add 'ipsec-to-dns'

doc/ipsec-to-dns.md

@@ -0,0 +1,46 @@
+Create DNS records for IPSec peers
+==================================
+
+[◀ Go back to main README](../README.md)
+
+🛈 This script can not be used on its own but requires the base installation.
+See [main README](../README.md) for details.
+
+Description
+-----------
+
+This script adds (and removes) dns records based on IPSec peers and their
+dynamic addresses from mode-config.
+
+Requirements and installation
+-----------------------------
+
+Just install the script:
+
+    $ScriptInstallUpdate ipsec-to-dns;
+
+This script is run from scheduler:
+
+    / system scheduler add interval=1m name=ipsec-to-dns on-event="/ system script run ipsec-to-dns;" start-time=startup;
+
+Configuration
+-------------
+
+On first run a disabled static dns record acting as marker (with comment
+"`--- ipsec-to-dns above ---`") is added. Move this entry to define where new
+entries are to be added.
+
+The configuration goes to `global-config-overlay`, these are the parameters:
+
+* `Domain`: the domain used for dns records
+* `HostNameInZone`: whether or not to add the ipsec/dns server's hostname
+* `PrefixInZone`: whether or not to add prefix `ipsec`
+
+See also
+--------
+
+* [Create DNS records for DHCP leases](dns-to-dhcp.md)
+
+---
+[◀ Go back to main README](../README.md)  
+[▲ Go back to top](#top)