Mercurial > dropbear
comparison debian/dropbear.README.Debian @ 389:5ff8218bcee9
propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 2af95f00ebd5bb7a28b3817db1218442c935388e)
to branch 'au.asn.ucc.matt.dropbear' (head ecd779509ef23a8cdf64888904fc9b31d78aa933)
author | Matt Johnston <matt@ucc.asn.au> |
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date | Thu, 11 Jan 2007 03:14:55 +0000 |
parents | 1857c2c551ea |
children | 8c2d2edadf2a |
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1 Dropbear for Debian | |
2 ------------------- | |
3 | |
4 This package will attempt to listen on port 22. If the OpenSSH | |
5 package ("ssh") is installed, the file /etc/default/dropbear | |
6 will be set up so that the server does not start by default. | |
7 | |
8 You can run Dropbear concurrently with OpenSSH 'sshd' by | |
9 modifying /etc/default/dropbear so that "NO_START" is set to | |
10 "0" and changing the port number that Dropbear runs on. Follow | |
11 the instructions in the file. | |
12 | |
13 This package suggests you install the "ssh" package. This package | |
14 provides the "ssh" client program, as well as the "/usr/bin/scp" | |
15 binary you will need to be able to retrieve files from a server | |
16 running Dropbear via SCP. | |
17 | |
18 Replacing OpenSSH "sshd" with Dropbear | |
19 -------------------------------------- | |
20 | |
21 You will still want to have the "ssh" package installed, as it | |
22 provides the "ssh" and "scp" binaries. When you install this | |
23 package, it checks for existing OpenSSH host keys and if found, | |
24 converts them to the Dropbear format. | |
25 | |
26 If this appears to have worked, you should be able to change over | |
27 by following these steps: | |
28 | |
29 1. Stop the OpenSSH server | |
30 % /etc/init.d/ssh stop | |
31 2. Prevent the OpenSSH server from starting in the future | |
32 % touch /etc/ssh/sshd_not_to_be_run | |
33 3. Modify the Dropbear defaults file, set NO_START to 0 and | |
34 ensure DROPBEAR_PORT is set to 22. | |
35 % editor /etc/default/dropbear | |
36 4. Restart the Dropbear server. | |
37 % /etc/init.d/dropbear restart | |
38 | |
39 See the Dropbear homepage for more information: | |
40 http://matt.ucc.asn.au/dropbear/dropbear.html | |
41 | |
42 | |
43 Entropy from /dev/random | |
44 ------------------------ | |
45 | |
46 The dropbear binary package is configured at compile time to read | |
47 entropy from /dev/random. If /dev/random on a system blocks when | |
48 reading data from it, client logins may be delayed until the client | |
49 times out. The dropbear server writes a notice to the logs when it | |
50 sees /dev/random blocking. A workaround for such systems is to | |
51 re-compile the package with DROPBEAR_RANDOM_DEV set to /dev/urandom | |
52 in options.h. |