]> pere.pagekite.me Git - homepage.git/blob - blog/index.rss
Generated.
[homepage.git] / blog / index.rss
1 <?xml version="1.0" encoding="utf-8"?>
2 <rss version='2.0' xmlns:lj='http://www.livejournal.org/rss/lj/1.0/' xmlns:atom="http://www.w3.org/2005/Atom">
3 <channel>
4 <title>Petter Reinholdtsen</title>
5 <description></description>
6 <link>http://people.skolelinux.org/pere/blog/</link>
7 <atom:link href="http://people.skolelinux.org/pere/blog/index.rss" rel="self" type="application/rss+xml" />
8
9 <item>
10 <title>A one-way wall on the border?</title>
11 <link>http://people.skolelinux.org/pere/blog/A_one_way_wall_on_the_border_.html</link>
12 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/A_one_way_wall_on_the_border_.html</guid>
13 <pubDate>Sat, 14 Oct 2017 22:10:00 +0200</pubDate>
14 <description>&lt;p&gt;I find it fascinating how many of the people being locked inside
15 the proposed border wall between USA and Mexico support the idea. The
16 proposal to keep Mexicans out reminds me of
17 &lt;a href=&quot;http://www.history.com/news/10-things-you-may-not-know-about-the-berlin-wall&quot;&gt;the
18 propaganda twist from the East Germany government&lt;/a&gt; calling the wall
19 the “Antifascist Bulwark” after erecting the Berlin Wall, claiming
20 that the wall was erected to keep enemies from creeping into East
21 Germany, while it was obvious to the people locked inside it that it
22 was erected to keep the people from escaping.&lt;/p&gt;
23
24 &lt;p&gt;Do the people in USA supporting this wall really believe it is a
25 one way wall, only keeping people on the outside from getting in,
26 while not keeping people in the inside from getting out?&lt;/p&gt;
27 </description>
28 </item>
29
30 <item>
31 <title>Generating 3D prints in Debian using Cura and Slic3r(-prusa)</title>
32 <link>http://people.skolelinux.org/pere/blog/Generating_3D_prints_in_Debian_using_Cura_and_Slic3r__prusa_.html</link>
33 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Generating_3D_prints_in_Debian_using_Cura_and_Slic3r__prusa_.html</guid>
34 <pubDate>Mon, 9 Oct 2017 10:50:00 +0200</pubDate>
35 <description>&lt;p&gt;At my nearby maker space,
36 &lt;a href=&quot;http://sonen.ifi.uio.no/&quot;&gt;Sonen&lt;/a&gt;, I heard the story that it
37 was easier to generate gcode files for theyr 3D printers (Ultimake 2+)
38 on Windows and MacOS X than Linux, because the software involved had
39 to be manually compiled and set up on Linux while premade packages
40 worked out of the box on Windows and MacOS X. I found this annoying,
41 as the software involved,
42 &lt;a href=&quot;https://github.com/Ultimaker/Cura&quot;&gt;Cura&lt;/a&gt;, is free software
43 and should be trivial to get up and running on Linux if someone took
44 the time to package it for the relevant distributions. I even found
45 &lt;a href=&quot;https://bugs.debian.org/706656&quot;&gt;a request for adding into
46 Debian&lt;/a&gt; from 2013, which had seem some activity over the years but
47 never resulted in the software showing up in Debian. So a few days
48 ago I offered my help to try to improve the situation.&lt;/p&gt;
49
50 &lt;p&gt;Now I am very happy to see that all the packages required by a
51 working Cura in Debian are uploaded into Debian and waiting in the NEW
52 queue for the ftpmasters to have a look. You can track the progress
53 on
54 &lt;a href=&quot;https://qa.debian.org/developer.php?email=3dprinter-general%40lists.alioth.debian.org&quot;&gt;the
55 status page for the 3D printer team&lt;/a&gt;.&lt;/p&gt;
56
57 &lt;p&gt;The uploaded packages are a bit behind upstream, and was uploaded
58 now to get slots in &lt;a href=&quot;https://ftp-master.debian.org/new.html&quot;&gt;the NEW
59 queue&lt;/a&gt; while we work up updating the packages to the latest
60 upstream version.&lt;/p&gt;
61
62 &lt;p&gt;On a related note, two competitors for Cura, which I found harder
63 to use and was unable to configure correctly for Ultimaker 2+ in the
64 short time I spent on it, are already in Debian. If you are looking
65 for 3D printer &quot;slicers&quot; and want something already available in
66 Debian, check out
67 &lt;a href=&quot;https://tracker.debian.org/pkg/slic3r&quot;&gt;slic3r&lt;/a&gt; and
68 &lt;a href=&quot;https://tracker.debian.org/pkg/slic3r-prusa&quot;&gt;slic3r-prusa&lt;/a&gt;.
