However, you can follow the same process to use a private key when using any terminal software on Linux. Note: For information about using Secure Shell (SSH) private keys on Microsoft® Windows® operating systems, see Logging in with an SSH Private Key on Windows and Generate RSA keys with SSH by using PuTTYgen. On OSX, the native ssh-add client has a special argument to save the private key's passphrase in the OSX keychain, which means that your normal login will unlock it for use with ssh. On OSX Sierra and later, you also need to configure SSH to always use the keychain (see Step 2 below).
You generate an SSH key through Mac OS X by using the Terminal application. Once you upload a valid public SSH key,Gerrit can authenticate you based on this key.
An SSH key consists of a pair of files. One is the private key, which you should never give to anyone. No one will everask you for it and if so, simply ignore them - they are trying to steal it.The other is the public key. When you generate your keys, you will use
ssh-keygen to store the keys in a safe locationso you can authenticate with Gerrit.
To generate SSH keys in Mac OS X, follow these steps:
Warning
You will need to enter the passphrase a second time to continue.
After you confirm the passphrase, the system generates the key pair and you will see output like this:
Your private key is saved to the
id_rsa file in the .ssh subdirectory of your home directory and is used to verifythe public key you use belongs to your Gerrit account.
Warning
Never share your private key with anyone! Ever! We mean it!
Your public key is saved to a file called
id_rsa.pub in the .ssh subdirectory of your home directory. You can copyit to your clipboard using the following command:
Now you can head over to Gerrit, go to settings and paste your public key as described here.
Gerrit is using the special port
29418 instead of the default SSH port 22 which has to be configured accordingly. This can be done in your local ~/.ssh/config file which would contain the following sections then:
Testing your connection:
Connect to a server by using SSH on Linux or Mac OS X
This article provides steps for connecting to a cloud server froma computer running Linux® or MacOS® X by using Secure Shell (SSH).It also discusses generating an SSH key and adding a public key tothe server.
Introduction
SSH is a protocol through which you can access your cloud server and runshell commands. You can use SSH keys to identify trusted computers withoutthe need for passwords and to interact with your servers.
SSH is encrypted with Secure Sockets Layer (SSL), which makes it difficultfor these communications to be intercepted and read.
Note: Many of the commands in this article must be run on your localcomputer. The default commands listed are for the Linux command line orMacOS X Terminal. To make SSH connections from Windows®, you can use a clientsimilar to the free program, PuTTY.To generate keys, you can use a related program, PuTTYGen.
Log in
Using the Internet Protocol (IP) address and password for your cloud server, log in byrunning the following
ssh command with username@ipaddress as the argument:
The system prompts you to enter the password for the account to which you’reconnecting.
Remote host identification
If you rebuilt your cloud server, you might get the following message:
One of the security features of SSH is that when you log in to a cloudserver, the remote host has its own key that identifies it. When you tryto connect, your SSH client checks the server’s key against any keysthat it has saved from previous connections to that IP address. After yourebuild a cloud server, that remote host key changes, so your computerwarns you of possibly suspicious activity.
To ensure the security of your server, you canuse the web console in the Cloud Control Panel to verify your server’s new key.If you’re confident that you aren’t being spoofed, you can skip thatstep and delete the record of the old SSH host key as follows:
Mac Osx Generate Ssh Key Online
On your local computer, edit the SSH
known_hosts file and remove anylines that start with your cloud server’s IP address.
Note: Use the editor of your choice, such as
nano on Debian or theUbuntu operating systemor vi on RPM or CENTOS servers. For simplicity, this article just uses nano . If you prefer to use vi ,substitute vi for nano in the edit commands.For more on using nano , seehttps://support.rackspace.com/how-to/modify-your-hosts-file/.
If you are not using Linux or MacOS X on your local computer, thelocation of the known_hosts file might differ. Refer to your OS forinformation about the file location. PuTTY on Windows gives you theoption to replace the saved host key.
Generate a new SSH key pair
You can secure SSH access to your cloud server against brute forcepassword attacks by using a public-private key pair. A public key is placed onthe server and a matching private key is placed on your local computer. If youconfigure SSH on your server to accept only connections using keys,then no one can log in by using just a password. Connecting clientsare required to use a private key that has a public key registered onthe server. For more on security, reviewLinux server security best practices.
Use the following steps to generate an SSH key pair:
Add the public key to your cloud account
To make it easy to add your key to new cloud servers that you create,upload the public key to your cloud account by following these steps:
If you want to add the key manually, instead of by using the Control Panel, reviewLinux server security best practicesand use the following command:
Create a new server by using a stored key
When you create a new cloud server, you can add a stored key to the newserver.
Add the key to an existing server
You can’t use the Cloud Control Panel to add a public key to anexisting server. Follow these steps to add the key manually:
After you have added the public key to the authorized_keys, you can make an SSHconnection by using your key pair instead of the account password.
Shortcut configuration
Use the following instructions to set up a connection shortcut by creating a~/.ssh/config file on your local computer and adding your server and keydetails to it.
Troubleshooting
If you have trouble making a new connection after you restart theserver, use the following steps to help you resolve the issue:
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Mac Os X Generate Ssh Key Pair
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