diff --git a/Cargo.lock b/Cargo.lock
index c7bca01..604facc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "aho-corasick"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43f6cb1bf222025340178f382c426f13757b2960e89779dfcb319c32542a5a41"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "android_system_properties"
 version = "0.1.5"
@@ -11,18 +20,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "anyhow"
-version = "1.0.68"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2cb2f989d18dd141ab8ae82f64d1a8cdd37e0840f73a406896cf5e99502fab61"
-
-[[package]]
-name = "arc-swap"
-version = "1.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bddcadddf5e9015d310179a59bb28c4d4b9920ad0f11e8e14dbadf654890c9a6"
-
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -31,9 +28,9 @@ checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
 name = "bitflags"
-version = "1.3.2"
+version = "2.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+checksum = "630be753d4e58660abd17930c71b647fe46c27ea6b63cc59e1e3851406972e42"
 
 [[package]]
 name = "bumpalo"
@@ -60,11 +57,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "16b0a3d9ed01224b22057780a37bb8c5dbfe1be8ba48678e7bf57ec4b385411f"
 dependencies = [
  "iana-time-zone",
- "js-sys",
  "num-integer",
  "num-traits",
- "time",
- "wasm-bindgen",
  "winapi",
 ]
 
@@ -129,47 +123,61 @@ dependencies = [
 ]
 
 [[package]]
-name = "derivative"
-version = "2.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcc3dd5e9e9c0b295d6e1e4d811fb6f157d5ffd784b8d202fc62eac8035a770b"
+name = "dnat"
+version = "0.2.0"
 dependencies = [
- "proc-macro2",
- "quote",
- "syn",
+ "flexi_logger",
+ "log",
 ]
 
 [[package]]
-name = "destructure_traitobject"
-version = "0.2.0"
+name = "errno"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c877555693c14d2f84191cfd3ad8582790fc52b5e2274b40b59cf5f5cea25c7"
+checksum = "4bcfec3a70f97c962c307b2d2c56e358cf1d00b558d74262b5f929ee8cc7e73a"
+dependencies = [
+ "errno-dragonfly",
+ "libc",
+ "windows-sys 0.48.0",
+]
 
 [[package]]
-name = "dnat"
-version = "0.2.0"
+name = "errno-dragonfly"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
 dependencies = [
- "log",
- "log4rs",
+ "cc",
+ "libc",
 ]
 
 [[package]]
-name = "fnv"
-version = "1.0.7"
+name = "flexi_logger"
+version = "0.25.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
+checksum = "37e7b68b1f7ce9c62856598e99cd6742b9cedb6186b47aa989a82640f20bfa9b"
+dependencies = [
+ "chrono",
+ "glob",
+ "is-terminal",
+ "lazy_static",
+ "log",
+ "nu-ansi-term",
+ "regex",
+ "thiserror",
+]
 
 [[package]]
-name = "hashbrown"
-version = "0.12.3"
+name = "glob"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
+checksum = "d2fabcfbdc87f4758337ca535fb41a6d701b65693ce38287d856d1674551ec9b"
 
 [[package]]
-name = "humantime"
-version = "2.1.0"
+name = "hermit-abi"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
+checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
 
 [[package]]
 name = "iana-time-zone"
@@ -196,21 +204,16 @@ dependencies = [
 ]
 
 [[package]]
-name = "indexmap"
-version = "1.9.2"
+name = "is-terminal"
+version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1885e79c1fc4b10f0e172c475f458b7f7b93061064d98c3293e98c5ba0c8b399"
+checksum = "24fddda5af7e54bf7da53067d6e802dbcc381d0a8eef629df528e3ebf68755cb"
 dependencies = [
- "autocfg",
- "hashbrown",
+ "hermit-abi",
+ "rustix",
+ "windows-sys 0.48.0",
 ]
 
-[[package]]
-name = "itoa"
-version = "1.0.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fad582f4b9e86b6caa621cabeb0963332d92eea04729ab12892c2533951e6440"
-
 [[package]]
 name = "js-sys"
 version = "0.3.60"
@@ -220,11 +223,17 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "lazy_static"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+
 [[package]]
 name = "libc"
-version = "0.2.139"
+version = "0.2.147"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
+checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3"
 
 [[package]]
 name = "link-cplusplus"
@@ -236,20 +245,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "linked-hash-map"
-version = "0.5.6"
+name = "linux-raw-sys"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
-
-[[package]]
-name = "lock_api"
-version = "0.4.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "435011366fe56583b16cf956f9df0095b405b82d76425bc8981c0e22e60ec4df"
-dependencies = [
- "autocfg",
- "scopeguard",
-]
+checksum = "09fc20d2ca12cb9f044c93e3bd6d32d523e6e2ec3db4f7b2939cd99026ecd3f0"
 
