.ssh config with amazon ec2 and git
Solution 1
Recently I had to re-install the system which held the working configuration and I have not managed to replicate it, so it's not about the linux version (very likely). What I managed to do, is that I managed to use the mentioned original script to clone the repository into my home directory. Here it picked up the name correctly, but if I navigated into /var/www, what I was doing before, it just gave me the same error: could ec2server not found ... . So I figure the problem has to do something with the permissions + commands combination. If anyone can figure it out how to make it work, I will mark he's response as a correct answer, until then I am marking mine as the correct one, since this is the closest to the correct.
UPDATE
I figured it out what was the problem: I had to change the permission on /var/www folder in order to be able to clone into that directory. Now it's 777 ( used only for dev on a local machine).
Solution 2
It usually is a permission issue.
The chmod
on the parent directories of your config file might be different between your two computers.
(and I am not talking about just the immediate parent directory .ssh
, but also all the parent directories)
See "Git SSH authentication", but also know that if any of the parent directories is writable for group or world, ssh won't work.
Note also that your second command is not right, and should be:
git clone [email protected]/var/www/project.git
no ':
' (a ':
' means using a config
file, with an scp
-like syntax)
it can only work if you have ~/.ssh/id_rsa
and ~/.ssh/id_rsa.pub
though.
If you have mykey.pem, then you need a config
file for ssh to know where are your public and private keys, which means only this can work:
git clone ec2server:/var/www/project.git
One other chack (after this thread and this forum) is to check if there is any DNS/DHCP issue (a bit like in "Working with git behind a dynamic DNS").
Host ec2server
Hostname 1xx.xxx.xxx.xxx # ip address of ec2XXX.compute-1.amazonaws.com
User ubuntu
IdentityFile ~/.ssh/mykey.pem
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Pio
"A day without sunshine is like, you know, night." SOreadytohelp
Updated on June 08, 2022Comments
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Pio almost 2 years
I have a strange problem with cloning a git repository from an amazon ec2 server. It works without any problems on one of my computers running ubuntu 12.04, while on another one using 12.10 it gives me an error:
ssh: Could not resolve hostname ec2server: Name or service not known fatal: The remote end hung up unexpectedly
It's like it is not recognizing my config file. I use the following git command to clone :
sudo git clone ec2server:/var/www/project.git
or
sudo git clone ec2xxx.compute-1.amazonaws.com:/var/www/project.git
The two config files are identical on both computers, inside the ~./ssh with the following content:
Host ec2server Hostname ec2XXX.compute-1.amazonaws.com User ubuntu IdentityFile ~/.ssh/mykey.pem
If I substitute the ec2server with the actual address I get the following error:
Cloning into 'project'... Permission denied (publickey). fatal: The remote end hung up unexpectedly
Thanks in advance.
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Pio over 11 yearsBut the parrent directory is the home directory
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VonC over 11 years@Pio You mean your
config
file in in/home/yourLogin
, instead of/home/yourLogin/.ssh
? -
VonC over 11 years@Pio see stackoverflow.com/a/10042145/6309 or stackoverflow.com/a/8172628/6309 for examples of config files for ssh.
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VonC over 11 years@Pio then, my answer stands.
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Pio over 11 yearsYes, the permissions were different. I made them to be the same. But still, the same error pops up. I think there might be a misconfiguration in git since it does not recognize the hostname of the server if I do not explicitly use it.
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Michel Feldheim over 11 years@Pio Just fyi
~
is a shortcut for the current users home directory (e.g./home/youruser/
). Are you able to SSH into the box using this key and username? (e.g. using Putty from a windows machine) -
Pio over 11 yearsYes, I am aware of the meaning of ~ . I am also able to log into the amazon ec2 server via ssh. It works perfectly.
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VonC over 11 years@Pio I have edited my answer: can you check if
git clone [email protected]/var/www/project.git
works on both your computers? (source: kuttler.eu/post/git-clone-ssh-could-not-resolve-hostname or yuanjie.name/entry/git-complains-ssh-hostname-resolving) -
Pio over 11 yearsI tried it, but it is not working. The syntax is not right: since like this it searches for a repository named [email protected]/var/www/project.git and gives me the error of not finding the repository. If I put : between then I get the error mentioned in my post of permission denied.
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VonC over 11 years@Pio I understand. It is best then to stick with the scp-syntax and your config file.
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VonC over 11 years@Pio following openshift.redhat.com/community/forums/openshift/…, would using the IP instead of the amazon server name works better? I have edited the answer to mention that possibility.
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VonC over 11 yearsSounds good, and it works for you, so +1. My answer was not specific enough.
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Marina Martin about 11 yearsAfter reading 100 different articles, using "git clone ec2server:/var/www/project.git" solved it for me. THANK YOU.