diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index db1edf6..1bc42c6 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -1,22 +1,25 @@
 name: Build and Test
 on: [push, pull_request]
+permissions:
+  contents: read
+
 jobs:
   build:
     name: Go CI
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: [1.16, 1.17]
+        go: ['1.19', '1.20']
     steps:
       - name: Set up Go
-        uses: actions/setup-go@331ce1d993939866bb63c32c6cbbfd48fa76fc57 #v2
+        uses: actions/setup-go@fac708d6674e30b6ba41289acaab6d4b75aa0753 #v4.0.1
         with:
           go-version: ${{ matrix.go }}
       - name: Check out source
-        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f #v2.3.4
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab #v3.5.2
       - name: Install Linters
-        run: "curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.44.0"
+        run: "curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.53.2"
       - name: Build
         run: go build ./...
       - name: Lint
-        run: golangci-lint run --disable-all --deadline=10m --enable=gofmt --enable=revive --enable=govet --enable=gosimple --enable=ineffassign
+        run: golangci-lint run
diff --git a/.golangci.yml b/.golangci.yml
new file mode 100644
index 0000000..e5a16d1
--- /dev/null
+++ b/.golangci.yml
@@ -0,0 +1,28 @@
+run:
+  deadline: 10m
+  build-tags:
+
+linters:
+  disable-all: true
+  enable:
+    - asciicheck
+    - bidichk
+    - bodyclose
+    - durationcheck
+    - errchkjson
+    - exportloopref
+    - gofmt
+    - goimports
+    - gosimple
+    - govet
+    - grouper
+    - ineffassign
+    - misspell
+    - nosprintfhostport
+    - reassign
+    - rowserrcheck
+    - tparallel
+    - typecheck
+    - unconvert
+    - unused
+    - vetshadow
diff --git a/appdata.go b/appdata.go
index 0c029f6..17f6f8e 100644
--- a/appdata.go
+++ b/appdata.go
@@ -96,11 +96,12 @@ func appDataDir(goos, appName string, roaming bool) string {
 // (%LOCALAPPDATA%) that is used by default.
 //
 // Example results:
-//  dir := AppDataDir("myapp", false)
-//   POSIX (Linux/BSD): ~/.myapp
-//   Mac OS: $HOME/Library/Application Support/Myapp
-//   Windows: %LOCALAPPDATA%\Myapp
-//   Plan 9: $home/myapp
+//
+//	dir := AppDataDir("myapp", false)
+//	 POSIX (Linux/BSD): ~/.myapp
+//	 Mac OS: $HOME/Library/Application Support/Myapp
+//	 Windows: %LOCALAPPDATA%\Myapp
+//	 Plan 9: $home/myapp
 func AppDataDir(appName string, roaming bool) string {
 	return appDataDir(runtime.GOOS, appName, roaming)
 }
diff --git a/go.mod b/go.mod
index 7578e2d..4cfcaeb 100644
--- a/go.mod
+++ b/go.mod
@@ -1,12 +1,12 @@
 module multus
 
-go 1.17
+go 1.19
 
 require (
 	github.com/jrick/ss v0.9.1
-	github.com/smtc/rsync v0.0.0-20151014010438-0a038bb0deb8
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
-	golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1
+	github.com/smtc/rsync v0.0.0-00010101000000-000000000000
+	golang.org/x/sync v0.3.0
+	golang.org/x/term v0.9.0
 	gopkg.in/yaml.v2 v2.4.0
 )
 
@@ -15,8 +15,8 @@ require (
 	github.com/dchest/blake2b v1.0.0 // indirect
 	github.com/smtc/rollsum v0.0.0-20150721100732-39e98d252100 // indirect
 	github.com/smtc/seekbuffer v0.0.0-20151009054628-711359748967 // indirect
-	golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce // indirect
-	golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 // indirect
+	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 // indirect
+	golang.org/x/sys v0.9.0 // indirect
 )
 
