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I running CentOS release 5.8 (Final) for my WordPress blog (www.deluxeblogtips.com). I have a backup plugin BackupBuddy, and it says:

HTTP Loopback Connections are not enabled on this server

After some tries on Google, I found some solutions, but none work. The best answer I think is changing the /etc/hosts file, and I already did that:

127.0.0.1 localhost localhost6 localhost.localdomain localhost6.localdomain6
127.0.0.1 taiphanmem.org www.taiphanmem.org
127.0.0.1 deluxeblogtips.com www.deluxeblogtips.com
::1       localhost localhost6 localhost.localdomain localhost6.localdomain6
::1       deluxeblogtips.com www.deluxeblogtips.com
::1       taiphanmem.org www.taiphanmem.org

But the warning from the plugin still appears.

I also tested in command line:

wget www.deluxeblogtips.com
curl www.deluxeblogtips.com
telnet 0 80

All work.

I don't know what's right now. My blog is running slow, and I guess the HTTP loopback connection is the main problem. Any help is appreciated! Thanks!

Edit:

More information about the web server (Apache)

Listen 80

And

apachectl -S
VirtualHost configuration:
wildcard NameVirtualHosts and _default_ servers:
*:80                   is a NameVirtualHost
         default server taiphanmem.org (/usr/local/apache/conf/extra/httpd-vhosts.conf:2)
         port 80 namevhost taiphanmem.org (/usr/local/apache/conf/extra/httpd-vhosts.conf:2)
         port 80 namevhost deluxeblogtips.com (/usr/local/apache/conf/extra/httpd-vhosts.conf:9)
Syntax OK

(I host some other sites on the server as well, default is taiphanmem.org)

share|improve this question
Just edit my question with added information. – I'm a Aug 24 '12 at 17:53
This question would probably do better on our dedicated Wordpress Site -- I can move it there if you would like, but it doesn't seem to be on-topic for Server Fault... – voretaq7♦ Aug 24 '12 at 18:17
@voretaq7 I don't think so. I'm an active member at WPSE. And I believe that this problem is related with server than WordPress. – I'm a Aug 24 '12 at 19:04
Is your server behind NAT? If so, it sounds like it's behind crappy consumer NAT and not server-grade NAT. – David Schwartz May 13 at 3:48

2 Answers

up vote 0 down vote

Did you tried looking at

http://ithemes.com/codex/page/BackupBuddy:_Frequent_Support_Issues#HTTP_Loopback_Connections_Disabled

share|improve this answer
1  
I tried, no luck. That solution just enables the alternative WP cronjob, which doesn't solve the problem with server. I'm looking for a real solution. – I'm a Aug 24 '12 at 17:48
up vote 0 down vote

Here is the simple article that help you guys http://www.fun2friend.com/topic/66127-enable-http-loopback-connections-for-backupbuddy/

share|improve this answer
Good article. Could you maybe incorporate some of the details from the article into your answer. Typically we like to see answers that can stand on their own, in cases where the site they link to goes away. Without the other site your answer becomes somewhat useless. – slm May 15 at 18:19

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