{"id":168,"date":"2023-12-05T15:28:23","date_gmt":"2023-12-05T14:28:23","guid":{"rendered":"https:\/\/artheodoc.fr\/?page_id=168"},"modified":"2023-12-10T17:07:07","modified_gmt":"2023-12-10T16:07:07","slug":"voir-les-ports-ouverts-sous-linux","status":"publish","type":"page","link":"https:\/\/artheodoc.fr\/index.php\/voir-les-ports-ouverts-sous-linux\/","title":{"rendered":"Voir les ports ouverts sous\u00a0Linux"},"content":{"rendered":"\n

Pour savoir quels sont les ports utilis\u00e9s sur un ordinateur sous Linux on peut utiliser la commande ss.<\/strong><\/p>\n\n\n\n

Les diff\u00e9rents arguments :<\/p>\n\n\n\n

-t : affiche les ports TCP<\/p>\n\n\n\n

-u : affiche les ports UDP<\/p>\n\n\n\n

-l : affiche les ports en \u00e9coute (affiche par d\u00e9faut les ports en cours d\u2019utilisation)<\/p>\n\n\n\n

-a : affiche tous les ports (en \u00e9coute ou en utilisation)<\/p>\n\n\n\n

-p : affiche le processus li\u00e9 \u00e0 chaque port<\/p>\n\n\n\n

-n : affiche les adresses IP et les num\u00e9ros de ports au lieu des noms DNS et des noms de services<\/p>\n\n\n\n

Pour voir les ports en \u00e9coute, on peut utiliser la commandes :<\/p>\n\n\n\n

 ss -tulnp<\/strong><\/pre>\n\n\n\n
Pour afficher la liste des ports ouverts et des communications en cours ainsi que les processus li\u00e9s :<\/p>\n\n\n\n
ss -ap<\/strong><\/pre>\n\n\n\n
\n\n\n\n
Liste des services r\u00e9seaux en \u00e9coute sur Linux \u2013 commande netstat<\/strong>.<\/p>\n\n\n\n
La commande netstat s\u2019ex\u00e9cute indiff\u00e9remment sur Windows et sur Linux. Toutefois, les commutateurs associ\u00e9s \u00e0 la commande ne sont pas les m\u00eames sur les deux syst\u00e8mes d\u2019exploitation. Elle est bien plus compl\u00e8te sur Linux.<\/p>\n\n\n\n
netstat fait partie du packet net-tools, pour l\u2019installer sous Debian si besoin :<\/p>\n\n\n\n
# apt-get install net-tools<\/strong><\/pre>\n\n\n\n
Param\u00e8tres de la commande netstat sous Linux<\/p>\n\n\n\n
Bizarrement, le man sous Linux ne nous fournit pas tous les param\u00e8tres utilisables.<\/p>\n\n\n\n
-n           Affiche les adresses Ip sur lesquelles les services \u00e9coutent<\/p>\n\n\n\n
-p           Affiche les noms des programmes<\/p>\n\n\n\n
-l             Affiche les ports en \u00e9coute (activit\u00e9 serveur)<\/p>\n\n\n\n
-t            Affiche les applications Tcp<\/p>\n\n\n\n
-u           Affiche les applications Udp<\/p>\n\n\n\n
La liste des services r\u00e9seaux en \u00e9coute sous Linux<\/p>\n\n\n\n
Vous pouvez taper la commande suivante :<\/p>\n\n\n\n
netstat -lntup<\/strong><\/pre>\n\n\n\n
Dans cet exemple, on peut voir les ports en \u00e9coute pour VNC. En administrateur, avec sudo (Raspberry Pi\/Raspbian) ou en root (Debian), pour afficher plus d\u2019informations.<\/p>\n\n\n\n
sudo netstat -lntup | grep vnc<\/strong><\/pre>\n\n\n\n
\n\n\n\n
Plus d’informations<\/p>\n\n\n\n
https:\/\/debian-facile.org\/doc:reseau:netstat<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Pour savoir quels sont les ports utilis\u00e9s sur un ordinateur sous Linux on peut utiliser la commande ss. Les diff\u00e9rents arguments : -t : affiche les ports TCP -u : affiche les ports UDP -l : affiche les ports en \u00e9coute (affiche par d\u00e9faut les ports en cours d\u2019utilisation) -a : affiche tous les ports […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-168","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/artheodoc.fr\/index.php\/wp-json\/wp\/v2\/pages\/168","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/artheodoc.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/artheodoc.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/artheodoc.fr\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/artheodoc.fr\/index.php\/wp-json\/wp\/v2\/comments?post=168"}],"version-history":[{"count":5,"href":"https:\/\/artheodoc.fr\/index.php\/wp-json\/wp\/v2\/pages\/168\/revisions"}],"predecessor-version":[{"id":176,"href":"https:\/\/artheodoc.fr\/index.php\/wp-json\/wp\/v2\/pages\/168\/revisions\/176"}],"wp:attachment":[{"href":"https:\/\/artheodoc.fr\/index.php\/wp-json\/wp\/v2\/media?parent=168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}