all: remove loading system hosts file

Loading and caching system hosts file (for example, /etc/hosts in POSIX)
will leaks internal hosts if the rescached server is open to public.

The system hosts file are handled by nssswitch.conf "files" internally
so no need to loading it.

1 files changed, 0 insertions, 9 deletions

diff --git a/rescached.go b/rescached.go
index 53281d5..3f9ceed 100644
--- a/rescached.go
+++ b/rescached.go
@@ -89,15 +89,6 @@ func (srv *Server) Start() (err error) {
 		}
 	}
 
-	hfile, err = dns.ParseHostsFile(dns.GetSystemHosts())
-	if err != nil {
-		return err
-	}
-	err = srv.dns.Caches.InternalPopulateRecords(hfile.Records, hfile.Path)
-	if err != nil {
-		return err
-	}
-
 	for _, hb = range srv.env.HostBlockd {
 		if !hb.IsEnabled {
 			continue