Complete WP Backup

Hello guys,

Recently I decided to backup my blog in my internal webserver. So far I have done the hardest part without problem:

1. Dumped mysql database
2. Imported mysql database to internal database
3. Copied the content of the blog to internal server
4. Configured “wp-config.php” for internal server

Now I can retrieved my blog from my internal server but all the links are pointing to my external domain. How would I go about pointing all the links to the internal server instead? Modify line by line in the database is out of the question.

I notice that all the links go http://www.techiblog.com/blahblah

I just need to replace that with http://192.168.2.20/blahblah

Thanks