diff --git a/tcp-client-server/tcp-client/cmd/tcp-client.go b/tcp-client-server/tcp-client/cmd/tcp-client.go
deleted file mode 100644
index 3948fac..0000000
--- a/tcp-client-server/tcp-client/cmd/tcp-client.go
+++ /dev/null
@@ -1,34 +0,0 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"log"
-	"net"
-)
-
-func main() {
-	serverHostname := flag.String("hostname", "localhost", "Server hostname or IP")
-	serverPort := flag.Int("port", 8080, "Server port to connect to")
-
-	tcpAddr, err := net.ResolveTCPAddr("tcp", fmt.Sprintf("%s:%d", *serverHostname, *serverPort))
-	if err != nil {
-		log.Fatal(err)
-	}
-	conn, err := net.DialTCP("tcp", nil, tcpAddr)
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer conn.Close()
-
-	msg := "Hello, World!\n"
-	conn.Write([]byte(msg))
-	log.Printf("Sent: %s\n", msg)
-
-	resp := make([]byte, 1024)
-	n, err := conn.Read(resp)
-	if err != nil {
-		log.Fatal(err)
-	}
-	fmt.Printf("Server response: %s\n", resp[:n])
-}
diff --git a/tcp-client-server/tcp-server/cmd/tcp-server.go b/tcp-client-server/tcp-server/cmd/tcp-server.go
deleted file mode 100644
index 6a26252..0000000
--- a/tcp-client-server/tcp-server/cmd/tcp-server.go
+++ /dev/null
@@ -1,53 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"log"
-	"net"
-	"net/textproto"
-	"time"
-)
-
-func handleConnection(conn net.Conn, id int) {
-
-	defer conn.Close()
-	reader := bufio.NewReader(conn)
-	tp := textproto.NewReader(reader)
-	log.Printf("New connection id:%d from %s \n", id, conn.RemoteAddr())
-
-	for {
-		if text, err := tp.ReadLine(); err != nil {
-			log.Printf("Connection id: %d got %s from %s closed!\n", id, err, conn.RemoteAddr())
-			return
-		} else {
-			log.Print("id: ", id, " Received: ", text)
-			// write back to client
-			date := time.Now().Format(time.RFC3339Nano)
-			if _, err := conn.Write([]byte(fmt.Sprintf("%-40s ==> SERVER ACKed!\n", date))); err != nil {
-				log.Printf("Connection id: %d write back to %s failed!\n", id, conn.RemoteAddr())
-			}
-		}
-	}
-}
-
-func main() {
-	portNum := flag.Int("port", 8080, "Port number to listen on")
-	flag.Parse()
-	l, err := net.Listen("tcp", fmt.Sprintf(":%d", *portNum))
-	if err != nil {
-		log.Fatal(err)
-	}
-	log.Printf("Listening on %d", *portNum)
-	defer l.Close()
-	for {
-		conn, err := l.Accept()
-		if err != nil {
-			log.Fatal(err)
-		}
-		file, err := conn.(*net.TCPConn).File()
-		defer file.Close()
-		go handleConnection(conn, int(file.Fd()))
-	}
-}