Offensive Security Training presents - The Exploit Database. Bash. Overview and Introduction bash is a shell, a.k.a. command language interpreter for modern computers. It is Bourne shell (sh) compatible and incorporates useful features from the Korn shell (ksh) and C shell (csh). It conforms to the IEEE POSIX P1003.2/ISO 9945.2 Shell and Tools standard. Some of bash's features are, in no particular order: editing and completion; history and command re-entry; job control; shell functions and aliases; arrays; arithmetic; ANSI C quoting; tilde expansion; brace expansion; substring capabilities; indirect variable expansion; expanded I/O capabilities; control of built-in commands; help; directory stack; POSIX mode; internationalisation; command timing. bash is the default shell on all popular GNU/Linux distributions.
Bash is, perhaps, the Linux program you use the most at work, yet how much are you really getting out of it? Bash Tips and Tricks readline Tips and Tricks Programmable Completion Introduction Standard completion Download Installation Getting started .
NAT - Translation d'adresses, port forwarding et port triggering. Août 2017 Principe du NAT Le mécanisme de translation d'adresses (en anglais Network Address Translation noté NAT) a été mis au point afin de répondre à la pénurie d'adresses IP avec le protocole IPv4 (le protocole IPv6 répondra à terme à ce problème). En effet, en adressage IPv4 le nombre d'adresses IP routables (donc uniques sur la planète) n'est pas suffisant pour permettre à toutes les machines le nécessitant d'être connectées à internet. Le principe du NAT consiste donc à utiliser une passerelle de connexion à internet, possédant au moins une interface réseau connectée sur le réseau interne et au moins une interface réseau connectée à Internet (possédant une adresse IP routable), pour connecter l'ensemble des machines du réseau. Il s'agit de réaliser, au niveau de la passerelle, une translation (littéralement une « traduction ») des paquets provenant du réseau interne vers le réseau externe.
Espaces d'adressage Translation statique Translation dynamique Port Forwarding Port Triggering. GNU Squad.
Autonomous system (Internet) Within the Internet, an Autonomous System (AS) is a collection of connected Internet Protocol (IP) routing prefixes under the control of one or more network operators that presents a common, clearly defined routing policy to the Internet.[1] Originally the definition required control by a single entity, typically an Internet service provider or a very large organization with independent connections to multiple networks, that adhere to a single and clearly defined routing policy, as originally defined in RFC 1771.[2] The newer definition in RFC 1930 came into use because multiple organizations can run BGP using private AS numbers to an ISP that connects all those organizations to the Internet.
Even though there may be multiple Autonomous Systems supported by the ISP, the Internet only sees the routing policy of the ISP. That ISP must have an officially registered Autonomous System Number (ASN). A unique ASN is allocated to each AS for use in BGP routing. L'internet rapide et permanent. Blocking Common Web Attacks. Installer sa clé SSH sur un serveur distant. ITworld | IT news, technology analysis and how-to resources.
Gestion:dedibackup2 [Documentation dedibox] DNS. Postfix. The client of the future. NFS. Ip Failover. Hébergement, infogérance et optimisation des performances de Mag.