresses only.
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.It Fl B
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Selects batch mode (prevents asking for passwords or passphrases).
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.It Fl C
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Compression enable.
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Passes the
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.Fl C
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flag to
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.Xr ssh 1
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to enable compression.
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.It Fl c Ar cipher
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Selects the cipher to use for encrypting the data transfer.
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This option is directly passed to
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.Xr ssh 1 .
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.It Fl F Ar ssh_config
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Specifies an alternative
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per-user configuration file for
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.Nm ssh .
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This option is directly passed to
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.Xr ssh 1 .
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.It Fl i Ar identity_file
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Selects the file from which the identity (private key) for public key
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authentication is read.
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This option is directly passed to
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.Xr ssh 1 .
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.It Fl l Ar limit
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Limits the used bandwidth, specified in Kbit/s.
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.It Fl o Ar ssh_option
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Can be used to pass options to
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.Nm ssh
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in the format used in
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.Xr ssh_config 5 .
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This is useful for specifying options
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for which there is no separate
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.Nm scp
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command-line flag.
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For full details of the options listed below, and their possible values, see
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.Xr ssh_config 5 .
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.Pp
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.Bl -tag -width Ds -offset indent -compact
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.It AddressFamily
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.It BatchMode
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.It BindAddress
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.It BindInterface
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.It CanonicalDomains
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.It CanonicalizeFallbackLocal
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.It CanonicalizeHostname
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.It CanonicalizeMaxDots
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.It CanonicalizePermittedCNAMEs
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.It CertificateFile
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.It ChallengeResponseAuthentication
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.It CheckHostIP
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.It Ciphers
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.It Compression
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.It ConnectionAttempts
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.It ConnectTimeout
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.It ControlMaster
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.It ControlPath
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.It ControlPersist
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.It GlobalKnownHostsFile
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.It GSSAPIAuthentication
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.It GSSAPIDelegateCredentials
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.It HashKnownHosts
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.It Host
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.It HostbasedAuthentication
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.It HostbasedKeyTypes
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.It HostKeyAlgorithms
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.It HostKeyAlias
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.It HostName
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.It IdentitiesOnly
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.It IdentityAgent
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.It IdentityFile
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.It IPQoS
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.It KbdInteractiveAuthentication
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.It KbdInteractiveDevices
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.It KexAlgorithms
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.It LogLevel
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.It MACs
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.It NoHostAuthenticationForLocalhost
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.It NumberOfPasswordPrompts
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.It PasswordAuthentication
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.It PKCS11Provider
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.It Port
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.It PreferredAuthentications
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.It ProxyCommand
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.It ProxyJump
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.It PubkeyAcceptedKeyTypes
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.It PubkeyAuthentication
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.It RekeyLimit
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.It SendEnv
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.It ServerAliveInterval
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.It ServerAliveCountMax
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.It SetEnv
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.It StrictHostKeyChecking
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.It TCPKeepAlive
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.It UpdateHostKeys
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.It User
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.It UserKnownHostsFile
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.It VerifyHostKeyDNS
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.El
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.It Fl P Ar port
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Specifies the port to connect to on the remote host.
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Note that this option is written with a capital
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.Sq P ,
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because
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.Fl p
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is already reserved for preserving the times and modes of the file.
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.It Fl p
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Preserves modification times, access times, and modes from the
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original file.
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.It Fl q
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Quiet mode: disables the progress meter as well as warning and diagnostic
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messages from
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.Xr ssh 1 .
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.It Fl r
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Recursively copy entire directories.
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Note that
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.Nm
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follows symbolic links encountered in the tree traversal.
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.It Fl S Ar program
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Name of
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.Ar program
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to use for the encrypted connection.
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The program must understand
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.Xr ssh 1
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options.
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.It Fl v
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Verbose mode.
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Causes
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.Nm
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and
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.Xr ssh 1
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to print debugging messages about their progress.
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This is helpful in
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debugging connection, authentication, and configuration problems.
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.El
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.Sh EXIT STATUS
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.Ex -std scp
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.Sh SEE ALSO
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.Xr sftp 1 ,
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.Xr ssh 1 ,
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.Xr ssh-add 1 ,
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.Xr ssh-agent 1 ,
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.Xr ssh-keygen 1 ,
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.Xr ssh_config 5 ,
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.Xr sshd 8
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.Sh HISTORY
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.Nm
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is based on the rcp program in
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.Bx
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source code from the Regents of the University of California.
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.Sh AUTHORS
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.An Timo Rinne Aq Mt tri@iki.fi
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.An Tatu Ylonen Aq Mt ylo@cs.hut.fi
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