- Aug 19, 2017 Adding the public key in GitHub. In your web browser, log in to GitHub. From your GitHub profile, click Settings, then SSH and GPG keys, then New SSH key. Give the key a name. I like SYSTEM@COMPUTER (substitute the name of your machine) because the name will remind me that it’s associated with.
- Create an SSH key. From Tools, select Create or Import SSH Keys. From the PuTTY Key Generator dialog, click the Generate button. As the SSH key generates, hover your mouse over the blank area in the dialog. It may take a minute or two. When SSH key generation is complete, you see the public key and a few other fields.
Jul 22, 2019 Secure Shell(ssh) is a network that provides authentication and encrypted data communications between two machines connecting over open network such as the internet. Ssh key authentication is needed to setup agent node. Generate ssh key. Ssh-keygen ‘idrsa’ private and ‘idrsa.pub’ public key will be created in the ‘.ssh’ directory. Jul 22, 2019 After the copy of ssh-id to Slave machine Try logging into the slave machine by executing following command in Jenkins master machine ssh ‘jenkins@’. Setup of Credentials on Jenkins. On Jenkins dashboard click on the Credentials. Click on Global. Click on Add Credentials. Kind: SSH Username with private Key. Username: Jenkins. Private Key: Enter directly and paste the.
-->This quickstart shows how to install Jenkins on an Ubuntu Linux VM with the tools and plug-ins configured to work with Azure. When you're finished, you have a Jenkins server running in Azure building a sample Java app from GitHub.
Prerequisites
- An Azure subscription
- Access to SSH on your computer's command line (such as the Bash shell or PuTTY)
If you don't have an Azure subscription, create a free account before you begin.
Create the Jenkins VM from the solution template
Jenkins supports a model where the Jenkins server delegates work to one or more agents to allow a single Jenkins installation to host a large number of projects or to provide different environments needed for builds or tests. The steps in this section guide you through installing and configuring a Jenkins server on Azure.
In your browser, open the Azure Marketplace image for Jenkins.
Select GET IT NOW.
After reviewing the pricing details and terms information, select Continue.
Select Create to configure the Jenkins server in the Azure portal.
In the Basics tab, specify the following values:
Name - Enter
Jenkins.User name - Enter the user name to use when signing in to the virtual machine on which Jenkins is running. The user name must meet specific requirements.
Authentication type - Select SSH public key.
SSH public key - Copy and paste an RSA public key in single-line format (starting with
ssh-rsa) or multi-line PEM format. You can generate SSH keys using ssh-keygen on Linux and macOS, or PuTTYGen on Windows. For more information about SSH keys and Azure, see the article, How to Use SSH keys with Windows on Azure.Subscription - Select the Azure subscription into which you want to install Jenkins.
Resource group - Select Create new, and enter a name for the resource group that serves as a logical container for the collection of resources that make up your Jenkins installation.
Location - Select East US.
Select OK to proceed to the Additional Settings tab.
In the Additional Settings tab, specify the following values:
Size - Select the appropriate sizing option for your Jenkins virtual machine.
VM disk type - Specify either HDD (hard-disk drive) or SSD (solid-state drive) to indicate which storage disk type is allowed for the Jenkins virtual machine.
Virtual network - (Optional) Select Virtual network to modify the default settings.
Subnets - Select Subnets, verify the information, and select OK.
Public IP address - The IP address name defaults to the Jenkins name you specified in the previous page with a suffix of -IP. You can select the option to change that default.
Domain name label - Specify the value for the fully qualified URL to the Jenkins virtual machine.
Jenkins release type - Select the desired release type from the options:
LTS,Weekly build, orAzure Verified. TheLTSandWeekly buildoptions are explained in the article, Jenkins LTS Release Line. TheAzure Verifiedoption refers to a Jenkins LTS version that has been verified to run on Azure.JDK Type - JDK to be installed. Default is Zulu tested, certified builds of OpenJDK.
Select OK to proceed to the Integration Settings tab.
In the Integration Settings tab, specify the following values:
- Service Principal - The service principal is added into Jenkins as a credential for authentication with Azure.
Automeans that the principal will be created by MSI (Managed Service Identity).Manualmeans that the principal should be created by you.- Application ID and Secret - If you select the
Manualoption for the Service Principal option, you'll need to specify theApplication IDandSecretfor your service principal. When creating a service principal, note that the default role is Contributor, which is sufficient for working with Azure resources.
- Application ID and Secret - If you select the
- Enable Cloud Agents - Specify the default cloud template for agents where
ACIrefers to Azure Container Instance, andVMrefers to virtual machines. You can also specifyNoif you don't wish to enable a cloud agent.
- Service Principal - The service principal is added into Jenkins as a credential for authentication with Azure.
Select OK to proceed to the Summary tab.
When the Summary tab displays, the information entered is validated. Once you see the Validation passed message (at the top of the tab), select OK.
When the Create tab displays, select Create to create the Jenkins virtual machine. When your server is ready, a notification displays in the Azure portal.
Connect to Jenkins
Navigate to your virtual machine (for example, http://jenkins2517454.eastus.cloudapp.azure.com/) in your web browser. The Jenkins console is inaccessible through unsecured HTTP so instructions are provided on the page to access the Jenkins console securely from your computer using an SSH tunnel.
