Nih Vpn Software Vpn For Mac
There are several secure options for connecting to the NIH HPC Systems from a Windows, Mac or Linux desktop. The hostnames for the systems are:
| Host | Hostname | Accessible by | Purpose |
|---|---|---|---|
| Helix | helix.nih.gov | All HPC users | data transfer |
| Biowulf | biowulf.nih.gov | All HPC users | cluster headnode |
To connect to any of the three HPC systems listed above you will need to be either
- physically connected to the wired NIH network or the NIH-Staff wireless (authentication required)
- connected to the NIH VPN (requires VPN client installed)
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Nih Vpn Access Request
For command line (text based) applictions you will need an SSH (secure shell)client to connect. For graphical applications agraphical connection is required. We recommend the cross platform NX client.
A host key is a cryptographic key used for authenticating computers in theSSH protocol. Host keys are key pairs, typically using the RSA, DSA, or ECDSAalgorithms. Public host keys are stored on and/or distributed to SSH clients,and private keys are stored on SSH servers.
When connecting to a new server for the first time ssh clients usuallyreport the fingerprint of a host key and ask if they user would like to store thepublic host key to verify future connections. Below are the fingerprintts ofthe current biowulf and helix public host keys. If the fingerprint presented toyou matches the fingerprint below it is safe to accept the key and store it.Some clients will present an md5 fingerprint, others a sha256 fingerprint.
md5 key fingerprints
sha256 key fingerprints
SSH
There are several SSH clients available on Windows. PuTTY is a popular option amongst our users. PuTTY is an SSH and telnet client, developed originally by Simon Tatham. PuTTY is open source software and is developed and supported by a group of volunteers.
Installing PuTTY
Installation of PuTTY may require administrative privileges. Please consult with your local system administrators regarding installation policies.
Because PuTTY is continuously updated, you should download the latest version from http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html. The download page includes a self contained executable (putty.exe) and an installer (putty-<version>-installer.msi). The installer will require administrative privileges.
Once PuTTY is installed, start PuTTY by double-clicking the icon created on your desktop or use your search bar to locate the executable
Setting up sessions with PuTTY
When starting PuTTY, you will see a dialog box. This dialog box allows you to control everything PuTTY can do. In the 'Host Name' box, enter helix.nih.gov or biowulf.nih.gov.
You don't need to change most of the configuration options, but here are a few suggestions for Helix systems' use:
The Backspace Key
Sid meier's civilization v: gods and kings download for mac. The Window Title
Enable X11 Forwarding
PuTTY can forward the X11 protocol which can be used together with an X11 server on your computer to run graphical applictions. However, we recommend using NX for this purpose
After making your configuration changes, be sure to save the session so you will not have to reconfigure PuTTY each time.
When first connecting to a new server, PuTTY will report that the server's host key is not cached in the registry yet. It will present the fingerprint of the host key. If the fingerprint matches one of the fingerprints shown above it is safe to answer 'yes' and store the key in PuTTY's cache
Creating icons on your Windows desktop
Right-click the PuTTY icon on your desktop, then left-click 'Properties'.
In the 'Target' box under the Shortcut tab, type -load 'helix' or -load 'helix.nih.gov' after putty.exe:
Click on the 'General' tab and change the name from PuTTY to helix, then click the OK button.
Warlock 2: the thrilling trio for mac. Double-click on the helix icon to login to helix
To create an icon for any of the other systems, be sure to make a copy of the helix or PuTTY icon, then change the properties of the copy.
Documentation
For more in-depth knowledge of PuTTY, see the PuTTY Documentation Page
Graphical connection
We recommend NX for graphical connections. NX providesmore stable, performant and reliable graphics performance than otherplatforms.
back to topSSH
Nih Vpn Software Vpn For Mac Windows 10
Mac OS X includes an ssh client. In a terminal window, typessh hostname to start an ssh session to a host. If your username onyour local system is different from your NIH domain username, you will need totype ssh username@hostname
When first connecting to a new server, ssh will report that the server'shost key is not known. It will present the fingerprint ofthe host key. If the fingerprint matches one of the fingerprints shown above it is safe to answer 'yes' and store thekey. Some clients are configured to reject unknown keys outright. In thatcase you can include -o StrictHostKeyChecking=ask.
Graphical connection
We recommend NX for graphical connections. NX providesmore stable, performant and reliable graphics performance than otherplatforms.
As of OS X 10.6, XQuartz is no longer included with the Mac OS and NIH HPC staffdoes not recommend using it. If you choose to use XQuartz, you can add the -Yoption to your ssh command to forward the X11 connection.
SSH
Linux automatically includes SSH software. In a terminal window, type ssh username@hostname to start an ssh session to a host, where username is your NIHdomain username. A sample session will be exactly like the Mac sessiondisplayed above.
When first connecting to a new server, ssh will report that the server'shost key is not known. It will present the fingerprint ofthe host key. If the fingerprint matches one of the fingerprints shown above it is safe to answer 'yes' and store thekey. Some clients are configured to reject unknown keys outright. In thatcase you can include -o StrictHostKeyChecking=ask.
Graphical connection
Your Linux distribution automatically installs X11. In a terminal window,type ssh -Y username@hostname to start an ssh session to a host,where username is your NIH domain username.
Sample session:
At this point you are logged on to Helix and can run Xwindows programs. Totest, type xclock at the prompt. You should see a clock window appearon your desktop.
Alternatively, you can also use the NX cross platform client
back to top- Are you on the NIH network or the VPN?
- If not, you will not be able to connect to Biowulf or Helix. A simple testif you are on VPN is to point your web browser to this test page. If you see 'Accessforbidden!', then you are not on the VPN.
- Is your Biowulf/Helix account locked?
- Your account may be locked due to inactivity. If you are on the NIH networkor the VPN, you can check the status and unlock it yourself by going to the User Dashboard. If you are unable to access thedashboard, send email to staff@hpc.nih.gov asking for your account to beunlocked.
If you are on the VPN or the NIH network, and your account is unlocked, and you are still not able to connect, please send the following information to the HPC staff (staff@hpc.nih.gov):
- what kind of computer and Operating System you’re connecting from
- what software are you using to connect and which version? (e.g. putty, command-line ssh, NX)
- what was the error message?