Refactor DNS and SMTP configurations; add system DNS management

- Updated DNS server address configuration to use BindAddress and DnsPort.
- Enhanced email submission to utilize BindAddress for SMTP server address.
- Improved error messages for unknown recipient domains.
- Introduced a new OrderedMap structure for route management.
- Added system DNS management functions for Linux, Darwin, and Windows platforms.
- Created new dashboard services for DNS configuration and overview.
- Updated UI to include Proxy Rules section and improved descriptions.
- Added new utility functions for handling DNS configurations.

6 files changed, 10 insertions, 12 deletions

diff --git a/models/dns/a.go b/models/dns/a.go
index b3c7f38..3965e0e 100644
--- a/models/dns/a.go
+++ b/models/dns/a.go
@@ -9,6 +9,5 @@ type ARecord struct {
 	DomainID uint   `gorm:"not null;index" json:"domain_id"`
 	Name     string `gorm:"not null;default:@" json:"name"`
 	Address  string `gorm:"not null" json:"address"`
-	Port     int    `gorm:"default:0" json:"port"`
-	TTL      uint32 `gorm:"not null;default:300" json:"ttl"`
+	TTL      uint32 `gorm:"not null;default:1" json:"ttl"`
 }
diff --git a/models/dns/aaaa.go b/models/dns/aaaa.go
index 0053fe0..3fc985f 100644
--- a/models/dns/aaaa.go
+++ b/models/dns/aaaa.go
@@ -9,5 +9,5 @@ type AAAARecord struct {
 	DomainID uint   `gorm:"not null;index" json:"domain_id"`
 	Name     string `gorm:"not null;default:@" json:"name"`
 	Address  string `gorm:"not null" json:"address"`
-	TTL      uint32 `gorm:"not null;default:300" json:"ttl"`
+	TTL      uint32 `gorm:"not null;default:1" json:"ttl"`
 }
diff --git a/models/dns/cname.go b/models/dns/cname.go
index 5460f82..4c4223c 100644
--- a/models/dns/cname.go
+++ b/models/dns/cname.go
@@ -9,5 +9,5 @@ type CNAMERecord struct {
 	DomainID uint   `gorm:"not null;index" json:"domain_id"`
 	Name     string `gorm:"not null" json:"name"`
 	Target   string `gorm:"not null" json:"target"`
-	TTL      uint32 `gorm:"not null;default:300" json:"ttl"`
+	TTL      uint32 `gorm:"not null;default:1" json:"ttl"`
 }
diff --git a/models/dns/mx.go b/models/dns/mx.go
index ca1edb0..2049767 100644
--- a/models/dns/mx.go
+++ b/models/dns/mx.go
@@ -6,10 +6,9 @@ import (
 
 type MXRecord struct {
 	gorm.Model
-	DomainID  uint   `gorm:"not null;index" json:"domain_id"`
-	Name      string `gorm:"not null;default:@" json:"name"`
-	Target    string `gorm:"not null" json:"target"`
-	Priority  uint16 `gorm:"not null;default:10" json:"priority"`
-	TTL       uint32 `gorm:"not null;default:300" json:"ttl"`
-	IsManaged bool   `gorm:"not null;default:false" json:"is_managed"`
+	DomainID uint   `gorm:"not null;index" json:"domain_id"`
+	Name     string `gorm:"not null;default:@" json:"name"`
+	Target   string `gorm:"not null" json:"target"`
+	Priority uint16 `gorm:"not null;default:10" json:"priority"`
+	TTL      uint32 `gorm:"not null;default:1" json:"ttl"`
 }
diff --git a/models/dns/srv.go b/models/dns/srv.go
index 481ee7e..1994f0d 100644
--- a/models/dns/srv.go
+++ b/models/dns/srv.go
@@ -13,5 +13,5 @@ type SRVRecord struct {
 	Weight   uint16 `gorm:"not null;default:0" json:"weight"`
 	Port     uint16 `gorm:"not null" json:"port"`
 	Protocol string `gorm:"not null;default:tcp" json:"protocol"`
-	TTL      uint32 `gorm:"not null;default:300" json:"ttl"`
+	TTL      uint32 `gorm:"not null;default:1" json:"ttl"`
 }
diff --git a/models/dns/txt.go b/models/dns/txt.go
index 98342b3..0ee69c3 100644
--- a/models/dns/txt.go
+++ b/models/dns/txt.go
@@ -9,5 +9,5 @@ type TXTRecord struct {
 	DomainID uint   `gorm:"not null;index" json:"domain_id"`
 	Name     string `gorm:"not null;default:@" json:"name"`
 	Content  string `gorm:"not null" json:"content"`
-	TTL      uint32 `gorm:"not null;default:300" json:"ttl"`
+	TTL      uint32 `gorm:"not null;default:1" json:"ttl"`
 }