Ssh to VM from host local machine (mac OS)

gg4u 2019-11-24 19:42:10 UTC #1

Keywords: OpenEdX - Virtual Machines - Technical issue - Connectivity (SSH/FTP)
Description:
I want to connect to the VM from my machine terminal.

I can ping the IP of the VM, cannot ssh into it.

I tried to:

settings of VirtualBOX:
created Vboxnet1, Vboxnet0

I had to create another one to see an IP assigned to my local network.

I n VM setting, I added Adapter, as per instruction.

I tried to:

uncomment port 22 in

/etc/ssh/sshd_config

I tried to eventually attempt using keys, but COULD NOT find a string as RSAAUTHENTICATION in that file (only the publicauthentication) AND I could not understand how to create a key on my host machine matching with the public key on my VM.
And I really would like to avoid using keys.

I followed the guides:

[https://docs.bitnami.com/virtual-machine/faq/administration/connect-remotely/]

tried to setup manually:
sudo ifconfig eth0 <VM_IP> netmask 255.255.255.0 up

BUT got error:

SIOCSIFADDR no such devices.

Seems like no eth0 device is there.

Checked my ip again with:

ip a

Found that device corresponding to the VM IP is called :

enp0s3

Tried:

sudo ifconfig enp0s3 <VM_IP> netmask 255.255.255.0 up

seems it is finally all set, BUT STILL

from my local machine:

ssh bitnami@<VM_IP> connection refused
ssh bitnami@<VM_IP> -p 22 connection refused

Please not that if I do:
ssh bitnami@192.168.1.1

it will ask for password, but pw 'bitnami' will not be enough:
Permission denied (publickey,password).

It is really frustrating.

jota 2019-11-25 09:00:50 UTC #2

Hi @gg4u,

Thank you for using Bitnami. You can click on the "Open Terminal" button to access the command line of the OS X VM

If you want to access the VM from a different program, you can use the key that is inside the .bitnami folder

ssh -i '~/.bitnami/stackman/machines/APP_NAME/ssh/id_rsa' 'root@IP'

Please note you will need to substitute APP_NAME with your name of the folder

Happy to help!

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gg4u 2019-11-25 14:48:35 UTC #3

Hi @Jota, I don't understand:

Which Open Terminal Button from host machine? Im using mac 10.9, not X.

Anyway, I can read the IP of the guest VM (192.168.1.117)

~/.bitnami/ folder does not exist on the VM.

Nor a directory stackman:

find / -name 'stackman*' > no such name or directory

I can see a bitnami_credentials in /home/bitnami folder, with default user and password.

I can I connect from my local host machine (Mac) to the VM (Debian) ?

ssh -i '~/.bitnami/stackman/machines/APP_NAME/ssh/id_rsa' 'root@IP'
does not work, for I cannot find that path

tried from my host:
sudo -i '/home/bitnami/.ssh/id_rsa' 'root@192.168.1.117'

it says /home/bitnami/.ssh/id_rsa no such file or directory (though I can see them on the VM)

richb201 2019-11-25 16:04:13 UTC #4

Hi. After spending the last 2 months trying to get support on setting up SSH between a host and the bitnami VM, I have come to the conclusion that the bitnami documentation (at least for Linux and probably for Mac) is lacking some important steps. I am trying to set up Key Based authentication but the documents are not clear about whether things need to be run on the Guest of the Host. At first I thought I needed to run ssh-keygen on the guest. "Log in to the server console as the bitnami user" would imply this, right? This assumes by "server" they mean the guest. But now I think I needed to run ssh-keygen on the Host and UPLOAD the created key to the guest's sshd-config. I see you have also had some trouble with uncommenting out lines in sshd_config. It seems that is you follow the directions EXACTLY you will not be able to transfer the key from the host to the guest via passwordauthentication.

gg4u 2019-11-25 16:36:09 UTC #5

SSH means establishing a remote connection with a secure authentication.

That means you run SSH from your host to connect to a remote machine, in this case the VM.

Yes, I am struggling also because of trivial but very annoying thing, due to the use of VM, as example I cannot copy past from my local machine into the VM window.

