-o flag, 210, 305
O'Reilly Network BSD Developer Center, 23
obsd directory, 82–83
offset column, 55
on fxp0 label, 354
"on" keyword, 370
on-demand connection, 173–74
online help, 60
open ports, 157–58, 157–59
OpenBSD FAQ, 22
OpenBSD Journal, The, 23
OPENBSDTEST kernel file, 232
openfiles resource-limiting login.conf variable, 127
OpenSSH directory, 36
OpenSSH server, 288
OpenSSL server, 288
operating systems
See also multiboot installation
limitations of, 76
suggested combinations for installing, 74
operations, disklabel, 59–61
optimization keyword, 362
options, 89, 315
adduser batch mode, 120
command-line, 208
controlling password and login, 128–29
fdisk, 80–81
FFS mount, 302
inspection, 380
IP, 376
kernel, 216
label for kernel configuration, 226
mount, 299
mounting with, 305
packet filtering, 361–64
routing, 92–93
xvpf, 69
OPTIONS heading, 21
options(4) man page, 231
out keyword, 354, 369
outbound load balancing, 393–94
outdated applications, 339
owner field, 281