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Documentation Concerning Migration from Linode to AWS

General Notes

  • I killed the Wordpress service because I never used it and MoinMoin was serving me well for what I wanted (a place to throw my ideas) anyways.

AMI Used and Dependencies I needed to install

I used a fresh CentOS 7 AMI: ami-2051294a. wget was not installed, nor was vim (yum install wget vim). Wanted to install htop too, but EPEL repos not available. Followed instructions to get EPEL from here. Step 3 is incorrect- rpm –ivh epel-release-7-5.noarch.rpm should be rpm epel-release-7-5.noarch.rpm -ivh for some befuddling reason lost to the depths of time. The former command will print a help screen; the latter does what it's supposed to do.

Apache Migration Notes

Ran yum install httpd. Removed default default /etc/httpd. rsync'd /etc/httpd from old VPS. Had to remove PHP config files left from Wordpress (rm /etc/httpd/conf.modules.d/10-php.conf ; rm /etc/httpd/conf.d/php.conf). Cloned main branch of this repo into /var/www/html.

MoinMoin Migration Notes

I re-installed MoinMoin 1.9.8 on the AMI (also wsgi; yum install wsgi). Removed default /usr/local/share/moin and rsync'd /usr/local/share/moin from old VPS. The AWS AMI has SELinux enabled by default. This caused some issues with MoinMoin being able to open up the data directory. See here for resolution. Started Apache (service start httpd).

Primitive Backup

Migrated primitive backup scripts and last 10 backups to /usr/local/bin/backup. Created a dedicated user with passwordless ssh for so that I can rsync tar'd backups directly to my home computer nightly using a cronjob. Added the following line to root's crontab:

35 20 * * 0,4 /usr/local/bin/backup/bin/

This backup system is very rudimentary and exists as it does primarily because I don't want to spend more money on this than it is worth. It's mostly so that the Wiki doesn't get totally zapped if something happens to the Amazon instance. I can always start using snapshots if this gets more serious (and/or if I have more disposable income).


  • Updated DNS entry to point to new IP address.
  • Archived home directories to home laptop (these looked like trash, but I decided to keep them at least for a bit as a precaution).