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Editorial Team
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Asked: 2026-05-25T10:52:51+00:00

Setting the hostname on an archlinux machine is relatively trivial according to this –

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Setting the hostname on an archlinux machine is relatively trivial according to this – https://wiki.archlinux.org/index.php/HOSTNAME#Set_the_hostname

So on my /etc/rc.conf, I have

LOCALE="en_US.UTF-8" 
TIMEZONE="UTC" 
MOD_AUTOLOAD="no" 
USECOLOR="yes" 
USELVM="no" 
DAEMONS=(syslog-ng sshd crond ec2 httpd) 
HOSTNAME="archlinux"

And corresponding on my /etc/hosts, I have

127.0.0.1       archlinux.domain.org localhost.localdomain      localhost   archlinux

Following the docs to the tee.

But unfortunately, restarting httpd fails with the error in the error_log:

[Tue Sep 06 04:26:06 2011] [alert] (EAI 2)Name or service not known: mod_unique_id: unable to find IPv4 address of "ip-10-130-57-114"

Configuration Failed

And yes, I am aware that from https://wiki.archlinux.org/index.php/Apache#Apache – it is possible to solve this problem by commenting 

LoadModule unique_id_module        modules/mod_unique_id.so

But I would much prefer to solve this problem by keeping this module loaded and resolving it by making sure that I have set my hostname correctly in /etc/hosts instead.

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1 Answer

  1. Editorial Team

    It looks like Apache is using “ip-10-130-57-114” hostname instead of “archlinux”. Have you tried adding this entry into your /etc/hosts file?

    10.130.57.114 ip-10-130-57-114

    * I am guessing 10.130.57.114 is the internal host ip address of you instance.

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