diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3227dc9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,52 @@
+# ---> Emacs
+# -*- mode: gitignore; -*-
+*~
+\#*\#
+/.emacs.desktop
+/.emacs.desktop.lock
+*.elc
+auto-save-list
+tramp
+.\#*
+
+# Org-mode
+.org-id-locations
+*_archive
+
+# flymake-mode
+*_flymake.*
+
+# eshell files
+/eshell/history
+/eshell/lastdir
+
+# elpa packages
+/elpa/
+
+# reftex files
+*.rel
+
+# AUCTeX auto folder
+/auto/
+
+# cask packages
+.cask/
+dist/
+
+# Flycheck
+flycheck_*.el
+
+# server auth directory
+/server/
+
+# projectiles files
+.projectile
+
+# directory configuration
+.dir-locals.el
+
+# network security
+/network-security.data
+
+# dev settings
+dn42promsrv
diff --git a/dn42promsrv b/dn42promsrv
new file mode 100755
index 0000000..c60fd91
Binary files /dev/null and b/dn42promsrv differ
diff --git a/dns.go b/dns.go
index b759c38..aeef481 100644
--- a/dns.go
+++ b/dns.go
@@ -138,7 +138,6 @@ var dns_servers = []*DNSServer{
 	&DNSServer{"jrb0001", "jrb0001", "de-1", 6, "[fd42:5d71:219:2:216:3eff:fe1e:22d6]:53", 0},
 	&DNSServer{"jrb0001", "jrb0001", "gb-1", 6, "[fd42:5d71:219:3:216:3eff:fe1e:22d6]:53", 0},
 	&DNSServer{"jrb0001", "jrb0001", "fr-1", 6, "[fd42:5d71:219:4:216:3eff:fe1e:22d6]:53", 0},
-	&DNSServer{"jrb0001", "jrb0001", "us-1", 6, "[fd42:5d71:219:5:216:3eff:fe1e:22d6]:53", 0},
 	&DNSServer{"jrb0001", "jrb0001", "au-1", 6, "[fd42:5d71:219:6:216:3eff:fe1e:22d6]:53", 0},
 	&DNSServer{"jrb0001", "jrb0001", "jp-1", 6, "[fd42:5d71:219:7:216:3eff:fe1e:22d6]:53", 0},
 	&DNSServer{"jrb0001", "jrb0001", "sg-1", 6, "[fd42:5d71:219:8:216:3eff:fe1e:22d6]:53", 0},
@@ -147,7 +146,6 @@ var dns_servers = []*DNSServer{
 	&DNSServer{"jrb0001", "jrb0001", "us-3", 6, "[fd42:5d71:219:b:216:3eff:fe1e:22d6]:53", 0},
 	&DNSServer{"jrb0001", "jrb0001", "us-4", 6, "[fd42:5d71:219:c:216:3eff:fe1e:22d6]:53", 0},
 	&DNSServer{"jrb0001", "jrb0001", "us-5", 6, "[fd42:5d71:219:d:216:3eff:fe1e:22d6]:53", 0},
-	&DNSServer{"jrb0001", "jrb0001", "kr-1", 6, "[fd42:5d71:219:e:216:3eff:fe1e:22d6]:53", 0},
 
 	// Kioubit
 
@@ -185,6 +183,20 @@ var dns_servers = []*DNSServer{
 	&DNSServer{"jlu5", "jlu5", "jp-tyo01", 6, "[fd86:bad:11b7:224::1]:53", 0},
 	&DNSServer{"jlu5", "jlu5", "au-syd01", 6, "[fd86:bad:11b7:225::1]:53", 0},
 	&DNSServer{"jlu5", "jlu5", "es-mad01", 6, "[fd86:bad:11b7:120::1]:53", 0},
+	&DNSServer{"jlu5", "jlu5", "sg01", 6, "[fd86:bad:11b7:227::1]:53", 0},
+	&DNSServer{"jlu5", "jlu5", "br-sao01", 6, "[fd86:bad:11b7:333::1]:53", 0},
+
+	// lantian
+
+	&DNSServer{"recursive", "lantian", "t.recursive-servers.dn42", 4,
+		"172.22.76.110", 0},
+	&DNSServer{"recursive", "lantian", "t.recursive-servers.dn42", 6,
+		"[fdbc:f9dc:67ad:2547::53]:53", 0},
+
+	&DNSServer{"lantian", "lantian", "gigsgigscloud", 6, "[fdbc:f9dc:67ad:1::53]:53", 0},
+	&DNSServer{"lantian", "lantian", "virtono", 6, "[fdbc:f9dc:67ad:2::53]:53", 0},
+	&DNSServer{"lantian", "lantian", "hostdare", 6, "[fdbc:f9dc:67ad:3::53]:53", 0},
+	&DNSServer{"lantian", "lantian", "virmach-ny1g", 6, "[fdbc:f9dc:67ad:8::53]:53", 0},
 }
 
 //////////////////////////////////////////////////////////////////////////