Footprinting俗稱“踩點”。是黑客入侵預定目標如伺服器檢測目標有何漏洞蒐集有用信息資訊再最終制定入侵方案的方法之一，另一種一般為掃描。
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腳印拓取，俗稱“踩點”。是黑客入侵預定目標如伺服器檢測目標有何漏洞蒐集有用信息資訊再最終制定入侵方案的方法之一，另一種一般為掃描.
footprinting開始要確定侵入的區域和目標。一旦了解了這些信息，那么關於該組織的特定資料就可以用不進入的方式來收集到。例如，該組織自有的網頁也許提供了員工的姓名地址錄或個人簡歷，如果電腦黑客需要使用社交手段來達到某種目的，那這些就非常有用。獲得的其它信息可能包括其使用的網路配製，從屬的公司或實體，聯繫方式，聯繫人或信箱地址，安全政策，相關連線等。
足跡法
Footprinting Procedures
·DNase I Footprinting (Mike A. Dyer)
·DNase I footprinting
Determining the site of binding for a protein on a DNA sequence
·DNase I Footprinting (Bowtell Lab)
·DNase I Footprinting (Crawford Lab)
Detailed protocol for footprinting, including strategy for probe labeling, recipes and more...
·Exonuclease III footprinting
·Hydroxyl radical footprinting (TTO)
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Hydroxyl radical footprinting is a powerful technique for investigating DNA protein interactions. In contrast to DNase I footprinting, it allows the exact determination of contact sites in the DNA target sequence. This is a modification of this method in which the DNA fragments for the footprint assay are non-radioactively labeled and generated by PCR. The fragments are analyzed after incubation with the specific DNA-binding protein and subsequent treatment with hydroxyl radicals, on an ALFexpress DNA Sequencer
Other procedures
·DMS-treating DNA (Indiana U)
DMS treatment under controlled conditions, followed by piperidine cleavage, yeilds a ladder of fragments indicating the positions of all G residues in the DNA sequence. These ladders are useful MW standards for S1 experiments, footprinting, etc.
·Preparation of G+A Marker (Technical Tips Online)
A rapid one-step procedure for preparation of G plus A sequence markers by acid-induced apurinization and DNA cleavage
Preparation of G+A Marker
Simplified method for preparing G+A ladder run along with footprinting reaction. It's much simple than the original Maxima-Gilbert sequencing reaction and works fine.
