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+#!/bin/bash
+# script for installing a Debian Edu Workstation with ITZkS modifications
+
+set -e
+
+
+# Install libpacparser1
+apt-get install libpacparser1
+
+
+# Write new content for /usr/share/debian-edu-config/tools/wpad-extract.
+# Workaround for Debian bug #888829. Probably fixed with debian-edu-config 1.929+deb9u1.
+
+cat <<EOT > /usr/share/debian-edu-config/tools/wpad-extract
+#!/bin/bash
+#
+# Detect proxy URL via WPAD
+#
+# Author: Wolfgang Schweer
+# License: GNU General Public License v2 or later
+
+# This version uses pactester from package libpacparser1.
+
+# Look up one of the www.debian.org IP addresses to avoid hanging on
+# DNS if the skolelinux machines are not connected to the Internet.
+proxy_url=\$(curl -s http://wpad/wpad.dat | pactester -p - \\
+ -u http://130.89.148.14 | awk '{print \$2}' | cut -d';' -f1)
+echo http_proxy=http://\$proxy_url
+EOT
+
+# Run /usr/share/debian-edu-config/tools/update-proxy-from-wpad
+/usr/share/debian-edu-config/tools/update-proxy-from-wpad
+