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The Debian System -- Concepts and Techniques The Debian System -- Concepts and Techniques
Martin F. Krafft Open Source Press / No Starch Press ISBN 3-937514-07-4 / 1-593270-69-0
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Faulty way of spawning sshd in single-user mode (page 299)

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Reported on: 2006-10-22

In chapter 6. Debian system administration on page 299:

In chapter 6.3.1, I suggest to add sshd to the /etc/inittab file to be able to login to a remote system even in single-user mode:

# sed -i -e "/^~~/ish:S:respawn:sshd -Do 'AllowUsers=root'" /etc/inittab

Unfortunately, there are two errors with this: first, sshd must be called with the complete path (to guard against trojans), and init must be told to reload the configuration file after the change.

The following corrects both problems:

# sed -i -e "/^~~/ish:S:respawn:/usr/sbin/sshd -Do 'AllowUsers=root'" /etc/inittab
# telinit q
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Ladislav Bodnar, Distrowatch: No matter how skilled you are in administrating a Debian box and irrespective of how confident you are running the multitude of Debian commands at 4 o'clock in the morning, you are bound to learn something new. There is so much amazing information packed in this book that it is impossible for any one person to know it all. A great reference material [...].

 
 

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