From fc98c0919f92231da8780d904f02de95ebc50f40 Mon Sep 17 00:00:00 2001
From: UUBulb <35923940+uubulb@users.noreply.github.com>
Date: Fri, 22 Nov 2024 22:40:43 +0800
Subject: [PATCH] report geoip separately, fix server creation & deletion bugs
 (#14)

* new geoip method

* report geoip separately, fix server creation & deletion bugs

* fix struct tag

* fix write name

* remove deleteion list

* remove rpc realip header

* Revert "remove rpc realip header"

This reverts commit 8a5f86cf2d7df87f28cfa2a3b3430f449dd6ed73.
---
 cmd/dashboard/controller/server.go |  25 +-
 cmd/dashboard/controller/ws.go     |   4 +-
 go.mod                             |   1 +
 go.sum                             |   2 +
 model/host.go                      |  37 ++-
 model/notification.go              |   4 +-
 model/notification_test.go         |   8 +-
 model/server.go                    |   2 +
 pkg/geoip/geoip.go                 |  14 +-
 proto/nezha.pb.go                  | 353 +++++++++++++++++------------
 proto/nezha.proto                  | 110 ++++-----
 proto/nezha_grpc.pb.go             |  28 +--
 service/rpc/auth.go                |  19 +-
 service/rpc/nezha.go               | 115 +++++-----
 service/singleton/alertsentinel.go |   4 +-
 service/singleton/server.go        |  10 +
 16 files changed, 427 insertions(+), 309 deletions(-)

diff --git a/cmd/dashboard/controller/server.go b/cmd/dashboard/controller/server.go
index 71a105c..75f2f18 100644
--- a/cmd/dashboard/controller/server.go
+++ b/cmd/dashboard/controller/server.go
@@ -107,25 +107,20 @@ func batchDeleteServer(c *gin.Context) (any, error) {
 		return nil, newGormError("%v", err)
 	}
 
-	singleton.ServerLock.Lock()
-	for i := 0; i < len(servers); i++ {
-		id := servers[i]
-		delete(singleton.ServerList, id)
-
-		singleton.AlertsLock.Lock()
-		for i := 0; i < len(singleton.Alerts); i++ {
-			if singleton.AlertsCycleTransferStatsStore[singleton.Alerts[i].ID] != nil {
-				delete(singleton.AlertsCycleTransferStatsStore[singleton.Alerts[i].ID].ServerName, id)
-				delete(singleton.AlertsCycleTransferStatsStore[singleton.Alerts[i].ID].Transfer, id)
-				delete(singleton.AlertsCycleTransferStatsStore[singleton.Alerts[i].ID].NextUpdate, id)
+	singleton.AlertsLock.Lock()
+	for _, sid := range servers {
+		for _, alert := range singleton.Alerts {
+			if singleton.AlertsCycleTransferStatsStore[alert.ID] != nil {
+				delete(singleton.AlertsCycleTransferStatsStore[alert.ID].ServerName, sid)
+				delete(singleton.AlertsCycleTransferStatsStore[alert.ID].Transfer, sid)
+				delete(singleton.AlertsCycleTransferStatsStore[alert.ID].NextUpdate, sid)
 			}
 		}
-		singleton.AlertsLock.Unlock()
-
-		singleton.DB.Unscoped().Delete(&model.Transfer{}, "server_id = ?", id)
+		singleton.DB.Unscoped().Delete(&model.Transfer{}, "server_id = ?", sid)
 	}
-	singleton.ServerLock.Unlock()
+	singleton.AlertsLock.Unlock()
 
+	singleton.OnServerDelete(servers)
 	singleton.ReSortServer()
 
 	return nil, nil
diff --git a/cmd/dashboard/controller/ws.go b/cmd/dashboard/controller/ws.go
index fc96bb0..2c7d282 100644
--- a/cmd/dashboard/controller/ws.go
+++ b/cmd/dashboard/controller/ws.go
@@ -109,14 +109,12 @@ func getServerStat(c *gin.Context, withPublicNote bool) ([]byte, error) {
 		var servers []model.StreamServer
 		for i := 0; i < len(serverList); i++ {
 			server := serverList[i]
-			host := *server.Host
-			host.IP = ""
 			servers = append(servers, model.StreamServer{
 				ID:           server.ID,
 				Name:         server.Name,
 				PublicNote:   utils.IfOr(withPublicNote, server.PublicNote, ""),
 				DisplayIndex: server.DisplayIndex,
-				Host:         &host,
+				Host:         server.Host,
 				State:        server.State,
 				LastActive:   server.LastActive,
 			})
diff --git a/go.mod b/go.mod
index b3bb783..039b515 100644
--- a/go.mod
+++ b/go.mod
@@ -7,6 +7,7 @@ toolchain go1.23.1
 require (
 	github.com/appleboy/gin-jwt/v2 v2.10.0
 	github.com/chai2010/gettext-go v1.0.3
+	github.com/dustinkirkland/golang-petname v0.0.0-20240428194347-eebcea082ee0
 	github.com/gin-contrib/pprof v1.4.0
 	github.com/gin-gonic/gin v1.10.0
 	github.com/gorilla/websocket v1.5.1
diff --git a/go.sum b/go.sum
index db2fb82..0001ef3 100644
--- a/go.sum
+++ b/go.sum
@@ -24,6 +24,8 @@ github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dustinkirkland/golang-petname v0.0.0-20240428194347-eebcea082ee0 h1:aYo8nnk3ojoQkP5iErif5Xxv0Mo0Ga/FR5+ffl/7+Nk=
+github.com/dustinkirkland/golang-petname v0.0.0-20240428194347-eebcea082ee0/go.mod h1:8AuBTZBRSFqEYBPYULd+NN474/zZBLP+6WeT5S9xlAc=
 github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
 github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
 github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
diff --git a/model/host.go b/model/host.go
index b405d05..c3ed238 100644
--- a/model/host.go
+++ b/model/host.go
@@ -1,6 +1,8 @@
 package model
 
 import (
+	"fmt"
+
 	pb "github.com/naiba/nezha/proto"
 )
 
