4.1 A closer look at hook functions 에 나오는 부분으로 sk_buff의 멤버에 관한 이야기입니다.
One should note that the transport header and network header may very well point to the same location in memory. This is the case for TCP packets where h and nh are both considered as pointers to IP header structures. This means that attempting to get a value from h->th thinking it's pointing to the TCP header will result in false results because h->th will actually be pointing to the IP header, just like nh->iph.
데비안 우디에서는 http://debianusers.org/DebianWiki/NVIDIA 여기에 나온방법대로 하면 nvidia 그래픽이 아주 잘~~~ 잡힙니다 그런데
시드에서는 똑같이하면 설치가안되더군요........이렇게나오면서요
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nvidia-kernel-2.4.18-bf2.4: Depends: nvidia-glx but it is not going to
be installed
그래서 nvidia-glx 를 설치하려고하면 또 이렇게나옵니다
nvidia-glx: Depends: nvidia-kernel-1.0.4496 but it is not installable