T

tables, updating partition, 85 tabs converting to spaces, 273 replacing, 271 tac command, 60, 272 tail command, 51, 60, 272-273 tainting kernels, 723-724 tar archives, 73, 369-371 targets iptable, 604 netfilter, 604

-Tascii, groff and, 289

tasks, automating. See automating tasks

Taylor, Dave, 405

TCP/IP. See Transmission Control

Protocol/Internet Protocol (TCP/IP) TCP (Transmission Control Protocol), 163, 577 tcpdump command, 553-555 tcpdump tool, 433 tech support emacs, 318

Linux enterprise hardware, 666 Novell, 666

operating systems and, 470 software, xliii telinit command, 115 Telnet security and, 424, 425 Telnet servers, 73 testing POP3 with, 492 testing with, 426-427 virtual terminal services and, 425 testing bonnie/bonnie+—+ for filesystem testing, 98

connection to Internet, 38-39

DHCP, 552

file tests, 402-403

LDAP server, 632-633

MTAs, 468-470

online updates, 38-39

POP3, 492

with Telnet, 426-427 testparm utility (Samba), 516 TeX

basics of, 295 DVI files and, 361 files, 362 text consoles, switching, 201

text editors emacs. See emacs (editor macros) overview of, 297-298 variety of, 298 vi/vim. See vi/vim text editor text, manipulating copying/pasting (vi/vim), 304-305 deleting (vi/vim), 302-304 editing with vi and emacs, 61 -62 fields from text files, working with, 281-285 lines from files. See lines from files navigating (vi/vim), 300-302 replacing, 285-289, 311 text files, formatting, 289-291 text from other file formats, 293-296 TFTP (Trivial FTP) server, 262 The Cathedral and the Bazaar, xxxii The Hitchhiker's Guide to the Galaxy, xxxiv themes (KDE), 211 thin client version of SLED, 731 Thunderbird, 500 time to live (TTL), 565 time zone, selecting at installation, 12, 25 TLDs. See top-level domains (TLDs) tools. See also network tools for booting. See system rescue and repair command-line tools (CUPS), 534-536 DHCP, 540

PADL migration tools, 633 for partitioning. See partitions for printer setup (YaST), 537 for text manipulation, 269 -270 top-level domains (TLDs) basics of, 558 Postfix, 484 topic-specific sites, 154-155 Torvalds, Linus, 447

touch command, 67 tr command, 287-288 traceroute, 436 traffic allowing ICMP, 612 loopback (firewalls), 612 redirecting (firewalls), 611 trailing spaces, LDIF files and, 635 Transmission Control Protocol/Internet Protocol (TCP/IP), 161-172 ARP and, 422 basics of, 160-161

connection vs. connectionless protocols, 163 DoD model, 165 IP addresses. See IP addresses ISO OSI model, 161-164 packets, 601-603 ports, defined, 427 Transmission Control Protocol (TCP), mounting

NFS and, 577 transport layer basics of, 162

connection vs. connectionless protocols, 163 uses of, 164 transport_maps (Postfix), 475 trees directory trees, archiving, 369 directory trees, backing up, 371 storing information in (LDAP), 628, 629, 630, 631 Tridgell, Andrew, 501-502 Trivial FTP (TFTP) server, 262 Trolltech, 195 troubleshooting

DHCP clients, 551-553 DHCP servers, 553-555 IP networks configuration, 435-436

Linux networks, 435-436 logging and, 175

mounting NFS shares and, 584-585 runlevels, 133-135 TTL (time to live), 565 tune2fs command, 96

U, defined, 665

-u option, skipping duplicate lines and, 275 Ubuntu, VMware installation, 697, 698 udev, 103

udev kernel device management subsystem, 414 UDP (User Datagram Protocol), 163, 577 uid.conf file (Apache web server), 451 undo command emacs, 311 vi/vim, 303 uniq command, 274

Unix, enterprise staff requirements and, 661 unix2dos, newline characters and, 288-289 unknown local_recipient_reject_code (Postfix), 473

unmask, user, 67

unmounting filesystems, 68-69, 105-106 unpacking archives, 370, 371 RPM packages, 372 unset command, 52

updates (connection/online), testing, 38-39

updating partition tables, 85

upgrading

EXT2 to EXT3 (filesystems), 95-96 kernel packages, 714 uploads allowing with FTP, 594-596 security and, 588

user data, adding to LDAP servers, 636-640 User Datagram Protocol (UDP), mounting NFS

and, 577 user preferences configuring, 67-68 in X Window system, 202 useradd command, 63-64 users adding/editing with YaST, 249-251 adding to Cyrus IMAPD, 495-496 creating at installation, 23 management of, 41 user access (Apache server), 457-458 user accounts, enterprise architecture and, 669-670

user authentication. See authentication user FTP, setting up, 593-594 user groups, 157 user space, defined, 601 users modules (YaST), 232 users and groups creating, 63-64

groupadd and groupmod commands, 64 overview of, 62-63 /usr/share/doc/packages/ directory, 146-147 utilities. See also EXT2 filesystem; EXT3 filesystem dhcpcd-test, 552 Explore2fs, 133 mke2fs, 92-93

parted utility (Linux), 78, 130-131 for partitioning, 390 psutils package, 291 testparm (Samba), 516 xf86config, 194 xorgcfg, 194

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