@@ -105,8 +107,6 @@ type Host struct {
 	Arch            string   `json:"arch,omitempty"`
 	Virtualization  string   `json:"virtualization,omitempty"`
 	BootTime        uint64   `json:"boot_time,omitempty"`
-	IP              string   `json:"ip,omitempty"`
-	CountryCode     string   `json:"country_code,omitempty"`
 	Version         string   `json:"version,omitempty"`
 	GPU             []string `json:"gpu,omitempty"`
 }
@@ -122,8 +122,6 @@ func (h *Host) PB() *pb.Host {
 		Arch:            h.Arch,
 		Virtualization:  h.Virtualization,
 		BootTime:        h.BootTime,
-		Ip:              h.IP,
-		CountryCode:     h.CountryCode,
 		Version:         h.Version,
 		Gpu:             h.GPU,
 	}
@@ -140,9 +138,36 @@ func PB2Host(h *pb.Host) Host {
 		Arch:            h.GetArch(),
 		Virtualization:  h.GetVirtualization(),
 		BootTime:        h.GetBootTime(),
-		IP:              h.GetIp(),
-		CountryCode:     h.GetCountryCode(),
 		Version:         h.GetVersion(),
 		GPU:             h.GetGpu(),
 	}
 }
+
+type IP struct {
+	IPv4Addr string `json:"ipv4_addr,omitempty"`
+	IPv6Addr string `json:"ipv6_addr,omitempty"`
+}
+
+func (p *IP) Join() string {
+	if p.IPv4Addr != "" && p.IPv6Addr != "" {
+		return fmt.Sprintf("%s/%s", p.IPv4Addr, p.IPv6Addr)
+	} else if p.IPv4Addr != "" {
+		return p.IPv4Addr
+	}
+	return p.IPv6Addr
+}
+
+type GeoIP struct {
+	IP          IP     `json:"ip,omitempty"`
+	CountryCode string `json:"country_code,omitempty"`
+}
+
+func PB2GeoIP(p *pb.GeoIP) GeoIP {
+	pbIP := p.GetIp()
+	return GeoIP{
+		IP: IP{
+			IPv4Addr: pbIP.GetIpv4(),
+			IPv6Addr: pbIP.GetIpv6(),
+		},
+	}
+}
diff --git a/model/notification.go b/model/notification.go
index 10ad186..2c8ece8 100644
--- a/model/notification.go
+++ b/model/notification.go
@@ -193,7 +193,7 @@ func (ns *NotificationServerBundle) replaceParamsInString(str string, message st
 		str = strings.ReplaceAll(str, "#SERVER.UDPCONNCOUNT#", mod(fmt.Sprintf("%d", ns.Server.State.UdpConnCount)))
 
 		var ipv4, ipv6, validIP string
-		ipList := strings.Split(ns.Server.Host.IP, "/")
+		ipList := strings.Split(ns.Server.GeoIP.IP.Join(), "/")
 		if len(ipList) > 1 {
 			// 双栈
 			ipv4 = ipList[0]
@@ -201,7 +201,7 @@ func (ns *NotificationServerBundle) replaceParamsInString(str string, message st
 			validIP = ipv4
 		} else if len(ipList) == 1 {
 			// 仅ipv4|ipv6
-			if strings.Contains(ipList[0], ":") {
+			if strings.IndexByte(ipList[0], ':') != -1 {
 				ipv6 = ipList[0]
 				validIP = ipv6
 			} else {
diff --git a/model/notification_test.go b/model/notification_test.go
index 515ea7d..e7e4c63 100644
--- a/model/notification_test.go
+++ b/model/notification_test.go
@@ -49,8 +49,6 @@ func execCase(t *testing.T, item testSt) {
 			Arch:            "",
 			Virtualization:  "",
 			BootTime:        0,
-			IP:              "1.1.1.1",
-			CountryCode:     "",
 			Version:         "",
 		},
 		State: &HostState{
@@ -70,6 +68,12 @@ func execCase(t *testing.T, item testSt) {
 			UdpConnCount:   0,
 			ProcessCount:   0,
 		},
+		GeoIP: &GeoIP{
+			IP: IP{
+				IPv4Addr: "1.1.1.1",
+			},
+			CountryCode: "",
+		},
 		LastActive:              time.Time{},
 		TaskClose:               nil,
 		TaskStream:              nil,
diff --git a/model/server.go b/model/server.go
index c26cba6..fc413a3 100644
--- a/model/server.go
+++ b/model/server.go
@@ -27,6 +27,7 @@ type Server struct {
 
 	Host       *Host      `gorm:"-" json:"host,omitempty"`
 	State      *HostState `gorm:"-" json:"state,omitempty"`
+	GeoIP      *GeoIP     `gorm:"-" json:"geoip,omitempty"`
 	LastActive time.Time  `gorm:"-" json:"last_active,omitempty"`
 
 	TaskClose     chan error                        `gorm:"-" json:"-"`
@@ -40,6 +41,7 @@ type Server struct {
 func (s *Server) CopyFromRunningServer(old *Server) {
 	s.Host = old.Host
 	s.State = old.State
+	s.GeoIP = old.GeoIP
 	s.LastActive = old.LastActive
 	s.TaskClose = old.TaskClose
 	s.TaskCloseLock = old.TaskCloseLock
diff --git a/pkg/geoip/geoip.go b/pkg/geoip/geoip.go
index 2d254d3..5595219 100644
--- a/pkg/geoip/geoip.go
+++ b/pkg/geoip/geoip.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"net"
 	"strings"
+	"sync"
 
 	maxminddb "github.com/oschwald/maxminddb-golang"
 )
@@ -12,6 +13,16 @@ import (
 //go:embed geoip.db
 var db []byte
 