69 The latter is a fork of the former.&lt;/p&gt;
70 </description>
71 </item>
72
73 <item>
74 <title>Mangler du en skrue, eller har du en skrue løs?</title>
75 <link>http://people.skolelinux.org/pere/blog/Mangler_du_en_skrue__eller_har_du_en_skrue_l_s_.html</link>
76 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Mangler_du_en_skrue__eller_har_du_en_skrue_l_s_.html</guid>
77 <pubDate>Wed, 4 Oct 2017 09:40:00 +0200</pubDate>
78 <description>Når jeg holder på med ulike prosjekter, så trenger jeg stadig ulike
79 skruer. Det siste prosjektet jeg holder på med er å lage
80 &lt;a href=&quot;https://www.thingiverse.com/thing:676916&quot;&gt;en boks til en
81 HDMI-touch-skjerm&lt;/a&gt; som skal brukes med Raspberry Pi. Boksen settes
82 sammen med skruer og bolter, og jeg har vært i tvil om hvor jeg kan
83 få tak i de riktige skruene. Clas Ohlson og Jernia i nærheten har
84 sjelden hatt det jeg trenger. Men her om dagen fikk jeg et fantastisk
85 tips for oss som bor i Oslo.
86 &lt;a href=&quot;http://www.zachskruer.no/&quot;&gt;Zachariassen Jernvare AS&lt;/a&gt; i
87 &lt;a href=&quot;http://www.openstreetmap.org/?mlat=59.93421&amp;mlon=10.76795#map=19/59.93421/10.76795&quot;&gt;Hegermannsgate
88 23A på Torshov&lt;/a&gt; har et fantastisk utvalg, og åpent mellom 09:00 og
89 17:00. De selger skruer, muttere, bolter, skiver etc i løs vekt, og
90 så langt har jeg fått alt jeg har lett etter. De har i tillegg det
91 meste av annen jernvare, som verktøy, lamper, ledninger, etc. Jeg
92 håper de har nok kunder til å holde det gående lenge, da dette er en
93 butikk jeg kommer til å besøke ofte. Butikken er et funn å ha i
94 nabolaget for oss som liker å bygge litt selv. :)&lt;/p&gt;
95 </description>
96 </item>
97
98 <item>
99 <title>Visualizing GSM radio chatter using gr-gsm and Hopglass</title>
100 <link>http://people.skolelinux.org/pere/blog/Visualizing_GSM_radio_chatter_using_gr_gsm_and_Hopglass.html</link>
101 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Visualizing_GSM_radio_chatter_using_gr_gsm_and_Hopglass.html</guid>
102 <pubDate>Fri, 29 Sep 2017 10:30:00 +0200</pubDate>
103 <description>&lt;p&gt;Every mobile phone announce its existence over radio to the nearby
104 mobile cell towers. And this radio chatter is available for anyone
105 with a radio receiver capable of receiving them. Details about the
106 mobile phones with very good accuracy is of course collected by the
107 phone companies, but this is not the topic of this blog post. The
108 mobile phone radio chatter make it possible to figure out when a cell
109 phone is nearby, as it include the SIM card ID (IMSI). By paying
110 attention over time, one can see when a phone arrive and when it leave
111 an area. I believe it would be nice to make this information more
112 available to the general public, to make more people aware of how
113 their phones are announcing their whereabouts to anyone that care to
114 listen.&lt;/p&gt;
115
116 &lt;p&gt;I am very happy to report that we managed to get something
117 visualizing this information up and running for
118 &lt;a href=&quot;http://norwaymakers.org/osf17&quot;&gt;Oslo Skaperfestival 2017&lt;/a&gt;
119 (Oslo Makers Festival) taking place today and tomorrow at Deichmanske
120 library. The solution is based on the
121 &lt;a href=&quot;http://people.skolelinux.org/pere/blog/Easier_recipe_to_observe_the_cell_phones_around_you.html&quot;&gt;simple
122 recipe for listening to GSM chatter&lt;/a&gt; I posted a few days ago, and
123 will show up at the stand of &lt;a href=&quot;http://sonen.ifi.uio.no/&quot;&gt;Åpen
124 Sone from the Computer Science department of the University of
125 Oslo&lt;/a&gt;. The presentation will show the nearby mobile phones (aka
126 IMSIs) as dots in a web browser graph, with lines to the dot
127 representing mobile base station it is talking to. It was working in
128 the lab yesterday, and was moved into place this morning.&lt;/p&gt;
129
130 &lt;p&gt;We set up a fairly powerful desktop machine using Debian
131 Buster/Testing with several (five, I believe) RTL2838 DVB-T receivers
132 connected and visualize the visible cell phone towers using an
133 &lt;a href=&quot;https://github.com/marlow925/hopglass&quot;&gt;English version of
134 Hopglass&lt;/a&gt;. A fairly powerfull machine is needed as the
135 grgsm_livemon_headless processes from
136 &lt;a href=&quot;https://tracker.debian.org/pkg/gr-gsm&quot;&gt;gr-gsm&lt;/a&gt; converting
