diff --git a/go.mod b/go.mod
index dc58746..ec152c0 100644
--- a/go.mod
+++ b/go.mod
@@ -3,13 +3,15 @@ module github.com/fangdingjun/gdns
 go 1.13
 
 require (
-	github.com/fangdingjun/go-log v4.0.0+incompatible
-	github.com/fangdingjun/protolistener v0.0.0-20190413090244-355464816fc0
+	github.com/fangdingjun/go-log v4.0.2+incompatible
+	github.com/fangdingjun/protolistener v0.0.0-20190415072226-223d4e06b774
 	github.com/go-yaml/yaml v2.1.0+incompatible
 	github.com/kr/pretty v0.1.0 // indirect
+	github.com/kr/pty v1.1.4 // indirect
 	github.com/miekg/dns v1.1.8
 	golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3
-	golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6 // indirect
+	golang.org/x/sync v0.0.0-20190412183630-56d357773e84 // indirect
+	golang.org/x/sys v0.0.0-20190415081028-16da32be82c5 // indirect
 	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
 	gopkg.in/yaml.v2 v2.2.2 // indirect
 )
diff --git a/go.sum b/go.sum
index 5bcc31f..fb9d0aa 100644
--- a/go.sum
+++ b/go.sum
@@ -1,12 +1,17 @@
 github.com/fangdingjun/go-log v4.0.0+incompatible h1:h/3S0FRNiFR1A5xkK/ECHtmc2O/DVESKCzjhpgzszfA=
 github.com/fangdingjun/go-log v4.0.0+incompatible/go.mod h1:Y6ko/KySCpIcAX3mrfiUJtuPY2saPwofv9WYcUatPJY=
+github.com/fangdingjun/go-log v4.0.2+incompatible h1:nUSCJTxuGP8493r8GtGQ2xyWw6/DzuAzDBg1opfSKT8=
+github.com/fangdingjun/go-log v4.0.2+incompatible/go.mod h1:Y6ko/KySCpIcAX3mrfiUJtuPY2saPwofv9WYcUatPJY=
 github.com/fangdingjun/protolistener v0.0.0-20190413090244-355464816fc0 h1:dafx8KP2yvsX8oAFwJ6Bx54h3YE2P7UXLB453z7LbPo=
 github.com/fangdingjun/protolistener v0.0.0-20190413090244-355464816fc0/go.mod h1:bp6oYi3nsUwqGyzikoHJ672i9vX39Qp1h1C/r/vkIIg=
+github.com/fangdingjun/protolistener v0.0.0-20190415072226-223d4e06b774 h1:6w2gWbyt7GEOP7fKhnkkNPvgx7t5l5QIWWtVMnSY+ek=
+github.com/fangdingjun/protolistener v0.0.0-20190415072226-223d4e06b774/go.mod h1:eVOT1s9kw8XsWs6GSG7cGuyeQGb3SqejEPD9slyHN4E=
 github.com/go-yaml/yaml v2.1.0+incompatible h1:RYi2hDdss1u4YE7GwixGzWwVo47T8UQwnTLB6vQiq+o=
 github.com/go-yaml/yaml v2.1.0+incompatible/go.mod h1:w2MrLa16VYP0jy6N7M5kHaCkaLENm+P+Tv+MfurjSw0=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/pty v1.1.4/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/miekg/dns v1.1.8 h1:1QYRAKU3lN5cRfLCkPU08hwvLJFhvjP6MqNMmQz6ZVI=
@@ -15,12 +20,18 @@ github.com/pires/go-proxyproto v0.0.0-20190111085350-4d51b51e3bfc h1:lNOt1SMsgHX
 github.com/pires/go-proxyproto v0.0.0-20190111085350-4d51b51e3bfc/go.mod h1:6/gX3+E/IYGa0wMORlSMla999awQFdbaeQCHjSMKIzY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a h1:Igim7XhdOpBnWPuYJ70XcNpq8q3BCACtVgNfoJxOV7g=
+golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3 h1:0GoQqolDA55aaLxZyTzK/Y2ePZzZTUrRacwib7cNsYQ=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6 h1:bjcUS9ztw9kFmmIxJInhon/0Is3p+EHBKNgquIzo1OI=
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190412183630-56d357773e84/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a h1:1BGLXjeY4akVXGgbC9HugT3Jv3hCI0z56oJR5vAMgBU=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190415081028-16da32be82c5 h1:UMbOtg4ZL2GyTAolLE9QfNvzskWvFkI935Z98i9moXA=
+golang.org/x/sys v0.0.0-20190415081028-16da32be82c5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=