 [[package]]
 name = "log"
@@ -258,39 +257,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
  "cfg-if",
- "serde",
 ]
 
 [[package]]
-name = "log-mdc"
-version = "0.1.0"
+name = "memchr"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a94d21414c1f4a51209ad204c1776a3d0765002c76c6abcb602a6f09f1e881c7"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
-name = "log4rs"
-version = "1.2.0"
+name = "nu-ansi-term"
+version = "0.47.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d36ca1786d9e79b8193a68d480a0907b612f109537115c6ff655a3a1967533fd"
+checksum = "1df031e117bca634c262e9bd3173776844b6c17a90b3741c9163663b4385af76"
 dependencies = [
- "anyhow",
- "arc-swap",
- "chrono",
- "derivative",
- "fnv",
- "humantime",
- "libc",
- "log",
- "log-mdc",
- "parking_lot",
- "serde",
- "serde-value",
- "serde_json",
- "serde_yaml",
- "thiserror",
- "thread-id",
- "typemap-ors",
- "winapi",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
@@ -318,38 +299,6 @@ version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6f61fba1741ea2b3d6a1e3178721804bb716a68a6aeba1149b5d52e3d464ea66"
 
-[[package]]
-name = "ordered-float"
-version = "2.10.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7940cf2ca942593318d07fcf2596cdca60a85c9e7fab408a5e21a4f9dcd40d87"
-dependencies = [
- "num-traits",
-]
-
-[[package]]
-name = "parking_lot"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
-dependencies = [
- "lock_api",
- "parking_lot_core",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.9.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba1ef8814b5c993410bb3adfad7a5ed269563e4a2f90c41f5d85be7fb47133bf"
-dependencies = [
- "cfg-if",
- "libc",
- "redox_syscall",
- "smallvec",
- "windows-sys",
-]
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.50"
@@ -369,25 +318,34 @@ dependencies = [
 ]
 
 [[package]]
-name = "redox_syscall"
-version = "0.2.16"
+name = "regex"
+version = "1.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
+checksum = "d0ab3ca65655bb1e41f2a8c8cd662eb4fb035e67c3f78da1d61dffe89d07300f"
 dependencies = [
- "bitflags",
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
 ]
 
 [[package]]
-name = "ryu"
-version = "1.0.12"
+name = "regex-syntax"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b4b9743ed687d4b4bcedf9ff5eaa7398495ae14e61cba0a295704edbc7decde"
+checksum = "436b050e76ed2903236f032a59761c1eb99e1b0aead2c257922771dab1fc8c78"
 
 [[package]]
-name = "scopeguard"
-version = "1.1.0"
+name = "rustix"
+version = "0.38.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
+checksum = "aabcb0461ebd01d6b79945797c27f8529082226cb630a9865a71870ff63532a4"
+dependencies = [
+ "bitflags",
+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.48.0",
+]
 
 [[package]]
 name = "scratch"
@@ -395,65 +353,6 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ddccb15bcce173023b3fedd9436f882a0739b8dfb45e4f6b6002bee5929f61b2"
 
-[[package]]
-name = "serde"
-version = "1.0.152"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb7d1f0d3021d347a83e556fc4683dea2ea09d87bccdf88ff5c12545d89d5efb"
-dependencies = [
- "serde_derive",
-]
-
-[[package]]
-name = "serde-value"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3a1a3341211875ef120e117ea7fd5228530ae7e7036a779fdc9117be6b3282c"
-dependencies = [
- "ordered-float",
- "serde",
-]
-
-[[package]]
-name = "serde_derive"
-version = "1.0.152"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af487d118eecd09402d70a5d72551860e788df87b464af30e5ea6a38c75c541e"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "serde_json"
-version = "1.0.91"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "877c235533714907a8c2464236f5c4b2a17262ef1bd71f38f35ea592c8da6883"
-dependencies = [
- "itoa",
- "ryu",
- "serde",
-]
-
-[[package]]
-name = "serde_yaml"
-version = "0.8.26"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "578a7433b776b56a35785ed5ce9a7e777ac0598aac5a6dd1b4b18a307c7fc71b"
-dependencies = [
- "indexmap",
- "ryu",
- "serde",
- "yaml-rust",
-]
-
-[[package]]
-name = "smallvec"
-version = "1.10.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
-
 [[package]]
 name = "syn"
 version = "1.0.107"
@@ -494,37 +393,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "thread-id"
-version = "4.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fdfe0627923f7411a43ec9ec9c39c3a9b4151be313e0922042581fb6c9b717f"
-dependencies = [
- "libc",
- "redox_syscall",
- "winapi",
-]
-
-[[package]]
-name = "time"
-version = "0.1.45"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b797afad3f312d1c66a56d11d0316f916356d11bd158fbc6ca6389ff6bf805a"
-dependencies = [
- "libc",
- "wasi",
- "winapi",
-]
-
-[[package]]
-name = "typemap-ors"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a68c24b707f02dd18f1e4ccceb9d49f2058c2fb86384ef9972592904d7a28867"
-dependencies = [
- "unsafe-any-ors",
-]
-
 [[package]]
 name = "unicode-ident"
 version = "1.0.6"
@@ -537,21 +405,6 @@ version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
 
