Mercurial > dropbear
annotate debian/README.runit @ 1715:3974f087d9c0
Disallow leading lines before the ident for server (#102)
Per RFC4253 4.2 clients must be able to process other lines of data
before the version string, server behavior is not defined neither
with MUST/SHOULD nor with MAY.
If server process up to 50 lines too - it may cause too long hanging
session with invalid/evil client that consume host resources and
potentially may lead to DDoS on poor embedded boxes.
Let's require first line from client to be version string and fail
early if it's not - matches both RFC and real OpenSSH behavior.
author | Vladislav Grishenko <themiron@users.noreply.github.com> |
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date | Mon, 15 Jun 2020 18:22:18 +0500 |
parents | 8c2d2edadf2a |
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1 Using the dropbear SSH server with runit's services supervision |
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2 --------------------------------------------------------------- |
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3 |
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4 The dropbear SSH server is perfectly suited to be run under runit's |
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5 service supervision, and this package already has prepared an adequate |
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6 service directory. Follow these steps to enable the dropbear service |
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7 using the runit package. |
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8 |
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9 If not yet installed on your system, install the runit package, and make |
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10 sure its service supervision is enabled (it's by default) |
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11 |
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12 # apt-get install runit |
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13 |
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14 Make sure the dropbear service normally handled through the sysv init |
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15 script is stopped |
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16 |
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17 # /etc/init.d/dropbear stop |
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18 |
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19 Create the system user ``dropbearlog'' which will run the logger service, |
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20 and own the logs |
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21 |
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22 # adduser --system --home /var/log/dropbear --no-create-home dropbearlog |
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23 |
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24 Create the log directory and make the newly created system user the owner |
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25 of this directory |
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26 |
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27 # mkdir -p /var/log/dropbear && chown dropbearlog /var/log/dropbear |
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28 |
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29 Optionally adjust the configuration of the dropbear service by editing the |
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30 run script |
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31 |
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32 # vi /etc/dropbear/run |
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33 |
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34 Finally enable the service through runit's update-service(8) program, the |
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35 service will be started within five seconds, and automatically at boot |
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36 time, and the sysv init script will automatically be disabled; see the |
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37 sv(8) program for information on how to control services handled by runit. |
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38 See the svlogd(8) program on how to configure the log service. |
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39 |
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40 # update-service --add /etc/dropbear |
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41 |
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42 Optionally check the status of the service a few seconds later |
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43 |
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44 # sv status dropbear |
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45 |
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46 -- Gerrit Pape <[email protected]>, Fri, 02 Mar 2007 20:41:08 +0000 |