Having worked for a fax brand.. that doesn't stop shady characters from just using stolen card numbers. It's extremely common.
236 karma · joined September 23, 2010
Source: Used to work for, then own a fax brand many years ago.
They are exceedingly polite... Granted it may be because you have to receive a visa prior and the application is pretty extensive.
On other hand, being Canadian I have been grilled several times at both Canadian and US immigration.
Make sure your SSH port is below 1024 (but still not 22). Reason being if your Linode is ever compromised a bad user may be able to crash sshd and run their own rogue sshd as a non root user since your original port is configured >1024.