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       <dc:date>2026-04-18T15:11:06+00:00</dc:date>
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        <url>https://wiki.csgalileo.org/_media/wiki/logo.png</url>
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    <item rdf:about="https://wiki.csgalileo.org/tips/xpath?rev=1443085970&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2015-09-24T09:12:50+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>xpath</title>
        <link>https://wiki.csgalileo.org/tips/xpath?rev=1443085970&amp;do=diff</link>
        <description>xpath

With chromium in developer mode right click on the node =&gt; “Copy XPath”

With lxml and python


sudo apt-get install libxml2-dev libxslt1-dev python-dev
pip install lxml


print xpath of all elements


from lxml import html, etree

htmltext=&quot;bla bla bla&quot;

doc=html.fromstring(htmltext)
tree=etree.ElementTree(doc)
for e in tree.iter():
    print e.text,tree.getpath(e)</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2020-12-05T15:23:08+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>otp</title>
        <link>https://wiki.csgalileo.org/tips/otp?rev=1607181788&amp;do=diff</link>
        <description>oath

PREREQUISITO: INSTALLARE liboath0 libpam-oath oathtool

1) $ export HEX_SECRET=$(head -15 /dev/urandom | sha1sum | cut -b 1-30)

2) $ oathtool --verbose --totp $HEX_SECRET --digits=8

Risultato -&gt;
Hex secret: b5abe8im355c1127sd385a6dd0597x
Base32 secret: YWV2RLGFVQUSPLMZTJW5QQQ8
Digits: 8
Window size: 0
Step size (seconds): 30
Start time: 1970-01-01 00:00:00 UTC (0)
Current time: 2020-07-26 15:03:57 UTC (1595775837)
Counter: 0x32BA74F (53192527)</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2025-11-21T08:11:09+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ssl</title>
        <link>https://wiki.csgalileo.org/tips/ssl?rev=1763712669&amp;do=diff</link>
        <description>SSL certificates

ssl certificates letsencrypt

letsencrypt certification authority is free, automated and open.

letsencrypt staging

get ca certificate and use with curl


API_HOST=sso.csgalileo.org
echo quit | openssl s_client -showcerts -servername &quot;$API_HOST&quot; -connect &quot;$API_HOST&quot;:443 &gt; cacert.pem
curl --cacert cacert.pem https://sso.csgalileo.org/

.</description>
    </item>
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        <dc:format>text/html</dc:format>
        <dc:date>2020-03-27T17:21:37+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>uwb</title>
        <link>https://wiki.csgalileo.org/tips/uwb?rev=1585329697&amp;do=diff</link>
        <description>UWB 802.15.4a

	* ETSI regulation
	* regulation

	* uwbleader tag magnetico tag veicolo
	* kinexon
	* esempio HW
	* pozyx
	* uwbaide
	* filippetti</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/atom?rev=1508092341&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-10-15T18:32:21+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>atom</title>
        <link>https://wiki.csgalileo.org/tips/atom?rev=1508092341&amp;do=diff</link>
        <description>Atom IDE

download and install

update

/usr/local/bin/atom-update


#!/bin/bash    
wget -q https://github.com/atom/atom/releases/latest -O /tmp/latest
MATCHEDROW=$(awk -F &#039;[&lt;&gt;]&#039; &#039;/href=&quot;.*atom-amd64.deb/&#039; /tmp/latest)
LATEST=$(echo $MATCHEDROW | grep -o -P &#039;(?&lt;=href=&quot;).*(?=&quot; rel)&#039;)
VER_LATEST=$(echo $MATCHEDROW | rev | cut -d&quot;/&quot; -f 2 | rev | sed &#039;s/v//g&#039;)
VER_INST=$(dpkg -l atom | tail -n1 | tr -s &#039; &#039; | cut -d&quot; &quot; -f 3)
if [ &quot;$VER_LATEST&quot; != &quot;$VER_INST&quot; ]; then
   wget --progress=bar -q &quot;https:…</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/calibre?rev=1521870712&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-03-24T05:51:52+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>calibre</title>
        <link>https://wiki.csgalileo.org/tips/calibre?rev=1521870712&amp;do=diff</link>
        <description>Calibre

Headline

	* DRM kindle plugin

Adobe Digital editions


apt install winetricks:i386


Run winetricks and install app: adobe digital edition

With winetricks opend a commandline shell in “adobe digital edition” wineprefix

Download python 32 bit installer and install with</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/cordova?rev=1424362257&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2015-02-19T16:10:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>cordova</title>
        <link>https://wiki.csgalileo.org/tips/cordova?rev=1424362257&amp;do=diff</link>
        <description>Cordova

Install

Install nodejs and npm


sudo apt-get install nodejs npm


Install cordova


sudo npm install -g cordova


cordova need node and ubuntu install nodejs


sudo ln -s /usr/bin/nodejs /usr/local/bin/node


install cordova-browser from git to have linux support</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/gnss?rev=1661461389&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-08-25T21:03:09+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>gnss</title>
        <link>https://wiki.csgalileo.org/tips/gnss?rev=1661461389&amp;do=diff</link>
        <description>GNSS

