b rarp reverse address resolution protocol

Các cách tấn công và phòng chống tấn công ARP (address resolution protocol)

Các cách tấn công và phòng chống tấn công ARP (address resolution protocol)

... Attacker biết nội dung trao đổi giữa HostA Victim Sau b công ARP attack, sẽ nguy hiểm cho người dùng vì thông tin trao đổi họ b lộ, những thông tin quan trọng, cần phải giữ bí mật 4.Giới ... dò tìm bảng ARP cache xem IP HostB sẽ có địa MAC tương ứng gì HostA đóng gói dữ liệu cần truyền với MAC nguồn MAC HostA, MAC đích MAC HostB Sau HostA sẽ truyền dữ liệu tới HostB dựa ... đến router, router sẽ dựa vào địa IP đích (IP HostB)và dò tìm bảng định tuyến nhằm xác định đường đến HostB Router có khả ngăn chặn gói tin broadcast - Hình thức công thực hiện mạng WAN,...

Ngày tải lên: 14/07/2015, 07:40

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Annual compilation and accounting report for Annex B Parties under the Kyoto Protocol ppt

Annual compilation and accounting report for Annex B Parties under the Kyoto Protocol ppt

... 2006 29 December 2006 22 December 2006 22 December 2006 29 December 2006 May 2007 21 December 2006 31 August 2006 22 December 2006 29 December 2006 28 December 2006 18 May 2007c 20 February 2007c ... progress Belarus has submitted its initial report, but the review of this report has not been initiated, because the amendment to include Belarus in Annex B to the Kyoto Protocol has not been ratified ... been reviewed by 18 September 2008: of these, 35 fulfilled all the eligibility criteria and 34 became eligible to participate in all Kyoto Protocol mechanisms (see table 2) Bulgaria submitted its...

Ngày tải lên: 29/03/2014, 14:20

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Next Hop Resolution Protocol doc

Next Hop Resolution Protocol doc

... router A gửi subsequence data IP packet cuối đến router D GRE IP next hop - với NHRP, NBMA next hop xác định, host nguồn b t đầu gửi liệu gói tin đến đích (không kết nối qua NBMA IP GRE SMDS) ... NHRP resolution request packet đóng gói GRE IP packet, mà theo hình hop qua mạng đến Router D để kết nối đến host đích sau router A nhận NHRP resolution reply, Router A xác định router D NBMA ... pháp điển hình để thực định tuyến dựa địa đích lớp mạng NHRP request NHRP resolution request cuối đến trạm nơi mà phát NHRP resolution reply Trạm đáp ứng đưa trả lời sử dụng địa đích từ gói tin NHRP...

Ngày tải lên: 25/07/2014, 07:21

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Báo cáo khoa học: High resolution structure and catalysis of O-acetylserine sulfhydrylase isozyme B from Escherichia coli pot

Báo cáo khoa học: High resolution structure and catalysis of O-acetylserine sulfhydrylase isozyme B from Escherichia coli pot

... double bond (green spheres) Hydrogen bonds are given as black broken lines All van der Waals distances ˚ between TNB and its environment are above 3.0 A The two shortest contacts are marked by ... rather distant from PLP, is probably a result of inefficient TNB binding, causing a large increase in KM(TNB) The proposed binding deficiency agrees with our TNB model (see below) and also with an earlier ... 140 near PLP TNB was always freshly prepared in 50 mm Hepes pH 7.0 by adding mm dithiothreitol and 0.5 mm S,S¢-bis(5-thio2-nitrobenzoate) (DTNB) to yield mm TNB The absorption of TNB was monitored...

Ngày tải lên: 07/03/2014, 05:20

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Báo cáo khóa học: Conformational changes of b-lactoglobulin in sodium bis(2-ethylhexyl) sulfosuccinate reverse micelles A fluorescence and CD study docx

Báo cáo khóa học: Conformational changes of b-lactoglobulin in sodium bis(2-ethylhexyl) sulfosuccinate reverse micelles A fluorescence and CD study docx

... Ó FEBS 2004 Conformational changes of bLG in reverse micelles (Eur J Biochem 271) 735 Scheme Ribbon diagram of a single unit of bovine b- lactoglobulin (bLG) drawn using SWISS PDBVIEWER, ... commonly observed to be quenched by water molecules, probably by proton transfer [56] It should be noted that these water-induced conformational changes in bLG may cause fluorescence quenching by mechanisms ... were obtained by fitting to a Gaussian function (see Table for details) (A) AOT, x0 ¼ 5; (B) AOT, x0 ¼ 30; (C) water Ó FEBS 2004 Conformational changes of bLG in reverse micelles (Eur J Biochem...

Ngày tải lên: 07/03/2014, 15:20

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Báo cáo khoa học: High-resolution NMR studies of the zinc-binding site of the Alzheimer’s amyloid b-peptide pdf

Báo cáo khoa học: High-resolution NMR studies of the zinc-binding site of the Alzheimer’s amyloid b-peptide pdf

... addition, Ab-bound Cu(II) may be reduced to Cu(I), and the complex may produce hydrogen peroxide, which has been suggested to be neurotoxic in AD [30] Soluble monomeric Ab has a high-affinity copperbinding ... fluorescence-quenching abilities, but its binding affinity can be estimated by competitive titrations with copper, provided that the binding site is the same Ab(1–28) was incubated with various amounts ... binding site of copper is not possible, due to the general paramagnetic line-broadening exhibited by copper Different ligands for metal coordination by Ab were suggested in earlier studies, but...

