installed software, 184
jobs, 189
processes, 187 – 188
system information, 176 – 177
listings
ftphosts configuration file for allowing or denying users, 584
shadow password file ftp user entry, 580
user preferences in JSON, 543
XML excerpt, 67
ln command, 173 – 174
loading, kernel, 292
localhost (loopback) interface, 348
checking availability, 348
manual configuration, 349
locate command, 174
locking data, 520 – 521
locking out of user accounts, 225
log files
Apache, 490 – 492
checking, 307 – 309
commonly used, 308 – 309
rotating, 309 – 312
LogFormat directive, 491 – 492
logical operators
AND versus OR, 520
in pdksh and bash, 272
in tcsh, 276 – 277
login, 126
from remote computer, 127 – 128