could some explain to /etc/aliases - users - Fedora Mailing-Lists

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could some explain to /etc/aliases

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Technical

Wednesday, 31 December 2003 Wed, 31 Dec '03

2:13 p.m.

what is being forwared to what? what are rules? mailer-daemon: postmaster postmaster: root

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adam lanier

Wednesday, 31 December Wed, 31 Dec

2:18 p.m.

On Wed, 2003-12-31 at 15:13, technical wrote:

what is being forwared to what? what are rules? mailer-daemon: postmaster postmaster: root

Basically, an entry on the left hand side gets replaced by the entry (or entries) on the right hand side. In the example above, a message addressed to 'mailer-daemon' gets replaced by 'postmaster' which, in turn, gets replaced by 'root'. man aliases for more details.

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Chuck Mize

2:19 p.m.

On Wed, 2003-12-31 at 12:13, technical wrote:

what is being forwared to what? what are rules? mailer-daemon: postmaster postmaster: root

All mail for mailer-daemon is being forwarded to postmaster and in turn all mail for postmaster is being forwarded to your root user.

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James Kosin

2:35 p.m.

----- Original Message ----- From: "technical" <technical(a)sojourn.dyndns.org> To: <fedora-list(a)redhat.com> Sent: Wednesday, December 31, 2003 3:13 PM Subject: could some explain to /etc/aliases | what is being forwared to what? what are rules? | | mailer-daemon: postmaster | postmaster: root | | <snip> Any mail for mailer-daemon will go to postmaster. Any mail for postmaster will go to root. This is a fairly standard alias file. You can setup a user called xxyyzz and have an email alias for him such as GeorgeCluney. So that anyone who emails GeorgeCluney@.... will actaully go to xxyyzz@.... Lookup the use of addalias for more details. James Kosin

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Robert P. J. Day

Thursday, 1 January Thu, 1 Jan

2:41 a.m.

On Wed, 31 Dec 2003, James Kosin wrote:

----- Original Message ----- From: "technical" <technical(a)sojourn.dyndns.org> To: <fedora-list(a)redhat.com> Sent: Wednesday, December 31, 2003 3:13 PM Subject: could some explain to /etc/aliases | what is being forwared to what? what are rules? | | mailer-daemon: postmaster | postmaster: root | | <snip> Any mail for mailer-daemon will go to postmaster. Any mail for postmaster will go to root. This is a fairly standard alias file. You can setup a user called xxyyzz and have an email alias for him such as GeorgeCluney. So that anyone who emails GeorgeCluney@.... will actaully go to xxyyzz@....

it's possible that the original poster was asking a deeper question, which was whether aliases were transitive. that is, it's legal to have aliases defined in terms of other aliases.

Lookup the use of addalias for more details.

you probably meant "newaliases", not "addalias". rday

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Don

Wednesday, 31 December Wed, 31 Dec

5:32 p.m.

On Wed, 2003-12-31 at 12:13, technical wrote:

what is being forwared to what? what are rules? mailer-daemon: postmaster postmaster: root

The left name is an alias for the name on the right. The names are resolved until there are no ambiguities. There's a limit to the number of "redirections" or "depth" of aliases... I think the limit is 10. Effectively the above shows mailer-daemon is an alias for "root". This is determined by any thing sent to mailer-daemon will be sent to "postmaster".... anything sent to postmaster (including stuff sent to mailer-daemon) will be sent to "root". So, with only these two aliases, all mail sent to "mailer-daemon", "postmaster" and "root" will be delivered to "root". Nice thing is you can add a new alias so mail directed to root is directed to a non-privileged user. Just add "root: <username>" to the aliases file.

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Matt H

5:49 p.m.

On Wed, 2003-12-31 at 13:13, technical wrote:

what is being forwared to what? what are rules? mailer-daemon: postmaster postmaster: root

To followup on what others have already mentioned, also look at 'man aliases' for more information regarding this file.

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adam lanier
Chuck Mize
Don
James Kosin
Matt H
Robert P. J. Day
Technical