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How do I disable SSH from starting automatically?

Simple question here; what's the correct way to stop the sshd service from starting when the OS boots ? I'm not sure if this answer is correct, so I'm hoping some guru(s) can help me out!

What I'd like is a configuration that (after boot) allows me to start the service using sudo service ssh start when necessary.

Version info:

me@home:~$ ssh -V
OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012
me@home:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 12.04.1 LTS
Release:    12.04
Codename:   precise
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marked as duplicate by Jorge Castro, RolandiXor, con-f-use, Stephen Myall, Tom Brossman Oct 17 '12 at 19:36

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

2 Answers

up vote 1 down vote accepted

Remove the service from startup with:

sudo update-rc.d -f sshd remove

Reset it with:

sudo update-rc.d sshd defaults
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I'm not exactly sure what you mean by remove and reset... Will I still be able to start the service manually? (i.e. with sudo service ssh start ) ? –  b.long Oct 10 '12 at 2:12
    
Yes, look more into services, runlevels, and rc.d scripts. –  wojox Oct 10 '12 at 12:34
    
It looks like this isn't exactly the solution I'm looking for: me@home-computer:~$ sudo update-rc.d -f sshd remove Removing any system startup links for /etc/init.d/sshd ... me@home-computer:~$ sudo reboot When my computer restarted, I was able to ssh to localhost without starting the service: me@home-computer:~$ ssh me@localhost me@localhost's password: *** Welcome to Ubuntu 12.04... I'm looking for a way to simply stop the service from starting automatically. Any other thoughts? –  b.long Oct 16 '12 at 2:35
    
Did you try the answer you posted in your question? That is another option. Probably a good one. –  wojox Oct 16 '12 at 3:07
    
I didn't post an answer in my question, not sure what you mean? –  b.long Oct 17 '12 at 0:45
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You could install Boot-Up Manager. It is a GUI to enable or disable services on startup.

sudo apt-get install bum

It has to be run as root user.

sudo bum

enter image description here

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