137 the radio signal to data packages is quite CPU intensive.&lt;/p&gt;
138
139 &lt;p&gt;The frequencies to listen to, are identified using a slightly
140 patched scan-and-livemon (to set the --args values for each receiver),
141 and the Hopglass data is generated using the
142 &lt;a href=&quot;https://github.com/petterreinholdtsen/IMSI-catcher/tree/meshviewer-output&quot;&gt;patches
143 in my meshviewer-output branch&lt;/a&gt;. For some reason we could not get
144 more than four SDRs working. There is also a geographical map trying
145 to show the location of the base stations, but I believe their
146 coordinates are hardcoded to some random location in Germany, I
147 believe. The code should be replaced with code to look up location in
148 a text file, a sqlite database or one of the online databases
149 mentioned in
150 &lt;a href=&quot;https://github.com/Oros42/IMSI-catcher/issues/14&quot;&gt;the github
151 issue for the topic&lt;/a&gt;.
152
153 &lt;p&gt;If this sound interesting, visit the stand at the festival!&lt;/p&gt;
154 </description>
155 </item>
156
157 <item>
158 <title>Easier recipe to observe the cell phones around you</title>
159 <link>http://people.skolelinux.org/pere/blog/Easier_recipe_to_observe_the_cell_phones_around_you.html</link>
160 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Easier_recipe_to_observe_the_cell_phones_around_you.html</guid>
161 <pubDate>Sun, 24 Sep 2017 08:30:00 +0200</pubDate>
162 <description>&lt;p&gt;A little more than a month ago I wrote
163 &lt;a href=&quot;http://people.skolelinux.org/pere/blog/Simpler_recipe_on_how_to_make_a_simple__7_IMSI_Catcher_using_Debian.html&quot;&gt;how
164 to observe the SIM card ID (aka IMSI number) of mobile phones talking
165 to nearby mobile phone base stations using Debian GNU/Linux and a
166 cheap USB software defined radio&lt;/a&gt;, and thus being able to pinpoint
167 the location of people and equipment (like cars and trains) with an
168 accuracy of a few kilometer. Since then we have worked to make the
169 procedure even simpler, and it is now possible to do this without any
170 manual frequency tuning and without building your own packages.&lt;/p&gt;
171
172 &lt;p&gt;The &lt;a href=&quot;https://tracker.debian.org/pkg/gr-gsm&quot;&gt;gr-gsm&lt;/a&gt;
173 package is now included in Debian testing and unstable, and the
174 IMSI-catcher code no longer require root access to fetch and decode
175 the GSM data collected using gr-gsm.&lt;/p&gt;
176
177 &lt;p&gt;Here is an updated recipe, using packages built by Debian and a git
178 clone of two python scripts:&lt;/p&gt;
179
180 &lt;ol&gt;
181
182 &lt;li&gt;Start with a Debian machine running the Buster version (aka
183 testing).&lt;/li&gt;
184
185 &lt;li&gt;Run &#39;&lt;tt&gt;apt install gr-gsm python-numpy python-scipy
186 python-scapy&lt;/tt&gt;&#39; as root to install required packages.&lt;/li&gt;
187
188 &lt;li&gt;Fetch the code decoding GSM packages using &#39;&lt;tt&gt;git clone
189 github.com/Oros42/IMSI-catcher.git&lt;/tt&gt;&#39;.&lt;/li&gt;
190
191 &lt;li&gt;Insert USB software defined radio supported by GNU Radio.&lt;/li&gt;
192
193 &lt;li&gt;Enter the IMSI-catcher directory and run &#39;&lt;tt&gt;python
194 scan-and-livemon&lt;/tt&gt;&#39; to locate the frequency of nearby base
195 stations and start listening for GSM packages on one of them.&lt;/li&gt;
196
197 &lt;li&gt;Enter the IMSI-catcher directory and run &#39;&lt;tt&gt;python
198 simple_IMSI-catcher.py&lt;/tt&gt;&#39; to display the collected information.&lt;/li&gt;
199
200 &lt;/ol&gt;
201
202 &lt;p&gt;Note, due to a bug somewhere the scan-and-livemon program (actually
203 &lt;a href=&quot;https://github.com/ptrkrysik/gr-gsm/issues/336&quot;&gt;its underlying
204 program grgsm_scanner&lt;/a&gt;) do not work with the HackRF radio. It does
205 work with RTL 8232 and other similar USB radio receivers you can get
206 very cheaply
207 (&lt;a href=&quot;https://www.ebay.com/sch/items/?_nkw=rtl+2832&quot;&gt;for example
208 from ebay&lt;/a&gt;), so for now the solution is to scan using the RTL radio
209 and only use HackRF for fetching GSM data.&lt;/p&gt;
210
211 &lt;p&gt;As far as I can tell, a cell phone only show up on one of the
212 frequencies at the time, so if you are going to track and count every
213 cell phone around you, you need to listen to all the frequencies used.
