Re: Postfix Configuration

[ricky@learnautomation.com]

Thanks for the input, Jeff...  I'll definitely experiment with those
recommendations when I get back home.  You cleared up some conceptual
errors I had.

Before I go too far with this server, I am definitely interested in the
reasons why you set VPSLink aside, and am wondering if you have any
suggestions for better alternatives.  It would be neat to have a VPS box
with an IPV6 address for more experimentation if you know anyone who has
that option available.   This is the first time I've tried VPSLink, and
I'm using the XEN hypervisor.  I tried OpenVZ, but quickly learned (within
hours) that wasn't going to work out for me as well as XEN.

The great thing is that there is no rush for this project.  My company is
currently on a shared hosting plan which will work fine until we figure
out the best route to take.  I'm definitely open for ideas if anyone knows
better options for the price.   I've done a lot of PHP work on the site,
and some of the scripts are slow to run on the current server, so we are
looking for something with "more guaranteed" resources.

Take care,

Ricky Bryce

> ricky@learnautomation.com wrote:
>> I bought one of the virtual servers at vpslink.com.  I'm very happy with
>> it, and right now am running Link (package) 2 with 5 Gigs hdd space, and
>> 128 Megs of RAM.  Accessing the server through Secure shell.  The server
>> is an a LAMP configuration.
>
> Hmm.  I was hosted for a while on VPSLink.  If you're interested, I can
> tell you why I switched off.
>
>> I'm trying to take this issue one step at a time, so the first thing I
>> would like to do is to get postfix to receive mail from
>> ricky@ethernetgateway.com, and map the mail to the rbryce account on the
>> virtual machine.  I'm wanting to use separate mailboxes with system
>> accounts, so I think Aliasing is the way to do this.
>
> Sure.  But "aliasing" could mean a few things.  Postfix has a number of
> ways to do aliases, some for backward-compatibility purposes, and some
> having to do with the architecture of postfix.
>
> Here's a Web page with a list of all the different ways Postfix can
> rewrite addresses:
>
> http://www.postfix.org/ADDRESS_REWRITING_README.html
>
>> Consider a default LAMP configuration with sendmail erased and postfix
>> and
>> dovecot installed.  Also, please consider, this is the first time I've
>> tried to configure postfix.  I do have Webmin installed also, and SSL
>> enabled.
>
> Fedora, I assume?  That could make a difference.
>
>> If I go to main.cf in /etc/postfix/,
>>
>> alias_maps = hash:/etc/aliases is uncommented
>>
>> rbryce is an existing UNIX system user (created by adduser)
>>
>> In /etc/aliases (at the very bottom of the file rbryce:
>> ricky@ethernetgateway.com exists
>
> OK, two problems here.
>
> Minor problem: you usually have to refresh the hash table after editing
> /etc/aliases.  Some distros provide the "newaliases" command, or you can
> do "postmap hash:/etc/aliases".  Then, "postfix reload" so it notices
> the new files immediately.
>
> Major problem: the aliases entry you gave directs all mail for the local
> user "rbryce" to "ricky@ethernetgateway.com".  It sounds like you want
> the exact reverse.  But, as I mentioned before, /etc/aliases is only for
> local usernames, so you can't use /etc/aliases for this unless you want
> "ricky@<anything>" to go to "rbryce".
>
>> I've used the command postconf -e "virtual_alias_domains =
>> ethernetgateway.com
>  >
>> and
>>
>> postconf -e "virtual_alias_maps = hash:/etc/postfix/virtual"
>>
>> To create a map database, I've typed
>>
>> postfix /etc/postfix/virtual
>
> Sure (well, I'm sure you meant to type "postmap" here"), but what did
> you put in /etc/postfix/virtual?
>
> If nothing, then I suspect this is where you're going wrong.  This is
> the file where you tell postfix that "ricky@ethernetgateway.com" is the
> local user "rbryce".
>
>> (restarted postfix)
>>
>> When I go to yahoo, and send a message to my ricky@ethernetgateway.com
>> address, I am not getting a bounce.
>>
>> When I su to rbryce on the server, and type "mail" I get "no mail for
>> rbryce" when I would have expected to receive a message.
>
> Not sure what's going on here (unless Yahoo spam-filtered your bounce).
>   The mail logs should help.  I think it's pretty common to have a
> /var/log/mail.log; if not, and nothing else looks right, check the main
> log (/var/log/messages or /var/log/syslog), and as a last resort check
> /etc/syslog.conf for hints as to where those messages might be going.
>
> You'll want to figure out where those logs are going at any rate; if you
> run your own mail server, those logs will be your salvation on many
> occasions, at least if you're anything like me.
>
>> If anyone could point me in the right direction I would appreciate it...
>> Or even recommend a good web document, it would be appreciated.  Maybe I
>> have some conceptual errors as to how to configure the mail.  Once I get
>> postfix running right, I'll be happy with this server.  (I'm happy
>> already!)
>
> Postfix's web site, postfix.org, is pretty good.  In particular, this
> might help:
>
> http://www.postfix.org/VIRTUAL_README.html
>
>
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