Ubuntu Unleashed 2019 Edition: Covering 18.04, 18.10, 19.04

present working directory,   126 ,   139

removing,    148 – 149 ,     179

viewing disk    usage,   166 – 167

DirectoryIndex directive, 477

disable command, 463

disabling file access time, 420

disaster recovery plans, 412 – 413

disk quotas, 239 – 241 , 307

disk usage, viewing, 166 – 167 , 306 – 307

display managers, starting X Window System, 45 – 46

displaying. See viewing

dman command, 664

dmesg command, 21 , 216

DNS (Domain Name System)

advantages  of,  633 – 634

domain  names,  explained,   634 – 635

records,     636

A,   636

AAAA,    636

CNAME,   636 – 637

MX,  637

NS,  637 – 638

SOA,     638 – 639

TXT,     639

resources   for information,     641

servers,     635 – 636 ,     639 – 641

DocBook editors, 67

Docker, 571

document stores, 542 – 545