FC5 boot process, sendmail and sm_client???

[Deepak Shrestha]

Thanks for the info but I need to know more about this stuff. its
completely confusing for me. I will research and give it try.

Thanks

On 7/12/06, Garry T. Williams <gtwilliams at gmail.com> wrote:
> On Tuesday 11 July 2006 11:51, Deepak Shrestha wrote:
> > My fedora 5 installation is working fine except some annoying boot
> > time. During boot, when it reaches the part of starting sendmail it
> > takes about 2 minutes and another 1 minute for the sm_client.
>
> This is probably (as pointed out by Paul) a name resolution issue.
> The problem occurs when sendmail tries to determine its fully-
> qualified DNS name.  If your system is on a DSL, cable, or dial-up
> connection, then this is futile.  Even if the ISP provides the name,
> it won't be what you want on mail sent by your system.  So you have to
> "fool" sendmail by telling a bit of a lie.
>
> First, you need to install sendmail-cf, if you do not already have it
> installed:
>
>     $ sudo yum install sendmail-cf
>
> Next, you need to reconfigure sendmail.  This involves editing the
> /etc/mail/sendmail.mc file and then regenerating its configuration
> file from that file and then restarting sendmail.  We need to tell
> sendmail its fully-qualified DNS name, have it masquerade all mail
> from your system as if it were originating from your ISP's domain,
> tell it not to probe your system's network interfaces for their DNS
> names, and probably tell it to use your ISP's mail server as a smart
> relay instead of attempting to deliver mail directly.
>
> (This last bit is necessary because a lot of admins configure their
> mail systems to refuse mail from IP addresses that "live" on ISP DSL
> and dial-up networks.  This prevents zombie mail relays, operated by
> spammers, from sending mail.)
>
> This procedure will vary a bit from system to system, but I'll show
> you my configuration so you can get the general idea.  Google will
> help find a more thorough procedure.
>
> /etc/mail/senmail.mc
> --------------------
>
>     $ diff -u sendmail.mc.rpmnew sendmail.mc
>     --- sendmail.mc.rpmnew  2006-02-17 12:05:53.000000000 -0500
>     +++ sendmail.mc 2006-07-12 06:39:40.000000000 -0400
>     @@ -19,7 +19,7 @@
>      dnl # Uncomment and edit the following line if your outgoing mail needs to
>      dnl # be sent out through an external mail server:
>      dnl #
>     -dnl define(`SMART_HOST',`smtp.your.provider')
>     +define(`SMART_HOST',`[mail.bellsouth.net]')
>      dnl #
>      define(`confDEF_USER_ID',``8:12'')dnl
>      dnl define(`confAUTO_REBUILD')dnl
>     @@ -153,11 +153,13 @@
>      dnl # The following example makes mail from this host and any additional
>      dnl # specified domains appear to be sent from mydomain.com
>      dnl #
>     -dnl MASQUERADE_AS(`mydomain.com')dnl
>     +MASQUERADE_AS(`bellsouth.net')dnl
>      dnl #
>      dnl # masquerade not just the headers, but the envelope as well
>      dnl #
>     -dnl FEATURE(masquerade_envelope)dnl
>     +FEATURE(masquerade_envelope)dnl
>     +FEATURE(`allmasquerade')dnl
>     +FEATURE(`always_add_domain')dnl
>      dnl #
>      dnl # masquerade not just @mydomainalias.com, but @*.mydomainalias.com as well
>      dnl #
>     @@ -167,6 +169,8 @@
>      dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl
>      dnl MASQUERADE_DOMAIN(mydomainalias.com)dnl
>      dnl MASQUERADE_DOMAIN(mydomain.lan)dnl
>     +define(`confDONT_PROBE_INTERFACES', `True')dnl
>     +define(`confDOMAIN_NAME', `tfr.bellsouth.net')dnl
>      MAILER(smtp)dnl
>      MAILER(procmail)dnl
>      dnl MAILER(cyrusv2)dnl
>     $
>
> Since you lied to sendmail about your system's fully-qualified DNS
> name, you need to provide a local name service for that name.  You do
> this by adding the name to your /etc/hosts file:
>
>     $ grep tfr /etc/hosts
>     127.0.0.1       localhost       tfr     dspam   tfr.bellsouth.net
>     $
>
> You also need to add your login ID to the /etc/mail/virtusertable file
> so that outbound mail from you will be rewritten as having come from
> your ISP mail account:
>
>     $ cat virtusertable
>     garry   <my_isp_user_id>@bellsouth.net
>     root    <my_isp_user_id>@bellsouth.net
>     $
>
> (Substitute your ISP mail account user ID for the `<my_isp_user_id>'
> in the above.)
>
> Add any other local users (and their ISP mail account user IDs) you
> have on your system to this file so that they get their outbound mail
> rewritten as well.
>
> Now you need to regenerate your senmail.cf file from the updated
> senmail.mc file and create the virtusertable database file.  This is
> easy because a make file will automatically do that for you:
>
>     $ sudo make -C /etc/mail/Makefile
>
> Finally, tell sendmail to restart with its new configuration:
>
>     $ sudo service sendmail restart
>
> --
> Garry T. Williams --- +1 678 656-4579
>
>
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