.ssh with amazon ec2 and git

Question

I have a weird issue with cloning a git repository from amazon ec2 server. It works without problems on one of my computers running ubuntu 12.04, and on the other 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 

I like that it does not recognize my configuration 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 configuration files are identical on both computers inside ~. / Ssh with the following contents:

 Host ec2server Hostname ec2XXX.compute-1.amazonaws.com User ubuntu IdentityFile ~/.ssh/mykey.pem 

If I replace 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.

Answer 1

I recently had to reinstall the system in which the working configuration was stored, and I could not replicate it, so this is not about the Linux version (very likely). What I was able to do was that I was able to use the mentioned original script to clone the repository into my home directory. Here he chose the right name, but if I went to / var / www, which I did before, he just gave me the same error: ec2server could not .... Therefore, I believe that the problem should do something with the combination permissions + teams. If anyone can figure out how to make it work, I will mark his answer as the correct answer, until I mark it as the correct one, as this is closest to the correct one.

UPDATE

I realized what the problem was: I had to change the permission to / var / www in order to be able to clone into this directory. Now it is 777 (used only for dev on the local machine).

Answer 2

This is usually a resolution issue.
chmod in the parent directories of your configuration file may be different between your two computers.
(and I'm not only talking about the closest parent .ssh , but also all parent directories)

See “ Git Checking SSH, ” but also be aware that if any of the parent directories are writable by group or world, ssh will not work.

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Please note that your second command is incorrect and should be:

 git clone [e-mail]/var/www/project.git 

no ' : ' (a ' : ' means using a config file with scp syntax)

it can only work if you have ~/.ssh/id_rsa and ~/.ssh/id_rsa.pub .
If you have mykey.pem, you need a config file for ssh to find out where your public and private keys are, which means this can only work:

 git clone ec2server:/var/www/project.git 

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Another tip (after this thread and this forum ) is to check if there is any DNS / DHCP problem (a bit like working with git for dynamic DNS ).

 Host ec2server Hostname 1xx.xxx.xxx.xxx # ip address of ec2XXX.compute-1.amazonaws.com User ubuntu IdentityFile ~/.ssh/mykey.pem