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December 26 2013

17:49

Un affichage minimum dans tcpdump

Pour afficher peu d'informations, on peut combiner les options -q (sortie rapide) et -t (non affichage d'un cachet ou référence temporelle en début de ligne).

Ainsi, la commande sudo tcpdump -i [interface] -q -t génère un rendu léger qui ne donne grosso-modo que les adresses IP et ports utilisés :

IP 12.34.56.78.46039 > 55.66.77.88.8945: tcp 0
IP 55.66.77.88.8945 > 12.34.56.78.46039: tcp 12
IP 12.34.56.78.46039 > 55.66.77.88.8945: tcp 0
IP 12.34.56.78.46039 > 55.66.77.88.8945: tcp 5031
IP 12.34.56.78.46039 > 55.66.77.88.8945: tcp 0
IP6 ab90::247:c84f:fe5a:75c6 > ip6-allnodes: ICMP6, router advertisement, length 104
IP 12.34.56.78.46039 > 55.66.77.88.8945: tcp 5031
IP 55.66.77.88.8945 > 12.34.56.78.46039: tcp 0
IP 55.66.77.88.8945 > 12.34.56.78.46039: tcp 381
IP 12.34.56.78.46039 > 55.66.77.88.8945: tcp 0
IP 12.34.56.78.46039 > 55.66.77.88.8945: tcp 5031
IP 55.66.77.88.8945 > 12.34.56.78.46039: tcp 0
IP 97.86.75.64.https > 12.34.56.78.42610: tcp 5031
IP 55.66.77.88.8945 > 12.34.56.78.46039: tcp 0
IP 202.190.179.37.7671 > 12.34.56.78.www: tcp 0
IP 254.203.151.100.mysql > 12.34.56.78.55152: tcp 0
IP 254.203.151.100.mysql > 12.34.56.78.55152: tcp 0

Documentation officielle : https://www.tcpdump.org/tcpdump_man.html .

September 03 2013

17:07

Moserware: The First Few Milliseconds of an HTTPS Connection

Les premières millisecondes d'une connexion à un site web (HTTP) sécurisée par du chiffrement (TLS).

June 28 2013

15:49

Template · Bootstrap

"Ce projet a pour but de créer un réseau téléphonique mobile libre, gratuit et communautaire"

November 29 2012

12:28

lsof - TDC

Sympa comme commande pour observer son trafic réseau (par exemple), en complément de tcpdump (analyse détaillée) et driftnet (images qui transitent en clair).

Exemple :
> sudo lsof -i
affiche toutes les connexion réseaux
> sudo lsof -h
affiche l'aide (en anglais)

February 25 2012

11:40
Inside rules to censor (or not censor) content from Facebook.

November 23 2011

19:10

May 05 2011

10:45

January 25 2011

15:12

January 15 2011

18:53

A New And Maybe Better Way To Stop People From Being Jerks Online

How to build an anti-spam, anti-troll, anti-bad-attitude system for any community, including games and social networks. Via Dionysis Zindros via Gonzague

December 26 2010

09:20

December 13 2010

20:12

August 01 2010

13:27

June 13 2010

16:58

January 20 2010

11:58
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