+var (
+	dbOnce = sync.OnceValues(func() (*maxminddb.Reader, error) {
+		db, err := maxminddb.FromBytes(db)
+		if err != nil {
+			return nil, err
+		}
+		return db, nil
+	})
+)
+
 type IPInfo struct {
 	Country       string `maxminddb:"country"`
 	CountryName   string `maxminddb:"country_name"`
@@ -20,11 +31,10 @@ type IPInfo struct {
 }
 
 func Lookup(ip net.IP) (string, error) {
-	db, err := maxminddb.FromBytes(db)
+	db, err := dbOnce()
 	if err != nil {
 		return "", err
 	}
-	defer db.Close()
 
 	var record IPInfo
 	err = db.Lookup(ip, &record)
diff --git a/proto/nezha.pb.go b/proto/nezha.pb.go
index e994794..ec5c12b 100644
--- a/proto/nezha.pb.go
+++ b/proto/nezha.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.34.1
-// 	protoc        v5.28.2
+// 	protoc        v5.28.3
 // source: proto/nezha.proto
 
 package proto
@@ -34,10 +34,8 @@ type Host struct {
 	Arch            string   `protobuf:"bytes,7,opt,name=arch,proto3" json:"arch,omitempty"`
 	Virtualization  string   `protobuf:"bytes,8,opt,name=virtualization,proto3" json:"virtualization,omitempty"`
 	BootTime        uint64   `protobuf:"varint,9,opt,name=boot_time,json=bootTime,proto3" json:"boot_time,omitempty"`
-	Ip              string   `protobuf:"bytes,10,opt,name=ip,proto3" json:"ip,omitempty"`
-	CountryCode     string   `protobuf:"bytes,11,opt,name=country_code,json=countryCode,proto3" json:"country_code,omitempty"` // deprecated
-	Version         string   `protobuf:"bytes,12,opt,name=version,proto3" json:"version,omitempty"`
-	Gpu             []string `protobuf:"bytes,13,rep,name=gpu,proto3" json:"gpu,omitempty"`
+	Version         string   `protobuf:"bytes,10,opt,name=version,proto3" json:"version,omitempty"`
+	Gpu             []string `protobuf:"bytes,11,rep,name=gpu,proto3" json:"gpu,omitempty"`
 }
 
 func (x *Host) Reset() {
@@ -135,20 +133,6 @@ func (x *Host) GetBootTime() uint64 {
 	return 0
 }
 
-func (x *Host) GetIp() string {
-	if x != nil {
-		return x.Ip
-	}
-	return ""
-}
-
-func (x *Host) GetCountryCode() string {
-	if x != nil {
-		return x.CountryCode
-	}
-	return ""
-}
-
 func (x *Host) GetVersion() string {
 	if x != nil {
 		return x.Version
@@ -169,22 +153,22 @@ type State struct {
 	unknownFields protoimpl.UnknownFields
 
 	Cpu            float64                    `protobuf:"fixed64,1,opt,name=cpu,proto3" json:"cpu,omitempty"`
-	MemUsed        uint64                     `protobuf:"varint,3,opt,name=mem_used,json=memUsed,proto3" json:"mem_used,omitempty"`
-	SwapUsed       uint64                     `protobuf:"varint,4,opt,name=swap_used,json=swapUsed,proto3" json:"swap_used,omitempty"`
-	DiskUsed       uint64                     `protobuf:"varint,5,opt,name=disk_used,json=diskUsed,proto3" json:"disk_used,omitempty"`
-	NetInTransfer  uint64                     `protobuf:"varint,6,opt,name=net_in_transfer,json=netInTransfer,proto3" json:"net_in_transfer,omitempty"`
-	NetOutTransfer uint64                     `protobuf:"varint,7,opt,name=net_out_transfer,json=netOutTransfer,proto3" json:"net_out_transfer,omitempty"`
-	NetInSpeed     uint64                     `protobuf:"varint,8,opt,name=net_in_speed,json=netInSpeed,proto3" json:"net_in_speed,omitempty"`
-	NetOutSpeed    uint64                     `protobuf:"varint,9,opt,name=net_out_speed,json=netOutSpeed,proto3" json:"net_out_speed,omitempty"`
-	Uptime         uint64                     `protobuf:"varint,10,opt,name=uptime,proto3" json:"uptime,omitempty"`
-	Load1          float64                    `protobuf:"fixed64,11,opt,name=load1,proto3" json:"load1,omitempty"`
-	Load5          float64                    `protobuf:"fixed64,12,opt,name=load5,proto3" json:"load5,omitempty"`
-	Load15         float64                    `protobuf:"fixed64,13,opt,name=load15,proto3" json:"load15,omitempty"`
-	TcpConnCount   uint64                     `protobuf:"varint,14,opt,name=tcp_conn_count,json=tcpConnCount,proto3" json:"tcp_conn_count,omitempty"`
-	UdpConnCount   uint64                     `protobuf:"varint,15,opt,name=udp_conn_count,json=udpConnCount,proto3" json:"udp_conn_count,omitempty"`
-	ProcessCount   uint64                     `protobuf:"varint,16,opt,name=process_count,json=processCount,proto3" json:"process_count,omitempty"`
-	Temperatures   []*State_SensorTemperature `protobuf:"bytes,17,rep,name=temperatures,proto3" json:"temperatures,omitempty"`
-	Gpu            []float64                  `protobuf:"fixed64,18,rep,packed,name=gpu,proto3" json:"gpu,omitempty"`
+	MemUsed        uint64                     `protobuf:"varint,2,opt,name=mem_used,json=memUsed,proto3" json:"mem_used,omitempty"`
+	SwapUsed       uint64                     `protobuf:"varint,3,opt,name=swap_used,json=swapUsed,proto3" json:"swap_used,omitempty"`
+	DiskUsed       uint64                     `protobuf:"varint,4,opt,name=disk_used,json=diskUsed,proto3" json:"disk_used,omitempty"`
+	NetInTransfer  uint64                     `protobuf:"varint,5,opt,name=net_in_transfer,json=netInTransfer,proto3" json:"net_in_transfer,omitempty"`
+	NetOutTransfer uint64                     `protobuf:"varint,6,opt,name=net_out_transfer,json=netOutTransfer,proto3" json:"net_out_transfer,omitempty"`
+	NetInSpeed     uint64                     `protobuf:"varint,7,opt,name=net_in_speed,json=netInSpeed,proto3" json:"net_in_speed,omitempty"`
+	NetOutSpeed    uint64                     `protobuf:"varint,8,opt,name=net_out_speed,json=netOutSpeed,proto3" json:"net_out_speed,omitempty"`
+	Uptime         uint64                     `protobuf:"varint,9,opt,name=uptime,proto3" json:"uptime,omitempty"`
+	Load1          float64                    `protobuf:"fixed64,10,opt,name=load1,proto3" json:"load1,omitempty"`
+	Load5          float64                    `protobuf:"fixed64,11,opt,name=load5,proto3" json:"load5,omitempty"`
+	Load15         float64                    `protobuf:"fixed64,12,opt,name=load15,proto3" json:"load15,omitempty"`
+	TcpConnCount   uint64                     `protobuf:"varint,13,opt,name=tcp_conn_count,json=tcpConnCount,proto3" json:"tcp_conn_count,omitempty"`
+	UdpConnCount   uint64                     `protobuf:"varint,14,opt,name=udp_conn_count,json=udpConnCount,proto3" json:"udp_conn_count,omitempty"`
+	ProcessCount   uint64                     `protobuf:"varint,15,opt,name=process_count,json=processCount,proto3" json:"process_count,omitempty"`
+	Temperatures   []*State_SensorTemperature `protobuf:"bytes,16,rep,name=temperatures,proto3" json:"temperatures,omitempty"`
+	Gpu            []float64                  `protobuf:"fixed64,17,rep,packed,name=gpu,proto3" json:"gpu,omitempty"`
 }
 
