From a4538b7fe0a3e12248bd24905477c2481703dd52 Mon Sep 17 00:00:00 2001
From: Olivier <olivier@raspot.in>
Date: Mon, 18 May 2026 11:21:20 +0200
Subject: [PATCH] =?UTF-8?q?fix:=20correct=20tcp=5Fcheck=20hint=20=E2=80=94?=
 =?UTF-8?q?=20RST=20on=20closed=20port=20means=20host=20is=20detected?=
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The previous wording wrongly implied smartphones and firewalled PCs could
be missed. Only devices that silently DROP (not REJECT) all probed ports
are undetected; a RST reply on a closed port correctly identifies the host.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 frontend/src/i18n.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/frontend/src/i18n.js b/frontend/src/i18n.js
index 9ec740f..d54710d 100644
--- a/frontend/src/i18n.js
+++ b/frontend/src/i18n.js
@@ -129,7 +129,7 @@ const LANGS = {
     scanVlans: 'VLAN(s)',
     scanNote: 'Chaque hôte est pingé puis interrogé en DNS.',
     tcpCheckLabel: 'Vérification TCP (anti proxy-ARP)',
-    tcpCheckHint: 'Sonde chaque hôte sur les ports 22, 80, 443, 8080, 8443. Élimine les faux positifs UniFi/proxy-ARP, mais peut rater les équipements sans port TCP ouvert (smartphones, PC tout firewall, etc.).',
+    tcpCheckHint: 'Sonde chaque hôte sur les ports 22, 80, 443, 8080, 8443. Élimine les faux positifs UniFi/proxy-ARP. Peut rater uniquement les équipements dont le pare-feu bloque silencieusement (DROP) tous ces ports — un hôte renvoyant RST sur un port fermé est correctement détecté.',
     hostsFound: 'hôte(s) découvert(s)',
     addressesScanned: 'adresses scannées',
     newHosts: 'nouveaux',
@@ -288,7 +288,7 @@ const LANGS = {
     scanVlans: 'VLAN(s)',
     scanNote: 'Each host is pinged then queried via DNS.',
     tcpCheckLabel: 'TCP check (anti proxy-ARP)',
-    tcpCheckHint: 'Probes each host on ports 22, 80, 443, 8080, 8443. Eliminates UniFi/proxy-ARP false positives, but may miss devices with no open TCP port (smartphones, fully-firewalled PCs, etc.).',
+    tcpCheckHint: 'Probes each host on ports 22, 80, 443, 8080, 8443. Eliminates UniFi/proxy-ARP false positives. Only misses devices whose firewall silently drops (DROP) all probed ports — a host sending RST on a closed port is correctly detected.',
     hostsFound: 'host(s) found',
     addressesScanned: 'addresses scanned',
     newHosts: 'new',
@@ -446,7 +446,7 @@ const LANGS = {
     scanVlans: 'VLAN(s)',
     scanNote: 'Cada host es pingado y luego consultado en DNS.',
     tcpCheckLabel: 'Verificación TCP (anti proxy-ARP)',
-    tcpCheckHint: 'Sondea cada host en los puertos 22, 80, 443, 8080, 8443. Elimina falsos positivos UniFi/proxy-ARP, pero puede omitir equipos sin puerto TCP abierto (smartphones, PC con firewall total, etc.).',
+    tcpCheckHint: 'Sondea cada host en los puertos 22, 80, 443, 8080, 8443. Elimina falsos positivos UniFi/proxy-ARP. Solo puede omitir equipos cuyo firewall descarta silenciosamente (DROP) todos los puertos sondeados — un host que responde RST en un puerto cerrado se detecta correctamente.',
     hostsFound: 'host(s) descubierto(s)',
     addressesScanned: 'direcciones escaneadas',
     newHosts: 'nuevos',