diff --git a/cmd/web/main.go b/cmd/dashboard/main.go
similarity index 100%
rename from cmd/web/main.go
rename to cmd/dashboard/main.go
diff --git a/cmd/ping/main.go b/cmd/ping/main.go
deleted file mode 100644
index 9181662..0000000
--- a/cmd/ping/main.go
+++ /dev/null
@@ -1,18 +0,0 @@
-package main
-
-import (
-	"log"
-	"os/exec"
-)
-
-func main() {
-	cmd := exec.Command("ping", "qiongbi.net", "-c5")
-	output, err := cmd.Output()
-	log.Println("output:", string(output))
-	log.Println("err:", err)
-
-	cmd = exec.Command("ping", "qiongbi", "-c5")
-	output, err = cmd.Output()
-	log.Println("output:", string(output))
-	log.Println("err:", err)
-}
diff --git a/cmd/playground/main.go b/cmd/playground/main.go
new file mode 100644
index 0000000..11faae4
--- /dev/null
+++ b/cmd/playground/main.go
@@ -0,0 +1,63 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os/exec"
+	"strconv"
+	"time"
+
+	"github.com/shirou/gopsutil/cpu"
+	"github.com/shirou/gopsutil/disk"
+	"github.com/shirou/gopsutil/host"
+	"github.com/shirou/gopsutil/mem"
+	"github.com/shirou/gopsutil/net"
+)
+
+func main() {
+	// Host info
+	hi, _ := host.Info()
+	fmt.Printf("「HostInfo」 platform:%v platformVersion:%v kernelArch:%v virtualizationSystem:%v\n", hi.OS, hi.PlatformVersion, hi.KernelArch, hi.VirtualizationSystem)
+	// Memory
+	mv, _ := mem.VirtualMemory()
+	ms, _ := mem.SwapMemory()
+	fmt.Printf("「VirtualMemory」 Total: %v, Free:%v, UsedPercent:%f%%\n", mv.Total, mv.Free, mv.UsedPercent)
+	fmt.Printf("「SwapMemory」 Total: %v, Free:%v, UsedPercent:%f%%\n", ms.Total, ms.Free, ms.UsedPercent)
+	// Disk
+	dparts, _ := disk.Partitions(false)
+	for _, part := range dparts {
+		fmt.Printf("「Disk」 %v\n", part)
+		u, _ := disk.Usage(part.Mountpoint)
+		fmt.Println("\t" + u.Path + "\t" + strconv.FormatFloat(u.UsedPercent, 'f', 2, 64) + "% full.")
+		fmt.Println("\t\tTotal: " + strconv.FormatUint(u.Total/1024/1024/1024, 10) + " GiB")
+		fmt.Println("\t\tFree:  " + strconv.FormatUint(u.Free/1024/1024/1024, 10) + " GiB")
+		fmt.Println("\t\tUsed:  " + strconv.FormatUint(u.Used/1024/1024/1024, 10) + " GiB")
+	}
+	// CPU
+	go func() {
+		cp, _ := cpu.Percent(time.Second*2, false)
+		ci, _ := cpu.Info()
+		for i := 0; i < len(ci); i++ {
+			fmt.Printf("「CPU」 %v core:%v step:%v", ci[i].ModelName, ci[i].Cores, ci[i].Stepping)
+		}
+		fmt.Printf(" percentIn2sec:%v%%\n", cp[0])
+	}()
+	// Network
+	nc, _ := net.IOCounters(true)
+	for _, ni := range nc {
+		fmt.Printf("「Net」%v\n", ni)
+	}
+	select {}
+}
+
+func cmdExec() {
+	cmd := exec.Command("ping", "qiongbi.net", "-c2")
+	output, err := cmd.Output()
+	log.Println("output:", string(output))
+	log.Println("err:", err)
+
+	cmd = exec.Command("ping", "qiongbi", "-c2")
+	output, err = cmd.Output()
+	log.Println("output:", string(output))
+	log.Println("err:", err)
+}
diff --git a/go.mod b/go.mod
index bc6360f..0661305 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,8 @@
-module github.com/naiba/nbackup
+module github.com/p14yground/nezha
 
 go 1.13
+
+require (
+	github.com/shirou/gopsutil v2.19.11+incompatible
+	golang.org/x/sys v0.0.0-20191128015809-6d18c012aee9 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..0e2f3f4
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,5 @@
+github.com/naiba/nbackup v0.0.0-20191201153623-141141b3f112 h1:qC+LR6aVs9ezpNvnGIZz/sqghFTiBG1JczlUliDJYvQ=
+github.com/shirou/gopsutil v2.19.11+incompatible h1:lJHR0foqAjI4exXqWsU3DbH7bX1xvdhGdnXTIARA9W4=
+github.com/shirou/gopsutil v2.19.11+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
+golang.org/x/sys v0.0.0-20191128015809-6d18c012aee9 h1:ZBzSG/7F4eNKz2L3GE9o300RX0Az1Bw5HF7PDraD+qU=
+golang.org/x/sys v0.0.0-20191128015809-6d18c012aee9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=