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15 <a href=
"http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen
</a>
22 <h3>Entries from November
2014.
</h3>
26 <a href=
"http://people.skolelinux.org/pere/blog/How_to_stay_with_sysvinit_in_Debian_Jessie.html">How to stay with sysvinit in Debian Jessie
</a>
32 <p>By now, it is well known that Debian Jessie will not be using
33 sysvinit as its boot system by default. But how can one keep using
34 sysvinit in Jessie? It is fairly easy, and here are a few recipes,
36 <a href=
"http://www.vitavonni.de/blog/201410/2014102101-avoiding-systemd.html">Erich
38 <a href=
"http://smcv.pseudorandom.co.uk/2014/still_universal/">Simon
41 <p>If you already are using Wheezy and want to upgrade to Jessie and
42 keep sysvinit as your boot system, create a file
43 <tt>/etc/apt/preferences.d/use-sysvinit
</tt> with this content before
50 </pre></blockquote><p>
52 <p>This file content will tell apt and aptitude to not consider
53 installing systemd-sysv as part of any installation and upgrade
54 solution when resolving dependencies, and thus tell it to avoid
55 systemd as a default boot system. The end result should be that the
56 upgraded system keep using sysvinit.
</p>
58 <p>If you are installing Jessie for the first time, there is no way to
59 get sysvinit installed by default (debootstrap used by
60 debian-installer have no option for this), but one can tell the
61 installer to switch to sysvinit before the first boot. Either by
62 using a kernel argument to the installer, or by adding a line to the
63 preseed file used. First, the kernel command line argument:
66 preseed/
late_command="in-target apt-get install --purge -y sysvinit-core"
67 </pre></blockquote><p>
69 <p>Next, the line to use in a preseed file:
</p>
72 d-i preseed/late_command string in-target apt-get install -y sysvinit-core
73 </pre></blockquote><p>
75 <p>One can of course also do this after the first boot by installing
76 the sysvinit-core package.
</p>
78 <p>I recommend only using sysvinit if you really need it, as the
79 sysvinit boot sequence in Debian have several hardware specific bugs
80 on Linux caused by the fact that it is unpredictable when hardware
81 devices show up during boot. But on the other hand, the new default
82 boot system still have a few rough edges I hope will be fixed before
83 Jessie is released.
</p>
85 <p>Update
2014-
11-
26: Inspired by
86 <ahref=
"https://www.mirbsd.org/permalinks/wlog-10-tg_e20141125-tg.htm#e20141125-tg_wlog-10-tg">a
87 blog post by Torsten Glaser
</a>, added --purge to the preseed
94 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
99 <div class=
"padding"></div>
103 <a href=
"http://people.skolelinux.org/pere/blog/Hvordan_vurderer_regjeringen_H_264_patentutfordringen_.html">Hvordan vurderer regjeringen H
.264-patentutfordringen?
