1 .ig \" -*- nroff -*- 2 Copyright (c) 1999 Philip Hands Computing <http://www.hands.com/> 3 4 Permission is granted to make and distribute verbatim copies of 5 this manual provided the copyright notice and this permission notice 6 are preserved on all copies. 7 8 Permission is granted to copy and distribute modified versions of this 9 manual under the conditions for verbatim copying, provided that the 10 entire resulting derived work is distributed under the terms of a 11 permission notice identical to this one. 12 13 Permission is granted to copy and distribute translations of this 14 manual into another language, under the above conditions for modified 15 versions, except that this permission notice may be included in 16 translations approved by the Free Software Foundation instead of in 17 the original English. 18 .. 19 .TH SSH-COPY-ID 1 "14 November 1999" "OpenSSH" 20 .SH NAME 21 ssh-copy-id \- install your public key in a remote machine's authorized_keys 22 .SH SYNOPSIS 23 .B ssh-copy-id [-i [identity_file]] 24 .I "[user@]machine" 25 .br 26 .SH DESCRIPTION 27 .BR ssh-copy-id 28 is a script that uses ssh to log into a remote machine and 29 append the indicated identity file to that machine's 30 .B ~/.ssh/authorized_keys 31 file. 32 .PP 33 If the 34 .B -i 35 option is given then the identity file (defaults to 36 .BR ~/.ssh/id_rsa.pub ) 37 is used, regardless of whether there are any keys in your 38 .BR ssh-agent . 39 Otherwise, if this: 40 .PP 41 .B " ssh-add -L" 42 .PP 43 provides any output, it uses that in preference to the identity file. 44 .PP 45 If the 46 .B -i 47 option is used, or the 48 .B ssh-add 49 produced no output, then it uses the contents of the identity 50 file. Once it has one or more fingerprints (by whatever means) it 51 uses ssh to append them to 52 .B ~/.ssh/authorized_keys 53 on the remote machine (creating the file, and directory, if necessary.) 54 55 .SH NOTES 56 This program does not modify the permissions of any 57 pre-existing files or directories. Therefore, if the remote 58 .B sshd 59 has 60 .B StrictModes 61 set in its 62 configuration, then the user's home, 63 .B ~/.ssh 64 folder, and 65 .B ~/.ssh/authorized_keys 66 file may need to have group writability disabled manually, e.g. via 67 68 .B " chmod go-w ~ ~/.ssh ~/.ssh/authorized_keys" 69 70 on the remote machine. 71 72 .SH "SEE ALSO" 73 .BR ssh (1), 74 .BR ssh-agent (1), 75 .BR sshd (8) 76
