diff --git a/test/distro/debian b/test/distro/debian
index ad0ec30..abbbaa2 100644
--- a/test/distro/debian
+++ b/test/distro/debian
@@ -12,7 +12,7 @@
 # Author: Stefano Brivio <sbrivio@redhat.com>
 
 temp	PIDFILE
-htools	head sed cat kill qemu-system-x86_64 qemu-system-aarch64 qemu-system-ppc64
+htools	cat kill qemu-system-x86_64 qemu-system-aarch64 qemu-system-ppc64
 
 # Quick pasta test: send message from init to ns, and from ns to init
 def	distro_quick_pasta_test
diff --git a/test/distro/fedora b/test/distro/fedora
index f225a8e..56805c5 100644
--- a/test/distro/fedora
+++ b/test/distro/fedora
@@ -12,7 +12,7 @@
 # Author: Stefano Brivio <sbrivio@redhat.com>
 
 temp	PIDFILE
-htools	head sed cat kill qemu-system-x86_64
+htools	cat kill qemu-system-x86_64
 
 # Quick pasta test: send message from init to ns, and from ns to init
 def	distro_quick_pasta_test
@@ -59,7 +59,6 @@ endef
 hostb	./passt -P __PIDFILE__ &
 sleep	1
 host	echo
-hout	DNS6 sed -n 's/^nameserver \([^:]*:\)\([^%]*\).*/\1\2/p' /etc/resolv.conf | head -1
 
 test	Fedora 26, x86_64
 
diff --git a/test/distro/ubuntu b/test/distro/ubuntu
index 3a80e37..b9a0446 100644
--- a/test/distro/ubuntu
+++ b/test/distro/ubuntu
@@ -12,7 +12,7 @@
 # Author: Stefano Brivio <sbrivio@redhat.com>
 
 temp	PIDFILE
-htools	qemu-img virt-edit guestfish head sed cat kill qemu-system-x86_64 qemu-system-ppc64 qemu-system-s390x
+htools	qemu-img virt-edit guestfish cat kill qemu-system-x86_64 qemu-system-ppc64 qemu-system-s390x
 
 # Quick pasta test: send message from init to ns, and from ns to init
 def	distro_quick_pasta_test