...
I sometimes have trouble downloading large files from the cluster to my portable storage device. Why is that?
Check to see what the filesystem type is on the device. If it is FAT16 or FAT32 you will experience file size limitations due to that format. Reformat the device to allow larger sized files. For example under Window chose NTFS as the format option. This will allow files larger than 2gig.
How can I view PDF documents on the cluster?
Use the program evince.
> evince your_doc.pdf
What email and web services are available on the cluster:
...