Initial LisgloSIPS V2 implementation

infra/server-a/s06/nftables/node-exporter.nft

@@ -0,0 +1,7 @@
+table inet lisglosips_s06 {
+  chain input {
+    type filter hook input priority filter; policy accept;
+
+    tcp dport 9100 ip saddr != 100.90.90.91 drop
+  }
+}