Ngày tải lên: 23/03/2014, 10:20

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hepatitis b and d protocols volume 1

hepatitis b and d protocols volume 1

... (DIG)–labeled DNA probes The DNA probe labeled by DIG has been shown to have the same sensitivity as a 32P-labeled DNA probe and is able to detect HBV DNA between and ng in a spot hybridization ... of (A) Liquid hybridization assay (Genostics™ HBV-DNA Assay, Abbott Laboratories), (B) Branched DNA assay (Versant HBV, Bayer Diagnostics), (C) Hybrid Capture II Technology (Hybrid Capture™ II ... hepatitis B virus (HBV) DNA have been used widely (Table 1), but their interpretation and significance have yet to be defined HBV DNA assays are limited by lack of standardization and variable sensitivity...

Ngày tải lên: 11/04/2014, 09:45

333 404 0
hepatitis b and d protocols volume 2

hepatitis b and d protocols volume 2

... antiDHBc ELISA plates are coated with rDHBcAg (1), and bound antibodies are again detected using rabbit anti-duck IgY antibodies Rabbit anti-duck IgY antibodies are prepared by immunization of rabbits ... ELISAs have been developed for quantitation of DHBsAg (Fig 6) and detection of anti-DHBs (Fig 7A) and anti-DHBc (Fig 7B) antibodies In the DHBsAg ELISA rabbit anti-DHBs antibodies (see Subheading ... rabbit anti-human CD3⑀ antiserum (black line) or the negative control rabbit anti-bovine myoglobin antiserum (gray line) before the addition of FITC-conjugated sheep anti-rabbit IgG as described...

Ngày tải lên: 11/04/2014, 09:45

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high resolution separation and analysis of biological macromolecules, part b

high resolution separation and analysis of biological macromolecules, part b

... (17), Berlex Biosciences, Bris- bane, Cal({brnia 94005 MILOS V NOVOINY (14), Department of Chemistry, Indiana University, Bloomington, Indiana 47405 E PUNGOR, JR (17), Berlex Biosciences, Bris'- bane, ... owing to a lower background signal In addition, it should be noted that a lower TFA concentration may be required in eluent B than eluent A to counter baseline drift due to absorbance by the organic ... column, a gradient run in the absence of sample (i.e., a "blank" run) should be carried OUt 4') In fact, even before the blank run, we suggest that the column should be subjected to a rapid gradient...

Ngày tải lên: 11/04/2014, 09:46

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Báo cáo sinh học: " Open Access Cloning of the canine RNA polymerase I promoter and establishment of reverse genetics for influenza A and B in MDCK cells" docx

Báo cáo sinh học: " Open Access Cloning of the canine RNA polymerase I promoter and establishment of reverse genetics for influenza A and B in MDCK cells" docx

... HindIII XbaI BamHI BamHI BamHI AvrII SpeI EcoRI SpeI HindIII SphI XbaI XbaI BamHI * XbaI BamHI BamHI SacI BamHI * EcoRI BamHI SacI BamHI BamHI AvrII 18S rRNA Gene MDCK Eco RI 7.1 kb Fragment B M C ... rRNA gene probe Right panel: Southern blot of gel in left panel after hybridization to a psoralen-biotin labeled 18S rRNA gene probe (0.5 kb) and detection by chemilumiscense The 7.1 kb EcoR I fragment ... (469) In addition, the cloning sites between the RNA pol I promoter and the RNA pol I terminator were changed from BsmB I-Kpn I-BsmB I (pAD3000) to Bbs I-Xho I-Bbs I (pAD4000) Influenza segments,...

Ngày tải lên: 18/06/2014, 18:20

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Báo cáo hóa học: " Cloning of the canine RNA polymerase I promoter and establishment of reverse genetics for influenza A and B in MDCK cells" pdf

Báo cáo hóa học: " Cloning of the canine RNA polymerase I promoter and establishment of reverse genetics for influenza A and B in MDCK cells" pdf

... HindIII XbaI BamHI BamHI BamHI AvrII SpeI EcoRI SpeI HindIII SphI XbaI XbaI BamHI * XbaI BamHI BamHI SacI BamHI * EcoRI BamHI SacI BamHI BamHI AvrII 18S rRNA Gene MDCK Eco RI 7.1 kb Fragment B M C ... rRNA gene probe Right panel: Southern blot of gel in left panel after hybridization to a psoralen-biotin labeled 18S rRNA gene probe (0.5 kb) and detection by chemilumiscense The 7.1 kb EcoR I fragment ... (469) In addition, the cloning sites between the RNA pol I promoter and the RNA pol I terminator were changed from BsmB I-Kpn I-BsmB I (pAD3000) to Bbs I-Xho I-Bbs I (pAD4000) Influenza segments,...

