diff --git a/trunk/Dockerfile b/trunk/Dockerfile
index d49c99a07..98c506d71 100644
--- a/trunk/Dockerfile
+++ b/trunk/Dockerfile
@@ -56,4 +56,6 @@ RUN ldd /usr/local/srs/objs/ffmpeg/bin/ffmpeg && \
 
 # Default workdir and command.
 WORKDIR /usr/local/srs
-CMD ["./objs/srs", "-c", "conf/docker.conf"]
+ENV SRS_SRS_LOG_TANK=console SRS_DAEMON=off
+CMD ["./objs/srs", "-c", "conf/srs.conf"]
+
diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf
index 81542f2ae..e01556c61 100644
--- a/trunk/conf/full.conf
+++ b/trunk/conf/full.conf
@@ -193,10 +193,10 @@ http_api {
         # default: off
         enabled off;
         # whether enable rpc reload.
+        # Overwrite by env SRS_HTTP_API_RAW_API_ALLOW_RELOAD
         # default: off
         allow_reload off;
         # whether enable rpc query.
-        # Overwrite by env SRS_HTTP_API_RAW_API_ALLOW_RELOAD
         # Always off by https://github.com/ossrs/srs/issues/2653
         #allow_query off;
         # whether enable rpc update.
diff --git a/trunk/doc/CHANGELOG.md b/trunk/doc/CHANGELOG.md
index df163121b..6148a4d9d 100644
--- a/trunk/doc/CHANGELOG.md
+++ b/trunk/doc/CHANGELOG.md
@@ -24,6 +24,7 @@ The changelog for SRS.
 
 ## SRS 5.0 Changelog
 
+* v5.0, 2022-12-31, Refine default config file for SRS. v5.0.120
 * v5.0, 2022-12-26, For [#939](https://github.com/ossrs/srs/issues/939): FLV: Fix bug for header flag gussing. v5.0.119
 * v5.0, 2022-12-26, For [#296](https://github.com/ossrs/srs/issues/296): MP3: Convert RTMP(MP3) to WebRTC(OPUS). v5.0.118
 * v5.0, 2022-12-25, For [#296](https://github.com/ossrs/srs/issues/296): MP3: Support dump stream information. v5.0.117
diff --git a/trunk/src/app/srs_app_config.cpp b/trunk/src/app/srs_app_config.cpp
index 0f70ce1ae..ac55f6f86 100644
--- a/trunk/src/app/srs_app_config.cpp
+++ b/trunk/src/app/srs_app_config.cpp
@@ -1837,8 +1837,8 @@ srs_error_t SrsConfig::parse_options(int argc, char** argv)
         }
     }
     
-    // Show help if has any argv
-    show_help = argc > 1;
+    // Show help if it has no argv
+    show_help = argc == 1;
     for (int i = 1; i < argc; i++) {
         if ((err = parse_argv(i, argv)) != srs_success) {
             return srs_error_wrap(err, "parse argv");
@@ -1858,56 +1858,24 @@ srs_error_t SrsConfig::parse_options(int argc, char** argv)
         fprintf(stdout, "%s\n", RTMP_SIG_SRS_SERVER);
         exit(0);
     }
-    
-    // first hello message.
+
+    // The first hello message.
     srs_trace(_srs_version);
 
     // Config the env_only_ by env.
     if (getenv("SRS_ENV_ONLY")) env_only_ = true;
 
-    // Try config files as bellow:
-    //      User specified config(not empty), like user/docker.conf
-    //      If user specified *docker.conf, try *srs.conf, like user/srs.conf
-    //      Try the default srs config, defined as SRS_CONF_DEFAULT_COFNIG_FILE, like conf/srs.conf
-    //      Try config for FHS, like /etc/srs/srs.conf @see https://github.com/ossrs/srs/pull/2711
-    if (!env_only_) {
-        vector<string> try_config_files;
-        if (!config_file.empty()) {
-            try_config_files.push_back(config_file);
-        }
-        if (srs_string_ends_with(config_file, "docker.conf")) {
-            try_config_files.push_back(srs_string_replace(config_file, "docker.conf", "srs.conf"));
-        }
-        try_config_files.push_back(SRS_CONF_DEFAULT_COFNIG_FILE);
-        try_config_files.push_back("/etc/srs/srs.conf");
-
-        // Match the first exists file.
-        string exists_config_file;
-        for (int i = 0; i < (int) try_config_files.size(); i++) {
-            string try_config_file = try_config_files.at(i);
-            if (srs_path_exists(try_config_file)) {
-                exists_config_file = try_config_file;
-                break;
-            }
-        }
-
-        if (exists_config_file.empty()) {
-            return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "no config file at %s", srs_join_vector_string(try_config_files, ", ").c_str());
-        }
-
-        if (config_file != exists_config_file) {
-            srs_warn("user config %s does not exists, use %s instead", config_file.c_str(), exists_config_file.c_str());
-            config_file = exists_config_file;
-        }
-    }
-
     // Overwrite the config by env SRS_CONFIG_FILE.
-    if (!srs_getenv("srs.config.file").empty()) {
-        string ov = config_file;
-        config_file = srs_getenv("srs.config.file");
+    if (!env_only_ && !srs_getenv("srs.config.file").empty()) { // SRS_CONFIG_FILE
+        string ov = config_file; config_file = srs_getenv("srs.config.file");
         srs_trace("ENV: Overwrite config %s to %s", ov.c_str(), config_file.c_str());
     }
 
+    // Make sure config file exists.
+    if (!env_only_ && !srs_path_exists(config_file)) {
+        return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "no config file at %s", config_file.c_str());
+    }
+
     // Parse the matched config file.
     if (!env_only_) {
         err = parse_file(config_file.c_str());
diff --git a/trunk/src/core/srs_core_version5.hpp b/trunk/src/core/srs_core_version5.hpp
index 48ac7b5f5..4729765f1 100644
--- a/trunk/src/core/srs_core_version5.hpp
+++ b/trunk/src/core/srs_core_version5.hpp
@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       5
 #define VERSION_MINOR       0
-#define VERSION_REVISION    119
+#define VERSION_REVISION    120
 
 #endif