Set up the tunnel using the ssh command on the page from the command line, replacing username with the name of the virtual machine admin user chosen earlier when setting up the virtual machine from the solution template.
After you have started the tunnel, navigate to http://localhost:8080/ on your local machine.
Get the initial password by running the following command in the command line while connected through SSH to the Jenkins VM.
Unlock the Jenkins dashboard for the first time using this initial password.
Select Install suggested plugins on the next page and then create a Jenkins admin user used to access the Jenkins dashboard.
The Jenkins server is now ready to build code.
Create your first job
Select Create new jobs from the Jenkins console, then name it mySampleApp and select Freestyle project, then select OK.
Select the Source Code Management tab, enable Git, and enter the following URL in Repository URL field: https://github.com/spring-guides/gs-spring-boot.git
Select the Build tab, then select Add build step, Invoke Gradle script. Select Use Gradle Wrapper, then enter complete in Wrapper location and build for Tasks.
Select Advanced and then enter complete in the Root Build script field. Select Save.
Build the code
Select Build Now to compile the code and package the sample app. When your build completes, select the Workspace link for the project.
Navigate to complete/build/libs and ensure the gs-spring-boot-0.1.0.jar is there to verify that your build was successful. Your Jenkins server is now ready to build your own projects in Azure.
Troubleshooting the Jenkins solution template
If you encounter any bugs with the Jenkins solution template, file an issue in the Jenkins GitHub repo.
Next Steps
-->Most authentication in Windows environments is done with a username-password pair.This works well for systems that share a common domain.When working across domains, such as between on-premise and cloud-hosted systems, it becomes more difficult.
By comparison, Linux environments commonly use public-key/private-key pairs to drive authentication.OpenSSH includes tools to help support this, specifically:
- ssh-keygen for generating secure keys
- ssh-agent and ssh-add for securely storing private keys
- scp and sftp to securely copy public key files during initial use of a server
This document provides an overview of how to use these tools on Windows to begin using key authentication with SSH.If you are unfamiliar with SSH key management, we strongly recommend you review NIST document IR 7966 titled 'Security of Interactive and Automated Access Management Using Secure Shell (SSH).'
About key pairs
Key pairs refer to the public and private key files that are used by certain authentication protocols.
SSH public-key authentication uses asymmetric cryptographic algorithms to generate two key files – one 'private' and the other 'public'. The private key files are the equivalent of a password, and should protected under all circumstances. If someone acquires your private key, they can log in as you to any SSH server you have access to. The public key is what is placed on the SSH server, and may be shared without compromising the private key.
When using key authentication with an SSH server, the SSH server and client compare the public key for username provided against the private key. If the public key cannot be validated against the client-side private key, authentication fails.
Multi-factor authentication may be implemented with key pairs by requiring that a passphrase be supplied when the key pair is generated (see key generation below).During authentication the user is prompted for the passphrase, which is used along with the presence of the private key on the SSH client to authenticate the user.
Host key generation
Public keys have specific ACL requirements that, on Windows, equate to only allowing access to administrators and System.To make this easier,
- The OpenSSHUtils PowerShell module has been created to set the key ACLs properly, and should be installed on the server
- On first use of sshd, the key pair for the host will be automatically generated. If ssh-agent is running, the keys will be automatically added to the local store.
To make key authentication easy with an SSH server, run the following commands from an elevated PowerShell prompt:
Hma vpn license key generator for pc games. Since there is no user associated with the sshd service, the host keys are stored under ProgramDatassh.
User key generation
To use key-based authentication, you first need to generate some public/private key pairs for your client.From PowerShell or cmd, use ssh-keygen to generate some key files.
This should display something like the following (where 'username' is replaced by your user name)
You can hit Enter to accept the default, or specify a path where you'd like your keys to be generated.At this point, you'll be prompted to use a passphrase to encrypt your private key files.The passphrase works with the key file to provide 2-factor authentication.For this example, we are leaving the passphrase empty.
Now you have a public/private ED25519 key pair(the .pub files are public keys and the rest are private keys):
Remember that private key files are the equivalent of a password should be protected the same way you protect your password.To help with that, use ssh-agent to securely store the private keys within a Windows security context, associated with your Windows login.To do that, start the ssh-agent service as Administrator and use ssh-add to store the private key.
After completing these steps, whenever a private key is needed for authentication from this client, ssh-agent will automatically retrieve the local private key and pass it to your SSH client.
Generate Ssh Key Windows Git
Note
It is strongly recommended that you back up your private key to a secure location,then delete it from the local system, after adding it to ssh-agent.The private key cannot be retrieved from the agent.If you lose access to the private key, you would have to create a new key pairand update the public key on all systems you interact with.
Deploying the public key
To use the user key that was created above, the public key needs to be placed on the server into a text file called authorized_keys under usersusername.ssh.The OpenSSH tools include scp, which is a secure file-transfer utility, to help with this.
To move the contents of your public key (~.sshid_ed25519.pub) into a text file called authorized_keys in ~.ssh on your server/host.
This example uses the Repair-AuthorizedKeyPermissions function in the OpenSSHUtils module which was previously installed on the host in the instructions above.
These steps complete the configuration required to use key-based authentication with SSH on Windows.After this, the user can connect to the sshd host from any client that has the private key.