packaging-dev, installing, 669
packet writing, 84
PAM (Pluggable Authentication Modules), 232 – 233 , 242
parallel command, 197 – 198
parent directories, 136
partition strategies
installing Ubuntu, 8 – 9
planning, 5
passwd command, 144 , 155 , 225 , 241
passwords
key-based logins, 395 – 397
login, 126
management
/etc/passwd file, 217 – 218 , 229 – 230
/etc/shadow file, 218 , 231 – 232
changing in batches, 233 – 234
system password policy, 229
user security settings, 233
MySQL root user, 523 – 524
physical security and, 405
resources for information, 242
security of, 10
pastebinit command, 665
patch command, 439 – 440
patching kernel, 438 – 440
patch-kernel script, 439
PATH environment variable, 198 , 200 – 201 , 257
pattern matching
resources for information, 252