Mercurial > dropbear

annotate debian/dropbear.README.Debian @ 336:2dd116db1956

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Can't check for ss_family without #including sys/socket.h
author Matt Johnston <matt@ucc.asn.au>
date Mon, 12 Jun 2006 16:03:52 +0000
parents 1857c2c551ea
children 8c2d2edadf2a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
70
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1 Dropbear for Debian
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
2 -------------------
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
3
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
4 This package will attempt to listen on port 22. If the OpenSSH
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
5 package ("ssh") is installed, the file /etc/default/dropbear
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
6 will be set up so that the server does not start by default.
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
7
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
8 You can run Dropbear concurrently with OpenSSH 'sshd' by
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
9 modifying /etc/default/dropbear so that "NO_START" is set to
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
10 "0" and changing the port number that Dropbear runs on. Follow
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
11 the instructions in the file.
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
12
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
13 This package suggests you install the "ssh" package. This package
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
14 provides the "ssh" client program, as well as the "/usr/bin/scp"
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
15 binary you will need to be able to retrieve files from a server
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
16 running Dropbear via SCP.
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
17
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
18 Replacing OpenSSH "sshd" with Dropbear
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
19 --------------------------------------
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
20
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
21 You will still want to have the "ssh" package installed, as it
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
22 provides the "ssh" and "scp" binaries. When you install this
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
23 package, it checks for existing OpenSSH host keys and if found,
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
24 converts them to the Dropbear format.
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
25
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
26 If this appears to have worked, you should be able to change over
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
27 by following these steps:
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
28
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
29 1. Stop the OpenSSH server
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
30 % /etc/init.d/ssh stop
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
31 2. Prevent the OpenSSH server from starting in the future
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
32 % touch /etc/ssh/sshd_not_to_be_run
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
33 3. Modify the Dropbear defaults file, set NO_START to 0 and
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
34 ensure DROPBEAR_PORT is set to 22.
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
35 % editor /etc/default/dropbear
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
36 4. Restart the Dropbear server.
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
37 % /etc/init.d/dropbear restart
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
38
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
39 See the Dropbear homepage for more information:
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
40 http://matt.ucc.asn.au/dropbear/dropbear.html
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
41
327
1857c2c551ea Bring in changes from Debian 0.48.1-1
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
42
1857c2c551ea Bring in changes from Debian 0.48.1-1
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
43 Entropy from /dev/random
1857c2c551ea Bring in changes from Debian 0.48.1-1
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
44 ------------------------
1857c2c551ea Bring in changes from Debian 0.48.1-1
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
45
1857c2c551ea Bring in changes from Debian 0.48.1-1
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
46 The dropbear binary package is configured at compile time to read
1857c2c551ea Bring in changes from Debian 0.48.1-1
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
47 entropy from /dev/random. If /dev/random on a system blocks when
1857c2c551ea Bring in changes from Debian 0.48.1-1
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
48 reading data from it, client logins may be delayed until the client
1857c2c551ea Bring in changes from Debian 0.48.1-1
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
49 times out. The dropbear server writes a notice to the logs when it
1857c2c551ea Bring in changes from Debian 0.48.1-1
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
50 sees /dev/random blocking. A workaround for such systems is to
1857c2c551ea Bring in changes from Debian 0.48.1-1
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
51 re-compile the package with DROPBEAR_RANDOM_DEV set to /dev/urandom
1857c2c551ea Bring in changes from Debian 0.48.1-1
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
52 in options.h.