![]() ![]() This means that any curious and/or nefarious individual can see what we are doing or typing, this includes entering passwords. When asked “Would you like to enter a view-only password (y/n)?” just press enterĬurrently our VNC connection settings are not secure.While still in PuTTY terminal type “vncpasswd”.This is on purpose so no one physically looking at your screen can see what you are typing. When entering your new passwords, it will appear as if nothing is being entered. While still in PuTTY terminal type “sudo passwd exouser”.The username for your account is “exouser”. This will make it so we do not need our key file to login anymore. ![]() Let’s create an overall password for your account. There are two passwords associated with your virtual machine, one for the user account, and one for the VNC viewer. Setting passwords and securing connections If you copy your password with control-c, you can paste it quickly by right clicking on the PuTTY window Enter the provided password and hit enter.You will be greeted with a security warning, click “accept”.Enter and the provided ip address in first textbox and then click “Open”.If you are having trouble locating the program, you can also access it where it is installedĬonnecting to your instance is easy and quick PuTTY can be found on the lab computers in the class software folder If you already have a different method to SSH into your instance, feel free to use that instead. For Windows users we will be using PuTTY. Each method has its pros and cons depending on how you plan to use your instance. There are many ways to connect to your instance via SSH on a Windows computer. If you are using a Mac (or Linux) computer to connect please skip to the “Connecting to your Instance” section. It is much better when the network is slow or your VNC connection is not working.įor a windows computer see the section immediately below. While not necessary for this class, following this initial setup, this would be the standard way to connect to a Linux server for many people. You can learn how to connect to your instance via an SSH text connection. With a VNC you will be able to interact with your virtual machine as if it was in front of you. A VNC connection allows the screen of your virtual machine to be displayed on the screen of your local computer. Using a Virtual Network Connection(VNC).A SSH connection is a good choice if your network connection is slow or if you don’t need any graphical display. This allows you to send and receive text from your virtual machine’s linux “console”. Using a secure shell(ssh) text connection.There are two possible ways to connect to your instance. This will be your own virtual sandbox where you will explore the computational environment and complete the lab assignments. We have gone ahead and created an instance for each person. ![]() If you are curious about what version of Linux we are using and how we created the Jetstream2 virtual machine, please see this document. ![]() I wouldn’t bother doing that unless you have trouble getting TigerVNC running on your own computer. You can check the schedule of these rooms to see when they are available.Īdditionally, you can connect to the computers from your personal computer using the UC Davis Virtual Lab. If you want to use other campus computer rooms, VNC Viewer has been installed on computers in: Alternatively, the Java version VncViewer-1.12.0.jar should work on any system.Or vncviewer-1.12.0.exe for a 32 bit system.Try vncviewer64-1.12.0.exe for a 64 bit system.For PCs you want “vncviewer” not the full “TigerVNC”.Or, if you use homebrew on your Mac you can open terminal and type brew install tigervnc-viewer -cask.For Macs, download and install TigerVNC-1.12.0.dmg.To use your own computer you need to install VNC Viewer on your computer. It is possible to connect to your Jetstream2 virtual machine from your own personal computer. We will run virtual Linux machines (Instances) on Jetstream2 servers and then use a virtual network connection (VNC) to display the “desktop” of the virtual machine to be displayed on our local computer. Jetstream2 is a cloud computing resource provider in partnership with XSEDE. To overcome this problem we will run Linux in a virtual cloud environment. Since the computer lab machines and many students’ computers run Windows this presents a problem. For this class we will work in a Linux environment. Most bioinformatics software runs on Linux or unix (including Mac) operating systems. ![]()
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