INTRODUCCION

CBTIS 194 C.D AYALA, MOR **
 * AMARO CARDOSO CELSO GEOVANY 6ª H
 * PROGRAMA: OPEN SSH / SSH **


 *  DIRECCION DE LA DESCARGA: [] **

 OpenSSH es un conjunto de APLICACIONES que permiten realizar comunicaciones cifradas a través de una RED, usando el PROTOCOLO SSH.

Portabilidad Como OpenSSH es una aplicacion de comunicación entre oedenadores debe funcionar en la mayor cantidad de sistemas operativos posibles, para lo que existe un equipo, llamado OpenSSH Portability Team que se responsabiliza de añadir el código necesario para portar el software a todas las plataformas posibles.

Secure Shell es una solución basada en software que mantiene seguros los datos de la red. Muchos usuarios de telnet, rlogin, ftp y otros programas parecidos, no se dan cuenta que sus contraseñas **se están transmitiendo sin cifrar a través de la red**. SSH **cifra todo el tráfico** (incluidas las contraseñas) para eliminar de un modo efectivo las "escuchas", los secuestros de las conexiones y otros ataques a nivel de red. Además, SSH ofrece amplias posibilidades para la creación de túneles seguros, aparte de una variedad de métodos de autenticación. Parece cosa de locos, pero **Secure Shell no es un shell**. No es un interprete, historial de comandos, ni demás. Pero sí hace cosas muy útiles por la seguridad de un sistema en entornos poco confiables. Algunas "features": · Protocolo criptográfico en un modelo cliente/servidor · Autenticación de las más variadas formas: o por contraseña o por host o por sistema de llaves · Integración con sistemas de autenticación como: <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">Kerberos <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">SecurID <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">PGP <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">TIS Gauntlet <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">PAM <span style="font-family: Symbol; font-size: 10pt; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol; mso-fareast-language: ES-SV; msobidifontfamily: Symbol; msofareastfontfamily: Symbol; msofareastlanguage: ES-SV; msolist: Ignore;">· <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">Seguriza los protocolos de aplicación de manera (casi) transparente <span style="font-family: Symbol; font-size: 10pt; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol; mso-fareast-language: ES-SV; msobidifontfamily: Symbol; msofareastfontfamily: Symbol; msofareastlanguage: ES-SV; msolist: Ignore;">· <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">Implementación sobre la mayoría de los sistemas operativos y plataformas <span style="font-family: Symbol; font-size: 10pt; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol; mso-fareast-language: ES-SV; msobidifontfamily: Symbol; msofareastfontfamily: Symbol; msofareastlanguage: ES-SV; msolist: Ignore;">· <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">AIX <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">HP-UX <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">Irix <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">Linux <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">NeXT <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">SCO <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">SNI/Reliant Unix <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">Solaris <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">Digital Unix/Tru64/OSF <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">Mac OS X <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">Cygwin <span style="font-family: 'Courier New'; font-size: 10pt; mso-fareast-font-family: 'Courier New'; mso-fareast-language: ES-SV; msofareastfontfamily: 'Courier New'; msofareastlanguage: ES-SV; msolist: Ignore;">o <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">... y más que van siendo añadidos continuamente.»
 * <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; line-height: 115%; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;">Esta guía se basará en OpenSSH por ser LIBRE y por que muchos sistemas operativos y productos lo tienen integrado al sistema base. **<span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; line-height: 115%; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES-SV;"> Aunque la mayoría de los conceptos son igual de aplicables a las implementaciones propietarias. <span style="font-family: 'BankGothic Md BT','sans-serif'; font-size: 10pt; line-height: 115%;">