Difference between revisions of "Instalation Null Client in Debian"
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'''Sendmail Null Client (Debian)''' | '''Sendmail Null Client (Debian)''' | ||
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== Installation == | == Installation == | ||
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{{Command|<nowiki>aptitude install sendmail</nowiki>}} | {{Command|<nowiki>aptitude install sendmail</nowiki>}} | ||
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== Setting-up == | == Setting-up == | ||
| + | ''Replace ${ADMIN_EMAIL}, ${HOSTNAME}, ${DNS_DOMAIN}, ${IP_ADDR} for the adequate values'' | ||
| + | Redirect messages from root, postmaster, admin, etc, to the administrator of the machine. | ||
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Editar /etc/mail/aliases | Editar /etc/mail/aliases | ||
Revision as of 21:39, 4 September 2014
Back to Mail server
Sendmail Null Client (Debian)
Installation
Setting-up
Replace ${ADMIN_EMAIL}, ${HOSTNAME}, ${DNS_DOMAIN}, ${IP_ADDR} for the adequate values Redirect messages from root, postmaster, admin, etc, to the administrator of the machine.
Editar /etc/mail/aliases
(...)
operator: root
admin: root
root: ${ADMIN_EMAIL}
Actualizar base de datos de aliases:
/usr/sbin/newaliases
Verificar que el sendmail conoce los distintos nombres que puede tener el cliente
Editar /etc/mail/local-host-names
localhost
localhost.localdomain
${HOSTNAME}
${HOSTNAME}.${DNS_DOMAIN}
Verificar que el host aparece en /etc/hosts
${IP_ADDR} ${HOSTNAME}.${DNS_DOMAIN} ${HOSTNAME}
Editar /etc/mail/sendmail.mc
(...)
dnl #
dnl # Masquerading options
FEATURE(`always_add_domain')dnl
MASQUERADE_AS(`${HOSTNAME}.${DNS_DOMAIN}')dnl
FEATURE(`allmasquerade')dnl
FEATURE(`masquerade_envelope')dnl
dnl #
dnl # Default Mailer setup
MAILER_DEFINITIONS
MAILER(`local')dnl
MAILER(`smtp')dnl
Activar la nueva configuración
yes | sendmailconfig
Seguridad
Por omisión Debian instala sendmail habilitado solo para localhost
Si se usan tcp-wrappers, se debe agregar una línea similar a la siguiente en
/etc/hosts.allow
sendmail: 127.0.0.1
Si se usan otros filtros se debe permitir el acceso al puerto localhost:25/tcp desde localhost:>1025/tcp
Limpieza (opcional)
Eliminar el ssmtp
aptitude remove ssmtp
Si la configuración DNS no está definida en /etc/network/interfaces, eliminar el resolvconf
aptitude remove resolvconf