214 To listen to several frequencies, use the --numrecv argument to
215 scan-and-livemon to use several receivers. Further, I am not sure if
216 phones using 3G or 4G will show as talking GSM to base stations, so
217 this approach might not see all phones around you. I typically see
218 0-400 IMSI numbers an hour when looking around where I live.&lt;/p&gt;
219
220 &lt;p&gt;I&#39;ve tried to run the scanner on a
221 &lt;a href=&quot;https://wiki.debian.org/RaspberryPi&quot;&gt;Raspberry Pi 2 and 3
222 running Debian Buster&lt;/a&gt;, but the grgsm_livemon_headless process seem
223 to be too CPU intensive to keep up. When GNU Radio print &#39;O&#39; to
224 stdout, I am told there it is caused by a buffer overflow between the
225 radio and GNU Radio, caused by the program being unable to read the
226 GSM data fast enough. If you see a stream of &#39;O&#39;s from the terminal
227 where you started scan-and-livemon, you need a give the process more
228 CPU power. Perhaps someone are able to optimize the code to a point
229 where it become possible to set up RPi3 based GSM sniffers? I tried
230 using Raspbian instead of Debian, but there seem to be something wrong
231 with GNU Radio on raspbian, causing glibc to abort().&lt;/p&gt;
232 </description>
233 </item>
234
235 <item>
236 <title>Datalagringsdirektivet kaster skygger over Høyre og Arbeiderpartiet</title>
237 <link>http://people.skolelinux.org/pere/blog/Datalagringsdirektivet_kaster_skygger_over_H_yre_og_Arbeiderpartiet.html</link>
238 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Datalagringsdirektivet_kaster_skygger_over_H_yre_og_Arbeiderpartiet.html</guid>
239 <pubDate>Thu, 7 Sep 2017 21:35:00 +0200</pubDate>
240 <description>&lt;p&gt;For noen dager siden publiserte Jon Wessel-Aas en bloggpost om
241 «&lt;a href=&quot;http://www.uhuru.biz/?p=1821&quot;&gt;Konklusjonen om datalagring som
242 EU-kommisjonen ikke ville at vi skulle få se&lt;/a&gt;». Det er en
243 interessant gjennomgang av EU-domstolens syn på snurpenotovervåkning
244 av befolkningen, som er klar på at det er i strid med
245 EU-lovgivingen.&lt;/p&gt;
246
247 &lt;p&gt;Valgkampen går for fullt i Norge, og om noen få dager er siste
248 frist for å avgi stemme. En ting er sikkert, Høyre og Arbeiderpartiet
249 får ikke min stemme
250 &lt;a href=&quot;http://people.skolelinux.org/pere/blog/Datalagringsdirektivet_gj_r_at_Oslo_H_yre_og_Arbeiderparti_ikke_f_r_min_stemme_i__r.html&quot;&gt;denne
251 gangen heller&lt;/a&gt;. Jeg har ikke glemt at de tvang igjennom loven som
252 skulle pålegge alle data- og teletjenesteleverandører å overvåke alle
253 sine kunder. En lov som er vedtatt, og aldri opphevet igjen.&lt;/p&gt;
254
255 &lt;p&gt;Det er tydelig fra diskusjonen rundt grenseløs digital overvåkning
256 (eller &quot;Digital Grenseforsvar&quot; som det kalles i Orvellisk nytale) at
257 hverken Høyre og Arbeiderpartiet har noen prinsipielle sperrer mot å
258 overvåke hele befolkningen, og diskusjonen så langt tyder på at flere
259 av de andre partiene heller ikke har det. Mange av
260 &lt;a href=&quot;https://data.holderdeord.no/votes/1301946411e&quot;&gt;de som stemte
261 for Datalagringsdirektivet i Stortinget&lt;/a&gt; (64 fra Arbeiderpartiet,
262 25 fra Høyre) er fortsatt aktive og argumenterer fortsatt for å radere
263 vekk mer av innbyggernes privatsfære.&lt;/p&gt;
264
265 &lt;p&gt;Når myndighetene demonstrerer sin mistillit til folket, tror jeg
266 folket selv bør legge litt innsats i å verne sitt privatliv, ved å ta
267 i bruk ende-til-ende-kryptert kommunikasjon med sine kjente og kjære,
268 og begrense hvor mye privat informasjon som deles med uvedkommende.
