Like many sysadmins using Unix workstations, I spend a lot of timerunning xterm s. Given that most of the time the remote X program Istart with my rxexec script is an xterm , it'sno surprise that I wrote another script to automate all of the magicinvolved, called rxterm .

Rxterm's basic job is to start an xterm on a remote system with all ofthe right options set for it; for instance, so that the xterm titleand icon title have the name of the system that

Earlier, I mentioned that modern NFSservers don't have a comprehensive list of NFS filesystem accesspermissions stored in the kernel; instead they have a cache andsome sort of upcall mechanism where the kernel will ask mountd if a given client has access to a given filesystem if necessary.I've recently been investigating how Solaris 10 handles this, sohere's what I know of the kernel authorization cache:

First, the Solaris kernel does cache negative entries (this IP addressis not allowed to access this