 func (x *State) Reset() {
@@ -634,8 +618,9 @@ type GeoIP struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Ip          string `protobuf:"bytes,1,opt,name=ip,proto3" json:"ip,omitempty"`
-	CountryCode string `protobuf:"bytes,2,opt,name=country_code,json=countryCode,proto3" json:"country_code,omitempty"`
+	Use6        bool   `protobuf:"varint,1,opt,name=use6,proto3" json:"use6,omitempty"`
+	Ip          *IP    `protobuf:"bytes,2,opt,name=ip,proto3" json:"ip,omitempty"`
+	CountryCode string `protobuf:"bytes,3,opt,name=country_code,json=countryCode,proto3" json:"country_code,omitempty"`
 }
 
 func (x *GeoIP) Reset() {
@@ -670,11 +655,18 @@ func (*GeoIP) Descriptor() ([]byte, []int) {
 	return file_proto_nezha_proto_rawDescGZIP(), []int{7}
 }
 
-func (x *GeoIP) GetIp() string {
+func (x *GeoIP) GetUse6() bool {
+	if x != nil {
+		return x.Use6
+	}
+	return false
+}
+
+func (x *GeoIP) GetIp() *IP {
 	if x != nil {
 		return x.Ip
 	}
-	return ""
+	return nil
 }
 
 func (x *GeoIP) GetCountryCode() string {
@@ -684,11 +676,66 @@ func (x *GeoIP) GetCountryCode() string {
 	return ""
 }
 
+type IP struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Ipv4 string `protobuf:"bytes,1,opt,name=ipv4,proto3" json:"ipv4,omitempty"`
+	Ipv6 string `protobuf:"bytes,2,opt,name=ipv6,proto3" json:"ipv6,omitempty"`
+}
+
+func (x *IP) Reset() {
+	*x = IP{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_nezha_proto_msgTypes[8]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *IP) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*IP) ProtoMessage() {}
+
+func (x *IP) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_nezha_proto_msgTypes[8]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use IP.ProtoReflect.Descriptor instead.
+func (*IP) Descriptor() ([]byte, []int) {
+	return file_proto_nezha_proto_rawDescGZIP(), []int{8}
+}
+
+func (x *IP) GetIpv4() string {
+	if x != nil {
+		return x.Ipv4
+	}
+	return ""
+}
+
+func (x *IP) GetIpv6() string {
+	if x != nil {
+		return x.Ipv6
+	}
+	return ""
+}
+
 var File_proto_nezha_proto protoreflect.FileDescriptor
 
 var file_proto_nezha_proto_rawDesc = []byte{
 	0x0a, 0x11, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x6e, 0x65, 0x7a, 0x68, 0x61, 0x2e, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x12, 0x05, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xf2, 0x02, 0x0a, 0x04, 0x48,
+	0x6f, 0x74, 0x6f, 0x12, 0x05, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xbf, 0x02, 0x0a, 0x04, 0x48,
 	0x6f, 0x73, 0x74, 0x12, 0x1a, 0x0a, 0x08, 0x70, 0x6c, 0x61, 0x74, 0x66, 0x6f, 0x72, 0x6d, 0x18,
 	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x08, 0x70, 0x6c, 0x61, 0x74, 0x66, 0x6f, 0x72, 0x6d, 0x12,
 	0x29, 0x0a, 0x10, 0x70, 0x6c, 0x61, 0x74, 0x66, 0x6f, 0x72, 0x6d, 0x5f, 0x76, 0x65, 0x72, 0x73,
@@ -706,93 +753,95 @@ var file_proto_nezha_proto_rawDesc = []byte{
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+	0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -807,7 +856,7 @@ func file_proto_nezha_proto_rawDescGZIP() []byte {
 	return file_proto_nezha_proto_rawDescData
 }
 
-var file_proto_nezha_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
+var file_proto_nezha_proto_msgTypes = make([]protoimpl.MessageInfo, 9)
 var file_proto_nezha_proto_goTypes = []interface{}{
 	(*Host)(nil),                    // 0: proto.Host
 	(*State)(nil),                   // 1: proto.State
@@ -817,26 +866,28 @@ var file_proto_nezha_proto_goTypes = []interface{}{
 	(*Receipt)(nil),                 // 5: proto.Receipt
 	(*IOStreamData)(nil),            // 6: proto.IOStreamData
 	(*GeoIP)(nil),                   // 7: proto.GeoIP
+	(*IP)(nil),                      // 8: proto.IP
 }
 var file_proto_nezha_proto_depIdxs = []int32{
 	2, // 0: proto.State.temperatures:type_name -> proto.State_SensorTemperature
-	1, // 1: proto.NezhaService.ReportSystemState:input_type -> proto.State
-	0, // 2: proto.NezhaService.ReportSystemInfo:input_type -> proto.Host
-	4, // 3: proto.NezhaService.ReportTask:input_type -> proto.TaskResult
-	0, // 4: proto.NezhaService.RequestTask:input_type -> proto.Host
-	6, // 5: proto.NezhaService.IOStream:input_type -> proto.IOStreamData
-	7, // 6: proto.NezhaService.LookupGeoIP:input_type -> proto.GeoIP
-	5, // 7: proto.NezhaService.ReportSystemState:output_type -> proto.Receipt
-	5, // 8: proto.NezhaService.ReportSystemInfo:output_type -> proto.Receipt
-	5, // 9: proto.NezhaService.ReportTask:output_type -> proto.Receipt
-	3, // 10: proto.NezhaService.RequestTask:output_type -> proto.Task
-	6, // 11: proto.NezhaService.IOStream:output_type -> proto.IOStreamData
-	7, // 12: proto.NezhaService.LookupGeoIP:output_type -> proto.GeoIP
-	7, // [7:13] is the sub-list for method output_type
-	1, // [1:7] is the sub-list for method input_type
-	1, // [1:1] is the sub-list for extension type_name
-	1, // [1:1] is the sub-list for extension extendee
-	0, // [0:1] is the sub-list for field type_name
+	8, // 1: proto.GeoIP.ip:type_name -> proto.IP
+	1, // 2: proto.NezhaService.ReportSystemState:input_type -> proto.State
+	0, // 3: proto.NezhaService.ReportSystemInfo:input_type -> proto.Host
+	4, // 4: proto.NezhaService.ReportTask:input_type -> proto.TaskResult
+	0, // 5: proto.NezhaService.RequestTask:input_type -> proto.Host
+	6, // 6: proto.NezhaService.IOStream:input_type -> proto.IOStreamData
+	7, // 7: proto.NezhaService.ReportGeoIP:input_type -> proto.GeoIP
+	5, // 8: proto.NezhaService.ReportSystemState:output_type -> proto.Receipt
+	5, // 9: proto.NezhaService.ReportSystemInfo:output_type -> proto.Receipt
+	5, // 10: proto.NezhaService.ReportTask:output_type -> proto.Receipt
+	3, // 11: proto.NezhaService.RequestTask:output_type -> proto.Task
+	6, // 12: proto.NezhaService.IOStream:output_type -> proto.IOStreamData
+	7, // 13: proto.NezhaService.ReportGeoIP:output_type -> proto.GeoIP
+	8, // [8:14] is the sub-list for method output_type
+	2, // [2:8] is the sub-list for method input_type
+	2, // [2:2] is the sub-list for extension type_name
+	2, // [2:2] is the sub-list for extension extendee
+	0, // [0:2] is the sub-list for field type_name
 }
 
