diff --git a/modules/api_rest.go b/modules/api_rest.go
index 28c504f7..920fd044 100644
--- a/modules/api_rest.go
+++ b/modules/api_rest.go
@@ -113,7 +113,9 @@ func (api *RestAPI) Configure() error {
 	var ip string
 	var port int
 
-	if err, ip = api.StringParam("api.rest.address"); err != nil {
+	if api.Running() {
+		return session.ErrAlreadyStarted
+	} else if err, ip = api.StringParam("api.rest.address"); err != nil {
 		return err
 	} else if err, port = api.IntParam("api.rest.port"); err != nil {
 		return err
@@ -155,9 +157,7 @@ func (api *RestAPI) Configure() error {
 }
 
 func (api *RestAPI) Start() error {
-	if api.Running() == true {
-		return session.ErrAlreadyStarted
-	} else if err := api.Configure(); err != nil {
+	if err := api.Configure(); err != nil {
 		return err
 	}
 
diff --git a/modules/ble_recon.go b/modules/ble_recon.go
index e88eaa31..2a47959f 100644
--- a/modules/ble_recon.go
+++ b/modules/ble_recon.go
@@ -111,7 +111,9 @@ func (d *BLERecon) isEnumerating() bool {
 }
 
 func (d *BLERecon) Configure() (err error) {
-	if d.gattDevice == nil {
+	if d.Running() {
+		return session.ErrAlreadyStarted
+	} else if d.gattDevice == nil {
 		log.Info("Initializing BLE device ...")
 
 		// hey Paypal GATT library, could you please just STFU?!
@@ -147,9 +149,7 @@ func (d *BLERecon) pruner() {
 }
 
 func (d *BLERecon) Start() error {
-	if d.Running() {
-		return session.ErrAlreadyStarted
-	} else if err := d.Configure(); err != nil {
+	if err := d.Configure(); err != nil {
 		return err
 	}
 
diff --git a/modules/dhcp6_spoof.go b/modules/dhcp6_spoof.go
index 960b7768..3d9438da 100644
--- a/modules/dhcp6_spoof.go
+++ b/modules/dhcp6_spoof.go
@@ -77,6 +77,10 @@ func (s DHCP6Spoofer) Author() string {
 func (s *DHCP6Spoofer) Configure() error {
 	var err error
 
+	if s.Running() {
+		return session.ErrAlreadyStarted
+	}
+
 	if s.Handle, err = pcap.OpenLive(s.Session.Interface.Name(), 65536, true, pcap.BlockForever); err != nil {
 		return err
 	}
@@ -354,9 +358,7 @@ func (s *DHCP6Spoofer) onPacket(pkt gopacket.Packet) {
 }
 
 func (s *DHCP6Spoofer) Start() error {
-	if s.Running() == true {
-		return session.ErrAlreadyStarted
-	} else if err := s.Configure(); err != nil {
+	if err := s.Configure(); err != nil {
 		return err
 	}
 
diff --git a/modules/dns_spoof.go b/modules/dns_spoof.go
index 1c2a607f..bf44c8ff 100644
--- a/modules/dns_spoof.go
+++ b/modules/dns_spoof.go
@@ -80,6 +80,10 @@ func (s *DNSSpoofer) Configure() error {
 	var err error
 	var addr string
 
+	if s.Running() {
+		return session.ErrAlreadyStarted
+	}
+
 	if s.Handle, err = pcap.OpenLive(s.Session.Interface.Name(), 65536, true, pcap.BlockForever); err != nil {
 		return err
 	}
@@ -264,9 +268,7 @@ func (s *DNSSpoofer) onPacket(pkt gopacket.Packet) {
 }
 
 func (s *DNSSpoofer) Start() error {
-	if s.Running() == true {
-		return session.ErrAlreadyStarted
-	} else if err := s.Configure(); err != nil {
+	if err := s.Configure(); err != nil {
 		return err
 	}
 
diff --git a/modules/events_stream.go b/modules/events_stream.go
index 99d009e2..fa1e9d8b 100644
--- a/modules/events_stream.go
+++ b/modules/events_stream.go
@@ -125,7 +125,6 @@ func (s *EventsStream) Configure() error {
 
