annotate README @ 79:5a55bd66707f

- don't crash when trying to add to known_hosts if it doesn't exist - comments
author Matt Johnston <matt@ucc.asn.au>
date Mon, 16 Aug 2004 08:59:11 +0000
parents a54d20c96178
children c2ac796b130e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
72
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
1 This is Dropbear, a smallish SSH 2 server and client.
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
2
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
3 INSTALL has compilation instructions.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
5 MULTI has instructions on making a multi-purpose binary (ie a single binary
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
6 which performs multiple tasks, to save disk space)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
7
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
8 SMALL has some tips on creating small binaries.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
9
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
10 See TODO for a few of the things I know need looking at, and please contact
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
11 me if you have any questions/bugs found/features/ideas/comments etc :)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
12
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
13 Matt Johnston
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
14 [email protected]
72
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
15
75
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
16
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
17 In the absence of detailed documentation, some notes follow:
72
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
18 ============================================================================
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
19
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
20 Public key auth:
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
21
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
22 You can use ~/.ssh/authorized_keys in the same way as with OpenSSH, just put
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
23 the key entries in that file. They should be of the form:
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
24
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
25 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEAwVa6M6cGVmUcLl2cFzkxEoJd06Ub4bVDsYrWvXhvUV+ZAM9uGuewZBDoAqNKJxoIn0Hyd0Nk/yU99UVv6NWV/5YSHtnf35LKds56j7cuzoQpFIdjNwdxAN0PCET/MG8qyskG/2IE2DPNIaJ3Wy+Ws4IZEgdJgPlTYUBWWtCWOGc= someone@hostname
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
26
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
27 You must make sure that ~/.ssh, and the key file, are only writable by the
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
28 user.
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
29
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
30 NOTE: Dropbear ignores authorized_keys options such as those described in the
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
31 OpenSSH sshd manpage, and will not allow a login for these keys.
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
32
75
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
33 ============================================================================
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
34
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
35 If you want to get the public-key portion of a Dropbear private key, look at
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
36 dropbearkey's '-y' option.
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
37
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
38 ============================================================================
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
39
72
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
40 To run the server, you need to generate server keys, this is one-off:
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
41 ./dropbearkey -t rsa -f dropbear_rsa_host_key
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
42 ./dropbearkey -t dss -f dropbear_dss_host_key
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
43
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
44 or alternatively convert OpenSSH keys to Dropbear:
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
45 ./dropbearconvert openssh dropbear /etc/ssh/ssh_host_dsa_key dropbear_dss_host_key
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
46
75
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
47 ============================================================================
72
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
48
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
49 If the server is run as non-root, you most likely won't be able to allocate a
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
50 pty, and you cannot login as any user other than that running the daemon
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
51 (obviously). Shadow passwords will also be unusable as non-root.
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
52
75
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
53 ============================================================================
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
54
72
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
55 The Dropbear distribution includes a standalone version of OpenSSH's scp
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
56 program. You can compile it with "make scp", you may want to change the path
9597c2e3b9d4 Some doc changes
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
57 of the ssh binary, specified near the top of the scp.c file. By default
75
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
58 the progress meter isn't compiled in to save space, you can enable it by
a54d20c96178 Some documentation touchups
Matt Johnston <matt@ucc.asn.au>
parents: 72
diff changeset
59 adding 'SCPPROGRESS=1' to the make commandline.