blog/tags/sitesummary/index.html

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   6     <title>Petter Reinholdtsen: Entries Tagged sitesummary</title>
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  13  <h1>
  14      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  15
  16  </h1>
  17
  18 </div>
  19
  20
  21     <h3>Entries tagged "sitesummary".</h3>
  22
  23     <div class="entry">
  24       <div class="title">
  25         <a href="http://people.skolelinux.org/pere/blog/Automatic_Munin_and_Nagios_configuration.html">Automatic Munin and Nagios configuration</a>
  26       </div>
  27       <div class="date">
  28         27th January 2010
  29       </div>
  30       <div class="body">
  31         <p>One of the new features in the next Debian/Lenny based release of
  32 Debian Edu/Skolelinux, which is scheduled for release in the next few
  33 days, is automatic configuration of the service monitoring system
  34 Nagios.  The previous release had automatic configuration of trend
  35 analysis using Munin, and this Lenny based release take that a step
  36 further.</p>
  37
  38 <p>When installing a Debian Edu Main-server, it is automatically
  39 configured as a Munin and Nagios server.  In addition, it is
  40 configured to be a server for the
  41 <a href="http://wiki.debian.org/DebianEdu/HowTo/SiteSummary">SiteSummary
  42 system</a> I have written for use in Debian Edu.  The SiteSummary
  43 system is inspired by a system used by the University of Oslo where I
  44 work.  In short, the system provide a centralised collector of
  45 information about the computers on the network, and a client on each
  46 computer submitting information to this collector.  This allow for
  47 automatic information on which packages are installed on each machine,
  48 which kernel the machines are using, what kind of configuration the
  49 packages got etc.  This also allow us to automatically generate Munin
  50 and Nagios configuration.</p>
  51
  52 <p>All computers reporting to the sitesummary collector with the
  53 munin-node package installed is automatically enabled as a Munin
  54 client and graphs from the statistics collected from that machine show
  55 up automatically on http://www/munin/ on the Main-server.</p>
  56
  57 <p>All non-laptop computers reporting to the sitesummary collector are
  58 automatically monitored for network presence (ping and any network
  59 services detected).  In addition, all computers (also laptops) with
  60 the nagios-nrpe-server package installed and configured the way
  61 sitesummary would configure it, are monitored for full disks, software
  62 raid status, swap free and other checks that need to run locally on
  63 the machine.</p>
  64
  65 <p>The result is that the administrator on a school using Debian Edu
  66 based on Lenny will be able to check the health of his installation
  67 with one look at the Nagios settings, without having to spend any time
  68 keeping the Nagios configuration up-to-date.</p>
  69
  70 <p>The only configuration one need to do to get Nagios up and running
  71 is to set the password used to get access via HTTP.  The system
  72 administrator need to run "<tt>htpasswd /etc/nagios3/htpasswd.users
  73 nagiosadmin</tt>" to create a nagiosadmin user and set a password for
  74 it to be able to log into the Nagios web pages.  After that,
  75 everything is taken care of.</p>
  76
  77       </div>
  78       <div class="tags">
  79
  80
  81         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>, <a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary</a>.
  82
  83
  84       </div>
  85     </div>
  86     <div class="padding"></div>
  87
  88     <div class="entry">
  89       <div class="title">
  90         <a href="http://people.skolelinux.org/pere/blog/Sitesummary_tip__Listing_MAC_address_of_all_clients.html">Sitesummary tip: Listing MAC address of all clients</a>
  91       </div>
  92       <div class="date">
  93         14th May 2010
  94       </div>
  95       <div class="body">
  96         <p>In the recent Debian Edu versions, the
  97 <a href="http://wiki.debian.org/DebianEdu/HowTo/SiteSummary">sitesummary
  98 system</a> is used to keep track of the machines in the school
  99 network.  Each machine will automatically report its status to the
 100 central server after boot and once per night.  The network setup is
 101 also reported, and using this information it is possible to get the
 102 MAC address of all network interfaces in the machines.  This is useful
 103 to update the DHCP configuration.</p>
 104
 105 <p>To give some idea how to use sitesummary, here is a one-liner to
 106 ist all MAC addresses of all machines reporting to sitesummary.  Run
 107 this on the collector host:</p>
 108
 109 <blockquote><pre>
 110 perl -MSiteSummary -e 'for_all_hosts(sub { print join(" ", get_macaddresses(shift)), "\n"; });'
 111 </pre></blockquote>
 112
 113 <p>This will list all MAC addresses assosiated with all machine, one
 114 line per machine and with space between the MAC addresses.</p>
 115
 116 <p>To allow system administrators easier job at adding static DHCP
 117 addresses for hosts, it would be possible to extend this to fetch
 118 machine information from sitesummary and update the DHCP and DNS
 119 tables in LDAP using this information.  Such tool is unfortunately not
 120 written yet.</p>
 121
 122       </div>
 123       <div class="tags">
 124
 125
 126         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <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/sitesummary">sitesummary</a>.