 func (s *EventsStream) Start() error {
 	return s.SetRunning(true, func() {
-
 		s.eventListener = s.Session.Events.Listen()
 		for {
 			var e session.Event
diff --git a/modules/gps.go b/modules/gps.go
index 2825a1ed..e76c5ceb 100644
--- a/modules/gps.go
+++ b/modules/gps.go
@@ -71,7 +71,9 @@ func (gps *GPS) Author() string {
 }
 
 func (gps *GPS) Configure() (err error) {
-	if err, gps.serialPort = gps.StringParam("gps.device"); err != nil {
+	if gps.Running() {
+		return session.ErrAlreadyStarted
+	} else if err, gps.serialPort = gps.StringParam("gps.device"); err != nil {
 		return err
 	} else if err, gps.baudRate = gps.IntParam("gps.baudrate"); err != nil {
 		return err
@@ -117,9 +119,7 @@ func (gps *GPS) Show() error {
 }
 
 func (gps *GPS) Start() error {
-	if gps.Running() == true {
-		return session.ErrAlreadyStarted
-	} else if err := gps.Configure(); err != nil {
+	if err := gps.Configure(); err != nil {
 		return err
 	}
 
diff --git a/modules/http_proxy.go b/modules/http_proxy.go
index 670bfbe3..002a1fb8 100644
--- a/modules/http_proxy.go
+++ b/modules/http_proxy.go
@@ -67,19 +67,15 @@ func (p *HttpProxy) Configure() error {
 	var httpPort int
 	var scriptPath string
 
-	if err, address = p.StringParam("http.proxy.address"); err != nil {
+	if p.Running() == true {
+		return session.ErrAlreadyStarted
+	} else if err, address = p.StringParam("http.proxy.address"); err != nil {
 		return err
-	}
-
-	if err, proxyPort = p.IntParam("http.proxy.port"); err != nil {
+	} else if err, proxyPort = p.IntParam("http.proxy.port"); err != nil {
 		return err
-	}
-
-	if err, httpPort = p.IntParam("http.port"); err != nil {
+	} else if err, httpPort = p.IntParam("http.port"); err != nil {
 		return err
-	}
-
-	if err, scriptPath = p.StringParam("http.proxy.script"); err != nil {
+	} else if err, scriptPath = p.StringParam("http.proxy.script"); err != nil {
 		return err
 	}
 
@@ -87,9 +83,7 @@ func (p *HttpProxy) Configure() error {
 }
 
 func (p *HttpProxy) Start() error {
-	if p.Running() == true {
-		return session.ErrAlreadyStarted
-	} else if err := p.Configure(); err != nil {
+	if err := p.Configure(); err != nil {
 		return err
 	}
 
diff --git a/modules/http_server.go b/modules/http_server.go
index 30c00d50..1180cbd3 100644
--- a/modules/http_server.go
+++ b/modules/http_server.go
@@ -89,6 +89,10 @@ func (httpd *HttpServer) Configure() error {
 	var certFile string
 	var keyFile string
 
+	if httpd.Running() == true {
+		return session.ErrAlreadyStarted
+	}
+
 	if err, path = httpd.StringParam("http.server.path"); err != nil {
 		return err
 	}
@@ -145,9 +149,7 @@ func (httpd *HttpServer) Configure() error {
 }
 
 func (httpd *HttpServer) Start() error {
-	if httpd.Running() == true {
-		return session.ErrAlreadyStarted
-	} else if err := httpd.Configure(); err != nil {
+	if err := httpd.Configure(); err != nil {
 		return err
 	}
 
diff --git a/modules/https_proxy.go b/modules/https_proxy.go
index 8328c161..daea7a2f 100644
--- a/modules/https_proxy.go
+++ b/modules/https_proxy.go
@@ -82,6 +82,10 @@ func (p *HttpsProxy) Configure() error {
 	var certFile string
 	var keyFile string
 