</a>
109 <p>For en stund tilbake spurte jeg Fornyingsdepartementet om hvilke
110 juridiske vurderinger rundt patentproblemstillingen som var gjort da
111 H
.264 ble tatt inn i
<a href=
"http://standard.difi.no/">statens
112 referansekatalog over standarder
</a>. Stig Hornnes i FAD tipset meg
113 om følgende som står i oppsumeringen til høringen om
114 referansekatalogen versjon
2.0, som jeg siden ved hjelp av en
115 innsynsforespørsel fikk tak i
116 <a href=
"http://wiki.nuug.no/uttalelser/200901-standardkatalog-v2?action=AttachFile&do=get&target=kongelig-resolusjon.pdf">PDF-utgaven av
</a>
117 datert
2009-
06-
03 (saksnummer
200803291, saksbehandler Henrik
120 <p>Der står det følgende om problemstillingen:
</p>
123 <strong>4.4 Patentproblematikk
</strong>
125 <p>NUUG og Opera ser det som særlig viktig at forslagene knyttet til
126 lyd og video baserer seg på de royalty-frie standardene Vorbis, Theora
129 <p>Kommentarene relaterer seg til at enkelte standarder er åpne, men
130 inneholder tekniske prosedyrer som det i USA (og noen andre land som
131 Japan) er gitt patentrettigheter til. I vårt tilfelle berører dette
132 spesielt standardene Mp3 og H
.264, selv om Politidirektoratet peker på
133 at det muligens kan være tilsvarende problematikk også for Theora og
134 Vorbis. Dette medfører at det i USA kan kreves royalties for bruk av
135 tekniske løsninger knyttet til standardene, et krav som også
136 håndheves. Patenter kan imidlertid bare hevdes i de landene hvor
137 patentet er gitt, så amerikanske patenter gjelder ikke andre steder
140 <p>Spesielt for utvikling av fri programvare er patenter
141 problematisk. GPL, en "grunnleggende" lisens for distribusjon av fri
142 programvare, avviser at programvare kan distribueres under denne
143 lisensen hvis det inneholder referanser til patenterte rutiner som
144 utløser krav om royalties. Det er imidlertid uproblematisk å
145 distribuere fri programvareløsninger under GPL som benytter de
146 aktuelle standardene innen eller mellom land som ikke anerkjenner
147 patentene. Derfor finner vi også flere implementeringer av Mp3 og
148 H
.264 som er fri programvare, lisensiert under GPL.
</p>
150 <p>I Norge og EU er patentlovgivningen langt mer restriktiv enn i USA,
151 men det er også her mulig å få patentert metoder for løsning av et
152 problem som relaterer seg til databehandling. Det er AIF bekjent ikke
153 relevante patenter i EU eller Norge hva gjelder H
.264 og Mp3, men
154 muligheten for at det finnes patenter uten at det er gjort krav om
155 royalties eller at det senere vil gis slike patenter kan ikke helt
158 <p>AIF mener det er et behov for å gi offentlige virksomheter mulighet
159 til å benytte antatt royaltyfrie åpne standarder som et likeverdig
160 alternativ eller i tillegg til de markedsledende åpne standardene.
</p>
164 <p>Det ser dermed ikke ut til at de har vurdert patentspørsmålet i
165 sammenheng med opphavsrettsvilkår slik de er formulert for f.eks.
166 Apple Final Cut Pro, Adobe Premiere Pro, Avid og Sorenson-verktøyene,
167 der det kreves brukstillatelse for patenter som ikke er gyldige i
168 Norge for å bruke disse verktøyene til annet en personlig og ikke
169 kommersiell aktivitet når det gjelder H
.264-video. Jeg må nok lete
170 videre etter svar på det spørsmålet.
</p>
176 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/h264">h264
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/standard">standard
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/video">video
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/web">web
</a>.
181 <div class=
"padding"></div>
185 <a href=
"http://people.skolelinux.org/pere/blog/A_Debian_package_for_SMTP_via_Tor__aka_SMTorP__using_exim4.html">A Debian package for SMTP via Tor (aka SMTorP) using exim4
</a>
191 <p>The right to communicate with your friends and family in private,
192 without anyone snooping, is a right every citicen have in a liberal
193 democracy. But this right is under serious attack these days.
</p>
195 <p>A while back it occurred to me that one way to make the dragnet
196 surveillance conducted by NSA, GCHQ, FRA and others (and confirmed by
197 the whisleblower Snowden) more expensive for Internet email,
198 is to deliver all email using SMTP via Tor. Such SMTP option would be
199 a nice addition to the FreedomBox project if we could send email
200 between FreedomBox machines without leaking metadata about the emails
201 to the people peeking on the wire. I
202 <a href=
"http://lists.alioth.debian.org/pipermail/freedombox-discuss/2014-October/006493.html">proposed
203 this on the FreedomBox project mailing list in October
</a> and got a
204 lot of useful feedback and suggestions. It also became obvious to me
205 that this was not a novel idea, as the same idea was tested and
206 documented by Johannes Berg as early as
2006, and both
207 <a href=
"https://github.com/pagekite/Mailpile/wiki/SMTorP">the
208 Mailpile
</a> and
<a href=
"http://dee.su/cables">the Cables
</a> systems
209 propose a similar method / protocol to pass emails between users.
