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Keywords Documentation Solving problems Log files README.Debian Manual info
Chapter Solving Problems and Finding Relevant Information 7 Contents Documentation Sources 132 Common Procedures 137 For an administrator, the most important skill is to be able to cope with any situation, known or unknown. This chapter gives a number of methods that will — hopefully — allow you to isolate the cause of any problem that you will encounter, so that you may be able to resolve them.
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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
Page 105 and 106: SHA1: 350a8a7a43fe182d54f3b7d73b803
Page 107 and 108: 5.2.1.2. Conflicts: the Conflicts f
Page 109 and 110: Figure 5.1 Use of a Provides field
Page 111 and 112: name. This directory also includes
Page 113 and 114: postinst and similar scripts. But t
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Page 117 and 118: and a set of upstream patches contr
Page 119 and 120: Updating database of manual pages .
Page 121 and 122: which the file comes; --status pack
Page 123 and 124: Iceweasel is a redesign of the Mozi
Page 125 and 126: handles other packaging formats, es
Page 127 and 128: Chapter Maintenance and Updates: Th
Page 129 and 130: The syntax of the last field depend
Page 131 and 132: 6.1.1.2. The Backports From backpor
Page 133 and 134: 6.2.1. Initialization For any work
Page 135 and 136: 6.2.3. System Upgrade Regular upgra
Page 137 and 138: it can be configured through severa
Page 139 and 140: TIP Comments in /etc/apt/ preferenc
Page 141 and 142: 6.4. Frontends: aptitude, synaptic
Page 143 and 144: like aptitude has always done. It c
Page 145 and 146: aptitude's log will only contain a
Page 147 and 148: “Authentication” tab in the Sei
Page 149 and 150: compiled by the package maintainers
Page 151 and 152: Figure 6.3 Upgrading with update-ma
Page 153 and 154: IN PRACTICE The Falcot Corp case Fa
Page 155: purpose is editing. Browsing this c
Page 159 and 160: Man pages not only document program
Page 161 and 162: The navigation controls in the docu
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Page 165 and 166: 7.2.3. Asking for Help on a Mailing
Page 168 and 169: Keywords Configuration Localization
Page 170 and 171: This chapter reviews everything inc
Page 172 and 173: The questions are relevant to the p
Page 174 and 175: to 1 Gb/s). The most widely used ca
Page 176 and 177: A connection by telephone modem req
Page 178 and 179: Network Manager knows how to handle
Page 180 and 181: TIP Bypassing DNS Since application
Page 182 and 183: 8.4.3. Modifying an Existing Accoun
Page 184 and 185: The creation of an account populate
Page 186 and 187: 8.7. Printer Configuration Printer
Page 188 and 189: Configuration of the bootloader mus
Page 190 and 191: oot=/dev/sda # the partition that c
Page 192 and 193: kernel /vmlinuz root=/dev/sda2 init
Page 194 and 195: The timezone, configured during ini
Page 196 and 197: GOING FURTHER GPS modules and other
Page 198 and 199: A complete list of known filesystem
Page 200 and 201: 8.10.1. Introduction and Prerequisi
Page 202 and 203: the choices saved in the .config fi
Page 204 and 205: $ 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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that requires frequent connections
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For any connection established on t
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When the VNC session is closed, rem
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There are two ways of presenting ri
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Webmin is used through a web interf
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• news: Usenet subsystem message
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9.6. The inetd Super-Server Inetd (
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SECURITY Restricting cron or atd Yo
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# Restart the IRC proxy after each
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update the quotas in the absence of
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of backups can be kept in a small a
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The Falcot Corp administrators are
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• ACTION: the action correspondin
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ATTRS{rev}==" " ATTRS{state}=="runn
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ATTENTION Graphics card and standby
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Chapter Network10 Infrastructure Co
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sent through to the masqueraded con
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CULTURE SSL and TLS The SSL protoco
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crt for the public certificate, key
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10.2.1.2. Configuring the OpenVPN S
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fast. Installing an IKE daemon (for
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pptpd is the PPTP server for Linux.
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## some defaults nodefaultroute pro
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GOING FURTHER Optimal configuration
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# (/proc/sys/net/ipv6/conf/all/acce
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so that a security vulnerability in
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Example 10.12 Excerpt of /etc/bind/
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} option broadcast-address 192.168.
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10.8.2. Remote Diagnosis: nmap nmap
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The packet currently displayed was
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Chapter 11 Network Services: Postfi
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the ISP's SMTP server, which is alw
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alias_database = hash:/etc/aliases
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virtual_mailbox_base = /var/mail/vh
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The last two rules reject any messa
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The reject_unlisted_recipient rule
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failed messages later), especially
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# Unfiltered addresses postmaster@f
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Note that the SASL database was cre
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Apache is a modular server, and man
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# New log format including (virtual
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11.2.3.2. Restricting Access The Al
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➨ http://www.falcot.com/cgi-bin/a
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RPC services register to a director
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option, which disables this behavio
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The package also proposes identifyi
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1 5 Specifies the character set and
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username = user password = password
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11.6.3. Configuring a Filter squid
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objectClass: dcObject objectClass:
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Question Answer LDAP server Uniform
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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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