269 Det er jo ingenting som tyder på at myndighetene kommer til å være vår
270 privatsfære.
271 &lt;a href=&quot;http://people.skolelinux.org/pere/blog/How_to_talk_with_your_loved_ones_in_private.html&quot;&gt;Det
272 er mange muligheter&lt;/a&gt;. Selv har jeg litt sans for
273 &lt;a href=&quot;https://ring.cx/&quot;&gt;Ring&lt;/a&gt;, som er basert på p2p-teknologi
274 uten sentral kontroll, er fri programvare, og støtter meldinger, tale
275 og video. Systemet er tilgjengelig ut av boksen fra
276 &lt;a href=&quot;https://tracker.debian.org/pkg/ring&quot;&gt;Debian&lt;/a&gt; og
277 &lt;a href=&quot;https://launchpad.net/ubuntu/+source/ring&quot;&gt;Ubuntu&lt;/a&gt;, og det
278 finnes pakker for Android, MacOSX og Windows. Foreløpig er det få
279 brukere med Ring, slik at jeg også bruker
280 &lt;a href=&quot;https://signal.org/&quot;&gt;Signal&lt;/a&gt; som nettleserutvidelse.&lt;/p&gt;
281 </description>
282 </item>
283
284 <item>
285 <title>Simpler recipe on how to make a simple $7 IMSI Catcher using Debian</title>
286 <link>http://people.skolelinux.org/pere/blog/Simpler_recipe_on_how_to_make_a_simple__7_IMSI_Catcher_using_Debian.html</link>
287 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Simpler_recipe_on_how_to_make_a_simple__7_IMSI_Catcher_using_Debian.html</guid>
288 <pubDate>Wed, 9 Aug 2017 23:59:00 +0200</pubDate>
289 <description>&lt;p&gt;On friday, I came across an interesting article in the Norwegian
290 web based ICT news magazine digi.no on
291 &lt;a href=&quot;https://www.digi.no/artikler/sikkerhetsforsker-lagde-enkel-imsi-catcher-for-60-kroner-na-kan-mobiler-kartlegges-av-alle/398588&quot;&gt;how
292 to collect the IMSI numbers of nearby cell phones&lt;/a&gt; using the cheap
293 DVB-T software defined radios. The article refered to instructions
294 and &lt;a href=&quot;https://www.youtube.com/watch?v=UjwgNd_as30&quot;&gt;a recipe by
295 Keld Norman on Youtube on how to make a simple $7 IMSI Catcher&lt;/a&gt;, and I decided to test them out.&lt;/p&gt;
296
297 &lt;p&gt;The instructions said to use Ubuntu, install pip using apt (to
298 bypass apt), use pip to install pybombs (to bypass both apt and pip),
299 and the ask pybombs to fetch and build everything you need from
300 scratch. I wanted to see if I could do the same on the most recent
301 Debian packages, but this did not work because pybombs tried to build
302 stuff that no longer build with the most recent openssl library or
303 some other version skew problem. While trying to get this recipe
304 working, I learned that the apt-&gt;pip-&gt;pybombs route was a long detour,
305 and the only piece of software dependency missing in Debian was the
306 gr-gsm package. I also found out that the lead upstream developer of
307 gr-gsm (the name stand for GNU Radio GSM) project already had a set of
308 Debian packages provided in an Ubuntu PPA repository. All I needed to
309 do was to dget the Debian source package and built it.&lt;/p&gt;
310
311 &lt;p&gt;The IMSI collector is a python script listening for packages on the
312 loopback network device and printing to the terminal some specific GSM
313 packages with IMSI numbers in them. The code is fairly short and easy
314 to understand. The reason this work is because gr-gsm include a tool
315 to read GSM data from a software defined radio like a DVB-T USB stick
316 and other software defined radios, decode them and inject them into a
317 network device on your Linux machine (using the loopback device by
318 default). This proved to work just fine, and I&#39;ve been testing the
319 collector for a few days now.&lt;/p&gt;
320
321 &lt;p&gt;The updated and simpler recipe is thus to&lt;/p&gt;
322
323 &lt;ol&gt;
324
