telnet -> alpine base

doctor -> Alpine base

telnet/Dockerfile

@@ -1,9 +1,9 @@
-FROM debian:jessie
+# command to run Telnet
+# docker run -it --rm \
+#	--log-driver none \
+#	jess/telnet "$@"
+#
+FROM alpine:latest
 MAINTAINER Jessica Frazelle <jess@docker.com>
 
-RUN apt-get update && apt-get install -y \
-	telnet \
-	--no-install-recommends \
-	&& rm -rf /var/lib/apt/lists/*
-
 ENTRYPOINT [ "telnet" ]