 func init() { file_proto_nezha_proto_init() }
@@ -941,6 +992,18 @@ func file_proto_nezha_proto_init() {
 				return nil
 			}
 		}
+		file_proto_nezha_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*IP); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -948,7 +1011,7 @@ func file_proto_nezha_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proto_nezha_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   8,
+			NumMessages:   9,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
diff --git a/proto/nezha.proto b/proto/nezha.proto
index 9566bd4..5f12b01 100644
--- a/proto/nezha.proto
+++ b/proto/nezha.proto
@@ -4,78 +4,78 @@ option go_package = "./proto";
 package proto;
 
 service NezhaService {
-    rpc ReportSystemState(State)returns(Receipt){}
-    rpc ReportSystemInfo(Host)returns(Receipt){}
-    rpc ReportTask(TaskResult)returns(Receipt){}
-    rpc RequestTask(Host)returns(stream Task){}
-    rpc IOStream(stream IOStreamData)returns(stream IOStreamData){}
-    rpc LookupGeoIP(GeoIP)returns(GeoIP){}
+  rpc ReportSystemState(State) returns (Receipt) {}
+  rpc ReportSystemInfo(Host) returns (Receipt) {}
+  rpc ReportTask(TaskResult) returns (Receipt) {}
+  rpc RequestTask(Host) returns (stream Task) {}
+  rpc IOStream(stream IOStreamData) returns (stream IOStreamData) {}
+  rpc ReportGeoIP(GeoIP) returns (GeoIP) {}
 }
 
 message Host {
-    string platform = 1;
-    string platform_version = 2;
-    repeated string cpu = 3;
-    uint64 mem_total = 4;
-    uint64 disk_total = 5;
-    uint64 swap_total = 6;
-    string arch = 7;
-    string virtualization = 8;
-    uint64 boot_time = 9;
-    string ip = 10;
-    string country_code = 11; // deprecated
-    string version = 12;
-    repeated string gpu = 13;
+  string platform = 1;
+  string platform_version = 2;
+  repeated string cpu = 3;
+  uint64 mem_total = 4;
+  uint64 disk_total = 5;
+  uint64 swap_total = 6;
+  string arch = 7;
+  string virtualization = 8;
+  uint64 boot_time = 9;
+  string version = 10;
+  repeated string gpu = 11;
 }
 
 message State {
-    double cpu = 1;
-    uint64 mem_used = 3;
-    uint64 swap_used = 4;
-    uint64 disk_used = 5;
-    uint64 net_in_transfer = 6;
-    uint64 net_out_transfer = 7;
-    uint64 net_in_speed = 8;
-    uint64 net_out_speed = 9;
-    uint64 uptime = 10;
-    double load1 = 11;
-    double load5 = 12;
-    double load15 = 13;
-    uint64 tcp_conn_count = 14;
-    uint64 udp_conn_count = 15;
-    uint64 process_count = 16;
-    repeated State_SensorTemperature temperatures = 17;
-    repeated double gpu = 18;
+  double cpu = 1;
+  uint64 mem_used = 2;
+  uint64 swap_used = 3;
+  uint64 disk_used = 4;
+  uint64 net_in_transfer = 5;
+  uint64 net_out_transfer = 6;
+  uint64 net_in_speed = 7;
+  uint64 net_out_speed = 8;
+  uint64 uptime = 9;
+  double load1 = 10;
+  double load5 = 11;
+  double load15 = 12;
+  uint64 tcp_conn_count = 13;
+  uint64 udp_conn_count = 14;
+  uint64 process_count = 15;
+  repeated State_SensorTemperature temperatures = 16;
+  repeated double gpu = 17;
 }
 
 message State_SensorTemperature {
-    string name = 1;
-    double temperature = 2;
+  string name = 1;
+  double temperature = 2;
 }
 
 message Task {
-    uint64 id = 1;
-    uint64 type = 2;
-    string data = 3;
+  uint64 id = 1;
+  uint64 type = 2;
+  string data = 3;
 }
 
 message TaskResult {
-    uint64 id = 1;
-    uint64 type = 2;
-    float delay = 3;
-    string data = 4;
-    bool successful = 5;
+  uint64 id = 1;
+  uint64 type = 2;
+  float delay = 3;
+  string data = 4;
+  bool successful = 5;
 }
 
