This page has some background information on making backups and explains some basic *nix backup and restore procedures.
Introduction
Your wiki installation contains some unique data in the following directories:
local/ Local configuration scripts
cookbook/ Recipes obtained from the Cookbook
pub/ Publicly accessible files
wiki.d/ Wiki pages
uploads/ Uploaded files (attachments)
A good backup plan will include periodically archiving these directories — or at bare minimum local/ and wiki.d/. Good practice dictates keeping your backup archives on a separate machine.
Simple Backup and Restore (*nix)
When it comes to backup, simpler is better.
Since the pmwiki distribution is very small (about 1/4 megabyte), it's simplest to just archive the distribution files along with the data.
Making a Backup Archive
The following *nix command, executed from the parent directory of your wiki's directory, will put a complete backup archive of your site in your home directory.
tar -zcvf ~/wiki-backup-`date +%Y%m`.tar.gz wiki/
Restoring the Backup Archive
Simple Method
Your site can be restored and running in under 30 seconds with
tar -zxvf ~/wiki-backup-200512.tar.gz
find wiki/uploads/ -type d |xargs chmod 777
find wiki/wiki.d/ -type d |xargs chmod 777
A Slightly-More-Secure Method
The simple restore commands above will give you world-writable files and directories. You can avoid world-writable permissions by letting PmWiki create directories with the proper attributes (ownership and permissions) for you.
Start with
tar -zxvf ~/wiki-backup-200512.tar.gz
rm -rf wiki/wiki.d
rm -rf uploads
chmod 2777 wiki/
Now upload a file in each group that had uploads. If your site doesn't have uploads, just visit your site once so the wiki.d/ directory will be created.
Finish your installation with
chmod 755 wiki/
tar -zxvf ~/wiki-backup-200512.tar.gz
Details
The commands on this page assume your site is in a directory called "wiki/". The test backup was made in December, 2005 so it's named accordingly.
Your site will only have an uploads/ directory if uploads are enabled.
The backup command uses a date stamp (YYYYMM) in the filename. If you automate the command via cron you'll wind up with monthly snapshots of your site. You can get a daily snapshot by appending %d to the date command (`date +%Y%m%d` will get you YYYYMMDD). Be wary of space limitations if you have a large uploads/ directory.
Miscellaneous
Backup via FTP
Download and install a ftp client like Filezilla
- Using the ftp client connect to the server where you host PmWiki using
- the IP address (ex: 123.234.56.67) or the ftp name (ex: ftp.myhost.com)
- supply your account name (ex: mylogin) and password (ex: myp4ssw0rd)
- Move to your pmWiki directory (ex:
/usr/mylogin/web/wiki/ or /tahi/public_html/pmwiki )
- Select the folder you want to backup as explained before (probably either only the data or the whole wiki directory)
- for data you will want to backup both the directories
wiki.d for user page data
pmwikiuploads (or uploads) for your attachments (uploads)
- for system you will want, at a minimum, to backup both the directories
local for configuration data
pub for local CSS and skins customisations
- Download them to a local folder
- Use 7zip or a similar software to build an archive of this backup
You can also very easily sync your FTP directories with your hard disc via this command line:
wget -nv -np -m ftp://user:password@ftp.yourhost.net/
Download Wget for Windows (other systems normally have it installed).
Alternatively, you can also mirror your FTP directories with lftp:
lftp -u your_user_name,your_password -e "mirror --verbose /wiki.d /path/to/local/folder" ftp://your_host
(this will mirror only the /wiki.d folder, replace with / to mirror everything)
Using rsync
See Cookbook:BackupWithRsync and Cookbook:TwoWayMirroringWithRsync.
See Also
