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zone "internal.falcot.com" { type master; file "/etc/bind/db.internal.falcot.com"; allow-query { 192.168.0.0/16; }; }; zone "168.192.in-addr.arpa" { type master; file "/etc/bind/db.192.168"; allow-query { 192.168.0.0/16; }; }; Example 10.11 Excerpt of /etc/bind/named.conf.local ; falcot.com Zone ; admin.falcot.com. => zone contact: admin@falcot.com $TTL 604800 @ IN SOA falcot.com. admin.falcot.com. ( 20040121 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800 ) ; Negative Cache TTL ; ; The @ refers to the zone name ("falcot.com" here) ; or to $ORIGIN if that directive has been used ; @ IN NS ns @ IN NS ns0.xname.org. interne IN NS 192.168.0.2 @ IN A 212.94.201.10 @ IN MX 5 mail @ IN MX 10 mail2 ns IN A 212.94.201.10 mail IN A 212.94.201.10 mail2 IN A 212.94.201.11 www IN A 212.94.201.11 dns IN CNAME ns 242 The Debian Administrator's Handbook
Example 10.12 Excerpt of /etc/bind/db.falcot.com CAUTION Syntax of a name The syntax of machine names follows strict rules. For instance, machine implies machine.domain. If the domain name should not be appended to a name, said name must be wrien as machine. (with a dot as suffix). Indicating a DNS name outside the current domain therefore requires a syntax such as machine. otherdomain.com. (with the final dot). ; Reverse zone for 192.168.0.0/16 ; admin.falcot.com. => zone contact: admin@falcot.com $TTL 604800 @ IN SOA ns.interne.falcot.com. admin.falcot.com. ( 20040121 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800 ) ; Negative Cache TTL IN NS ns.interne.falcot.com. ; 192.168.0.1 -> arrakis 1.0 IN PTR arrakis.interne.falcot.com. ; 192.168.0.2 -> neptune 2.0 IN PTR neptune.interne.falcot.com. ; 192.168.3.1 -> pau 1.3 IN PTR pau.interne.falcot.com. Example 10.13 Excerpt of /etc/bind/db.192.168 10.7. DHCP 10.7.1. Presentation DHCP (for Dynamic Host Configuration Protocol) is a protocol by which a machine can automatically get its network configuration when it boots. This allows centralizing the management of network configurations, and ensuring that all desktop machines get similar settings. A DHCP server provides many network-related parameters. The most common of these is an IP Chapter 10 — Network Infrastructure 243
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The Debian Administrator's Handbook
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3.1.3 Integration with Other Linux/
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6.5 Checking Package Authenticity .
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9.4.1 Administrating On a Web Inter
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11.5 Seing Up Windows Shares with S
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14.2 Firewall or Packet Filtering .
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B.2.2 The User's Home Directory . .
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Foreword Linux has been garnering s
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Book Structure Following the struct
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While we were obviously satisfied w
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Tobias Gruetzmacher, Tournier Simon
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Keywords Objective Means Operation
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1.1. What Is Debian? CULTURE Origin
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TOOL Installer debian-installer is
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COMMUNITY Upstream author, or Debia
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➨ http://www.opensource.org/licen
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1.3.1. The Debian Developers Debian
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with the changelog.gz file (or equi
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were only lile challenges at the be
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can always fine-tune these paramete
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PERSPECTIVE Debian for multimedia A
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Each specific service has its own s
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tool. Whether used in graphical or
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Figure 1.2 Compilation of a package
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their work. The next step is the in
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28 The Debian Administrator's Handb
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Keywords Falcot Corp SMB Strong Gro
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We have envisioned this case study
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Several factors have dictated this
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• A survey of several French serv
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Chapter Analyzing the Existing Setu
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Figure 3.1 Coexistence of Debian wi
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Figure 3.2 Database backups Each se
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HARDWARE Next-generation PC Most re
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Keywords Installation Partitioning
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BACK TO BASICS A catch-up course in
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copy the previously downloaded ISO
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of the two, and GRUB, a more modern
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Figure 4.3 Selecting the country 4.
