diff --git a/examples/filelistd.c b/examples/filelistd.c
index 228c38d..1a22eb9 100644
--- a/examples/filelistd.c
+++ b/examples/filelistd.c
@@ -325,9 +325,13 @@ int main(int argc, char **argv)
   sxhub_t *sxmphub = sxhub_create();
   int port = DEFAULT_PORT;
   int opt;
+  int is_daemon = 0;
 
-  while((opt = getopt(argc, argv, "p:r:u:")) != -1) {
+  while((opt = getopt(argc, argv, "dp:r:u:")) != -1) {
     switch(opt) {
+    case 'd':
+      is_daemon = 1;
+      break;
     case 'p':
       port = atoi(optarg);
       break;
@@ -339,7 +343,7 @@ int main(int argc, char **argv)
       break;
     default:
       fprintf(stderr, "usage: %s [-p <PORTNUM>] -r <PATH to Root CA> -u <PATH"
-              " to SSL certificate>\n", argv[0]);
+              " to SSL certificate> [-d]\n", argv[0]);
       return EINVAL;
     }
   }
@@ -354,6 +358,12 @@ int main(int argc, char **argv)
     return EINVAL;
   }
 
+  /* become daemon if it's necessary */
+  if (is_daemon && (opt = daemonize())) {
+    fprintf(stderr, "daemonize() failed (%d).\n Failure.\n", opt);
+    return EINVAL;
+  }
+
   sxmp_init();
 
   /* all is fine let's init connection subsystem */
diff --git a/examples/smpfd.c b/examples/smpfd.c
index 1aa6ee0..0a75452 100644
--- a/examples/smpfd.c
+++ b/examples/smpfd.c
@@ -233,7 +233,8 @@ static void __help_print(FILE *fso, const char *fmtname)
   /* usage options */
   fprintf(fso, "Usage:\n");
   fprintf(fso, "\t%s -r | --root-x509 <path> -u | --master-x509 <path> "
-          " [-p | --listen-port <port>] [-R | --root-dir <directory>]\n", fmtname);
+          " [-p | --listen-port <port>] [-R | --root-dir <directory>] "
+          " [-d | --daemonize]\n", fmtname);
 
   /* defaults */
   fprintf(fso, "\t%s -h | --help\n", fmtname);
@@ -249,6 +250,7 @@ static void __help_print(FILE *fso, const char *fmtname)
           "-p | --listen-port <port>", DEFAULT_PORT);
   fprintf(fso, "\t%-33s Remote directory becoming root for user [default: %s].\n",
           "-R | --root-dir <directory>", DEFAULT_ROOT_DIR);
+  fprintf(fso, "\t%-33s Work as a daemon.\n", "-d | --daemonize");
   fprintf(fso, "\t%-33s Show help screen.\n", "-h | --help");
   fprintf(fso, "\t%-33s Print version information.\n", "-v | --version");
   return;
@@ -511,6 +513,7 @@ int main(int argc, char **argv)
   sxhub_t *sxmphub = sxhub_create();
   int port = DEFAULT_PORT;
   int opt;
+  int is_daemon = 0;
 
   while(1) {
     int option_index = 0;
@@ -523,10 +526,11 @@ int main(int argc, char **argv)
       {"master-x509", required_argument, NULL, 'm'},
       {"root-dir", required_argument, NULL, 'R'},
       {"listen-port", required_argument, NULL, 'p'},
+      {"daemonize", required_argument, NULL, 'd'},
       { NULL, 0, NULL, 0 },
     };
 
-    if((opt = getopt_long(argc, argv, "hvr:m:R:p:", long_options,
+    if((opt = getopt_long(argc, argv, "dhvr:m:R:p:", long_options,
                           &option_index)) == -1) break;
 
     switch(opt) {
@@ -550,6 +554,9 @@ int main(int argc, char **argv)
     case 'R':
       root_dir = strdup(optarg);
       break;
+    case 'd':
+      is_daemon = 1;
+      break;
     }
   }
 
@@ -565,6 +572,12 @@ int main(int argc, char **argv)
     return EINVAL;
   }
 
+  /* become daemon if it's necessary */
+  if (is_daemon && (opt = daemonize())) {
+    fprintf(stderr, "daemonize() failed (%d).\n Failure.\n", opt);
+    return EINVAL;
+  }
+
   sxmp_init();
 
   /* all is fine let's init connection subsystem */
diff --git a/examples/streamfld.c b/examples/streamfld.c
index 3402704..ca3f9d3 100644
--- a/examples/streamfld.c
+++ b/examples/streamfld.c
@@ -235,7 +235,7 @@ static void __help_print(FILE *fso, const char *fmtname)
   /* usage options */
   fprintf(fso, "Usage:\n");
   fprintf(fso, "\t%s -r | --root-x509 <path> -u | --master-x509 <path> "
-          " [-p | --listen-port <port>]\n", fmtname);
+          " [-p | --listen-port <port>]  [-d | --daemonize]\n", fmtname);
 
   /* defaults */
   fprintf(fso, "\t%s -h | --help\n", fmtname);
@@ -249,6 +249,7 @@ static void __help_print(FILE *fso, const char *fmtname)
           "-m | --master-x509 <path>");
   fprintf(fso, "\t%-33s Remote host listening port number [default: %d].\n",
           "-p | --listen-port <port>", DEFAULT_PORT);
+  fprintf(fso, "\t%-33s Work as a daemon.\n", "-d | --daemonize");
   fprintf(fso, "\t%-33s Show help screen.\n", "-h | --help");
   fprintf(fso, "\t%-33s Print version information.\n", "-v | --version");
   return;
@@ -260,6 +261,7 @@ int main(int argc, char **argv)
   sxhub_t *sxmphub = sxhub_create();
   int port = DEFAULT_PORT;
   int opt;
+  int is_daemon = 0;
 
   while(1) {
     int option_index = 0;
@@ -271,10 +273,11 @@ int main(int argc, char **argv)
       {"root-x509", required_argument, NULL, 'r'},
       {"master-x509", required_argument, NULL, 'm'},
       {"listen-port", required_argument, NULL, 'p'},
+      {"daemonize", required_argument, NULL, 'd'},
       { NULL, 0, NULL, 0 },
     };
 
-    if((opt = getopt_long(argc, argv, "hvr:m:p:", long_options,
+    if((opt = getopt_long(argc, argv, "dhvr:m:p:", long_options,
                           &option_index)) == -1) break;
 
     switch(opt) {
@@ -295,6 +298,9 @@ int main(int argc, char **argv)
     case 'p':
       port = atoi(optarg);
       break;
+    case 'd':
+      is_daemon = 1;
+      break;
     }
   }
 
@@ -310,6 +316,12 @@ int main(int argc, char **argv)
     return EINVAL;
   }
 
+  /* become daemon if it's necessary */
+  if (is_daemon && (opt = daemonize())) {
+    fprintf(stderr, "daemonize() failed (%d).\n Failure.\n", opt);
+    return EINVAL;
+  }
+
   sxmp_init();
 
   /* all is fine let's init connection subsystem */