YOu do not necessarily have to use keys to connect via SSH.
You can also connect to the remote machine knowning the IP and password to get in and I'd prefer not to use keys for simplicity, but not wokring for me either.

gg4u 2019-11-25 16:41:19 UTC #6

I agree with you documentation can sound confusing, especially for beginners. But I'm not native English .... ... and neither Bitnami core team maybe ... (Spanish? ) ... must be that
* please note this comment is just for kidding and bringing up some humour!! Grateful to all support given here. *

jota 2019-11-26 08:09:40 UTC #7

Hi @gg4u,

Sorry for the confusion here, I thought you were using an OS X VM (a special VM we provide for OS X). If you are using a regular VM with VirtualBox or VMware, you will need to do the following:

Enable the SSH service: You just need to access the command line of the VM and run the commands in this guide

https://docs.bitnami.com/virtual-machine/faq/get-started/enable-ssh/

The command to start the ssh daemon shouldn't return any error message and you can test the ssh connection by running this command inside the VM

ssh bitnami@localhost

It should ask you for the bitnami's password (the same one you set when starting the VM)

It seems you already configured the SSH daemon in the vm, can you get its status?

sudo systemctl status ssh

Please note that all these commands need to be run inside the VM (using virtualbox, vmware or the virtualization program you have).

Once you test that the SSH server works properly, you can try to access the VM from your OS X machine.

https://docs.bitnami.com/virtual-machine/faq/get-started/connect-ssh/

You will need to get the VM's IP and then run the ssh command

ssh bitnami@IP

If you are trying to connect different machines using an internal network, if both machines are in the same network, you should have SSH access from any of them to the other one.

Happy to help!

PS: You do not need a .pem or SSH keys. You can simply use the user's password when accessing the VM. If you can't, please share some screenshots

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Where are the instructs for creating .pem file for Linux systems?

gg4u 2019-11-26 09:35:22 UTC #8

@jota, indeed there is smtg not working out in my configuration:

After inspecting at the light of the sun with your suggestions, instead of working late, I figured out the folder
/etc/ssh/sshd_not_to_be_run had not been actually removed as I thought, following instruction at : https://docs.bitnami.com/virtual-machine/faq/get-started/enable-ssh/

That evening I probably run the command not in sudo, and oversight the message, and carried on.

I then reset the configurations in /etc/init.d/ssh_config/ not to ask for keys.

Now back again to normality I can connect from my local machine.

Thank you for the tips.

A comment, if I can add, for user experience -
my use case in choosing a VM from bitnami is because I want to test open edx enviroment.
I tried three times to set it up, but failed because I have an old machine that does not support last versions of dockers. Tried to set up a VM with Ubuntu and failed, and then discovered there is also Bitnami VM, but it is based in Debian.

All of this to convey the message of my working context: I am a user that is facing multiple challenges (new to openedx, not used to work with VMs, documentation of edx is overwelming, links to older versions not present, etc.), and actually my final purpose is simply to get things up and running to figure out edx environment.

I think the FAQ documentation is clear enough for a person used to work with, and I understand you can aggregate some concepts common to different VMs (for wordpress, edx, etc.) for simplicity and management but, from my point of view as a user, a too long documentation or not tailor to a specific learning path, can get confusing.
(Also because edx documentation is huge and not so straightforward).

As example, here:

https://docs.bitnami.com/virtual-machine/faq/get-started/enable-ssh/

I can read how to enable SSH, I did a mistake (mentioned above) but the following chapter is about how to set up keys.
I know keys would not be necessary, but I attempted to do it flollowing instructions when things not work.
Your message here is simpler, and in documentation one may want to add it, and specify setting up keys as an option.
Also, in getting started, I see PhPmyAdmin , and examples based on Wordpress, not related to my use case : I would find much useful to add simple use cases tailored to VM applications - as per my example, a tutorial to get into edx, and create a new simple application - DigitalOcean is real good in creating documentations, in my point of view.

So wrapping up, if you would like to consider my comment at Bitnami, you may wish to consider:

breaking down the documentation in smaller paragraphs (e.g. SSH : if you have windows > here, mac > here, instead of one full long chapter) and
create tutorials with simple learning paths, to navigate into the system.

All in all, I hope to have provided some positivie feedback

Second feedback

You mentioned Mac OS X VM

I could not find it here:
https://bitnami.com/stack/edx/virtual-machine

Debian was only option for me... ?
(The .OVA machine)

Third feedback

This is about my other question, the purpose for setting up the VM
If you can help, much appreciated:
here the thread
https://community.bitnami.com/t/add-a-foo-application-for-the-open-edx-platform-django/71946/5

jota 2019-11-27 07:40:03 UTC #9

Perfect @gg4u. I'm glad to hear that

Yes, of course! And thanks for providing feedback.

Noted, I'll forward this information to our documentation team.

The OS X VM is not a regular VM. It should appear in the installers' page but this is not the case in edX. For example, you can see we support it for WordPress

https://bitnami.com/stack/wordpress/installer

Yes, that's the only option you have to run edX in OS X.

Our team is currently taking care of that topic, so let's continue the conversation there.

Thanks

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