+	if p.Running() == true {
+		return session.ErrAlreadyStarted
+	}
+
 	if err, address = p.StringParam("https.proxy.address"); err != nil {
 		return err
 	}
@@ -125,9 +129,7 @@ func (p *HttpsProxy) Configure() error {
 }
 
 func (p *HttpsProxy) Start() error {
-	if p.Running() == true {
-		return session.ErrAlreadyStarted
-	} else if err := p.Configure(); err != nil {
+	if err := p.Configure(); err != nil {
 		return err
 	}
 
diff --git a/modules/net_sniff.go b/modules/net_sniff.go
index a0cd418c..67749267 100644
--- a/modules/net_sniff.go
+++ b/modules/net_sniff.go
@@ -125,7 +125,9 @@ func (s *Sniffer) onPacketMatched(pkt gopacket.Packet) {
 func (s *Sniffer) Configure() error {
 	var err error
 
-	if err, s.Ctx = s.GetContext(); err != nil {
+	if s.Running() == true {
+		return session.ErrAlreadyStarted
+	} else if err, s.Ctx = s.GetContext(); err != nil {
 		if s.Ctx != nil {
 			s.Ctx.Close()
 			s.Ctx = nil
@@ -137,9 +139,7 @@ func (s *Sniffer) Configure() error {
 }
 
 func (s *Sniffer) Start() error {
-	if s.Running() == true {
-		return session.ErrAlreadyStarted
-	} else if err := s.Configure(); err != nil {
+	if err := s.Configure(); err != nil {
 		return err
 	}
 
diff --git a/modules/tcp_proxy.go b/modules/tcp_proxy.go
index 7b032155..48ab90f7 100644
--- a/modules/tcp_proxy.go
+++ b/modules/tcp_proxy.go
@@ -83,7 +83,9 @@ func (p *TcpProxy) Configure() error {
 	var proxyAddress string
 	var scriptPath string
 
-	if err, address = p.StringParam("tcp.address"); err != nil {
+	if p.Running() == true {
+		return session.ErrAlreadyStarted
+	} else if err, address = p.StringParam("tcp.address"); err != nil {
 		return err
 	} else if err, proxyAddress = p.StringParam("tcp.proxy.address"); err != nil {
 		return err
@@ -190,9 +192,7 @@ func (p *TcpProxy) handleConnection(c *net.TCPConn) {
 }
 
 func (p *TcpProxy) Start() error {
-	if p.Running() == true {
-		return session.ErrAlreadyStarted
-	} else if err := p.Configure(); err != nil {
+	if err := p.Configure(); err != nil {
 		return err
 	}
 
diff --git a/modules/ticker.go b/modules/ticker.go
index 3ec65ecc..8b312ef3 100644
--- a/modules/ticker.go
+++ b/modules/ticker.go
@@ -59,7 +59,9 @@ func (t *Ticker) Configure() error {
 	var commands string
 	var period int
 
-	if err, commands = t.StringParam("ticker.commands"); err != nil {
+	if t.Running() == true {
+		return session.ErrAlreadyStarted
+	} else if err, commands = t.StringParam("ticker.commands"); err != nil {
 		return err
 	} else if err, period = t.IntParam("ticker.period"); err != nil {
 		return err
@@ -72,9 +74,7 @@ func (t *Ticker) Configure() error {
 }
 
 func (t *Ticker) Start() error {
-	if t.Running() == true {
-		return session.ErrAlreadyStarted
-	} else if err := t.Configure(); err != nil {
+	if err := t.Configure(); err != nil {
 		return err
 	}
 
diff --git a/modules/wifi_recon.go b/modules/wifi_recon.go
index 516a6121..9b7d62dd 100644
--- a/modules/wifi_recon.go
+++ b/modules/wifi_recon.go
@@ -594,9 +594,7 @@ func (w *WiFiRecon) trackPacket(pkt gopacket.Packet) {
 }
 
 func (w *WiFiRecon) Start() error {
-	if w.Running() == true {
-		return session.ErrAlreadyStarted
-	} else if err := w.Configure(); err != nil {
+	if err := w.Configure(); err != nil {
 		return err
 	}