From 3d51aa455006903345f554a2dd90034993796114 Mon Sep 17 00:00:00 2001 From: sergei Date: Tue, 14 Apr 2026 06:23:55 +0400 Subject: vpnem: VPN infrastructure with load-balanced multi-protocol nodes - Multi-protocol VPS nodes (VLESS-REALITY + Hysteria2 + SOCKS5) - Smart load balancing via recommendation API - Windows/Linux client (Go + Wails + sing-box) - Server API with RealIP detection and connection tracking - Auto-deployment via vpnui control plane - Silent Windows installer with UAC elevation - Load-based server recommendation (no sticky sessions) - Best Server one-click connection workflow --- internal/sync/health.go | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 internal/sync/health.go (limited to 'internal/sync/health.go') diff --git a/internal/sync/health.go b/internal/sync/health.go new file mode 100644 index 0000000..4d6ceca --- /dev/null +++ b/internal/sync/health.go @@ -0,0 +1,33 @@ +package sync + +import ( + "fmt" + "net" + "time" + + "vpnem/internal/models" +) + +// HealthCheck tests if a server's proxy port is reachable. +func HealthCheck(server models.Server, timeout time.Duration) error { + addr := fmt.Sprintf("%s:%d", server.Server, server.ServerPort) + conn, err := net.DialTimeout("tcp", addr, timeout) + if err != nil { + return fmt.Errorf("server %s unreachable: %w", server.Tag, err) + } + conn.Close() + return nil +} + +// FindHealthyServer returns the first healthy non-RU server from the list. +func FindHealthyServer(servers []models.Server, timeout time.Duration) *models.Server { + for _, s := range servers { + if s.Region == "RU" { + continue + } + if err := HealthCheck(s, timeout); err == nil { + return &s + } + } + return nil +} -- cgit v1.2.3