</p>
211 <p>To implement such system one need to set up a Tor hidden service
212 providing the SMTP protocol on port
25, and use email addresses
213 looking like username@hidden-service-name.onion. With such addresses
214 the connections to port
25 on hidden-service-name.onion using Tor will
215 go to the correct SMTP server. To do this, one need to configure the
216 Tor daemon to provide the hidden service and the mail server to accept
217 emails for this .onion domain. To learn more about Exim configuration
218 in Debian and test the design provided by Johannes Berg in his FAQ, I
219 set out yesterday to create a Debian package for making it trivial to
220 set up such SMTP over Tor service based on Debian. Getting it to work
221 were fairly easy, and
222 <a href=
"https://github.com/petterreinholdtsen/exim4-smtorp">the
223 source code for the Debian package
</a> is available from github. I
224 plan to move it into Debian if further testing prove this to be a
227 <p>If you want to test this, set up a blank Debian machine without any
228 mail system installed (or run
<tt>apt-get purge exim4-config
</tt> to
229 get rid of exim4). Install tor, clone the git repository mentioned
230 above, build the deb and install it on the machine. Next, run
231 <tt>/usr/lib/exim4-smtorp/setup-exim-hidden-service
</tt> and follow
232 the instructions to get the service up and running. Restart tor and
233 exim when it is done, and test mail delivery using swaks like
237 torsocks swaks --server dutlqrrmjhtfa3vp.onion \
238 --to fbx@dutlqrrmjhtfa3vp.onion
239 </pre></blockquote></p>
241 <p>This will test the SMTP delivery using tor. Replace the email
242 address with your own address to test your server. :)
</p>
244 <p>The setup procedure is still to complex, and I hope it can be made
245 easier and more automatic. Especially the tor setup need more work.
246 Also, the package include a tor-smtp tool written in C, but its task
247 should probably be rewritten in some script language to make the deb
248 architecture independent. It would probably also make the code easier
249 to review. The tor-smtp tool currently need to listen on a socket for
250 exim to talk to it and is started using xinetd. It would be better if
251 no daemon and no socket is needed. I suspect it is possible to get
252 exim to run a command line tool for delivery instead of talking to a
253 socket, and hope to figure out how in a future version of this
256 <p>Until I wipe my test machine, I can be reached using the
257 <tt>fbx@dutlqrrmjhtfa3vp.onion
</tt> mail address, deliverable over
264 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/personvern">personvern
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance
</a>.
