From 6e0354f2e36e6a8ed03c4cdfcd069a34ec564e41 Mon Sep 17 00:00:00 2001
From: jgromes <jgromes@users.noreply.github.com>
Date: Thu, 18 Jul 2019 18:05:40 +0200
Subject: [PATCH] Travis script update

---
 .travis.yml | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index a0fd7a94..77c202ac 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 env:
   global:
     # keep Arduino IDE version at 1.8.1 until https://github.com/per1234/arduino-ci-script/issues/1 is resolved
-    - ARDUINO_IDE_VERSION="1.8.1"
+    - ARDUINO_IDE_VERSION="1.8.9"
   matrix:
     - BOARD="arduino:avr:uno"
     - BOARD="arduino:avr:leonardo"
@@ -9,10 +9,17 @@ env:
 
 before_install:
   # install Arduino IDE
-  - wget http://downloads.arduino.cc/arduino-$ARDUINO_IDE_VERSION-linux64.tar.xz
+  - wget https://downloads.arduino.cc/arduino-$ARDUINO_IDE_VERSION-linux64.tar.xz
   - tar xf arduino-$ARDUINO_IDE_VERSION-linux64.tar.xz
   - mv arduino-$ARDUINO_IDE_VERSION $HOME/arduino-ide
   - export PATH=$PATH:$HOME/arduino-ide
+  # firewall Arduino IDE noise (https://github.com/per1234/arduino-ci-script/issues/1#issuecomment-504158113)
+  - sudo iptables -P INPUT DROP
+  - sudo iptables -P FORWARD DROP
+  - sudo iptables -P OUTPUT ACCEPT
+  - sudo iptables -A INPUT -i lo -j ACCEPT
+  - sudo iptables -A OUTPUT -o lo -j ACCEPT
+  - sudo iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
 
 # create directory to save the library and create symbolic link
 install: