Mounting NFS in OSX Lion

A common problem in connecting NFS on OS X machines is that, they do not connect on “reserved ports” (i.e. \(<\)1024). Two ways to solve: On the NFS server, use “insecure” keyword in the /etc/exports to accept so-called insecure ports for connection. Or in OS X side, instruct to use... [more]

Balls and Bins

Assume there are \(m\) balls and \(n\) bins. We denote \(\eta_{i}^b\) the event that ball \(i\) falls into bin \(b\), and denote \(\epsilon_{ij}\) the event that balls \(i\) and \(j\) collide. [more]