 replace github.com/smtc/rsync => github.com/dajohi/rsync v0.0.0-20220210212722-7c40f7496082
diff --git a/go.sum b/go.sum
index 987185b..8879f3f 100644
--- a/go.sum
+++ b/go.sum
@@ -10,22 +10,14 @@ github.com/smtc/rollsum v0.0.0-20150721100732-39e98d252100 h1:i0RlfVCicU2hdE7lSl
 github.com/smtc/rollsum v0.0.0-20150721100732-39e98d252100/go.mod h1:6sQHUq9MNR2x9+cpk8+oegntSXGnXHopnOv92j2tikk=
 github.com/smtc/seekbuffer v0.0.0-20151009054628-711359748967 h1:W1sTuG/sEqqum0BZ6bI1V++UqMJ+dxoeX7Biz7EarmE=
 github.com/smtc/seekbuffer v0.0.0-20151009054628-711359748967/go.mod h1:yaoAwyoO9sNREC+8EVI+DgdGfUpMTVR9XzqxS7yGRF4=
+golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 h1:7I4JAnoQBe7ZtJcBaYHi5UtiO8tQHbUSXxL+pnGRANg=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce h1:Roh6XWxHFKrPgC/EQhVubSAGQ6Ozk6IdxHSzt1mR0EI=
-golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
-golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 h1:SrN+KX8Art/Sf4HNj6Zcz06G7VEz+7w9tdXTPOZ7+l4=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
+golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
+golang.org/x/sys v0.9.0 h1:KS/R3tvhPqvJvwcKfnBHJwwthS11LRhmM5D59eEXa0s=
+golang.org/x/sys v0.9.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.9.0 h1:GRRCnKYhdQrD8kfRAdQ6Zcw1P0OcELxGLKJvtjVMZ28=
+golang.org/x/term v0.9.0/go.mod h1:M6DEAAIenWoTxdKrOltXcmDY3rSplQUkrvaDU5FcQyo=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
diff --git a/multus-agent/appdata.go b/multus-agent/appdata.go
index 0c029f6..17f6f8e 100644
--- a/multus-agent/appdata.go
+++ b/multus-agent/appdata.go
@@ -96,11 +96,12 @@ func appDataDir(goos, appName string, roaming bool) string {
 // (%LOCALAPPDATA%) that is used by default.
 //
 // Example results:
-//  dir := AppDataDir("myapp", false)
-//   POSIX (Linux/BSD): ~/.myapp
-//   Mac OS: $HOME/Library/Application Support/Myapp
-//   Windows: %LOCALAPPDATA%\Myapp
-//   Plan 9: $home/myapp
+//
+//	dir := AppDataDir("myapp", false)
+//	 POSIX (Linux/BSD): ~/.myapp
+//	 Mac OS: $HOME/Library/Application Support/Myapp
+//	 Windows: %LOCALAPPDATA%\Myapp
+//	 Plan 9: $home/myapp
 func AppDataDir(appName string, roaming bool) string {
 	return appDataDir(runtime.GOOS, appName, roaming)
 }
diff --git a/multus-agent/cleanup.go b/multus-agent/cleanup.go
index 862c026..43d7177 100644
--- a/multus-agent/cleanup.go
+++ b/multus-agent/cleanup.go
@@ -6,18 +6,12 @@ import (
 	"log"
 	"os"
 	"path/filepath"
-	"regexp"
 	"sort"
 	"strconv"
 	"strings"
 	"time"
 )
 
-var (
-	fileRexp = regexp.MustCompile(`\.gz\.enc$`)
-	hashRexp = regexp.MustCompile(`[[:xdigit:]]{64}`)
-)
-
 type File struct {
 	Path      string
 	Timestamp time.Time
@@ -43,23 +37,23 @@ func genTimestamp(name string) (time.Time, error) {
 		return time.Time{}, fmt.Errorf("invalid filename")
 	}
 
-	year, err := strconv.ParseInt(string(name[0:4]), 10, 64)
+	year, err := strconv.ParseInt(name[0:4], 10, 64)
 	if err != nil {
 		return time.Time{}, err
 	}
-	month, err := strconv.ParseInt(string(name[4:6]), 10, 64)
+	month, err := strconv.ParseInt(name[4:6], 10, 64)
 	if err != nil {
 		return time.Time{}, err
 	}
-	day, err := strconv.ParseInt(string(name[6:8]), 10, 64)
+	day, err := strconv.ParseInt(name[6:8], 10, 64)
 	if err != nil {
 		return time.Time{}, err
 	}
-	hour, err := strconv.ParseInt(string(name[8:10]), 10, 64)
+	hour, err := strconv.ParseInt(name[8:10], 10, 64)
 	if err != nil {
 		return time.Time{}, err
 	}
-	min, err := strconv.ParseInt(string(name[10:12]), 10, 64)
+	min, err := strconv.ParseInt(name[10:12], 10, 64)
 	if err != nil {
 		return time.Time{}, err
 	}
diff --git a/types.go b/types.go
index 1b3d525..a9fe89d 100644
--- a/types.go
+++ b/types.go
@@ -370,7 +370,7 @@ func NewMetadata(filepath string) (*Metadata, error) {
 		Mode: uint32(stat.Mode()),
 		UID:  statT.Uid,
 		GID:  statT.Gid,
-		RDev: uint64(statT.Rdev),
+		RDev: statT.Rdev,
 	}
 	MD := Metadata{
 		Attribs: fileAttributes,
diff --git a/util.go b/util.go
index 0de32b9..8fbaaae 100644
--- a/util.go
+++ b/util.go
@@ -32,6 +32,7 @@ func isSymlink(filemode os.FileMode) bool {
 	return filemode&os.ModeSymlink == os.ModeSymlink
 }
 
+/*
 func major(rdev uint64) uint64 {
 	return (rdev >> 8) & 0xff
 }
@@ -39,6 +40,7 @@ func major(rdev uint64) uint64 {
 func minor(rdev uint64) uint64 {
 	return (rdev & 0xff) | ((rdev & 0xffff0000) >> 8)
 }
+*/
 
 func signatureFromReader(dstBuf *bytes.Buffer, fd io.ReadSeeker, len int64) error {
 	// Save the current offset