proxy servers, 617
remote system access, 399
security, 413
shells, 287
software development, 676
software management, 122
system monitoring, 319
testing teams, 679
text editors, 216
Ubuntu
commercial support, 32 – 33
IRC (Internet Relay Chat), 36
Linux Documentation Project, 33
mailing lists, 34 – 36
package listings, 32
web searches, 31 – 32
websites, 22 , 34
user accounts, 242
virtualization, 557
VPNs, 617
web server stacks, 469
web servers, 510
X Window System, 49
restarting
inetd, 584
Nginx, 500 – 501
Samba, 457 – 458
restoring
files with tar, 332 – 333