325 &lt;li&gt;start with a Debian machine running Stretch or newer,&lt;/li&gt;
326
327 &lt;li&gt;build and install the gr-gsm package available from
328 &lt;a href=&quot;http://ppa.launchpad.net/ptrkrysik/gr-gsm/ubuntu/pool/main/g/gr-gsm/&quot;&gt;http://ppa.launchpad.net/ptrkrysik/gr-gsm/ubuntu/pool/main/g/gr-gsm/&lt;/a&gt;,&lt;/li&gt;
329
330 &lt;li&gt;clone the git repostory from &lt;a href=&quot;https://github.com/Oros42/IMSI-catcher&quot;&gt;https://github.com/Oros42/IMSI-catcher&lt;/a&gt;,&lt;/li&gt;
331
332 &lt;li&gt;run grgsm_livemon and adjust the frequency until the terminal
333 where it was started is filled with a stream of text (meaning you
334 found a GSM station).&lt;/li&gt;
335
336 &lt;li&gt;go into the IMSI-catcher directory and run &#39;sudo python simple_IMSI-catcher.py&#39; to extract the IMSI numbers.&lt;/li&gt;
337
338 &lt;/ol&gt;
339
340 &lt;p&gt;To make it even easier in the future to get this sniffer up and
341 running, I decided to package
342 &lt;a href=&quot;https://github.com/ptrkrysik/gr-gsm/&quot;&gt;the gr-gsm project&lt;/a&gt;
343 for Debian (&lt;a href=&quot;https://bugs.debian.org/871055&quot;&gt;WNPP
344 #871055&lt;/a&gt;), and the package was uploaded into the NEW queue today.
345 Luckily the gnuradio maintainer has promised to help me, as I do not
346 know much about gnuradio stuff yet.&lt;/p&gt;
347
348 &lt;p&gt;I doubt this &quot;IMSI cacher&quot; is anywhere near as powerfull as
349 commercial tools like
350 &lt;a href=&quot;https://www.thespyphone.com/portable-imsi-imei-catcher/&quot;&gt;The
351 Spy Phone Portable IMSI / IMEI Catcher&lt;/a&gt; or the
352 &lt;a href=&quot;https://en.wikipedia.org/wiki/Stingray_phone_tracker&quot;&gt;Harris
353 Stingray&lt;/a&gt;, but I hope the existance of cheap alternatives can make
354 more people realise how their whereabouts when carrying a cell phone
355 is easily tracked. Seeing the data flow on the screen, realizing that
356 I live close to a police station and knowing that the police is also
357 wearing cell phones, I wonder how hard it would be for criminals to
358 track the position of the police officers to discover when there are
359 police near by, or for foreign military forces to track the location
360 of the Norwegian military forces, or for anyone to track the location
361 of government officials...&lt;/p&gt;
362
363 &lt;p&gt;It is worth noting that the data reported by the IMSI-catcher
364 script mentioned above is only a fraction of the data broadcasted on
365 the GSM network. It will only collect one frequency at the time,
366 while a typical phone will be using several frequencies, and not all
367 phones will be using the frequencies tracked by the grgsm_livemod
368 program. Also, there is a lot of radio chatter being ignored by the
369 simple_IMSI-catcher script, which would be collected by extending the
370 parser code. I wonder if gr-gsm can be set up to listen to more than
371 one frequency?&lt;/p&gt;
372 </description>
373 </item>
374
375 <item>
376 <title>Norwegian Bokmål edition of Debian Administrator&#39;s Handbook is now available</title>
377 <link>http://people.skolelinux.org/pere/blog/Norwegian_Bokm_l_edition_of_Debian_Administrator_s_Handbook_is_now_available.html</link>
378 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Norwegian_Bokm_l_edition_of_Debian_Administrator_s_Handbook_is_now_available.html</guid>
379 <pubDate>Tue, 25 Jul 2017 21:10:00 +0200</pubDate>
380 <description>&lt;p align=&quot;center&quot;&gt;&lt;img align=&quot;center&quot; src=&quot;http://people.skolelinux.org/pere/blog/images/2017-07-25-debian-handbook-nb-testprint.png&quot;/&gt;&lt;/p&gt;
381
382 &lt;p&gt;I finally received a copy of the Norwegian Bokmål edition of
