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AWS EC2: hostname reverts to xxxxxx.ec2.internal on boot. Is it a problem?

Discussion in 'Bind / DNS / Nameserver Issues' started by pandalion98, May 2, 2016.

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  1. pandalion98

    pandalion98 Registered

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    I've tried different methods to make the hostname permanent including but not limited to changing /etc/sysconfig/network, using the hostname command, and using the "change hostname" feature within WHM. It reverts back to EC2's default format "ip-123-123-123-123.ec2.internal".

    It doesn't seem to hurt anything. All of my sites still work and WHM/cPanel is still fully accessible.

    Should I just leave it like that or should I make the hostname the same as the address I use to access it (server.domain.com)?

    Some system info:
    Code:
    grep '' /etc/redhat-release /usr/local/cpanel/version /var/cpanel/envtype ; grep CPANEL= /etc/cpupdate.conf ; httpd -v ; php -v ; mysql -V
    
    /etc/redhat-release:CentOS Linux release 7.2.1511 (Core)
    /usr/local/cpanel/version:11.56.0.9
    /var/cpanel/envtype:xen hvm
    CPANEL=release
    Server version: Apache/2.4.18 (Unix)
    Server built:   Apr  9 2016 10:23:37
    Cpanel::Easy::Apache v3.32.12 rev9999
    PHP 5.6.20 (cgi-fcgi) (built: Apr  9 2016 10:27:21)
    Copyright (c) 1997-2016 The PHP Group
    Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies
        with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies
    mysql  Ver 14.14 Distrib 5.6.30, for Linux (x86_64) using  EditLine wrapper
     
  2. cPanelMichael

    cPanelMichael Forums Analyst
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  3. pandalion98

    pandalion98 Registered

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    The weird hostname was causing havoc on the mail system. Therefore, ignoring the hostname is NOT okay. However, it has been resolved in a recent ticket.

    Here's what he instructed me to do:
    And the hostname doesn't change now.
     
  4. cPanelMichael

    cPanelMichael Forums Analyst
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