--- a/src/http/ngx_http.c
+++ b/src/http/ngx_http.c
@@ -73,7 +73,6 @@ static char *
 ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 {
     char                        *rv;
-    u_char                       ch;
     ngx_int_t                    rc, j;
     ngx_uint_t                   mi, m, s, l, p, a, i, n;
     ngx_uint_t                   find_config_index, use_rewrite, use_access;
@@ -648,40 +647,20 @@ ngx_http_block(ngx_conf_t *cf, ngx_comma
             }
 
             name = in_addr[a].names.elts;
+
             for (s = 0; s < in_addr[a].names.nelts; s++) {
 
-                ch = name[s].name.data[0];
-
-                if (ch == '*' || ch == '.') {
-                    continue;
-                }
-
                 rc = ngx_hash_add_key(&ha, &name[s].name, name[s].core_srv_conf,
-                                      0);
+                                      NGX_HASH_WILDCARD_KEY);
 
                 if (rc == NGX_ERROR) {
                     return NGX_CONF_ERROR;
                 }
 
-                if (rc == NGX_BUSY) {
-                    ngx_log_error(NGX_LOG_WARN, cf->log, 0,
-                                "conflicting server name \"%V\" on %s, ignored",
+                if (rc == NGX_DECLINED) {
+                    ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
+                                "invalid server name or wildcard \"%V\" on %s",
                                 &name[s].name, in_addr[a].listen_conf->addr);
-                }
-            }
-
-            for (s = 0; s < in_addr[a].names.nelts; s++) {
-
-                ch = name[s].name.data[0];
-
-                if (ch != '*' && ch != '.') {
-                    continue;
-                }
-
-                rc = ngx_hash_add_key(&ha, &name[s].name, name[s].core_srv_conf,
-                                      NGX_HASH_WILDCARD_KEY);
-
-                if (rc == NGX_ERROR) {
                     return NGX_CONF_ERROR;
                 }
 
@@ -709,25 +688,46 @@ ngx_http_block(ngx_conf_t *cf, ngx_comma
                 }
             }
 
-            if (ha.dns_wildcards.nelts) {
+            if (ha.dns_wc_head.nelts) {
 
-                ngx_qsort(ha.dns_wildcards.elts,
-                          (size_t) ha.dns_wildcards.nelts,
+                ngx_qsort(ha.dns_wc_head.elts,
+                          (size_t) ha.dns_wc_head.nelts,
                           sizeof(ngx_hash_key_t),
                           ngx_http_cmp_dns_wildcards);
 
                 hash.hash = NULL;
                 hash.temp_pool = ha.temp_pool;
 
-                if (ngx_hash_wildcard_init(&hash, ha.dns_wildcards.elts,
-                                           ha.dns_wildcards.nelts)
+                if (ngx_hash_wildcard_init(&hash, ha.dns_wc_head.elts,
+                                           ha.dns_wc_head.nelts)
                     != NGX_OK)
                 {
                     ngx_destroy_pool(ha.temp_pool);
                     return NGX_CONF_ERROR;
                 }
 
-                in_addr[a].dns_wildcards = (ngx_hash_wildcard_t *) hash.hash;
+                in_addr[a].wc_head = (ngx_hash_wildcard_t *) hash.hash;
+            }
+
+            if (ha.dns_wc_tail.nelts) {
+
+                ngx_qsort(ha.dns_wc_tail.elts,
+                          (size_t) ha.dns_wc_tail.nelts,
+                          sizeof(ngx_hash_key_t),
+                          ngx_http_cmp_dns_wildcards);
+
+                hash.hash = NULL;
+                hash.temp_pool = ha.temp_pool;
+
+                if (ngx_hash_wildcard_init(&hash, ha.dns_wc_tail.elts,
+                                           ha.dns_wc_tail.nelts)
+                    != NGX_OK)
+                {
+                    ngx_destroy_pool(ha.temp_pool);
+                    return NGX_CONF_ERROR;
+                }
+
+                in_addr[a].wc_tail = (ngx_hash_wildcard_t *) hash.hash;
             }
 
             ngx_destroy_pool(ha.temp_pool);
@@ -848,8 +848,10 @@ ngx_http_block(ngx_conf_t *cf, ngx_comma
                 hip->addrs[i].core_srv_conf = in_addr[i].core_srv_conf;
 
                 if (in_addr[i].hash.buckets == NULL
-                    && (in_addr[i].dns_wildcards == NULL
-                        || in_addr[i].dns_wildcards->hash.buckets == NULL))
+                    && (in_addr[i].wc_head == NULL
+                        || in_addr[i].wc_head->hash.buckets == NULL)
+                    && (in_addr[i].wc_head == NULL
+                        || in_addr[i].wc_head->hash.buckets == NULL))
                 {
                     continue;
                 }
@@ -861,7 +863,8 @@ ngx_http_block(ngx_conf_t *cf, ngx_comma
                 hip->addrs[i].virtual_names = vn;
 
                 vn->hash = in_addr[i].hash;
-                vn->dns_wildcards = in_addr[i].dns_wildcards;
+                vn->wc_head = in_addr[i].wc_head;
+                vn->wc_tail = in_addr[i].wc_tail;
             }
 
             if (done) {
@@ -934,7 +937,8 @@ ngx_http_add_address(ngx_conf_t *cf, ngx
     in_addr->addr = lscf->addr;
     in_addr->hash.buckets = NULL;
     in_addr->hash.size = 0;
-    in_addr->dns_wildcards = NULL;
+    in_addr->wc_head = NULL;
+    in_addr->wc_tail = NULL;
     in_addr->names.elts = NULL;
     in_addr->core_srv_conf = cscf;
     in_addr->default_server = lscf->conf.default_server;