-message Receipt{
-    bool proced = 1;
-}
+message Receipt { bool proced = 1; }
 
-message IOStreamData {
-    bytes data = 1;
-}
+message IOStreamData { bytes data = 1; }
 
 message GeoIP {
-    string ip = 1;
-    string country_code = 2;
-}
\ No newline at end of file
+  bool use6 = 1;
+  IP ip = 2;
+  string country_code = 3;
+}
+
+message IP {
+  string ipv4 = 1;
+  string ipv6 = 2;
+}
diff --git a/proto/nezha_grpc.pb.go b/proto/nezha_grpc.pb.go
index d8d76e1..b719f76 100644
--- a/proto/nezha_grpc.pb.go
+++ b/proto/nezha_grpc.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.5.1
-// - protoc             v5.28.2
+// - protoc             v5.28.3
 // source: proto/nezha.proto
 
 package proto
@@ -24,7 +24,7 @@ const (
 	NezhaService_ReportTask_FullMethodName        = "/proto.NezhaService/ReportTask"
 	NezhaService_RequestTask_FullMethodName       = "/proto.NezhaService/RequestTask"
 	NezhaService_IOStream_FullMethodName          = "/proto.NezhaService/IOStream"
-	NezhaService_LookupGeoIP_FullMethodName       = "/proto.NezhaService/LookupGeoIP"
+	NezhaService_ReportGeoIP_FullMethodName       = "/proto.NezhaService/ReportGeoIP"
 )
 
 // NezhaServiceClient is the client API for NezhaService service.
@@ -36,7 +36,7 @@ type NezhaServiceClient interface {
 	ReportTask(ctx context.Context, in *TaskResult, opts ...grpc.CallOption) (*Receipt, error)
 	RequestTask(ctx context.Context, in *Host, opts ...grpc.CallOption) (grpc.ServerStreamingClient[Task], error)
 	IOStream(ctx context.Context, opts ...grpc.CallOption) (grpc.BidiStreamingClient[IOStreamData, IOStreamData], error)
-	LookupGeoIP(ctx context.Context, in *GeoIP, opts ...grpc.CallOption) (*GeoIP, error)
+	ReportGeoIP(ctx context.Context, in *GeoIP, opts ...grpc.CallOption) (*GeoIP, error)
 }
 
 type nezhaServiceClient struct {
@@ -109,10 +109,10 @@ func (c *nezhaServiceClient) IOStream(ctx context.Context, opts ...grpc.CallOpti
 // This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
 type NezhaService_IOStreamClient = grpc.BidiStreamingClient[IOStreamData, IOStreamData]
 
-func (c *nezhaServiceClient) LookupGeoIP(ctx context.Context, in *GeoIP, opts ...grpc.CallOption) (*GeoIP, error) {
+func (c *nezhaServiceClient) ReportGeoIP(ctx context.Context, in *GeoIP, opts ...grpc.CallOption) (*GeoIP, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(GeoIP)
-	err := c.cc.Invoke(ctx, NezhaService_LookupGeoIP_FullMethodName, in, out, cOpts...)
+	err := c.cc.Invoke(ctx, NezhaService_ReportGeoIP_FullMethodName, in, out, cOpts...)
 	if err != nil {
 		return nil, err
 	}
@@ -128,7 +128,7 @@ type NezhaServiceServer interface {
 	ReportTask(context.Context, *TaskResult) (*Receipt, error)
 	RequestTask(*Host, grpc.ServerStreamingServer[Task]) error
 	IOStream(grpc.BidiStreamingServer[IOStreamData, IOStreamData]) error
-	LookupGeoIP(context.Context, *GeoIP) (*GeoIP, error)
+	ReportGeoIP(context.Context, *GeoIP) (*GeoIP, error)
 }
 
 // UnimplementedNezhaServiceServer should be embedded to have
@@ -153,8 +153,8 @@ func (UnimplementedNezhaServiceServer) RequestTask(*Host, grpc.ServerStreamingSe
 func (UnimplementedNezhaServiceServer) IOStream(grpc.BidiStreamingServer[IOStreamData, IOStreamData]) error {
 	return status.Errorf(codes.Unimplemented, "method IOStream not implemented")
 }
-func (UnimplementedNezhaServiceServer) LookupGeoIP(context.Context, *GeoIP) (*GeoIP, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method LookupGeoIP not implemented")
+func (UnimplementedNezhaServiceServer) ReportGeoIP(context.Context, *GeoIP) (*GeoIP, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ReportGeoIP not implemented")
 }
 func (UnimplementedNezhaServiceServer) testEmbeddedByValue() {}
 
@@ -248,20 +248,20 @@ func _NezhaService_IOStream_Handler(srv interface{}, stream grpc.ServerStream) e
 // This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
 type NezhaService_IOStreamServer = grpc.BidiStreamingServer[IOStreamData, IOStreamData]
 
-func _NezhaService_LookupGeoIP_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+func _NezhaService_ReportGeoIP_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(GeoIP)
 	if err := dec(in); err != nil {
 		return nil, err
 	}
 	if interceptor == nil {
-		return srv.(NezhaServiceServer).LookupGeoIP(ctx, in)
+		return srv.(NezhaServiceServer).ReportGeoIP(ctx, in)
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: NezhaService_LookupGeoIP_FullMethodName,
+		FullMethod: NezhaService_ReportGeoIP_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(NezhaServiceServer).LookupGeoIP(ctx, req.(*GeoIP))
+		return srv.(NezhaServiceServer).ReportGeoIP(ctx, req.(*GeoIP))
 	}
 	return interceptor(ctx, in, info, handler)
 }
@@ -286,8 +286,8 @@ var NezhaService_ServiceDesc = grpc.ServiceDesc{
 			Handler:    _NezhaService_ReportTask_Handler,
 		},
 		{
-			MethodName: "LookupGeoIP",
-			Handler:    _NezhaService_LookupGeoIP_Handler,
+			MethodName: "ReportGeoIP",
+			Handler:    _NezhaService_ReportGeoIP_Handler,
 		},
 	},
 	Streams: []grpc.StreamDesc{
diff --git a/service/rpc/auth.go b/service/rpc/auth.go
index b965958..cfd5fb0 100644
--- a/service/rpc/auth.go
+++ b/service/rpc/auth.go
@@ -2,14 +2,14 @@ package rpc
 
 import (
 	"context"
-	"log"
 	"sync"
 
+	petname "github.com/dustinkirkland/golang-petname"
+	"github.com/hashicorp/go-uuid"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/status"
 
-	"github.com/hashicorp/go-uuid"
 	"github.com/naiba/nezha/model"
 	"github.com/naiba/nezha/service/singleton"
 )
@@ -25,8 +25,8 @@ func (a *authHandler) Check(ctx context.Context) (uint64, error) {
 		return 0, status.Errorf(codes.Unauthenticated, "获取 metaData 失败")
 	}
 