269 <div class=
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"http://people.skolelinux.org/pere/blog/archive/2012/07/">July (
17)
</a></li>
491 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/08/">August (
6)
</a></li>
493 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/09/">September (
9)
</a></li>
495 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/10/">October (
17)
</a></li>
497 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/11/">November (
10)
</a></li>
499 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/12/">December (
7)
</a></li>
506 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/01/">January (
16)
</a></li>
508 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/02/">February (
6)
</a></li>
510 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/03/">March (
6)
</a></li>
512 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/04/">April (
7)
</a></li>
514 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/05/">May (
3)
</a></li>
516 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/06/">June (
2)
</a></li>
518 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/07/">July (
7)
</a></li>
520 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/08/">August (
6)
</a></li>
522 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/09/">September (
4)
</a></li>
524 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/10/">October (
2)
</a></li>
526 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/11/">November (
3)
</a></li>
528 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/12/">December (
1)
</a></li>
535 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/01/">January (
2)
</a></li>
537 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/02/">February (
1)
</a></li>
539 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/03/">March (
3)
</a></li>
541 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/04/">April (
3)
</a></li>
543 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/05/">May (
9)
</a></li>
545 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/06/">June (
14)
</a></li>
547 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/07/">July (
12)
</a></li>
549 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/08/">August (
13)
</a></li>
551 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/09/">September (
7)
</a></li>
553 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/10/">October (
9)
</a></li>
555 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/11/">November (
13)
</a></li>
557 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/12/">December (
12)
</a></li>
564 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/01/">January (
8)
</a></li>
566 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/02/">February (
8)
</a></li>
568 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/03/">March (
12)
</a></li>
570 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/04/">April (
10)
</a></li>
572 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/05/">May (
9)
</a></li>
574 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/06/">June (
3)
</a></li>
576 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/07/">July (
4)
</a></li>
578 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/08/">August (
3)
</a></li>
580 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/09/">September (
1)
</a></li>
582 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/10/">October (
2)
</a></li>
584 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/11/">November (
3)
</a></li>
586 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/12/">December (
3)
</a></li>
593 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2008/11/">November (
5)
</a></li>
595 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2008/12/">December (
7)
</a></li>
606 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (
16)
</a></li>
608 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/amiga">amiga (
1)
</a></li>
610 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/aros">aros (
1)
</a></li>
612 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bankid">bankid (
4)
</a></li>
614 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/betalkontant">betalkontant (
8)
</a></li>
616 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (
11)
</a></li>
618 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (
17)
</a></li>
620 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bsa">bsa (
2)
</a></li>
622 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (
2)
</a></li>
624 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian (
168)
</a></li>
626 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (
158)
</a></li>
628 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (
4)
</a></li>
630 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/digistan">digistan (
11)
</a></li>
632 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/dld">dld (
17)
</a></li>
634 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/docbook">docbook (
26)
</a></li>
636 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (
4)
</a></li>
638 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/english">english (
411)
</a></li>
640 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (
23)
</a></li>
642 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (
14)
</a></li>
644 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (
34)
</a></li>
646 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (
9)
</a></li>
648 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (
20)
</a></li>
650 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/h264">h264 (
20)
</a></li>
652 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/intervju">intervju (
42)
</a></li>
654 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (
16)
</a></li>
656 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/kart">kart (
22)
</a></li>
658 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/kodi">kodi (
4)
</a></li>
660 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ldap">ldap (
9)
</a></li>
662 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lego">lego (
4)
</a></li>
664 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lenker">lenker (
8)
</a></li>
666 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (
2)
</a></li>
668 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (
1)
</a></li>
670 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (
8)
</a></li>
672 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (
42)
</a></li>
674 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (
12)
</a></li>
676 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/noark5">noark5 (
18)
</a></li>
678 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk (
309)
</a></li>
680 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug (
196)
</a></li>
682 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (
37)
</a></li>
684 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/open311">open311 (
2)
</a></li>
686 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (
75)
</a></li>
688 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/personvern">personvern (
111)
</a></li>
690 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/raid">raid (
2)
</a></li>
692 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reactos">reactos (
1)
</a></li>
694 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reprap">reprap (
11)
</a></li>
696 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rfid">rfid (
3)
</a></li>
698 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/robot">robot (
12)
</a></li>
700 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rss">rss (
1)
</a></li>
702 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ruter">ruter (
7)
</a></li>
704 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (
2)
</a></li>
706 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (
56)
</a></li>
708 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (
4)
</a></li>
710 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (
5)
</a></li>
712 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/standard">standard (
67)
</a></li>
714 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (
6)
</a></li>
716 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (
12)
</a></li>
718 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (
57)
</a></li>
720 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (
4)
</a></li>
722 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/usenix">usenix (
2)
</a></li>
724 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/valg">valg (
9)
</a></li>
726 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (
17)
</a></li>
728 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/video">video (
73)
</a></li>
730 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (
4)
</a></li>
732 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/web">web (
42)
</a></li>
738 <p style=
"text-align: right">
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