Fix connection reuse + port pre-flight

cmd/nuclei/main.go

@@ -406,6 +406,7 @@ on extensive configurability, massive extensibility and ease of use.`)
 	flagSet.CreateGroup("rate-limit", "Rate-Limit",
 		flagSet.IntVarP(&options.RateLimit, "rate-limit", "rl", 150, "maximum number of requests to send per second"),
 		flagSet.DurationVarP(&options.RateLimitDuration, "rate-limit-duration", "rld", time.Second, "maximum number of requests to send per second"),
+		flagSet.BoolVar(&options.PerHostRateLimit, "per-host-rate-limit", false, "enable per-host rate limiting (global rate limit becomes unlimited when enabled)"),
 		flagSet.IntVarP(&options.RateLimitMinute, "rate-limit-minute", "rlm", 0, "maximum number of requests to send per minute (DEPRECATED)"),
 		flagSet.IntVarP(&options.BulkSize, "bulk-size", "bs", 25, "maximum number of hosts to be analyzed in parallel per template"),
 		flagSet.IntVarP(&options.TemplateThreads, "concurrency", "c", 25, "maximum number of templates to be executed in parallel"),
@@ -434,6 +435,9 @@ on extensive configurability, massive extensibility and ease of use.`)
 		}),
 		flagSet.DurationVarP(&options.InputReadTimeout, "input-read-timeout", "irt", time.Duration(3*time.Minute), "timeout on input read"),
 		flagSet.BoolVarP(&options.DisableHTTPProbe, "no-httpx", "nh", false, "disable httpx probing for non-url input"),
+		flagSet.BoolVar(&options.PreflightPortScan, "preflight-portscan", false, "run preflight resolve + TCP portscan and filter targets before scanning (disabled by default)"),
+		flagSet.BoolVar(&options.PerHostClientPool, "per-host-client-pool", false, "enable per-host HTTP client pooling for better connection reuse"),
+		flagSet.BoolVar(&options.HTTPClientShards, "http-client-shards", false, "enable HTTP client sharding for connection pooling (auto-calculates optimal shard count, max 256)"),
 		flagSet.BoolVar(&options.DisableStdin, "no-stdin", false, "disable stdin processing"),
 	)
 

go.mod

@@ -81,6 +81,7 @@ require (
 	github.com/goccy/go-json v0.10.5
 	github.com/google/uuid v1.6.0
 	github.com/h2non/filetype v1.1.3
+	github.com/hashicorp/golang-lru/v2 v2.0.7
 	github.com/invopop/yaml v0.3.1
 	github.com/jcmturner/gokrb5/v8 v8.4.4
 	github.com/kitabisa/go-ci v1.0.3
@@ -256,7 +257,6 @@ require (
 	github.com/hashicorp/go-retryablehttp v0.7.8 // indirect
 	github.com/hashicorp/go-uuid v1.0.3 // indirect
 	github.com/hashicorp/go-version v1.7.0 // indirect
-	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
 	github.com/hbakhtiyor/strsim v0.0.0-20190107154042-4d2bbb273edf // indirect
 	github.com/hdm/jarm-go v0.0.7 // indirect
 	github.com/iangcarroll/cookiemonster v1.6.0 // indirect