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After installing openssh-server, the server start every time I boot. If I want it to be manual what do I need to do?

In version 0.6.7+ of upstart I would add a "manual" stanza to the job file.

10.04 has upstart 0.6.5-8. What is the preferred way to disable ssh from starting automatically in this case?

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Rename /etc/init/ssh.conf to /etc/init/ssh.conf.disabled.

sudo mv /etc/init/ssh.conf /etc/init/ssh.conf.disabled
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Fast, easy and self-documenting. Perfect. – LeartS Jan 28 '14 at 15:47
1  
Possibly even better than echo manual | sudo tee /etc/init/ssh.conf.override , see also how-to-enable-or-disable-services – here Jan 2 '15 at 9:48
    
echo manual | sudo tee /etc/init/ssh.conf.override seems like a much better answer, because sudo mv /etc/init/ssh.conf /etc/init/ssh.conf.disabled also prevents starting the server manually without changing it back every time. – Brian Z Jun 7 '15 at 4:19
    
@BrianZ ssh.conf.override does not work for me, ssh.override instead. – BornToCode Feb 28 at 1:22

This should be enough,:

 update-rc.d ssh enable # sets the default runlevels to on 
 update-rc.d ssh disable # sets all to off
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Does this work with an upstart job or just old sys v init scripts? – komputes Aug 12 '11 at 16:12
    
This should be enough, even if you're using upstart (dependency-base booting) – hhlp Aug 13 '11 at 9:28
    
It says System start/stop links for /etc/init.d/ssh do not exist. – BornToCode Feb 28 at 0:57

In your /etc/init/ssh.conf, comment out the start on line:

# ssh - OpenBSD Secure Shell server
#
# The OpenSSH server provides secure shell access to the system.

description     "OpenSSH server"

#start on filesystem or runlevel [2345]
stop on runlevel [!2345]

respawn
respawn limit 10 5
umask 022
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1  
I'm of the opinion that in general it's better to use the more generic mechanisms that @komputes and hhlp mention. Though this is fine for a single case. – belacqua Jun 19 '12 at 17:25
sudo apt-get install bum

Start bum with administrative privileges, disable openssh-server, confirm it, done.

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For versions with ssh started by upstart, run touch /etc/ssh/sshd_not_to_be_run. The upstart init script checks for this file and, if existent, does not start sshd.

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The manual method provided /etc/init/ssh.config.override method does not work for me using Ubuntu 14.04.03. sshd still starts automatically.

The /etc/ssh/sshd_not_to_be_run method prevents manual sshd start.

I had to use Brian Agee's method of removing the "start on" on line of /etc/init/ssh.conf. Then to manually start sshd:

sudo service ssh start
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note to the reader:

for me (ubuntu 14.xx) only Bryan Agee's answer worked: /etc/init/ssh.conf: comment out the "start on filesystem or runlevel..." line

why won't the others do?

sudo mv /etc/init/ssh.conf /etc/init/ssh.conf.disabled

will result in completly deactivating the service. It is then not startable through "service ssh start" anymore.

update-rc.d ssh enable # sets the default runlevels to on

does simply not work (perhaps uses different autostart routine)

/etc/init/ssh.conf.override with "manual"

simply doesnt work

touch /etc/ssh/sshd_not_to_be_run

also completly disables the system

sudo apt-get install bum

nice software, but it doesn't show ssh, so nothing to do here

person questioning: why are the above answeres even here? is the start system so complicated or does nobody tries his solutions? oO

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