{"id":668,"date":"2019-04-11T13:51:31","date_gmt":"2019-04-11T12:51:31","guid":{"rendered":"https:\/\/www.alsacloud.fr\/?p=668"},"modified":"2019-04-11T13:51:31","modified_gmt":"2019-04-11T12:51:31","slug":"script-powershell-pour-lister-les-ports-tcp-ouverts-vers-lexterieur","status":"publish","type":"post","link":"https:\/\/www.alsacloud.fr\/index.php\/serveur-reseau\/reseau\/script-powershell-pour-lister-les-ports-tcp-ouverts-vers-lexterieur\/","title":{"rendered":"Script Powershell pour lister les ports TCP ouverts vers l’ext\u00e9rieur"},"content":{"rendered":"

Ayant un firewall assez restrictif sur mon lieu de travail je cherchais \u00e0 savoir quels ports sont ouverts vers l\u2019ext\u00e9rieur depuis mon poste.
\nPour cela j’ai utilis\u00e9 le script suivant qui va tester une connexion vers le domaine portquiz.net sur chaque port et me faire un fichier CSV avec la liste des ports ouverts.<\/p>\n

De base il va scanner tous les ports de 1 \u00e0 65536 mais vous pouvez modifier la plage en modifiant le port de d\u00e9part en ligne 19 et le port de fin en ligne 24<\/p>\n

L’analyse prend un certain temps mais une fois faite la config du firewall de votre entreprise ne devrait pas changer souvent.<\/p>\n

\r\n\r\n$fichierCsv = "c:\\data\\liste_ports.csv"\r\n\r\nfunction testport{\r\nParam (\r\n[Parameter(Mandatory=$true)] $port,\r\n[Parameter(Mandatory=$false)] $timeOut\r\n)\r\n$hostname='portquiz.net'\r\n$requestCallback = $state = $null\r\n$client = New-Object System.Net.Sockets.TcpClient\r\n$beginConnect = $client.BeginConnect($hostname,$port,$requestCallback,$state)\r\nStart-Sleep -milli $timeOut\r\nif ($client.Connected) { $open = "Ouvert" } else { $open = "Ferme" }\r\n$ligneaajouter = "$port;$open"\r\nADD-content -path $fichierCsv -value $ligneaajouter -Encoding UTF8\r\n$client.Close()\r\n[pscustomobject]@{hostname=$hostname;port=$port;open=$open}\r\n}\r\n\r\n$port=1\r\n\r\ndo{\r\ntestport -timeOut 50 -port $port\r\n$port++\r\n}Until($port -eq 65536)\r\n\r\nwrite-host "analyse termin\u00e9e"\r\n\r\n<\/pre>\n
Merci \u00e0 Marc Maurice<\/a> pour son service portquiz.net<\/a> utilis\u00e9 dans ce script.<\/p>\n","protected":false},"excerpt":{"rendered":"
Ayant un firewall assez restrictif sur mon lieu de travail je cherchais \u00e0 savoir quels ports sont ouverts vers l\u2019ext\u00e9rieur depuis mon poste. Pour cela j’ai utilis\u00e9 le script suivant qui va tester une connexion [Lire la suite…]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":674,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,16],"tags":[],"class_list":["post-668","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-powershell","category-reseau"],"yoast_head":"\nScript Powershell pour lister les ports TCP ouverts vers l'ext\u00e9rieur - Alsacloud.fr<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alsacloud.fr\/index.php\/serveur-reseau\/reseau\/script-powershell-pour-lister-les-ports-tcp-ouverts-vers-lexterieur\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Script Powershell pour lister les ports TCP ouverts vers l'ext\u00e9rieur - Alsacloud.fr\" \/>\n<meta property=\"og:description\" content=\"Ayant un firewall assez restrictif sur mon lieu de travail je cherchais \u00e0 savoir quels ports sont ouverts vers l\u2019ext\u00e9rieur depuis mon poste. 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