383 &quot;&lt;a href=&quot;https://debian-handbook.info/&quot;&gt;The Debian Administrator&#39;s
384 Handbook&lt;/a&gt;&quot;. This test copy arrived in the mail a few days ago, and
385 I am very happy to hold the result in my hand. We spent around one and a half year translating it. This paperbook edition
386 &lt;a href=&quot;https://debian-handbook.info/get/#norwegian&quot;&gt;is available
387 from lulu.com&lt;/a&gt;. If you buy it quickly, you save 25% on the list
388 price. The book is also available for download in electronic form as
389 PDF, EPUB and Mobipocket, as can be
390 &lt;a href=&quot;https://debian-handbook.info/browse/nb-NO/stable/&quot;&gt;read online
391 as a web page&lt;/a&gt;.&lt;/p&gt;
392
393 &lt;p&gt;This is the second book I publish (the first was the book
394 &quot;&lt;a href=&quot;http://free-culture.cc/&quot;&gt;Free Culture&lt;/a&gt;&quot; by Lawrence Lessig
395 in
396 &lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/free-culture/paperback/product-22440520.html&quot;&gt;English&lt;/a&gt;,
397 &lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/culture-libre/paperback/product-22645082.html&quot;&gt;French&lt;/a&gt;
398 and
399 &lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22441576.html&quot;&gt;Norwegian
400 Bokmål&lt;/a&gt;), and I am very excited to finally wrap up this
401 project. I hope
402 &quot;&lt;a href=&quot;http://www.lulu.com/shop/rapha%C3%ABl-hertzog-and-roland-mas/h%C3%A5ndbok-for-debian-administratoren/paperback/product-23262290.html&quot;&gt;Håndbok
403 for Debian-administratoren&lt;/a&gt;&quot; will be well received.&lt;/p&gt;
404 </description>
405 </item>
406
407 <item>
408 <title>«Rapporten ser ikke på informasjonssikkerhet knyttet til personlig integritet»</title>
409 <link>http://people.skolelinux.org/pere/blog/_Rapporten_ser_ikke_p__informasjonssikkerhet_knyttet_til_personlig_integritet_.html</link>
410 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/_Rapporten_ser_ikke_p__informasjonssikkerhet_knyttet_til_personlig_integritet_.html</guid>
411 <pubDate>Tue, 27 Jun 2017 17:50:00 +0200</pubDate>
412 <description>&lt;p&gt;Jeg kom over teksten
413 «&lt;a href=&quot;https://freedom-to-tinker.com/2017/06/21/killing-car-privacy-by-federal-mandate/&quot;&gt;Killing
414 car privacy by federal mandate&lt;/a&gt;» av Leonid Reyzin på Freedom to
415 Tinker i dag, og det gleder meg å se en god gjennomgang om hvorfor det
416 er et urimelig inngrep i privatsfæren å la alle biler kringkaste sin
417 posisjon og bevegelse via radio. Det omtalte forslaget basert på
418 Dedicated Short Range Communication (DSRC) kalles Basic Safety Message
419 (BSM) i USA og Cooperative Awareness Message (CAM) i Europa, og det
420 norske Vegvesenet er en av de som ser ut til å kunne tenke seg å
421 pålegge alle biler å fjerne nok en bit av innbyggernes privatsfære.
422 Anbefaler alle å lese det som står der.
423
424 &lt;p&gt;Mens jeg tittet litt på DSRC på biler i Norge kom jeg over et sitat
425 jeg synes er illustrativt for hvordan det offentlige Norge håndterer
426 problemstillinger rundt innbyggernes privatsfære i SINTEF-rapporten
427 «&lt;a href=&quot;https://www.sintef.no/publikasjoner/publikasjon/Download/?pubid=SINTEF+A23933&quot;&gt;Informasjonssikkerhet
428 i AutoPASS-brikker&lt;/a&gt;» av Trond Foss:&lt;/p&gt;
429
430 &lt;p&gt;&lt;blockquote&gt;
431 «Rapporten ser ikke på informasjonssikkerhet knyttet til personlig
432 integritet.»
433 &lt;/blockquote&gt;&lt;/p&gt;
434
435 &lt;p&gt;Så enkelt kan det tydeligvis gjøres når en vurderer
436 informasjonssikkerheten. Det holder vel at folkene på toppen kan si
437 at «Personvernet er ivaretatt», som jo er den populære intetsigende
438 frasen som gjør at mange tror enkeltindividers integritet tas vare på.
