annotate README @ 75:a54d20c96178

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author Matt Johnston <matt@ucc.asn.au>
date Sat, 14 Aug 2004 17:59:42 +0000
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1 This is Dropbear, a smallish SSH 2 server and client.
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3 INSTALL has compilation instructions.
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5 MULTI has instructions on making a multi-purpose binary (ie a single binary
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6 which performs multiple tasks, to save disk space)
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7
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8 SMALL has some tips on creating small binaries.
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10 See TODO for a few of the things I know need looking at, and please contact
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11 me if you have any questions/bugs found/features/ideas/comments etc :)
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13 Matt Johnston
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14 [email protected]
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17 In the absence of detailed documentation, some notes follow:
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18 ============================================================================
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19
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20 Public key auth:
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22 You can use ~/.ssh/authorized_keys in the same way as with OpenSSH, just put
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23 the key entries in that file. They should be of the form:
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25 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEAwVa6M6cGVmUcLl2cFzkxEoJd06Ub4bVDsYrWvXhvUV+ZAM9uGuewZBDoAqNKJxoIn0Hyd0Nk/yU99UVv6NWV/5YSHtnf35LKds56j7cuzoQpFIdjNwdxAN0PCET/MG8qyskG/2IE2DPNIaJ3Wy+Ws4IZEgdJgPlTYUBWWtCWOGc= [email protected]
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27 You must make sure that ~/.ssh, and the key file, are only writable by the
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28 user.
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30 NOTE: Dropbear ignores authorized_keys options such as those described in the
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31 OpenSSH sshd manpage, and will not allow a login for these keys.
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33 ============================================================================
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34
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35 If you want to get the public-key portion of a Dropbear private key, look at
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36 dropbearkey's '-y' option.
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38 ============================================================================
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40 To run the server, you need to generate server keys, this is one-off:
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41 ./dropbearkey -t rsa -f dropbear_rsa_host_key
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42 ./dropbearkey -t dss -f dropbear_dss_host_key
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43
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44 or alternatively convert OpenSSH keys to Dropbear:
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45 ./dropbearconvert openssh dropbear /etc/ssh/ssh_host_dsa_key dropbear_dss_host_key
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47 ============================================================================
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49 If the server is run as non-root, you most likely won't be able to allocate a
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50 pty, and you cannot login as any user other than that running the daemon
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51 (obviously). Shadow passwords will also be unusable as non-root.
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53 ============================================================================
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55 The Dropbear distribution includes a standalone version of OpenSSH's scp
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56 program. You can compile it with "make scp", you may want to change the path
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57 of the ssh binary, specified near the top of the scp.c file. By default
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58 the progress meter isn't compiled in to save space, you can enable it by
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59 adding 'SCPPROGRESS=1' to the make commandline.