And IDS false positives than false negative are even more dangerous. IDS technology is used to give warning at the time of the invasion that information. If the intruder alarm has not yet invaded the success of IDS, IDS will be lost meaning of existence. I see from an article on foreign websites, it features the use TCP connections made to IDS omitted a detailed description, and also gives some ways to achieve omission, given the author provides a new way: IDS would like to To prevent fraud, we should mimic as much as possible TCP / IP stack implementation. But from the efficiency and implementation complexity considerations, IDS can not easily do this. This method is suitable for intelligent IDS, IDS common good in order to reduce false positives, will be like now, like some high-end firewall to judge based on the state, rather than the individual packets to judge. Stick discussed above that this IDS generally does not work. But users should note that this is just a simple string matching IDS, once a successful match, then the police.
Ricoh important of these three models in the performance of consistent performance, but the follow-up products in the reaction speed, quality, appearance, etc. are better than previously released models. The price cuts, so Ricoh R Series models has been greatly improved cost-effective, consumers can choose according to their purchasing power. Pentax K100DSuper is a 600-megapixel entry-level SLR cameras. K100D compared to the previous terms, K100DSuper added the name of the CCD dust removal system DR; lens KAF bayonet the target by upgrading to the KAF2, can use SDM lens motor; officially began to support SDHC memory cards. This SLR camera kit now sells for 4350 yuan to send 1GB card. It can be said a lot of new equipment to increase the Pentax K100D Super, can be regarded as the best current performance of 600 one-megapixel digital SLR camera has. Particularly KAF2 mount support for subsequent use of the lens with SDM ultrasonic motor to bring the convenience. Describe the use of sensors Pentax original Dust Removal system to prevent dust attached to the CCD surface, to obtain a clearer image effects; with the latest SR Shake Reduction system that can secure the shutter in less than two steps without legs under the circumstances frame shooting