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4.2.9. Configuring the Clock If the
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(swap) will be stored. This task is
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Figure 4.9 Guided partitioning The
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IN PRACTICE Shrinking a Windows par
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“Create a volume group”, to whi
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Figure 4.12 Selecting a Debian mirr
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accessible from the boot menu. You
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TIP Debian thinks of speakers of no
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Chapter Packaging System: Tools and
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Chapter 7, Solving Problems and Fin
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SHA1: 350a8a7a43fe182d54f3b7d73b803
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5.2.1.2. Conflicts: the Conflicts f
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Figure 5.1 Use of a Provides field
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name. This directory also includes
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postinst and similar scripts. But t
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-----BEGIN PGP SIGNED MESSAGE-----
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and a set of upstream patches contr
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Updating database of manual pages .
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which the file comes; --status pack
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Iceweasel is a redesign of the Mozi
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handles other packaging formats, es
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Chapter Maintenance and Updates: Th
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The syntax of the last field depend
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6.1.1.2. The Backports From backpor
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6.2.1. Initialization For any work
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6.2.3. System Upgrade Regular upgra
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it can be configured through severa
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TIP Comments in /etc/apt/ preferenc
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6.4. Frontends: aptitude, synaptic
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like aptitude has always done. It c
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aptitude's log will only contain a
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“Authentication” tab in the Sei
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compiled by the package maintainers
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Figure 6.3 Upgrading with update-ma
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IN PRACTICE The Falcot Corp case Fa
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purpose is editing. Browsing this c
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Chapter Solving Problems and Findin
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Man pages not only document program
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The navigation controls in the docu
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constraints... 7.2. Common Procedur
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7.2.3. Asking for Help on a Mailing
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Keywords Configuration Localization
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This chapter reviews everything inc
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The questions are relevant to the p
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to 1 Gb/s). The most widely used ca
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A connection by telephone modem req
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Network Manager knows how to handle
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TIP Bypassing DNS Since application
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8.4.3. Modifying an Existing Accoun
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The creation of an account populate
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8.7. Printer Configuration Printer
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Configuration of the bootloader mus
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oot=/dev/sda # the partition that c
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kernel /vmlinuz root=/dev/sda2 init
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The timezone, configured during ini
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GOING FURTHER GPS modules and other
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A complete list of known filesystem
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8.10.1. Introduction and Prerequisi
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the choices saved in the .config fi
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$ ls ../*.deb ../linux-image-2.6.32
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This requires, however, that lilo b
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Chapter Unix Services 9 Contents Sy
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• checking the integrity of files
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By default, Debian uses four differ
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BACK TO BASICS Client, server A sys
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Page 219 and 220: For any connection established on t
Page 221 and 222: When the VNC session is closed, rem
Page 223 and 224: There are two ways of presenting ri
Page 225 and 226: Webmin is used through a web interf
Page 227 and 228: • news: Usenet subsystem message
Page 229 and 230: 9.6. The inetd Super-Server Inetd (
Page 231 and 232: SECURITY Restricting cron or atd Yo
Page 233 and 234: # Restart the IRC proxy after each
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Page 237 and 238: of backups can be kept in a small a
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Page 241 and 242: • ACTION: the action correspondin
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Page 245 and 246: ATTENTION Graphics card and standby
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Page 249 and 250: sent through to the masqueraded con
Page 251 and 252: CULTURE SSL and TLS The SSL protoco
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Page 255 and 256: 10.2.1.2. Configuring the OpenVPN S
Page 257 and 258: fast. Installing an IKE daemon (for
Page 259 and 260: pptpd is the PPTP server for Linux.
Page 261 and 262: ## some defaults nodefaultroute pro
Page 263 and 264: GOING FURTHER Optimal configuration
Page 265 and 266: # (/proc/sys/net/ipv6/conf/all/acce
Page 267: so that a security vulnerability in
Page 271 and 272: } option broadcast-address 192.168.
