Hola,
> Hola tengo un problema con SMTP, configure postfix como MTA, lo
> comprobe y funciona bien, pero tiene el problema que no se deja dar un
> telnet por ejemplo, cuando pongo esto telnet 192.168.10.1 25 me da
> refused y al poner telnet localhost 25 funciona ok, y ese si es un
> gran problema, porque cuando vaya a configurar el correo para las
> estaciones de trabajo "No way", a ver mas informacion, no uso
> iptables, no firewall, ya que solo estoy en una fase de prueba,
> alguien tiene idea de que puede ser???, aqui les pego las conf
>
> este es el main.cf
>
> alias_database = hash:/etc/aliases
> alias_maps = hash:/etc/aliases
> append_dot_mydomain = no
> biff = no
> command_directory = /usr/sbin
> config_directory = /etc/postfix
> daemon_directory = /usr/lib/postfix
> delay_warning_time = 4h
> inet_interfaces = loopback-only
> mailbox_command = procmail -a "$EXTENSION"
> mailbox_size_limit = 0
> mydestination = $mydomain, localhost.$mydomain, localhost
> mydomain = cav.rivendel.cu
> myhostname = cav.rivendel.cu
> mynetworks = 192.168.10.0/24, 127.0.0.0/8
> mynetworks_style = subnet
> myorigin = /etc/mailname
> recipient_delimiter = +
> smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
>
> este es el master.cf
>
> #
> # Postfix master process configuration file. Each logical line
> # describes how a Postfix daemon program should be run.
> #
> # A logical line starts with non-whitespace, non-comment text.
> # Empty lines and whitespace-only lines are ignored, as are comment
> # lines whose first non-whitespace character is a `#'.
> # A line that starts with whitespace continues a logical line.
> #
> # The fields that make up each line are described below. A "-" field
> # value requests that a default value be used for that field.
> #
> # Service: any name that is valid for the specified transport type
> # (the next field). With INET transports, a service is specified as
> # host:port. The host part (and colon) may be omitted. Either host
> # or port may be given in symbolic form or in numeric form. Examples
> # for the SMTP server: localhost:smtp receives mail via the loopback
> # interface only; 10025 receives mail on port 10025.
> #
> # Transport type: "inet" for Internet sockets, "unix" for UNIX-domain
> # sockets, "fifo" for named pipes.
> #
> # Private: whether or not access is restricted to the mail system.
> # Default is private service. Internet (inet) sockets can't be private.
> #
> # Unprivileged: whether the service runs with root privileges or as
> # the owner of the Postfix system (the owner name is controlled by the
> # mail_owner configuration variable in the main.cf file). Only the
> # pipe, virtual and local delivery daemons require privileges.
> #
> # Chroot: whether or not the service runs chrooted to the mail queue
> # directory (pathname is controlled by the queue_directory configuration
> # variable in the main.cf file). Presently, all Postfix daemons can run
> # chrooted, except for the pipe, virtual and local delivery daemons.
> # The proxymap server can run chrooted, but doing so defeats most of
> # the purpose of having that service in the first place.
> # The files in the examples/chroot-setup subdirectory describe how
> # to set up a Postfix chroot environment for your type of machine.
> #
> # Wakeup time: automatically wake up the named service after the
> # specified number of seconds. A ? at the end of the wakeup time
> # field requests that wake up events be sent only to services that
> # are actually being used. Specify 0 for no wakeup. Presently, only
> # the pickup, queue manager and flush daemons need a wakeup timer.
> #
> # Max procs: the maximum number of processes that may execute this
> # service simultaneously. Default is to use a globally configurable
> # limit (the default_process_limit configuration parameter in main.cf).
> # Specify 0 for no process count limit.
> #
> # Command + args: the command to be executed. The command name is
> # relative to the Postfix program directory (pathname is controlled by
> # the daemon_directory configuration variable). Adding one or more
> # -v options turns on verbose logging for that service; adding a -D
> # option enables symbolic debugging (see the debugger_command variable
> # in the main.cf configuration file). See individual command man pages
> # for specific command-line options, if any.
> #
> # General main.cf options can be overridden for specific services.
> # To override one or more main.cf options, specify them as arguments
> # below, preceding each option by "-o". There must be no whitespace
> # in the option itself (separate multiple values for an option by
> # commas).
> #
> # In order to use the "uucp" message tranport below, set up entries
> # in the transport table.
> #
> # In order to use the "cyrus" message transport below, configure it
> # in main.cf as the mailbox_transport.
> #
> # SPECIFY ONLY PROGRAMS THAT ARE WRITTEN TO RUN AS POSTFIX DAEMONS.
> # ALL DAEMONS SPECIFIED HERE MUST SPEAK A POSTFIX-INTERNAL PROTOCOL.
> #
> # DO NOT SHARE THE POSTFIX QUEUE BETWEEN MULTIPLE POSTFIX INSTANCES.
> #
> #
> =========================================================================#
> service type private unpriv chroot wakeup maxproc command + args
> # (yes) (yes) (yes) (never) (100)
> #
> =========================================================================smtp
> inet n - - - - smtpd
> #submission inet n - - - - smtpd
> # -o smtpd_etrn_restrictions=reject
> #628 inet n - - - - qmqpd
> pickup fifo n - - 60 1 pickup
> cleanup unix n - - - 0 cleanup
> qmgr fifo n - - 300 1 qmgr
> #qmgr fifo n - - 300 1 oqmgr
> rewrite unix - - - - - trivial-rewrite
> bounce unix - - - - 0 bounce
> defer unix - - - - 0 bounce
> trace unix - - - - 0 bounce
> verify unix - - - - 1 verify
> flush unix n - - 1000? 0 flush
> proxymap unix - - n - - proxymap
> smtp unix - - - - - smtp
> relay unix - - - - - smtp
> # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
> showq unix n - - - - showq
> error unix - - - - - error
> local unix - n n - - local
> virtual unix - n n - - virtual
> lmtp unix - - n - - lmtp
> anvil unix - - n - 1 anvil
> #
> # Interfaces to non-Postfix software. Be sure to examine the manual
> # pages of the non-Postfix software to find out what options it wants.
> #
> # maildrop. See the Postfix MAILDROP_README file for details.
> #
> maildrop unix - n n - - pipe
> flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient}
> uucp unix - n n - - pipe
> flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail
> ($recipient)
> ifmail unix - n n - - pipe
> flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
> bsmtp unix - n n - - pipe
> flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -d -t$nexthop
> -f$sender $recipient
> scalemail-backend unix - n n - 2 pipe
> flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store
> ${nexthop} ${user} ${extension}
>
> # only used by postfix-tls
> #tlsmgr fifo - - n 300 1 tlsmgr
> #smtps inet n - n - - smtpd -o
> smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes
> #587 inet n - n - - smtpd -o
> smtpd_enforce_tls=yes -o smtpd_sasl_auth_enable=yes
>
> gracias de antemano
>
> Bismark
>
>
revisa esta linea "inet_interfaces = loopback-only"
cambia loopback-only por all
saludos cordiales,
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