BÁO CÁO Y HỌC: " LOW-COST OPEN-SOURCE SNP GENOTYPING PLATFORM FOR ASSOCIATION MAPPING APPLICATIONS" PPTX

(0.21)90%(0.42)Probe A loge(intensity)Probe B loge(intensity)R105.10 Genome Biology 2005, Volume 6, Issue 12, Article R105 Macdonald et al. http://genomebiology.com/2005/6/12/R105Genome Biology 2005, 6:R105ground-subtracted array intensity data for each allele fromeach genotyped site are prov[r]

Considerations for Hardening Windows 49There are several other tools that are not the subject of this book, such as Check can-cels for USENET News and Decode URLs, that you may find useful if you are developinga Web site. Sam Spade can give you UNIX-like capabilities in terms of networ[r]

(taken from the military term forDemilitarized Zone), which is usually for servers that need to be more exposed to theInternet so that outside users can connect to them. Each packet that tries to pass throughthe machine is passed through a series of filters. If it matches the filter, then som[r]

this is horribly insecure and hacks have been published for many of these little “helpful”tools. Most people are unaware of all these programs running in the background. One thing you can do if you are running one of the newer versions of Windows (NT,2000, or XP) is to go to the Services wind[r]

Security Business Processes 69using FTP and other nonessential programs. The all-zero IP address is shorthandfor saying “any address.”iptables –A FORWARD –m multiport –p tcp –i eth0 –d 0.0.0.0 dports www,smtp syn –j ACCEPT 9.You need to allow certain incoming UDP packets. UDP is used for DNS,[r]

Installing SmoothWall 79You will see it formatting the disk and then probing your machine for itsnetwork interfaces. It should auto-detect any network interface cards (NICs). It letsyou accept or skip each one and set them up as firewall interfaces. For example, ifyou have two NICs on[r]

[130.81.4.206] Howlett_CH02.fm Page 34 Wednesday, June 23, 2004 2:58 PMtraceroute (UNIX) or tracert (Windows): Network Diagnostic Tools 3513 59 ms 57 ms 64 ms a5-0-0-732.g-rtr1.man.verizon-gni.net[130.81.5.126] 15 74 ms 62 ms 61 ms 64.223.133.166 16 68 ms 67 ms 68 ms usnh-atm-inet.plymouth.edu [158.[r]

it more appropriate for companies that are making a commercial product. Generally, if youare licensing something under the GPL, it is understood that it is free software. A vendor,however, may charge for packaging, distribution, and support. This is the area that a lot ofcompanies make[r]

Implementing a Secure Wireless SolutionAnother of Tom’s assignments was to set up a wireless network for his company. Tomknew wireless network technology to be rife with security issues, so he used two pro-grams, NetStumbler and WEPCrack, to test the security of his wireless network, anddeplo[r]

possible. A tool for hardening Linux systems is discussed as well as considerations forhardening Windows systems. Several operating system-level tools are reviewed too. Thesebasic tools are like a security administrator’s screwdriver and will be used again and againthroughout the course of th[r]

Buffer overflows happen when application programmers don’t properly code theirprograms to handle data that “overflows” the memory space allotted to input variables.When the program receives input that exceeds the allotted buffer, it can override internalprogram control and thereby give a hacker acce[r]

gram Hydra, which tests the integrity of your system’s passwords. You give it a file of log-ins and passwords and it will attempt to go through the whole list on each service youdesignate. I don’t recommend you use this option unless you are prepared to deal with theaftermath of a brute-force attack[r]

. This use of signa-tures is very similar to the way anti-virus programs work. Most types of attacks have avery distinctive look at the TCP/IP level. An IDS can define attacks based on the IPaddresses, port numbers, content, and any number of criteria. There is another way ofdoing intrusion detectio[r]

Tcpdump ExamplesThe following are several practical examples of ways to use Tcpdump.View All Traffic to and from a Particular Host If you want to monitor only trafficto and from a specific host, you can filter everything else out with the simple “host”expression. For example, to monitor a hos[r]

. You can use this when you want to track all traffic going through your Internet gateway or some specific router.Howlett_CH06.fm Page 176 Thursday, June 24, 2004 11:47 AMTCP/IP Packet Headers 177Combinations Descriptionsdst net net Filters traffic that is destined for a specific network, net[r]

intrusion detection system (NIDS) isnothing more than a sophisticated sniffer that compares each packet on the wire to adatabase of known bad traffic, just like an anti-virus program does with files on yourcomputer.Howlett_CH06.fm Page 163 Thursday, June 24, 2004 11:47 AM164 Chapter 6 • Network Snif[r]

bring up a status screen while the scan executes (see Figure 5.12). You will notice that the Scan Status screen for NessusWX is more detailedthan the UNIX client. It shows things such as the percentage done with the portscan. The UNIX client shows this only as a bar, which isn’t accurate. It[r]

attacks and suspicious activity from internal sources, 194cmd.exe attack, 196database authentication activity, 200false positives, 198–200hardware requirements, 204.ida buffer overflow, 196–198long authentication strings, 199–200Nessus, 199network monitoring system activity, 199network vulnerability[r]

conserve resources and for better security. You can do this by clicking on the Nmap ser-vice in the service viewer and changing the Start-up Type to Manual rather than Auto-matic. This change will take place the next time you reboot the machine. You can alsomanually stop the service by clicki[r]

Uses for Port Scanners 99malicious code in the programs. You will need to run this set of commands foreach source file, the main Nmap program, and the Nmap front-end program(unless you only intend to use it via the command line). 2. Once you have either run the RPM or compiled the pro[r]