How to get high Qlty bias,flat,light & dark frames?

Hi to all,

I ma a newbie in DSLR astrophotography. Just bought a Pentax K100D
super and wish to start my DSLR astrophotography journey. So, the
first question is any good way to get high quality bias, flat, light
and dark frames through DSLR?

Or maybe some special techniques, tips and tricks? Mind to share out?
Any websites that I can point to?

Hope gurus can help me on this.

Regards,

Tommy