valid users option, Samba, 770
/var/log directory, NFS sharing, 761
/var/spool/mail, sharing (NFS), 760
VersionSort option, httpd.conf indexing, 861
Very Secure FTP Server, 819
vi text editor, 183
command-line editing and, 157
saving/quitting, 185
Web pages, 369
video DVDs, launching, 117
Vivitar digital cameras as storage device, 361
.vms files, Sox utility, 335
VPN (Virtual Private Network) configuration, 703–706