How to disable WordPress trackback?

Question

I have higher PR as a result of that lots of spammers make trackbacks, everyday I have to delete them.

Those trackbacks will negatively affect my site SEO? How do I disable my site all the posts trackback at once?

I have run following code in my MySQL admin and WotdPress manage DB plugin,, it show me an error.

UPDATE wp_posts SET ping_status='closed' WHERE post_status = 'publish' AND post_type = 'post';

UPDATE wp_posts SET ping_status='closed' WHERE post_status = 'publish' AND post_type = 'page';

Answer 1

This can be solved using the Bulk Edit WordPress functionality.

and

Change the number of items to be shown in Screen Options, so you can select all posts/pages at once.

Two things worth noting in the Q&A pointed by @BartKarp:

• There is the option to turn off trackbacks/pingbacks under Settings > Discussion.

• it has a link to a plugin by @chrisguitarguy. If you want to implement total blockage of trackbacks, use chris'.