	* wonderful introduction on GNSS
	* stations that broadcast real time RTCM (protocol) Radio Technical Commission for Maritime
	* ubxtool examples
	* NEO-M9N
	* ZED-F9P

2022

Use gpsd as ntrip client on ublox device

pygnssutils

Configure ublox as base station and run an rtrip server with PyGPSClient

2020

ntrip caster

	* &lt;https://gitlab.com/ihfazhillah/simple-ntrip-caster/-/tree/master&gt;
	* &lt;https://gitlab.com/hydrasystem/ntripcaster.git&gt;</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/pyramid?rev=1439893971&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2015-08-18T10:32:51+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>pyramid</title>
        <link>https://wiki.csgalileo.org/tips/pyramid?rev=1439893971&amp;do=diff</link>
        <description>Pyramid

classic

Environment

library


BASE=/lab/ztl
cd $BASE

virtualenv lib
. lib/bin/activate
pip install pyramid


library activation in active shell (for starting project and running)


. lib/bin/activate


start project ztlbrain


pcreate --scaffold alchemy ztlbrain
cd ztlbrain
python setup.py develop</description>
    </item>
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        <dc:format>text/html</dc:format>
        <dc:date>2021-09-30T10:10:28+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>dns</title>
        <link>https://wiki.csgalileo.org/tips/dns?rev=1632996628&amp;do=diff</link>
        <description>DNS

certbot integration

	* &lt;https://wiki.archlinux.org/title/Certbot#Configure_BIND_for_rfc2136&gt;

generate tsig key


tsig-keygen -a HMAC-SHA512 galileo-tsig-key


enable rfc2136 updates on domain in /etc/bind/named.conf.local


zone &quot;nawigare.it&quot; {
    ......
            
    // this is for certbot
    check-names warn;
    update-policy {
        grant galileo-tsig-key name _acme-challenge.nawigare.it. txt;
        };
    };</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/ionic?rev=1502106885&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-08-07T11:54:45+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ionic</title>
        <link>https://wiki.csgalileo.org/tips/ionic?rev=1502106885&amp;do=diff</link>
        <description>Ionic

Prerequisites

nodejs (latest)


sudo apt-get install build-essential
# curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -
# sudo apt install nodejs


nodeenv


sudo apt-get install python-pip
sudo pip install nodeenv


Create library</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/openalpr?rev=1444377380&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2015-10-09T07:56:20+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>openalpr</title>
        <link>https://wiki.csgalileo.org/tips/openalpr?rev=1444377380&amp;do=diff</link>
        <description>OpenALPR

Android

reference

Requirements

android sdk

android-ndk

/etc/profile.d/sdk.sh


export NDKROOT=/lab/sdk/android-ndk-r10e
export ANDROID_HOME=/lab/sdk/android-sdk-linux
export PATH=${PATH}:${NDKROOT}:${ANDROID_HOME}/tools:${ANDROID_HOME}/platform-tools/
export ANDROID_CMAKE_TOOLCHAIN=/lab/sdk/android-cmake/android.toolchain.cmake</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/optimus?rev=1599641466&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2020-09-09T08:51:06+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>optimus</title>
        <link>https://wiki.csgalileo.org/tips/optimus?rev=1599641466&amp;do=diff</link>
        <description>Optimus Manager

enable nvidia power management:

	*  &lt;http://download.nvidia.com/XFree86/Linux-x86_64/435.17/README/dynamicpowermanagement.html&gt;
	*  &lt;https://github.com/Askannz/optimus-manager/wiki/A-guide--to-power-management-options&gt;

set startup_mode=hybrid in /etc/optimus-manager/optimus-manager.conf

switch to hybrid


optimus-manager --switch hybrid
optimus-manager --print-mode</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/pcb?rev=1620740607&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2021-05-11T13:43:27+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>pcb</title>
        <link>https://wiki.csgalileo.org/tips/pcb?rev=1620740607&amp;do=diff</link>
        <description>PCB with CNC

	* my vevor 3018 cnc

	* reference
	* fritzing
	* online jscut guide
	* online ncviewer
	* online drill to gcode converter

	* TODO online carbide3d

CNC for PCB:

	*  22000RPM
	*  V-Bit cutter 30 degree 0.2mm
	*  first pass 0.04mm
	*  second pass 0.07mm with more feed

fritzing

Make electronic schema with fritzing</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/syncthing?rev=1499762447&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-07-11T08:40:47+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>syncthing</title>
        <link>https://wiki.csgalileo.org/tips/syncthing?rev=1499762447&amp;do=diff</link>
        <description>Syncthing

