diff --git a/include/loader/loader.h b/include/loader/loader.h
index e578f45..34dd326 100644
--- a/include/loader/loader.h
+++ b/include/loader/loader.h
@@ -1,6 +1,16 @@
 #ifndef _LOADER_H_
 #define _LOADER_H_
 
+#include "dnsproxy.h"
+#include "overture.h"
+
+struct {
+    dnsproxy *domestic;
+    dnsproxy *foreign;
+    overture *diverter;
+    // adguard
+} loader;
+
 void load_config(const char *config_file);
 
 #endif
diff --git a/include/utils/structure.h b/include/utils/structure.h
index 2ae345e..43dfd1f 100644
--- a/include/utils/structure.h
+++ b/include/utils/structure.h
@@ -13,6 +13,7 @@ char** string_list_init();
 void string_list_free(char **string_list);
 char* string_list_dump(char **string_list);
 uint32_t string_list_len(char **string_list);
+char** string_list_update(char **base_list, char **update_list);
 char** string_list_append(char **string_list, const char *string);
 
 #endif
diff --git a/src/cleardns.c b/src/cleardns.c
index f0f2ec9..7123644 100644
--- a/src/cleardns.c
+++ b/src/cleardns.c
@@ -38,6 +38,9 @@ int main(int argc, char *argv[]) { // ClearDNS server
 
     load_config("test.json");
 
+    dnsproxy_load("Domestic", loader.domestic, "domestic.json");
+    dnsproxy_load("Foreign", loader.foreign, "foreign.json");
+
 //    char **temp = string_list_init();
 //    temp = string_list_append(temp, "123");
 //    temp = string_list_append(temp, "abc");
diff --git a/src/dnsproxy.c b/src/dnsproxy.c
index e0363d4..15bf5d3 100644
--- a/src/dnsproxy.c
+++ b/src/dnsproxy.c
@@ -58,6 +58,10 @@ void dnsproxy_dump(const char *caption, dnsproxy *info) { // show dnsproxy info
 }
 
 process* dnsproxy_load(const char *caption, dnsproxy *info, const char *file) {
+
+    // TODO: check primary server number (non-zero)
+    // TODO: check port (1 ~ 65535)
+
     dnsproxy_dump(caption, info);
     char *config = dnsproxy_config(info); // string config (JSON format)
     char *config_file = string_join(WORK_DIR, file);
diff --git a/src/loader/loader.c b/src/loader/loader.c
index 6712725..aa5730e 100644
--- a/src/loader/loader.c
+++ b/src/loader/loader.c
@@ -1,19 +1,65 @@
 #include "loader.h"
-#include "logger.h"
 #include "config.h"
 #include "parser.h"
+#include "dnsproxy.h"
+#include "structure.h"
 
-void load_dnsproxy() {
+dnsproxy* load_domestic(cleardns_config *config) {
+    dnsproxy *domestic = dnsproxy_init(config->domestic.port);
+    domestic->verify = config->domestic.verify;
+    domestic->parallel = config->domestic.parallel;
+    if (config->cache.enable) {
+        domestic->cache = config->cache.size;
+        domestic->optimistic = config->cache.optimistic;
+    }
+    domestic->bootstrap = string_list_update(domestic->bootstrap, config->domestic.bootstrap);
+    domestic->fallback = string_list_update(domestic->fallback, config->domestic.fallback);
+    domestic->primary = string_list_update(domestic->primary, config->domestic.primary);
+    return domestic;
+}
 
+dnsproxy* load_foreign(cleardns_config *config) {
+    dnsproxy *foreign = dnsproxy_init(config->foreign.port);
+    foreign->verify = config->foreign.verify;
+    foreign->parallel = config->foreign.parallel;
+    if (config->cache.enable) {
+        foreign->cache = config->cache.size;
+        foreign->optimistic = config->cache.optimistic;
+    }
+    foreign->bootstrap = string_list_update(foreign->bootstrap, config->foreign.bootstrap);
+    foreign->fallback = string_list_update(foreign->fallback, config->foreign.fallback);
+    foreign->primary = string_list_update(foreign->primary, config->foreign.primary);
+    return foreign;
+}
+
+overture* load_diverter(cleardns_config *config) {
+    overture *diverter = overture_init(config->diverter.port);
+
+    // timeout
+    // ttl_file
+    // host_file
+    // foreign_port
+    // domestic_port
+
+    // reject_type
+
+    // foreign_ip_file
+    // domestic_ip_file
+    // foreign_domain_file
+    // domestic_domain_file
+    return diverter;
 }
 
 void load_config(const char *config_file) {
     cleardns_config *config = config_init();
     config_parser(config, config_file);
-
     config_dump(config);
 
-    // TODO: load into process
+    // TODO: use dns port as diverter when adguard disabled
 
+    loader.domestic = load_domestic(config);
+    loader.foreign = load_foreign(config);
+    loader.diverter = load_diverter(config);
+    // load adguard
     config_free(config);
 }
diff --git a/src/overture.c b/src/overture.c
index d1a5acd..e69e689 100644
--- a/src/overture.c
+++ b/src/overture.c
@@ -45,6 +45,11 @@ void overture_dump(overture *info) { // show overture info in debug log
 }
 
 process* overture_load(overture *info, const char *file) {
+
+    // TODO: check port (1 ~ 65535)
+    // TODO: check timeout not zero
+    // TODO: check whether file exist
+
     overture_dump(info);
     char *config = overture_config(info); // string config (JSON format)
     char *config_file = string_join(WORK_DIR, file);
diff --git a/src/utils/structure.c b/src/utils/structure.c
index fa1d8e8..08f4281 100644
--- a/src/utils/structure.c
+++ b/src/utils/structure.c
@@ -29,6 +29,13 @@ char** string_list_append(char **string_list, const char *string) { // add new s
     return string_list;
 }
 
+char** string_list_update(char **base_list, char **update_list) {
+    for (char **string = update_list; *string != NULL; ++string) {
+        base_list = string_list_append(base_list, *string);
+    }
+    return base_list;
+}
+
 void string_list_free(char **string_list) { // free string list
     for (char **string = string_list; *string != NULL; ++string) {
         free(*string);