add sources (orgmode beamer) hack4glarus presentation
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presentations/eXO-2019-12-01-hack4glarus_hackathon-results.org
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presentations/eXO-2019-12-01-hack4glarus_hackathon-results.org
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# org-beamer-export-to-pdf
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# #####
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# basic
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# #####
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#+startup: beamer
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#+LaTeX_CLASS: beamer
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#+LaTeX_CLASS_OPTIONS: [bigger]
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# #+BEAMER_FRAME_LEVEL: 3
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# #+BEAMER_FRAME_LEVEL: 3
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# #+OPTIONS: H:3n
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#+OPTIONS: H:3 num:t toc:nil \n:nil todo:nil pri:nil @:t ::t |:t ^:{} _:{} *:t TeX:t LaTeX:t
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# #+OPTIONS: H:1 num:t toc:nil \n:nil todo:nil pri:nil @:t ::t |:t ^:{} _:{} *:t TeX:t LaTeX:t
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# source: http://orgmode.org/manual/Beamer-export.html
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# #####
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# style
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# #####
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#+latex_header: \mode<beamer>{\usetheme{Goettingen}}
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# #+latex_header: \mode<beamer>{\usetheme{Hannover}}
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# #+BEAMER_THEME: Gottingen
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#+latex_header: \mode<beamer>{\usepackage{times}}
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#+latex_header: \setbeamertemplate{footline}[page number]{}
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#+latex_header: \setbeamerfont{page number in head/foot}{size=\small}}
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# In increasing order: \tiny, \scriptsize, \footnotesize, \small, \normalsize (default), \large, \Large, \LARGE, \huge and \Huge.
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# http://www.latex-community.org/forum/viewtopic.php?f=4&t=14510
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# #+latex_header: \setbeamertemplate{footline}[frame number]
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#+latex_header: \setbeamertemplate{navigation symbols}{}
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# http://angel-de-vicente.blogspot.com.es/2013/04/presentations-with-org-mode-beamer.html
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# Beamer theme gallery: Goettingen default default
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# \usetheme{Goettingen}
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# http://www.latex-community.org/forum/viewtopic.php?f=4&t=13865
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# http://orgmode.org/worg/exporters/beamer/tutorial.html
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# presenting the sections
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# disable it!
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# this is very formal
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# #+latex_header: \AtBeginSection[]{\begin{frame}<beamer>\frametitle{Chapter}\tableofcontents[currentsection]\end{frame}}
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# #####
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# data
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# #####
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#+TITLE: exo.cat contributions in hack4glarus 2019
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# #+latex_header: \subtitle{null}
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#+AUTHOR: Roger Garcia and Pedro
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#+DATE: 2019-12-01 Sunday
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# #+DESCRIPTION:
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# #+KEYWORDS:
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# #+LANGUAGE: en
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# #+OPTIONS: H:2 num:t toc:t \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
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# #+OPTIONS: TeX:t LaTeX:t skip:nil d:nil todo:t pri:nil tags:not-in-toc
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# #+INFOJS_OPT: view:nil toc:nil ltoc:t mouse:underline buttons:0 path:http://orgmode.org/org-info.js
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# #+EXPORT_SELECT_TAGS: export
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# #+EXPORT_EXCLUDE_TAGS: noexport
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# #+LINK_UP:
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# #+LINK_HOME:
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* who we are
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*** who we are
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- exo.cat members (not for profit ISP) that is part of the community network (guifi.net)
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- mostly runned by volunteers, /sometimes/ we get paid
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- in guifi.net we are a community with users, volunteers and professionals, with similar interactions to open source and free software projects but in the field of telecommunications and deploying networks (forks are more expensive)
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- you might know other community networks like: freifunk.net (germany), funkfeuer.at (austria), ffdn.org (france), ninux (italy). Some of us participate in battlemesh.org (international meeting for community networks). Do you have something like this in Switzerland? :)
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* internet access (ISP perspective)
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*** internet access (ISP perspective)
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accelppp is a tunnel provider for PPPoE and L2TP. We install it from sources (https://gitlab.com/guifi-exo/wiki/blob/master/howto/l2tp-server/accel-ppp.md)
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- connect it with prometheus and the snmp exporter
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- upgrade from 1.11 to 1.12, from debian stretch to buster
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- TODO: include the documentation (maybe howto/prometheus.md)
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* request-tracker
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*** request-tracker
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helpdesk tool for users reporting that internet is working (at the moment we use humans to replace prometheus)
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we install from debian package documented here https://gitlab.com/guifi-exo/wiki/blob/master/howto/request-tracker.md
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tested and added to documentation:
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- migrate from MySQL to PostgreSQL
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- upgrade from debian stretch to buster
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* ipv6 issues in our org
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*** ipv6 issues in our org
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- ipv6 communication problems between ungleich.ch and guifi.net
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- solution: our wholesaler provider (fundacio.guifi.net) applied a static route to select a specific carrier that does the good job
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- TODO / open issue: we detected a loop in our routing of IPv6
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- we did a blackhole
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- TODO we should emit an /unreachable network/ (we use vyos.io)
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- maybe we require to have /full table/ (participate directly on the internet)
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- better announcing the IPv6 network in ripe database
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thanks nico (ungleich.ch) for helping us with guidance in ipv6
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* cdist
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*** cdist
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cdist orchestrator looks great for us, unfortunately we could not spend time on it
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- lines of code (remembers me to the situation of OpenVPN vs wireguard.io)
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- we use ansible ansible (1 million lines of code in python)
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- but cdist has 30k lines of code: 12k shell, 9k rst, 8k python
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- we have nearly 200 openwrt-based mesh devices http://dsg.ac.upc.edu/qmpmon that should be orchestrated (firmware flashing, configuration changes, file changes)
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thanks nico (ungleich.ch) for the crash course in cdist
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