Ssh key on multiple machines. How to create ssh keys and manage multiple keys

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How To Set Up SSH Keys

ssh key on multiple machines

I have no problem managing a lot more then a dozen systems using a couple of home brew scripts. If you have multiple machines, you could copy the keys to each of the machines and reuse them, but I'd advise doing the leg work to generate 1 key per machine and repo. Additionally, if you limit yourself so that one host is your admin machine, you can limit the number of keys that need to be trusted by the other hosts. Please try to only make helpful replies to questions. On Windows 7, I want to manage multiple github users with passphrase-protected ssh keys. Ease of use is very important.

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security

ssh key on multiple machines

Also, the more places the private key is stored say, your work computer, your laptop, and your backup storage, for example , the more places there are for an attacker to go to grab a copy. An easy-to-use, pretty good security mechanism is far better than a hard-to-use security mechanism that is in theory highly secure because in practice, if is hard to use, it probably won't be as secure as you expect once people find a way to bypass the security mechanism so they can get their work done. If there are existing keys, you can either use those and skip the next step or backup up the old keys and generate new ones. Hi, You will need powershell to achieve the above scenario. Instead of changing the remote url in.

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How to conveniently manage SSH keys across multiple machines

ssh key on multiple machines

When you log into one of the gateway machines after uploading your key, you will be prompted to enter the passphrase for your private key the passphrase and private key remain on your local machine and never be transmitted over the network. By default, Git automatically performs compression when sending or retrieving data, but Mercurial doesn't. Contents of it should looks something like: Host myserver HostName example. Surely it doesn't outbeat a per-server configuration as in other answers, but at least you won't have to add a configuration for all and every server you connect to! This allows users A, B, and C to use the key without issue. Now it should work, test it by exiting your box and ssh back into it, there should be no password prompt.

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How to conveniently manage SSH keys across multiple machines

ssh key on multiple machines

Otherwise, you will be prompted to enter the passphrase. As for universally-applicable guidelines on how to run your security: there are none. You can add the same key to multiple remote servers. If you don't see publickey in the list, it may well be because the client or server don't want to exchange that key or those versions of keys. As long as the private key is in a secure system, then there is no problem having it go to multiple machines. But if it exists, it reuses the latest connection that created that file I'm not pretty sure how exactly works, but it's something like that.

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privacy

ssh key on multiple machines

You will have a lot more keys to handle, but you will be less vulnerable if one gets compromised. You can even have it kicked off with a. Please make sure you have the correct access rights and the repository exists. For example: git clone bitbucket. Having a single key at multiple locations 1. You could do that and it will technically work with a few minor issues: Different machines, even with the same private key, will report a different fingerprint to the clients you will literally see a message saying that you are possibly a victim of a hacking attempt so you will need to disable strict host checking which creates a huge security gap.

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SSH using keys

ssh key on multiple machines

If you've got a server that only speaks version 1, and the client is configured to only use version 2, then they can't talk to each other. Troubleshooting The most common problem with a key-based authentication is that the file permissions are wrong. Anytime I try to clone, push, pull etc. You mention something about managing what privileges non-humans have. So that's worth considering as well. Then, when you create a new Droplet, you can choose to include that public key on the server. Your employees will put up with a certain amount of annoying compliance mandates e.

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How To Set Up SSH Keys

ssh key on multiple machines

Reading your answer, the solution may be to rethink your script architecture. I'd really like to not have to create another keypair to keep track of. The two most popular mechanisms are passwords based authentication and public key based authentication. I don't know if I'm missing something important in that statement. That means, if I am with another computer, I would not be able to use that private key to ssh. You can tell your ssh client that each repository lives in a different github.

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security

ssh key on multiple machines

Your public key can be shared with anyone, but only you or your local security infrastructure should possess your private key. You would have to retrieve the Fingerprint from the two. Thanks for contributing an answer to Super User! On a mid-size system I've created a central server and scripts to push out and maintain ssh infrastructure. There will be two public keys authorized at S1. If you've already added keys, you'll see them on this page. The same is true for cloning public repositories from github.

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SSH using keys

ssh key on multiple machines

The level of granularity is up to you. It's not clear to me that this is such a big deal that you'd make your users lives harder because of it. It's not tied to the machine, the macbookpro at the end is just a comment string, you can change it to anything you like. Step Three—Copy the Public Key Once the key pair is generated, it's time to place the public key on the server that we want to use. In fact, the server and client can refuse to talk to older versions.

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How to set up an SSH key and use it for GitLab

ssh key on multiple machines

Add more servers after the first one, if needed. If you have any question or feedback, feel free to leave a comment. Thanks for contributing an answer to Server Fault! Edited: If you own both machines, you may share your private key. So your instinct will be to grab that key and add it to repo2's Deploy keys, but github. Additionally, some of those machines need access to each other e. When the two match up, the system unlocks without the need for a password.

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