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henning77's questions

Martin Hope
henning77
Asked: 2013-09-03 05:12:21 +0800 CST
  • 2

I need to distribute a small binary application to a limited number (around 20) of known users.

The installation process needs to be as simple & user friendly as possible. Ideally it is a single entry on the command line which downloads the binary & installs it.

Also important:

  • Binary is a single file, no external dependencies.
  • Binary needs to hook itself into the startup process via init.d.
  • Target distro is the same for all users (Debian).

I am thinking along the line, to provide a single command to the users, i.e. something like this:

To install the app, please run this from the command line:
wget https://myapp.com/binary.tgz; tar xvfz binary.tgz; sudo install.sh

Are there more appropiate / simpler solutions I should be aware of?

(Of course sudo somethingFromTheInternet is a security issue for a "real" distribution. However all my users are well known (+know me), and the number of users is very limited (around 20). So I am willing to trade ease of installation for security in this case)

linux
Martin Hope
henning77
Asked: 2013-08-28 10:08:03 +0800 CST
  • 15

I have set up a tunnel via autossh.

This works:

autossh -M 33201 -N -i myIdFile -R 33101:localhost:22 [email protected]

I would like to run autossh in background. Seems easy using the -f option.

This does not work, however:

autossh -f -M 33201 -N -i myIdFile -R 33101:localhost:22 [email protected]

Autossh runs in the background fine, but the ssh connection seems to fail every time. In /var/syslog I see multiple occurences of:

autossh[3420]: ssh exited with error status 255; restarting ssh

What am I doing wrong? A wild guess is it has something to do with the authentication via key file. How can I debug this (adding -v to the ssh options does not seem to log anywhere).

Edit: I got some ssh logs using the -y option

/usr/bin/ssh[3484]: debug1: Next authentication method: publickey
/usr/bin/ssh[3484]: debug1: Trying private key: /home/myuser/.ssh/id_rsa
/usr/bin/ssh[3484]: debug1: Trying private key: /home/myuser/.ssh/id_dsa
/usr/bin/ssh[3484]: debug1: Trying private key: /home/myuser/.ssh/id_ecdsa
/usr/bin/ssh[3484]: debug1: No more authentication methods to try.
/usr/bin/ssh[3484]: fatal: Permission denied (publickey).
autossh[3469]: ssh exited with error status 255; restarting ssh

So it seems autossh does not accept my identiy file (-i myIdFile) when using the -f option. Why is that?

(autossh 1.4c on Raspian)

ssh