 127
 128
 129       </div>
 130     </div>
 131     <div class="padding"></div>
 132
 133     <div class="entry">
 134       <div class="title">
 135         <a href="http://people.skolelinux.org/pere/blog/Sitesummary_tip__Listing_computer_hardware_models_used_at_site.html">Sitesummary tip: Listing computer hardware models used at site</a>
 136       </div>
 137       <div class="date">
 138          3rd June 2010
 139       </div>
 140       <div class="body">
 141         <p>When using sitesummary at a site to track machines, it is possible
 142 to get a list of the machine types in use thanks to the DMI
 143 information extracted from each machine.  The script to do so is
 144 included in the sitesummary package, and here is example output from
 145 the Skolelinux build servers:</p>
 146
 147 <blockquote><pre>
 148 maintainer:~# /usr/lib/sitesummary/hardware-model-summary
 149   vendor                    count
 150   Dell Computer Corporation     1
 151     PowerEdge 1750              1
 152   IBM                           1
 153     eserver xSeries 345 -[8670M1X]-     1
 154   Intel                         2
 155   [no-dmi-info]                 3
 156 maintainer:~#
 157 </pre></blockquote>
 158
 159 <p>The quality of the report depend on the quality of the DMI tables
 160 provided in each machine.  Here there are Intel machines without model
 161 information listed with Intel as vendor and mo model, and virtual Xen
 162 machines listed as [no-dmi-info].  One can add -l as a command line
 163 option to list the individual machines.</p>
 164
 165 <p>A larger list is
 166 <a href="http://narvikskolen.no/sitesummary/">available from the the
 167 city of Narvik</a>, which uses Skolelinux on all their shools and also
 168 provide the basic sitesummary report publicly.  In their report there
 169 are ~1400 machines. I know they use both Ubuntu and Skolelinux on
 170 their machines, and as sitesummary is available in both distributions,
 171 it is trivial to get all of them to report to the same central
 172 collector.</p>
 173
 174       </div>
 175       <div class="tags">
 176
 177
 178         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <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/sitesummary">sitesummary</a>.
 179
 180
 181       </div>
 182     </div>
 183     <div class="padding"></div>
 184
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 186     <div id="sidebar">
 187
 188
 189
 190 <h2>Archive</h2>
 191 <ul>
 192
 193 <li>2012
 194 <ul>
 195
 196 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (2)</a></li>
 197
 198 </ul></li>
 199
 200 <li>2011
 201 <ul>
 202
 203 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 204
 205 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 206
 207 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 208
 209 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 210
 211 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 212
 213 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 214
 215 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 216
 217 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 218
 219 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 220
 221 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 222
 223 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 224
 225 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 226
 227 </ul></li>
 228
 229 <li>2010
 230 <ul>
 231
 232 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 233
 234 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 235
 236 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 237
 238 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 239
 240 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 241
 242 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 243
 244 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 245
 246 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 247
 248 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 249
 250 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 251
 252 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 253
 254 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 255
 256 </ul></li>
 257
 258 <li>2009
 259 <ul>
 260
 261 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 262
 263 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 264
 265 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 266
 267 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 268
 269 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 270
 271 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 272
 273 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 274
 275 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 276
 277 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 278
 279 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 280
 281 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 282
 283 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 284
 285 </ul></li>
 286
 287 <li>2008
 288 <ul>
 289
 290 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 291
 292 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 293
 294 </ul></li>
 295
 296 </ul>
 297
 298
 299
 300 <h2>Tags</h2>
 301 <ul>
 302
 303  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (13)</a></li>
 304
 305  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 306
 307  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 308
 309  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (2)</a></li>
 310
 311  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (12)</a></li>
 312
 313  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 314
 315  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (54)</a></li>
 316
 317  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (66)</a></li>
 318
 319  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (7)</a></li>
 320
 321  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (100)</a></li>
 322
 323  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (13)</a></li>
 324
 325  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 326
 327  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (11)</a></li>
 328
 329  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (15)</a></li>
 330
 331  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (8)</a></li>
 332
 333  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (4)</a></li>
 334
 335  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 336
 337  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (14)</a></li>
 338
 339  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (141)</a></li>
 340
 341  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (120)</a></li>
 342
 343  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 344
 345  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (24)</a></li>
 346
 347  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (46)</a></li>
 348
 349  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 350
 351  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (2)</a></li>
 352
 353  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (4)</a></li>
 354
 355  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 356
 357  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (23)</a></li>
 358
 359  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (3)</a></li>
 360
 361  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (24)</a></li>
 362
 363  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (1)</a></li>
 364
 365  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (3)</a></li>
 366
 367  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (9)</a></li>
 368
 369  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (6)</a></li>
 370
 371  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (22)</a></li>
 372
 373  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (1)</a></li>
 374
 375  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (17)</a></li>
 376
 377 </ul>
 378
 379
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