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Old 04-13-2004, 10:12 PM   #1
Registered: Oct 2003
Location: Cincinnati, OH
Distribution: Ubuntu 12.04
Posts: 145

Rep: Reputation: 16
postfix: fatal: gethostbyname: No such file or directory

First, I apologize if this has been asked to death. I've checked Google and searched this site, but nothing has really applied. I hope someone has a good answer for this because I sure can't figure it out!

I have installed Gentoo through the internet according to their handbook, and so far so good except for one thing. When I try to run postfix check, I get the message of the subject heading. I've set /etc/hosts to read localhost (my personal computer domain, not at all linked to any DNS server anywhere, just a domain I want to use to send mail using postfix)

As instructed by the Gentoo handbook I did "echo 'schoenberg' > /etc/hostname" which set my hostname to "schoenberg". Then I did "echo '' > /etc/dnsdomainname" which in theory should have set my dns domain name for use with Postfix, etc.

However, postfix doesn't work as you can see. When I type "hostname -f" I get

$ hostname -vf
Resolving `' ...
hostname: Unknown host

In order to fix it I tried setting hostname to "", but that gives me a similar error message when I say "hostname -f". Oh, and postfix check still fails.

Now, I know this is likely because there is no known host on the DNS server I'm using that uses that name, but this didn't seem to be a problem with some other distros I've used as they let me use Postfix just fine. Is there a postfix setting that isn't working, is there something I'm overlooking? How do I setup postfix so it will work in this scenario where I haven't purchased a domain name (I don't need to, I just want to be able to send mail as a mailserver, not to receive it)?

I'm including the contents of for your perusal. Thanks for the help.

(output of 'less /etc/postfix/ | grep -v "#"):

debug_peer_level = 2

debugger_command =
xxgdb $daemon_directory/$process_name $process_id & sleep 5

sendmail_path = /usr/sbin/sendmail

newaliases_path = /usr/bin/newaliases

mailq_path = /usr/bin/mailq

setgid_group = postdrop

manpage_directory = /usr/share/man

sample_directory = /usr/share/doc/postfix-2.0.19/sample

readme_directory = /usr/share/doc/postfix-2.0.19/readme
default_destination_concurrency_limit = 2
alias_database = hash:/etc/mail/aliases
local_destination_concurrency_limit = 2
alias_maps = hash:/etc/mail/aliases

Last edited by cellist; 04-13-2004 at 10:15 PM.
Old 04-15-2004, 01:42 PM   #2
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Registered: Dec 2000
Location: Gothenburg, SWEDEN
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I think you will have to set your hosts file to schoenberg
Old 04-16-2004, 09:21 PM   #3
Registered: Oct 2003
Location: Cincinnati, OH
Distribution: Ubuntu 12.04
Posts: 145

Original Poster
Rep: Reputation: 16
Thank you, I tried that and it worked perfectly! Seems so silly... Live and learn I suppose.


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