Install

linux


# Add the release PGP keys:
curl -s https://syncthing.net/release-key.txt | sudo apt-key add -

# Add the &quot;release&quot; channel to your APT sources:
echo &quot;deb https://apt.syncthing.net/ syncthing release&quot; | sudo tee /etc/apt/sources.list.d/syncthing.list
sudo apt install apt-transport-https
sudo apt-get update
sudo apt install syncthing</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/vgpu?rev=1627045921&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2021-07-23T13:12:01+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>vgpu</title>
        <link>https://wiki.csgalileo.org/tips/vgpu?rev=1627045921&amp;do=diff</link>
        <description>vgpu

host

	* TESLA T4  NVIDIA Corporation TU104GL
	* you must ensure that the SR-IOV SBIOS setting is enabled on the server.

into host


sudo apt install build-essential
echo &#039;blacklist nouveau&#039; | sudo tee -a /etc/modprobe.d/blacklist.conf
sudo reboot</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/android/adb?rev=1527092889&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-05-23T16:28:09+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>adb</title>
        <link>https://wiki.csgalileo.org/tips/android/adb?rev=1527092889&amp;do=diff</link>
        <description>Android

android


apt-get install android-tools-fastboot
apt-get install android-tools-adb


network mode


adb -d tcpip 5555
adb connect &lt;ip&gt;


Packages

Install


adb install &lt;file.apk&gt;


Pull package

Getting list of packages


adb shell pm list packages</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/android/development?rev=1499534595&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-07-08T17:23:15+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>development</title>
        <link>https://wiki.csgalileo.org/tips/android/development?rev=1499534595&amp;do=diff</link>
        <description>Android development

native app

	* download android studio into /opt/android-studio
	* run /opt/android-studio/bin/studio.sh to install software
		* specify /opt/android-sdk as new SDK location



PATH=$PATH:/opt/android-sdk/platform-tools


epson moverio</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/db/oracle?rev=1488382612&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-03-01T15:36:52+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>oracle</title>
        <link>https://wiki.csgalileo.org/tips/db/oracle?rev=1488382612&amp;do=diff</link>
        <description>Oracle

Download client lib from here (Base + sqlplus + SDK). Unzip all in /opt/oracle

/etc/profile.d/oracle.sh


export ORACLE_HOME=/opt/oracle
export PATH=${PATH}:/opt/oracle
export LD_LIBRARY_PATH=/opt/oracle


/etc/ld.so.conf.d/oracle.conf


/opt/oracle</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/rasberry/linux?rev=1493805940&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-05-03T10:05:40+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>linux</title>
        <link>https://wiki.csgalileo.org/tips/rasberry/linux?rev=1493805940&amp;do=diff</link>
        <description>Linux

Base

edit /etc/locale.gen and run locale-gen


apt-get install wiringpi python-pip

# test GPIO
gpio readall


non fare con raspbian recenti


# apt install rpi-update
# rpi-update


camera


pip install &quot;picamera[array]&quot;



raspistill -tl 100 [-t 99999]</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/speech/notes?rev=1489434443&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-03-13T19:47:23+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>notes</title>
        <link>https://wiki.csgalileo.org/tips/speech/notes?rev=1489434443&amp;do=diff</link>
        <description>notes about speech recognition

	* &lt;https://www.unicom.com/blog/entry/686&gt;
	* &lt;http://cmusphinx.sourceforge.net/wiki/tutorialdict&gt;
	* &lt;http://www.speech.cs.cmu.edu/tools/lmtool-new.html&gt;
	* &lt;http://cmusphinx.sourceforge.net/wiki/tutorialam&gt;
	* &lt;https://news.ycombinator.com/item?id=11173872&gt;</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/ubuntu/xenial?rev=1501950910&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-08-05T16:35:10+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>xenial</title>
        <link>https://wiki.csgalileo.org/tips/ubuntu/xenial?rev=1501950910&amp;do=diff</link>
        <description>Xenial

bootable USB

Create usb bootable from iso


cp xenial.iso xenial-copy.iso
isohybrid xenial-copy.iso
dd if=xenial-copy.iso of=/dev/sd?


ssh

See &lt;https://www.gentoo.org/support/news-items/2015-08-13-openssh-weak-keys.html&gt;

Re-enable ssh-dss key in /etc/ssh/sshd_config


PubkeyAcceptedKeyTypes=+ssh-dss


~/.ssh/config</description>
    </item>
    <item rdf:about="https://wiki.csgalileo.org/tips/vpn/juniper?rev=1433318076&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2015-06-03T07:54:36+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>juniper</title>
        <link>https://wiki.csgalileo.org/tips/vpn/juniper?rev=1433318076&amp;do=diff</link>
        <description>Su sistemi Ubuntu-like a 64 bit
Installazione librerie necessarie


sudo apt-get install openjdk-7-jre:i386 ia32-libs libc6:i386 zlib1g:i386
libgtk2-perl libwww-perl icedtea-7-plugin


Download dello script di mad-scientist
(fonte: http:mad-scientist.us/juniper.html)</description>
    </item>
</rdf:RDF>