-[[package]]
-name = "unsafe-any-ors"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0a303d30665362d9680d7d91d78b23f5f899504d4f08b3c4cf08d055d87c0ad"
-dependencies = [
- "destructure_traitobject",
-]
-
-[[package]]
-name = "wasi"
-version = "0.10.0+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
-
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.83"
@@ -639,66 +492,132 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
 name = "windows-sys"
-version = "0.42.0"
+version = "0.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
+dependencies = [
+ "windows-targets 0.42.2",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows-targets 0.48.1",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
+dependencies = [
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.0",
+ "windows_aarch64_msvc 0.48.0",
+ "windows_i686_gnu 0.48.0",
+ "windows_i686_msvc 0.48.0",
+ "windows_x86_64_gnu 0.48.0",
+ "windows_x86_64_gnullvm 0.48.0",
+ "windows_x86_64_msvc 0.48.0",
 ]
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.42.1"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c9864e83243fdec7fc9c5444389dcbbfd258f745e7853198f365e3c4968a608"
+checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.42.1"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c8b1b673ffc16c47a9ff48570a9d85e25d265735c503681332589af6253c6c7"
+checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.42.1"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de3887528ad530ba7bdbb1faa8275ec7a1155a45ffa57c37993960277145d640"
+checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.42.1"
+version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf4d1122317eddd6ff351aa852118a2418ad4214e6613a50e0191f7004372605"
+checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.42.1"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1040f221285e17ebccbc2591ffdc2d44ee1f9186324dd3e84e99ac68d699c45"
+checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.42.1"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "628bfdf232daa22b0d64fdb62b09fcc36bb01f05a3939e20ab73aaf9470d0463"
+checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.42.1"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd"
+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
 
 [[package]]
-name = "yaml-rust"
-version = "0.4.5"
+name = "windows_x86_64_msvc"
+version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56c1936c4cc7a1c9ab21a1ebb602eb942ba868cbd44a99cb7cdc5892335e1c85"
-dependencies = [
- "linked-hash-map",
-]
+checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
diff --git a/Cargo.toml b/Cargo.toml
index a3e6b3a..d090fcf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,4 +8,4 @@ edition = "2018"
 
 [dependencies]
 log = "0.4.17"
-log4rs = "1.2.0"
+flexi_logger = "0.25.5"
diff --git a/src/config.rs b/src/config.rs
index a6be87e..2def36f 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -73,14 +73,14 @@ impl NatCell {
             NatCell::RANGE { dst_domain, .. } => dst_domain
         };
         let dst_ip = match ip::remote_ip(dst_domain) {
-            Some(s) => s,
-            None => return "".to_string(),
+            Ok(s) => s,
+            Err(_) => return "".to_string(),
         };
         // 从环境变量读取本机ip或自动探测
         let local_ip = env::var("nat_local_ip").unwrap_or(
             match ip::local_ip() {
-                Some(s) => s,
-                None => return "".to_string(),
+                Ok(s) => s,
+                Err(_) => return "".to_string(),
             });
 
         match &self {
@@ -116,14 +116,14 @@ impl NatCell {
         match &self {
             NatCell::RANGE { port_start, port_end, dst_domain: remote_domain, protocol } =>
                 (remote_domain.clone(), match ip::remote_ip(remote_domain) {
-                    Some(s) => s,
-                    None => "".to_string()
+                    Ok(s) => s,
+                    Err(_) => "".to_string()
                 })
             ,
             NatCell::SINGLE { src_port: local_port, dst_port: remote_port, dst_domain: remote_domain, protocol } =>
                 (remote_domain.clone(), match ip::remote_ip(remote_domain) {
-                    Some(s) => s,
-                    None => "".to_string()
+                    Ok(s) => s,
+                    Err(_) => "".to_string()
                 })
         }
     }
diff --git a/src/ip.rs b/src/ip.rs
index 84989a2..9c3440c 100644
--- a/src/ip.rs
+++ b/src/ip.rs
@@ -1,36 +1,15 @@
+use std::io;
 use std::net::UdpSocket;
 use std::ops::Add;
 