-	realIp := ctx.Value(model.CtxKeyRealIP{})
-	log.Printf("bingo rpc realIp: %s, metadata: %v", realIp, md)
+	//realIp := ctx.Value(model.CtxKeyRealIP{})
+	//log.Printf("bingo rpc realIp: %s, metadata: %v", realIp, md)
 
 	var clientSecret string
 	if value, ok := md["client_secret"]; ok {
@@ -34,7 +34,7 @@ func (a *authHandler) Check(ctx context.Context) (uint64, error) {
 	}
 
 	if clientSecret != singleton.Conf.AgentSecretKey {
-		return 0, status.Errorf(codes.Unauthenticated, "客户端认证失败")
+		return 0, status.Error(codes.Unauthenticated, "客户端认证失败")
 	}
 
 	var clientUUID string
@@ -43,22 +43,25 @@ func (a *authHandler) Check(ctx context.Context) (uint64, error) {
 	}
 
 	if _, err := uuid.ParseUUID(clientUUID); err != nil {
-		return 0, status.Errorf(codes.Unauthenticated, "客户端 UUID 不合法")
+		return 0, status.Error(codes.Unauthenticated, "客户端 UUID 不合法")
 	}
 
 	singleton.ServerLock.RLock()
 	defer singleton.ServerLock.RUnlock()
+
 	clientID, hasID := singleton.ServerUUIDToID[clientUUID]
 	if !hasID {
-		s := model.Server{UUID: clientUUID}
+		s := model.Server{UUID: clientUUID, Name: petname.Generate(2, "-")}
 		if err := singleton.DB.Create(&s).Error; err != nil {
-			return 0, status.Errorf(codes.Unauthenticated, err.Error())
+			return 0, status.Error(codes.Unauthenticated, err.Error())
 		}
 		s.Host = &model.Host{}
 		s.State = &model.HostState{}
 		s.TaskCloseLock = new(sync.Mutex)
+		// generate a random silly server name
 		singleton.ServerList[s.ID] = &s
 		singleton.ServerUUIDToID[clientUUID] = s.ID
+		singleton.ReSortServer()
 		clientID = s.ID
 	}
 
diff --git a/service/rpc/nezha.go b/service/rpc/nezha.go
index 6f3e2a6..596e490 100644
--- a/service/rpc/nezha.go
+++ b/service/rpc/nezha.go
@@ -9,9 +9,8 @@ import (
 	"time"
 
 	"github.com/naiba/nezha/pkg/ddns"
-	"github.com/naiba/nezha/pkg/geoip"
+	geoipx "github.com/naiba/nezha/pkg/geoip"
 	"github.com/naiba/nezha/pkg/grpcx"
-	"github.com/naiba/nezha/pkg/utils"
 
 	"github.com/jinzhu/copier"
 
@@ -126,40 +125,6 @@ func (s *NezhaHandler) ReportSystemInfo(c context.Context, r *pb.Host) (*pb.Rece
 	singleton.ServerLock.RLock()
 	defer singleton.ServerLock.RUnlock()
 
-	// 检查并更新DDNS
-	if singleton.ServerList[clientID].EnableDDNS && host.IP != "" &&
-		(singleton.ServerList[clientID].Host == nil || singleton.ServerList[clientID].Host.IP != host.IP) {
-		ipv4, ipv6, _ := utils.SplitIPAddr(host.IP)
-		providers, err := singleton.GetDDNSProvidersFromProfiles(singleton.ServerList[clientID].DDNSProfiles, &ddns.IP{Ipv4Addr: ipv4, Ipv6Addr: ipv6})
-		if err == nil {
-			for _, provider := range providers {
-				go func(provider *ddns.Provider) {
-					provider.UpdateDomain(context.Background())
-				}(provider)
-			}
-		} else {
-			log.Printf("NEZHA>> 获取DDNS配置时发生错误: %v", err)
-		}
-	}
-
-	// 发送IP变动通知
-	if singleton.ServerList[clientID].Host != nil && singleton.Conf.EnableIPChangeNotification &&
-		((singleton.Conf.Cover == model.ConfigCoverAll && !singleton.Conf.IgnoredIPNotificationServerIDs[clientID]) ||
-			(singleton.Conf.Cover == model.ConfigCoverIgnoreAll && singleton.Conf.IgnoredIPNotificationServerIDs[clientID])) &&
-		singleton.ServerList[clientID].Host.IP != "" &&
-		host.IP != "" &&
-		singleton.ServerList[clientID].Host.IP != host.IP {
-
-		singleton.SendNotification(singleton.Conf.IPChangeNotificationGroupID,
-			fmt.Sprintf(
-				"[%s] %s, %s => %s",
-				singleton.Localizer.T("IP Changed"),
-				singleton.ServerList[clientID].Name, singleton.IPDesensitize(singleton.ServerList[clientID].Host.IP),
-				singleton.IPDesensitize(host.IP),
-			),
-			nil)
-	}
-
 	/**
 	 * 这里的 singleton 中的数据都是关机前的旧数据
 	 * 当 agent 重启时，bootTime 变大，agent 端会先上报 host 信息，然后上报 state 信息
@@ -170,11 +135,6 @@ func (s *NezhaHandler) ReportSystemInfo(c context.Context, r *pb.Host) (*pb.Rece
 		singleton.ServerList[clientID].PrevTransferOutSnapshot = singleton.ServerList[clientID].PrevTransferOutSnapshot - int64(singleton.ServerList[clientID].State.NetOutTransfer)
 	}
 
-	// 不要冲掉国家码
-	if singleton.ServerList[clientID].Host != nil {
-		host.CountryCode = singleton.ServerList[clientID].Host.CountryCode
-	}
-
 	singleton.ServerList[clientID].Host = &host
 	return &pb.Receipt{Proced: true}, nil
 }
@@ -204,28 +164,73 @@ func (s *NezhaHandler) IOStream(stream pb.NezhaService_IOStreamServer) error {
 	return nil
 }
 
-func (s *NezhaHandler) LookupGeoIP(c context.Context, r *pb.GeoIP) (*pb.GeoIP, error) {
+func (s *NezhaHandler) ReportGeoIP(c context.Context, r *pb.GeoIP) (*pb.GeoIP, error) {
 	var clientID uint64
 	var err error
 	if clientID, err = s.Auth.Check(c); err != nil {
 		return nil, err
 	}
 
