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I'm using an AWS EC2 micro instance to run a wordpress blog.

I've successfully mapped a subdomain to the Elastic IP for the micro instance. After a few minor changes, the URL I mapped to the Elastic IP (blog.example.com) opens up the wordpress home page but whenever I click on any of the wordpress links the domain changes to the AWS public DNS for that instance (http://ec2-123-45-678-910.compute-1.amazonaws.com/wordpress/).

How do I fix the URLs so that they all follow the subdomain I have setup?

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2 Answers

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I used to following command to apply the host name change to the machine. 

sudo /opt/bitnami/updateip --machine_hostname blog.example.com

After that the URLs were fixed.

If using a Bitnami AMI, be sure to modify the updateip file in /opt/bitnami/ to something like updateip.orig. This prevents the hostname from being changed on reboot.

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That might not stick after a reboot, though. EC2 automatically updates the machine's hostname, because it can change when the server is restarted. – ceejayoz May 2 at 14:22
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I think that there's a setting in wordpress that forces the base address of links. Or you can rewrite the servername in webserver.

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Thanks, @theist. I ended up using am 'updateip' tool that was included in the install. I believe this went into the mysql database and made the necessary changes. Now the URLs look like they should (except for the '/wordpress' which I am still trying to get rid of). – Benjamin Nov 14 '11 at 16:39
sudo /opt/bitnami/updateip --machine_hostname blog.example.com – Benjamin Nov 14 '11 at 16:42
Offtopic: Thanks? Reward the useful answers with upvotes and select one if it's a good solution. If you have the correct solution answer your own question, this improves the site :) – theist Nov 22 '11 at 11:16
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