nginx 0.5.1 *) Bugfix: the "post_action" directive might not run after a unsuccessful completion of a request. *) Workaround: for Eudora for Mac; bug appeared in 0.4.11. Thanks to Bron Gondwana. *) Bugfix: if the "upstream" name was used in the "fastcgi_pass", then the message "no port in upstream" was issued; bug appeared in 0.5.0. *) Bugfix: if the "proxy_pass" and "fastcgi_pass" directives used the same servers but different ports, then these directives uses the first described port; bug appeared in 0.5.0. *) Bugfix: if the "proxy_pass" and "fastcgi_pass" directives used the unix domain sockets, then these directives used first described socket; bug appeared in 0.5.0. *) Bugfix: ngx_http_auth_basic_module ignored the user if it was in the last line in the password file and there was no the carriage return, the line feed, or the ":" symbol after the password. *) Bugfix: the $upstream_response_time variable might be equal to "0.000", although response time was more than 1 millisecond.

--- a/src/http/ngx_http_upstream_round_robin.c
+++ b/src/http/ngx_http_upstream_round_robin.c
@@ -69,13 +69,20 @@ ngx_http_upstream_init_round_robin(ngx_c
     if (ngx_inet_resolve_host(cf, &u) != NGX_OK) {
         if (u.err) {
             ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
-                          "%s in upstream host \"%V\" is not found in %s:%ui",
+                          "%s in upstream \"%V\" in %s:%ui",
                           u.err, &us->host, us->file_name.data, us->line);
         }
 
         return NGX_ERROR;
     }
 
+    if (us->port == 0) {
+        ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
+                      "no port in upstream \"%V\" in %s:%ui",
+                      &us->host, us->file_name.data, us->line);
+        return NGX_ERROR;
+    }
+
     n = u.naddrs;
 
     peers = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_rr_peers_t)