-	// 根据内置数据库查询 IP 地理位置
-	ip := r.GetIp()
-	netIP := net.ParseIP(ip)
-	location, err := geoip.Lookup(netIP)
-	if err != nil {
-		return nil, err
+	geoip := model.PB2GeoIP(r)
+	joinedIP := geoip.IP.Join()
+	use6 := r.GetUse6()
+
+	singleton.ServerLock.RLock()
+	// 检查并更新DDNS
+	if singleton.ServerList[clientID].EnableDDNS && joinedIP != "" &&
+		(singleton.ServerList[clientID].GeoIP == nil || singleton.ServerList[clientID].GeoIP.IP != geoip.IP) {
+		ipv4 := geoip.IP.IPv4Addr
+		ipv6 := geoip.IP.IPv6Addr
+		providers, err := singleton.GetDDNSProvidersFromProfiles(singleton.ServerList[clientID].DDNSProfiles, &ddns.IP{Ipv4Addr: ipv4, Ipv6Addr: ipv6})
+		if err == nil {
+			for _, provider := range providers {
+				go func(provider *ddns.Provider) {
+					provider.UpdateDomain(context.Background())
+				}(provider)
+			}
+		} else {
+			log.Printf("NEZHA>> 获取DDNS配置时发生错误: %v", err)
+		}
 	}
 
+	// 发送IP变动通知
+	if singleton.ServerList[clientID].GeoIP != nil && singleton.Conf.EnableIPChangeNotification &&
+		((singleton.Conf.Cover == model.ConfigCoverAll && !singleton.Conf.IgnoredIPNotificationServerIDs[clientID]) ||
+			(singleton.Conf.Cover == model.ConfigCoverIgnoreAll && singleton.Conf.IgnoredIPNotificationServerIDs[clientID])) &&
+		singleton.ServerList[clientID].GeoIP.IP.Join() != "" &&
+		joinedIP != "" &&
+		singleton.ServerList[clientID].GeoIP.IP != geoip.IP {
+
+		singleton.SendNotification(singleton.Conf.IPChangeNotificationGroupID,
+			fmt.Sprintf(
+				"[%s] %s, %s => %s",
+				singleton.Localizer.T("IP Changed"),
+				singleton.ServerList[clientID].Name, singleton.IPDesensitize(singleton.ServerList[clientID].GeoIP.IP.Join()),
+				singleton.IPDesensitize(joinedIP),
+			),
+			nil)
+	}
+	singleton.ServerLock.RUnlock()
+
+	// 根据内置数据库查询 IP 地理位置
+	var ip string
+	if geoip.IP.IPv6Addr != "" && (use6 || geoip.IP.IPv4Addr == "") {
+		ip = geoip.IP.IPv6Addr
+	} else {
+		ip = geoip.IP.IPv4Addr
+	}
+
+	netIP := net.ParseIP(ip)
+	location, err := geoipx.Lookup(netIP)
+	if err != nil {
+		log.Printf("NEZHA>> geoip.Lookup: %v", err)
+	}
+	geoip.CountryCode = location
+
 	// 将地区码写入到 Host
-	singleton.ServerLock.RLock()
-	defer singleton.ServerLock.RUnlock()
-	if singleton.ServerList[clientID].Host == nil {
-		return nil, fmt.Errorf("host not found")
-	}
-	singleton.ServerList[clientID].Host.CountryCode = location
+	singleton.ServerLock.Lock()
+	defer singleton.ServerLock.Unlock()
+	singleton.ServerList[clientID].GeoIP = &geoip
 
-	return &pb.GeoIP{Ip: ip, CountryCode: location}, nil
+	return &pb.GeoIP{Ip: nil, CountryCode: location}, err
 }
diff --git a/service/singleton/alertsentinel.go b/service/singleton/alertsentinel.go
index b2c700c..308765d 100644
--- a/service/singleton/alertsentinel.go
+++ b/service/singleton/alertsentinel.go
@@ -157,7 +157,7 @@ func checkStatus() {
 				if alert.TriggerMode == model.ModeAlwaysTrigger || alertsPrevState[alert.ID][server.ID] != _RuleCheckFail {
 					alertsPrevState[alert.ID][server.ID] = _RuleCheckFail
 					message := fmt.Sprintf("[%s] %s(%s) %s", Localizer.T("Incident"),
-						server.Name, IPDesensitize(server.Host.IP), alert.Name)
+						server.Name, IPDesensitize(server.GeoIP.IP.Join()), alert.Name)
 					go SendTriggerTasks(alert.FailTriggerTasks, curServer.ID)
 					go SendNotification(alert.NotificationGroupID, message, NotificationMuteLabel.ServerIncident(server.ID, alert.ID), &curServer)
 					// 清除恢复通知的静音缓存
@@ -167,7 +167,7 @@ func checkStatus() {
 				// 本次通过检查但上一次的状态为失败，则发送恢复通知
 				if alertsPrevState[alert.ID][server.ID] == _RuleCheckFail {
 					message := fmt.Sprintf("[%s] %s(%s) %s", Localizer.T("Resolved"),
-						server.Name, IPDesensitize(server.Host.IP), alert.Name)
+						server.Name, IPDesensitize(server.GeoIP.IP.Join()), alert.Name)
 					go SendTriggerTasks(alert.RecoverTriggerTasks, curServer.ID)
 					go SendNotification(alert.NotificationGroupID, message, NotificationMuteLabel.ServerIncidentResolved(server.ID, alert.ID), &curServer)
 					// 清除失败通知的静音缓存
diff --git a/service/singleton/server.go b/service/singleton/server.go
index 89fe470..c586024 100644
--- a/service/singleton/server.go
+++ b/service/singleton/server.go
@@ -68,3 +68,13 @@ func ReSortServer() {
 		return SortedServerListForGuest[i].DisplayIndex > SortedServerListForGuest[j].DisplayIndex
 	})
 }
+
+func OnServerDelete(sid []uint64) {
+	ServerLock.Lock()
+	defer ServerLock.Unlock()
+	for _, id := range sid {
+		serverUUID := ServerList[id].UUID
+		delete(ServerUUIDToID, serverUUID)
+		delete(ServerList, id)
+	}
+}