-pub fn local_ip() -> Option<String> {
-    let socket = match UdpSocket::bind("0.0.0.0:0") {
-        Ok(s) => s,
-        Err(_) => return None,
-    };
-
-    match socket.connect("8.8.8.8:80") {
-        Ok(()) => (),
-        Err(_) => return None,
-    };
-
-    match socket.local_addr() {
-        Ok(addr) => return Some(addr.ip().to_string()),
-        Err(_) => return None,
-    };
+pub fn local_ip() -> io::Result<String> {
+    let socket = UdpSocket::bind("0.0.0.0:0")?;
+    socket.connect("8.8.8.8:80")?;
+    return socket.local_addr().map(|local_addr| local_addr.ip().to_string());
 }
 
-pub fn remote_ip(domain:&String) -> Option<String> {
-    let socket = match UdpSocket::bind("0.0.0.0:0") {
-        Ok(s) => s,
-        Err(_) => return None,
-    };
-
-    match socket.connect(domain.to_string().add(":80")) {
-        Ok(()) => (),
-        Err(_) => return None,
-    };
-
-    match socket.peer_addr() {
-        Ok(addr) => return Some(addr.ip().to_string()),
-        Err(_) => return None,
-    };
+pub fn remote_ip(domain: &String) -> io::Result<String> {
+    let socket = UdpSocket::bind("0.0.0.0:0")?;
+    socket.connect(domain.to_string().add(":80"))?;
+    return socket.peer_addr().map(|addr| addr.ip().to_string());
 }
\ No newline at end of file
diff --git a/src/logx.rs b/src/logx.rs
index a4ab738..8a5c180 100644
--- a/src/logx.rs
+++ b/src/logx.rs
@@ -1,24 +1,38 @@
-use log::LevelFilter;
-use log4rs::append::console::ConsoleAppender;
-use log4rs::append::file::FileAppender;
-use log4rs::encode::pattern::PatternEncoder;
-use log4rs::config::{Appender, Config, Logger, Root};
+use flexi_logger::{Duplicate, Criterion, Naming, Cleanup, Logger, FileSpec, DeferredNow};
+use log::Record;
 
-pub fn init_log(logPath:&str) {
-    let stdout = ConsoleAppender::builder()
-        .encoder(Box::new(PatternEncoder::new("{d} - {l} -{t} - {m}{n}")))
-        .build();
-
-    let file = FileAppender::builder()
-        .encoder(Box::new(PatternEncoder::new("{d} - {l} - {t} - {m}{n}")))
-        .build(logPath)
-        .unwrap();
-
-    let config = Config::builder()
-        .appender(Appender::builder().build("stdout", Box::new(stdout)))
-        .appender(Appender::builder().build("file", Box::new(file)))
-        .build(Root::builder().appender("stdout").appender("file").build(LevelFilter::Info))
+pub fn init_log(log_dir: &str, log_file: &str) {
+    Logger::try_with_env_or_str("info").unwrap()
+        .log_to_file(FileSpec::default()
+            .directory(log_dir)
+            .basename(log_file)
+            .suffix(""))
+        .duplicate_to_stdout(Duplicate::All)
+        .rotate(
+            Criterion::Size(10_000_000), // 例如, 每 10MB 切割
+            Naming::Timestamps,
+            Cleanup::KeepLogFiles(3), // 保留最新的3个日志文件
+        )
+        .append()
+        .format(my_format)
+        .create_symlink(format!("{}/{}", log_dir, log_file))
+        .start()
         .unwrap();
+}
 
-    let _ = log4rs::init_config(config).unwrap();
+fn my_format(
+    w: &mut dyn std::io::Write,
+    now: &mut DeferredNow,
+    record: &Record,
+) -> Result<(), std::io::Error> {
+    write!(
+        w,
+        "{} [{}] {}",
+        // now.format("%Y-%m-%d %H:%M:%S%.6f"),
+        now.format("%Y-%m-%d %H:%M:%S"),
+        record.level(),
+        // record.file().unwrap_or("<unnamed>"),
+        // record.line().unwrap_or(0),
+        &record.args()
+    )
 }
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index b501203..b9a4fe2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -16,7 +16,7 @@ const NFTABLES_ETC: &str = "/etc/nftables";
 const IP_FORWARD: &str="/proc/sys/net/ipv4/ip_forward";
 
 fn main() {
-    logx::init_log(LOG_PATH);
+    logx::init_log("log","nat.log");
 
     std::fs::create_dir_all(NFTABLES_ETC);
     // 修改内核参数，开启端口转发