diff --git a/.travis.yml b/.travis.yml
index c75c6f9..b499a59 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -26,6 +26,11 @@ services:
 - docker
 
 before_install:
+- hostname -s
+- hostname -f
+- ping -c3 `hostname -s`
+- ping -c3 `hostname -f`
+- ping -c3 localhost
 - ps ww -fHe
 - sudo service docker restart ; sleep 10  # https://github.com/travis-ci/travis-ci/issues/4778
 - docker run -d --publish=28015:28015 rethinkdb