diff --git a/.gitignore b/.gitignore
index bea015c..1b2fa0e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,6 +15,8 @@
 .glide/
 
 # custom
+.idea
+.vscode
 *.zip
 /*.conf
 /*.rule
diff --git a/README.md b/README.md
index 7fed04f..1e8d2a1 100644
--- a/README.md
+++ b/README.md
@@ -309,6 +309,5 @@ Examples:
 
 ## Links
 
-- [go-ss2](https://github.com/shadowsocks/go-shadowsocks2): ss protocol support
 - [conflag](https://github.com/nadoo/conflag): command line and config file parse support
 - [ArchLinux](https://www.archlinux.org/packages/community/x86_64/glider): a great linux distribution with glider pre-built package
diff --git a/dns/client.go b/dns/client.go
index 10f7fe3..7a97b4c 100644
--- a/dns/client.go
+++ b/dns/client.go
@@ -149,9 +149,7 @@ func (c *Client) exchange(qname string, reqBytes []byte, preferTCP bool) (server
 		defer rc.Close()
 
 		// TODO: support timeout setting for different upstream server
-		if len(servers) > 1 {
-			rc.SetDeadline(time.Now().Add(time.Duration(c.config.Timeout) * time.Second))
-		}
+		rc.SetDeadline(time.Now().Add(time.Duration(c.config.Timeout) * time.Second))
 
 		switch network {
 		case "tcp":
diff --git a/proxy/vmess/client.go b/proxy/vmess/client.go
index 9815fac..72dbd3c 100644
--- a/proxy/vmess/client.go
+++ b/proxy/vmess/client.go
@@ -208,7 +208,9 @@ func (c *Conn) DecodeRespHeader() error {
 
 	stream := cipher.NewCFBDecrypter(block, c.respBodyIV[:])
 	buf := make([]byte, 4)
-	io.ReadFull(c.Conn, buf)
+	if _, err := io.ReadFull(c.Conn, buf); err != nil {
+		return err
+	}
 	stream.XORKeyStream(buf, buf)
 
 	if buf[0] != c.reqRespV {