Ngày tải lên: 20/06/2014, 01:20

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báo cáo hóa học:" Substitutions in the Reverse Transcriptase and Protease Genes of HIV-1 Subtype B in Untreated Individuals and Patients Treated With Antiretroviral Drugs" potx

báo cáo hóa học:" Substitutions in the Reverse Transcriptase and Protease Genes of HIV-1 Subtype B in Untreated Individuals and Patients Treated With Antiretroviral Drugs" potx

... G G → C Number of Substitutions http://www.jiasociety.org/content/7/1/69 Substitutions Figure of nucleotide substitutions in responsible for October 2003 ance mutations as defined by a IAS-USART ... type reverse transcriptase Nucleic Acids Res 1998, 26:3066-3072 Abstract Roberts J, Bebenek K, Kunkel T: The accuracy of reverse transcriptase from HIV-1 Science 1998, 242:1171-1173 Harris RS, Bishop ... W, Back NK, van Wijk A, Boucher CA, Berkhout B: Initial appearance of the 184Ile variant in lamivudine-treated patients is caused by the mutational bias of human immunodeficiency virus type reverse...

Ngày tải lên: 20/06/2014, 08:20

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Báo cáo y học: "Comparative biochemical analysis of recombinant reverse transcriptase enzymes of HIV-1 subtype B and subtype " ppt

Báo cáo y học: "Comparative biochemical analysis of recombinant reverse transcriptase enzymes of HIV-1 subtype B and subtype " ppt

... inhibitors ETR Susceptibilities of HIV-1 subtype B and subtype C recombinant RTs and viruses to RT inhibitors RT inhibitors Table RT inhibitor susceptibilities for HIV-1 subtype B and subtype ... results of Table show that both the subtype B and the two subtype C RT enzymes from isolates BG05 and M01 (GenBank accession number AF492609 and AF492603) were inhibited to similar extent by all of ... coding regions of subtype C HIV-1 isolate BG05 (GenBank accession number AF492609) or subtype B HIV-1 pNL4-3 (GenBank accession number AF324493) were subcloned into pRT6H-PROT by standard PCR cloning...

Ngày tải lên: 13/08/2014, 01:20

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2000 thi bang A va B.pdf

2000 thi bang A va B.pdf

... garden," the woman said a because b for c by d as soon as > a 156 The woman has hurt her back for too long a to bend b by bending c for bending d owing to you bend > b 157 A lot of passengers ... exercises everyday a b does c is doing d are doing > b 122 Tomorrow my friend's birthday I some flowers for her a is / will buy b will be / will buy d is / buy d will be / buy > a 123 It's ... d ringing > b 95 The shoes are Peter's a bus b blouse c both d brown > d 96 Your are new, Hung a shirt b blouse c trousers d hat > c 97 There are boys in our class a no b not c none...

Ngày tải lên: 05/08/2012, 12:28

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Tổng quan về NAT (Network Address Translation)

Tổng quan về NAT (Network Address Translation)

... IP address chuyển thành "inside global address" địa destination IP gói tin “outside global address Hay ngược lại, gói tin b t nguồn từ mạng b n ngoài, mạng b n đó, địa source IP "outside global ... cổng b n ngoài, đáp ứng tiêu chuẩn để NAT, tiến trình NAT tìm kiếm b ng NAT hàng địa inside global vớI đia đích gói tin +> Nếu hàng b ng NAT tìm thấy, gói tin b loạI b Nếu có hàng tìm thấy b ng ... kết nối tới B t người từ b n muốn kết nối vào host định b n mạng thời điểm tùy ý có trường hợp : + Host b n entry b ng NAT nhận thông tin “host unreachable” có entry NAT-IPs + Biết IP kết nối...

Ngày tải lên: 15/08/2012, 10:40

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2009-03 (a,b,c)  - ANSWER.doc

2009-03 (a,b,c) - ANSWER.doc

Ngày tải lên: 15/08/2012, 11:00

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2009-04 (a,b,c)  - ANSWER.doc

2009-04 (a,b,c) - ANSWER.doc

Ngày tải lên: 15/08/2012, 11:01

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B tree cây tìm kiếm nhiều đường

B tree cây tìm kiếm nhiều đường

... 40 trang B vào trang H, hủy b trang I 28 Các phép toán B- cây  Khi loại b nút 8: 29 Các phép toán B- cây  Khi loại b nút 27, đem nút 30 trang B vào G nút 35 trang H vào B  Khi loại b nút 46 ... phép toán B- cây Tìm kiếm loại b khỏi B- cây: Xét hai trường hợp sau: Phần tử b loại b trang lá: Trường hợp thực dễ dàng Phần tử b loại b không trang lá: Nó phải thay  24 Các phép toán B- cây ... toán B- cây  Khi loại b nút 42, nhập trang H vào G, đem nút 35 trang B vào G, hủy trang H  Khi loại b nút 5, đem nút 10 trang B vào D nút 15 trang E vào B: 31 Các phép toán B- cây  Khi loại b ...

Ngày tải lên: 17/08/2012, 09:38

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