blog/Autodetecting_Client_setup_for_roaming_workstations_in_Debian_Edu.html

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
   2           "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
   3 <html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
   4   <head>
   5     <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
   6     <title>Petter Reinholdtsen: Autodetecting Client setup for roaming workstations in Debian Edu</title>
   7     <link rel="stylesheet" type="text/css" media="screen" href="http://people.skolelinux.org/pere/blog/style.css" />
   8     <link rel="stylesheet" type="text/css" media="screen" href="http://people.skolelinux.org/pere/blog/vim.css" />
   9   </head>
  10   <body>
  11     <div class="title">
  12  <h1>
  13      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  14
  15  </h1>
  16
  17 </div>
  18
  19
  20     <div class="entry">
  21       <div class="title">Autodetecting Client setup for roaming workstations in Debian Edu</div>
  22       <div class="date"> 7th August 2010</div>
  23       <div class="body"><p>A few days ago, I
  24 <a href="http://people.skolelinux.org/pere/blog/Debian_Edu_roaming_workstation___at_the_university_of_Oslo.html">tried
  25 to install</a> a Roaming workation profile from Debian Edu/Squeeze
  26 while on the university network here at the University of Oslo, and
  27 noticed how much had to change to get it operational using the
  28 university infrastructure.  It was fairly easy, but it occured to me
  29 that Debian Edu would improve a lot if I could get the client to
  30 connect without any changes at all, and thus let the client configure
  31 itself during installation and first boot to use the infrastructure
  32 around it.  Now I am a huge step further along that road.</p>
  33
  34 <p>With our current squeeze-test packages, I can select the roaming
  35 workstation profile and get a working laptop connecting to the
  36 university LDAP server for user and group and our active directory
  37 servers for Kerberos authentication.  All this without any
  38 configuration at all during installation.  My users home directory got
  39 a bookmark in the KDE menu to mount it via SMB, with the correct URL.
  40 In short, openldap and sssd is correctly configured.  In addition to
  41 this, the client look for http://wpad/wpad.dat to configure a web
  42 proxy, and when it fail to find it no proxy settings are stored in
  43 /etc/environment and /etc/apt/apt.conf.  Iceweasel and KDE is
  44 configured to look for the same wpad configuration and also do not use
  45 a proxy when at the university network.  If the machine is moved to a
  46 network with such wpad setup, it would automatically use it when DHCP
  47 gave it a IP address.</p>
  48
  49 <p>The LDAP server is located using DNS, by first looking for the DNS
  50 entry ldap.$domain.  If this do not exist, it look for the
  51 _ldap._tcp.$domain SRV records and use the first one as the LDAP
  52 server.  Next, it connects to the LDAP server and search all
  53 namingContexts entries for posixAccount or posixGroup objects, and
  54 pick the first one as the LDAP base.  For Kerberos, a similar
  55 algorithm is used to locate the LDAP server, and the realm is the
  56 uppercase version of $domain.</p>
  57
  58 <p>So, what is not working, you might ask.  SMB mounting my home
  59 directory do not work.  No idea why, but suspected the incorrect
  60 Kerberos settings in /etc/krb5.conf and /etc/samba/smb.conf might be
  61 the cause.  These are not properly configured during installation, and
  62 had to be hand-edited to get the correct Kerberos realm and server,
  63 but SMB mounting still do not work. :(</p>
  64
  65 <p>With this automatic configuration in place, I expect a Debian Edu
  66 roaming profile installation would be able to automatically detect and
  67 connect to any site using LDAP and Kerberos for NSS directory and PAM
  68 authentication.  It should also work out of the box in a Active
  69 Directory environment providing posixAccount and posixGroup objects
  70 with UID and GID values.</p>
  71
  72 <p>If you want to help out with implementing these things for Debian
  73 Edu, please contact us on debian-edu@lists.debian.org.</p>
  74 </div>
  75
  76       <div class="tags">Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>.</div>
  77
  78
  79     </div>
  80
  81
  82
  83
  84     <div id="sidebar">
  85
  86
  87
  88 <h2>Archive</h2>
  89 <ul>
  90
  91 <li>2012
  92 <ul>
  93
  94 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
  95
  96 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
  97
  98 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
  99
 100 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 101
 102 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 103
 104 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 105
 106 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 107
 108 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 109
 110 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 111
 112 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 113
 114 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 115
 116 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (2)</a></li>
 117
 118 </ul></li>
 119
 120 <li>2011
 121 <ul>
 122
 123 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 124
 125 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 126
 127 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 128
 129 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 130
 131 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 132
 133 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 134
 135 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 136
 137 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 138
 139 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 140
 141 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 142
 143 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 144
 145 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 146
 147 </ul></li>
 148
 149 <li>2010
 150 <ul>
 151
 152 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 153
 154 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 155
 156 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 157
 158 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 159
 160 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 161
 162 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 163
 164 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 165
 166 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 167
 168 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 169
 170 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 171
 172 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 173
 174 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 175
 176 </ul></li>
 177
 178 <li>2009
 179 <ul>
 180
 181 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 182
 183 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 184
 185 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 186
 187 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 188
 189 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 190
 191 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 192
 193 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 194
 195 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 196
 197 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 198
 199 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 200
 201 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 202
 203 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 204
 205 </ul></li>
 206
 207 <li>2008
 208 <ul>
 209
 210 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 211
 212 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 213
 214 </ul></li>
 215
 216 </ul>
 217
 218
 219
 220 <h2>Tags</h2>
 221 <ul>
 222
 223  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (13)</a></li>
 224
 225  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 226
 227  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 228
 229  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (3)</a></li>
 230
 231  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (3)</a></li>
 232
 233  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (12)</a></li>
 234
 235  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 236
 237  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (57)</a></li>
 238
 239  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (116)</a></li>
 240
 241  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (9)</a></li>
 242
 243  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (7)</a></li>
 244
 245  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 246
 247  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (161)</a></li>
 248
 249  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (21)</a></li>
 250
 251  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 252
 253  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (9)</a></li>
 254
 255  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (9)</a></li>
 256
 257  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (32)</a></li>
 258
 259  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (17)</a></li>
 260
 261  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (8)</a></li>
 262
 263  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (5)</a></li>
 264
 265  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 266
 267  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (25)</a></li>
 268
 269  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (217)</a></li>
 270
 271  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (147)</a></li>
 272
 273  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (6)</a></li>
 274
 275  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 276
 277  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (39)</a></li>
 278
 279  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (60)</a></li>
 280
 281  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
 282
 283  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 284
 285  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (2)</a></li>
 286
 287  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (4)</a></li>
 288
 289  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 290
 291  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (4)</a></li>
 292
 293  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 294
 295  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (28)</a></li>
 296
 297  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 298
 299  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (4)</a></li>
 300
 301  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (39)</a></li>
 302
 303  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (3)</a></li>
 304
 305  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (5)</a></li>
 306
 307  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (12)</a></li>
 308
 309  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (1)</a></li>
 310
 311  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (7)</a></li>
 312
 313  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (35)</a></li>
 314
 315  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 316
 317  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (26)</a></li>
 318
 319 </ul>
 320
 321
 322     </div>
 323     <p style="text-align: right">
 324  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.4</a>
 325 </p>
 326
 327   </body>
 328 </html>