Page 273 and 274: 10.8.2. Remote Diagnosis: nmap nmap
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Page 277 and 278: Chapter 11 Network Services: Postfi
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Page 281 and 282: alias_database = hash:/etc/aliases
Page 283 and 284: virtual_mailbox_base = /var/mail/vh
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Page 295 and 296: Apache is a modular server, and man
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Page 299 and 300: 11.2.3.2. Restricting Access The Al
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and so on). The answer to the “co
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go into deeper detail for some conc
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Chapter Advanced12 Administration C
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CULTURE Independent or inexpensive?
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RAID-5 RAID-5 addresses the asymmet
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Filesystem label= OS type: Linux Bl
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there will be a synchronization pha
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[...] Update Time : Thu Sep 30 15:5
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Fortunately, these lines can be gen
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# pvdisplay "/dev/sdb2" is a new ph
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Allocation inherit Read ahead secto
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# cat /etc/fstab [...] /dev/vg_crit
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[...] # df -h /srv/base/ Filesystem
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• The remaining partitions, sda7
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that gets started) is known as dom0
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or Mandriva). Other methods include
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# xm list Name ID Mem VCPUs State T
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known as control groups, by which d
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into a separate switch, with the co
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done. INIT: Entering runlevel: 3 St
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12.2.3.2. Network Configuration Jus
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is accessible from all interfaces;
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We will only give a rough overview
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• from the network; preseeding th
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12.3.3. Simple-CDD: The All-In-One
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12.4. Monitoring Monitoring is a ge
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Finally, when a plugin is invoked w
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According to its type, each object
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check_command } define service{ use
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Keywords Workstation Graphical desk
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13.1. Configuring the X11 Server Th
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oth versions are available in Squee
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contains commented examples. Last,
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Figure 13.2 The KDE desktop Since t
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Evolution is the GNOME email client
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Strictly speaking, Debian Squeeze c
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The next versions of these applicat
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13.4.4.3. Collaborative Work With F
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The Windows partition must first be
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Chapter Security14 Contents Definin
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ut the other elements should also b
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• INPUT: concerns packets whose d
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Other actions, particularly those c
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Figure 14.2 Fwbuilder's main window
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• those that qualify a message as
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14.3.3.1. Auditing Packages: debsum
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The chkrootkit and rkhunter package
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Figure 14.3 Security contexts and U
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The aptitude install selinux-basics
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# semanage login -a -s user_u rhert
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# myapp executable will have: # lab
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GOING FURTHER The m4 macro language
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Message avc:denied { read write } p
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➨ http://en.wikipedia.org/wiki/SQ
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features imply a increased risk of
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confronted with these unfortunate c
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sure of actually fixing it; otherwi
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(...) ** 2004-11-29-19:50:49: DCC S
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Chapter Creating a Debian15 Package
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editor shows us that dch really did
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15.2. Building your First Package 1
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particular case, library, is useful
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The interpretation of such a rule i
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ALTERNATIVE apt-ftparchive If mini-
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a huge problem as soon as the error
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EXTRA Lightweight process for “De
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not yet gone through the new mainta
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Chapter Debian's16 Conclusion: Futu
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16.3. Future of this Book We would
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These objectives necessarily involv
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A.7. Damn Small Linux This distribu
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$ pwd /home/rhertzog $ cd Desktop $
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tmpfs 514208 269136 245072 53% /dev
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B.3.1. The Deepest Layer: the Hardw
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B.4. Some Tasks Handled by the Kern
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B.4.3. Shared Functions Since a num
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comes back when the execution of th
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• the standard C library (glibc),
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alternative, 356 am-utils, 173 aman
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Collins, Ben, 12 command line inter
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edquota, 209 eGroupware, 366 EHLO,
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in-addr.arpa, 241 Includes, Apache
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lspci, 444 lspcmcia, 444 lsusb, 444
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hardware acceleration, 190 openswan
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ead, right, 196 README.Debian, 11,
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suite, office, 368 super-server, 20
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Z Zabbix, 343 Zacchiroli, Stefano,
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