439 Sitatet fikk meg til å undres på hvor ofte samme tilnærming, å bare se
440 bort fra behovet for personlig itegritet, blir valgt når en velger å
441 legge til rette for nok et inngrep i privatsfæren til personer i
442 Norge. Det er jo sjelden det får reaksjoner. Historien om
443 reaksjonene på Helse Sør-Østs tjenesteutsetting er jo sørgelig nok et
444 unntak og toppen av isfjellet, desverre. Tror jeg fortsatt takker nei
445 til både AutoPASS og holder meg så langt unna det norske helsevesenet
446 som jeg kan, inntil de har demonstrert og dokumentert at de verdsetter
447 individets privatsfære og personlige integritet høyere enn kortsiktig
448 gevist og samfunnsnytte.&lt;/p&gt;
449 </description>
450 </item>
451
452 <item>
453 <title>Updated sales number for my Free Culture paper editions</title>
454 <link>http://people.skolelinux.org/pere/blog/Updated_sales_number_for_my_Free_Culture_paper_editions.html</link>
455 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Updated_sales_number_for_my_Free_Culture_paper_editions.html</guid>
456 <pubDate>Mon, 12 Jun 2017 11:40:00 +0200</pubDate>
457 <description>&lt;p&gt;It is pleasing to see that the work we put down in publishing new
458 editions of the classic &lt;a href=&quot;http://www.free-culture.cc/&quot;&gt;Free
459 Culture book&lt;/a&gt; by the founder of the Creative Commons movement,
460 Lawrence Lessig, is still being appreciated. I had a look at the
461 latest sales numbers for the paper edition today. Not too impressive,
462 but happy to see some buyers still exist. All the revenue from the
463 books is sent to the &lt;a href=&quot;https://creativecommons.org/&quot;&gt;Creative
464 Commons Corporation&lt;/a&gt;, and they receive the largest cut if you buy
465 directly from Lulu. Most books are sold via Amazon, with Ingram
466 second and only a small fraction directly from Lulu. The ebook
467 edition is available for free from
468 &lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig&quot;&gt;Github&lt;/a&gt;.&lt;/p&gt;
469
470 &lt;table border=&quot;0&quot;&gt;
471 &lt;tr&gt;&lt;th rowspan=&quot;2&quot; valign=&quot;bottom&quot;&gt;Title / language&lt;/th&gt;&lt;th colspan=&quot;3&quot;&gt;Quantity&lt;/th&gt;&lt;/tr&gt;
472 &lt;tr&gt;&lt;th&gt;2016 jan-jun&lt;/th&gt;&lt;th&gt;2016 jul-dec&lt;/th&gt;&lt;th&gt;2017 jan-may&lt;/th&gt;&lt;/tr&gt;
473
474 &lt;tr&gt;
475 &lt;td&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/culture-libre/paperback/product-22645082.html&quot;&gt;Culture Libre / French&lt;/a&gt;&lt;/td&gt;
476 &lt;td align=&quot;right&quot;&gt;3&lt;/td&gt;
477 &lt;td align=&quot;right&quot;&gt;6&lt;/td&gt;
478 &lt;td align=&quot;right&quot;&gt;15&lt;/td&gt;
479 &lt;/tr&gt;
480
481 &lt;tr&gt;
482 &lt;td&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22441576.html&quot;&gt;Fri kultur / Norwegian&lt;/a&gt;&lt;/td&gt;
483 &lt;td align=&quot;right&quot;&gt;7&lt;/td&gt;
484 &lt;td align=&quot;right&quot;&gt;1&lt;/td&gt;
485 &lt;td align=&quot;right&quot;&gt;0&lt;/td&gt;
486 &lt;/tr&gt;
487
488 &lt;tr&gt;
489 &lt;td&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/free-culture/paperback/product-22440520.html&quot;&gt;Free Culture / English&lt;/a&gt;&lt;/td&gt;
490 &lt;td align=&quot;right&quot;&gt;14&lt;/td&gt;
491 &lt;td align=&quot;right&quot;&gt;27&lt;/td&gt;
492 &lt;td align=&quot;right&quot;&gt;16&lt;/td&gt;
493 &lt;/tr&gt;
494
495 &lt;tr&gt;
496 &lt;td&gt;Total&lt;/td&gt;
497 &lt;td align=&quot;right&quot;&gt;24&lt;/td&gt;
498 &lt;td align=&quot;right&quot;&gt;34&lt;/td&gt;
499 &lt;td align=&quot;right&quot;&gt;31&lt;/td&gt;
500 &lt;/tr&gt;
501
502 &lt;/table&gt;
503
504 &lt;p&gt;A bit sad to see the low sales number on the Norwegian edition, and
505 a bit surprising the English edition still selling so well.&lt;/p&gt;
506
507 &lt;p&gt;If you would like to translate and publish the book in your native
508 language, I would be happy to help make it happen. Please get in
509 touch.&lt;/p&gt;
510 </description>
511 </item>
512
513 </channel>
514 </rss>