Free alternative for remotix install#

Email the public key to the server admin who can create your account and install the key. This will create two files in the folder ~/.ssh/ вЂ“ id_rsa and id_rsa.pub вЂ“ the private and public key respectively. To generate the key pair, use the following commands on your Mac/Linux system вЂ“ PuTTY has its own key generator.

Free alternative for remotix password#

The maths is hard to explain, but the fundamental point is that the keys are equivalent to a password hundreds of characters long, without you having to remember it. When you try to log onto the remote server your private key is encrypted and compared with the public key if they form a valid pair access is granted. These are cryptographically linked, and the public key is then copied to the remote machine. You generate a key pair on your laptop/desktop machine, composed of a public and a private key. We do not use passwords to secure the machine, preferring the more secure approach of cryptographic keys. For longer-term work where you want to keep a working environment open for extended periods of time youвЂ™re better served with the VNC desktop, which acts like a virtual screen on the server which you can disconnect from at will without disturbing running processes. Plain terminal and X11 sessions are fine if youвЂ™re running a quick simulation. On Linux X11 is part of the OS, and there are generally more basic terminal programs than one can shake the proverbial stick at. If you want to run a tunnelled X11 session you will, obviously, need to install an X11 server for VNC sessions I suggest Remotix on OS X and Windows. Either way, your initial access to the systems will be by using SSH from some sort of terminal program on OS X Terminal.app or your preferred X11 terminal, on Windows you might use PuTTY. You can access the machines over SSH, either as a terminal session, tunnelled X11, or by running a VNC desktop session on the server.

Free alternative for remotix code#

Note that their assistance is limited to installation and administration issues only they canвЂ™t assist with actual Geant4 code problems. Robert Ryans normally looks after them вЂ“ if heвЂ™s not available then Malachy Montgomery can also assist. The servers have no 3D hardware and are not at all suited to visualisation work. The expected mode of operation is to run compute intensive simulations on these machines and then bring results files back to your desktop for detailed analysis and 3D visualisation. Local storage is 1TB total in a RAID1 configuration, but no backups are made.В The machines run CentOS 6.5 64-bit edition with various additional packages.

The servers have twin 8-core 2.5GHz Xeon CPUs, with 64GB RAM. These notes tell you what you need to know to use them. Fred Currell has obtained a pair of Dell PowerEdge servers to act as compute nodes for his team working on medical physics simulations with Geant4.