diff --git a/.gitignore b/.gitignore
index 356b672a7..10edb0ef7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,7 +7,6 @@
 /release
 /machine*
 /bin
-.Dockerfile-test
 .vagrant
 *.etcd
 *.log
@@ -15,9 +14,6 @@
 *.swp
 /hack/insta-discovery/.env
 *.test
-tools/functional-tester/docker/bin
-hack/scripts-dev/docker-dns/.Dockerfile
-hack/scripts-dev/docker-dns-srv/.Dockerfile
 hack/tls-setup/certs
 .idea
 
@@ -38,3 +34,4 @@ vendor/**/*
 !vendor/**/LICENSE*
 vendor/**/*_test.go
 
+*.bak