求翻译：在过去的有些系统中,TCP 的ISN 选择不是随机的,增加也是有规律的(递增1 或256 等) ,这使得攻击者有规可循。当然要完成IP Spoof 攻击,还需要配合预先对受信任主机进行拒绝服务攻击是什么意思？

In the past in some systems, the tcp isn selection is not random, regular (incremented by 1 or 256, etc.), which allows an attacker to have rules. Of course to complete the IP spoof attacks, but also need to meet the pre-trusted host denial of service attacks

In the past in some systems, the ISN TCP selection is not random, there is a pattern of increase is also incremented by 1 (or 256, etc. ) that make it possible for an attacker rules to follow. Of course you want to complete IP Spoof attacks, also need to be coupled with pre-trusted hosts to denial o

In past some systems, the TCP ISN choice was not stochastic, the increase also was orderly (increases progressively 1 or 256 and so on), this enabled the aggressor to have the gauge to follow.Certainly must complete IP the Spoof attack, but also needs to coordinate to receive in advance trusts the m

In some systems of the past, TCP ISN choice is not random, increases are also regularly (such as incremental or 1), which allows an attacker to have rules to follow. To complete the IP Spoof attacks, of course, also need to meet prior to the trusted hosts to denial of service attacks

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