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[ Source: tcptraceroute  ]

Paquet : tcptraceroute (1.5beta7+debian-1)

traceroute implementation using TCP packets

The more traditional traceroute(8) sends out either UDP or ICMP ECHO packets with a TTL of one, and increments the TTL until the destination has been reached. By printing the gateways that generate ICMP time exceeded messages along the way, it is able to determine the path packets are taking to reach the destination.

The problem is that with the widespread use of firewalls on the modern Internet, many of the packets that traceroute(8) sends out end up being filtered, making it impossible to completely trace the path to the destination. However, in many cases, these firewalls will permit inbound TCP packets to specific ports that hosts sitting behind the firewall are listening for connections on. By sending out TCP SYN packets instead of UDP or ICMP ECHO packets, tcptraceroute is able to bypass the most common firewall filters.

Étiquettes: User Interface: Command Line, Network Protocol: IP, TCP, Role: Program, Scope: Utility

Autres paquets associés à tcptraceroute

  • depends
  • recommends
  • suggests
  • dep: libc0.1 (>= 2.7-1) [kfreebsd-amd64, kfreebsd-i386]
    bibliothèque C GNU : bibliothèques partagées
    also a virtual package provided by libc0.1-udeb
  • dep: libc0.3 (>= 2.7-1) [hurd-i386]
    bibliothèque C GNU : bibliothèques partagées
    also a virtual package provided by libc0.3-udeb
  • dep: libc6 (>= 2.5-5) [m68k]
    bibliothèque C GNU : bibliothèques partagées
    also a virtual package provided by libc6-udeb
    dep: libc6 (>= 2.7-1) [not alpha, hurd-i386, ia64, kfreebsd-amd64, kfreebsd-i386, m68k]
  • dep: libc6.1 (>= 2.7-1) [alpha, ia64]
    bibliothèque C GNU : bibliothèques partagées
    also a virtual package provided by libc6.1-udeb
  • dep: libnet1 (>= 1.1.2-1) [not hurd-i386]
    library for the construction and handling of network packets
    dep: libnet1 (>= 1.1.2.1) [hurd-i386]
  • dep: libpcap0.8 (>= 0.9.3-1)
    system interface for user-level packet capture

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Architecture Taille du paquet Espace occupé Fichiers
alpha 32.8 ko124 ko [liste des fichiers]
amd64 31.2 ko120 ko [liste des fichiers]
arm 30.5 ko116 ko [liste des fichiers]
armel 31.5 ko116 ko [liste des fichiers]
hppa 31.8 ko116 ko [liste des fichiers]
hurd-i386 29.8 ko112 ko [liste des fichiers]
i386 29.5 ko116 ko [liste des fichiers]
ia64 38.4 ko152 ko [liste des fichiers]
kfreebsd-amd64 (portage non officiel) 31.5 ko84 ko [liste des fichiers]
kfreebsd-i386 (portage non officiel) 29.8 ko78 ko [liste des fichiers]
m68k 28.8 ko112 ko [liste des fichiers]
mips 31.9 ko124 ko [liste des fichiers]
mipsel 32.0 ko124 ko [liste des fichiers]
powerpc 34.1 ko124 ko [liste des fichiers]
s390 31.9 ko116 ko [liste des fichiers]
sparc 30.7 ko116 ko [liste des fichiers]