I have build a new e-com site for a client and need to create some redirects of the old URLs to the new ones. Can I use an "alias"? I tried to enter one... but I just get an Apache 404 error.

Hello,

Yes the Alias can be used for this. What alias have you entered?

Best regards,
ARTIO Support Team

Again, I have built a replacement site in Joomla and the old one was a ".NET" e-comm package. So all of the pages end in the extension ".aspx". This might have something to do with the ".htaccess" file as well?

Here's one example:

Old:
/c-10-34-inch-thick-round-glass-table-tops.aspx

New:
/shop/round-glass-table-tops/3-4-inch-thick-round-glass

Thanks,
CV

Yes, this is probably caused by the .htaccess. Find this line:

RewriteCond %{REQUEST_URI} (/|\.php|\.html|\.htm|\.feed|\.pdf|\.raw|/[^.]*)$ [NC]

And change it to:

RewriteCond %{REQUEST_URI} (/|\.php|\.html|\.htm|\.feed|\.pdf|\.raw|\.aspx|/[^.]*)$ [NC]

You can add any other extension to be processed by JoomSEF to that line.

Best regards,
ARTIO Support Team

Perfect! That worked.
CV

Is it better for me to use the 301 redirects... that way I don't loose all of my redirect entries if the standard SEF URLs get purged and have not been locked? The aliases get lost during a purge, correct?