diff --git a/config.go b/config.go
index 8cb8b3f..b89f78a 100644
--- a/config.go
+++ b/config.go
@@ -15,6 +15,7 @@ type TTYShareConfig struct {
 	LogFileName    string `json:"logFileName"`
 	UseTLS         bool   `json:"useTLS"`
 	Server         string `json:"server"`
+	ReadOnly       bool   `json:"readonly"`
 	configFileName string
 	commandName    string
 	commandArgs    string
@@ -36,6 +37,7 @@ func (conf *TTYShareConfig) Load() {
 	flag.StringVar(&config.LogFileName, "logfile", config.LogFileName, "The name of the file to log")
 	flag.BoolVar(&config.UseTLS, "useTLS", config.UseTLS, "Use TLS to connect to the server")
 	flag.StringVar(&config.Server, "server", config.Server, "tty-server address")
+	flag.BoolVar(&config.ReadOnly, "readOnly", config.ReadOnly, "Share as a read only")
 	flag.Parse()
 
 	if conf.versionFlag {
diff --git a/main.go b/main.go
index 2a88ea3..2bab6b7 100644
--- a/main.go
+++ b/main.go
@@ -18,6 +18,7 @@ var version string = "0.0.0"
 var config = TTYShareConfig{ // default configuration options
 	LogFileName: "-",
 	Server:      "go.tty-share.com:7654",
+	ReadOnly:    false,
 	UseTLS:      false,
 }
 
@@ -108,7 +109,7 @@ func main() {
 				break
 			}
 
-			if msg.Type == MsgIDWrite {
+			if (msg.Type == MsgIDWrite) && !config.ReadOnly {
 				var msgWrite MsgTTYWrite
 				json.Unmarshal(msg.Data, &msgWrite)
 				ptyMaster.Write(msgWrite.Data[:msgWrite.Size])