snort 2 1 intrusion detection second edition phần 8 pps

snort 2.1 intrusion detection second edition phần 8 pps

snort 2.1 intrusion detection second edition phần 8 pps

... next packet: 12 : 24:57 .87 76 52 arp who-has 1 92. 16 8 .10 .2 tell 1 92. 16 8 .10 .1 **** Press <ENTER> to send the next packet: 12 : 24:57 .8 82 8 18 arp who-has 1 92. 16 8 .10 .3 tell 1 92. 16 8 .10 .1 **** Press ... 12 : 24:49.9 613 61 1 92. 16 8 .10 .13 .3093 > 1 92. 16 8. 30 .17 1.ssh: P 36: 72( 36) ack 1 win 16 1 92 (DF) **** Pr...
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snort 2.1 intrusion detection second edition phần 7 ppsx

snort 2.1 intrusion detection second edition phần 7 ppsx

... teardrop_attack_cap 16 : 52: 06. 029 3 68 1 72. 16 .10 .15 1 .1 025 > 1 72. 16 .10 .20 0 .13 5: [no cksum] udp 28 (frag 24 2:36@0+) (ttl 3, len 56) 16 : 52: 06.0463 02 1 72. 16 .10 .15 1 > 1 72. 16 .10 .20 0: (frag 24 2:4 @24 ) (ttl ... attack: Full Alert: [**] [11 3 :2: 1] (spp_frag2) Teardrop attack [**] 02/ 19 -16 : 52: 06.0463 02 1 72. 16 .10 .15 1 -&g...
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snort 2.1 intrusion detection second edition phần 1 pptx

snort 2.1 intrusion detection second edition phần 1 pptx

... Unregistered Version - http://www.simpopdf.com 29 5 _Snort_ 2e_ 01. qxd 5/4/04 4:50 PM Page 12 12 Chapter 1 • Intrusion Detection Systems Figure 1. 1 NIDS Network INTERNET Mail DNS NIDS NIDS ... http://www.simpopdf.com 29 5 _Snort_ 2e_ 01. qxd 5/4/04 4:50 PM Page 10 10 Chapter 1 • Intrusion Detection Systems ■ Network-Based Intrusion Detection System (NIDS) ■...
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snort 2.1 intrusion detection second edition phần 2 ppt

snort 2.1 intrusion detection second edition phần 2 ppt

... like that: 03 /11 - 12 : 44:45. 424 5 51 0:A0:CC :29 :1D :13 -> 0 :20 :6F:3:7:CC type:0x800 len:0x7A 66 .80 .14 6 .8 :22 00 -> 69 .13 8 .22 5 .13 7: 12 8 9 TCP TTL:64 TOS:0x10 ID:5 5 28 IpLen :20 DgmLen :10 8 DF ***AP*** ... flushed packets: INACTIVE flush_data_diff_size: 500 Ports: 21 23 25 53 80 11 0 11 1 14 3 513 14 33 Emergency Ports: 21 23 25 53 80 11 0 11...
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snort 2.1 intrusion detection second edition phần 3 potx

snort 2.1 intrusion detection second edition phần 3 potx

... be 1 92. 16 8. 0.0 /24 , which means that the address space of 1 92. 16 8. 0. 1 92. 16 8. 0 .25 4 will be repre- sented, using a subnet mask of 25 5 .25 5 .25 5.0 (see Figure 3 .14 ). Figure 3 .14 Editing the snort. conf ... /usr/ports/net /snort/ w -snort- 2. 0.0p1 /snort- 2. 0.0/mkinstalldirs /usr/ports/net /snort/ w -snort- 2. 0.0p1/fake-i 386 /usr/local/man/man8 instal...
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snort 2.1 intrusion detection second edition phần 4 potx

snort 2.1 intrusion detection second edition phần 4 potx

... Be Merged 10 .1. 0.0 /22 10 .1. 0.0 /24 , 10 .1 .2. 0 /24 , 10 .1. 4.0 /24 , 10 .1. 6.0 /24 19 8. 0.0.0 /20 19 8 .1. 0.0 / 21 , 19 8 .2. 0.0 / 21 10 .10 0 .80 .0/ 31 10 .10 0 .80 .1/ 32, 10 .10 0 .80 .10 1/ 32 Merging subnet masks can save ... jay. 03 /13 -17 : 58: 02. 520 000 xxx.xxx.xxx.xxx:36 922 -> xxx.xxx.xxx.xxx :23 TCP TTL:64 TOS:0x10 ID: 622 53 IpLen :20 DgmLen...
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snort 2.1 intrusion detection second edition phần 5 pot

snort 2.1 intrusion detection second edition phần 5 pot

... http://www.simpopdf.com 29 5 _Snort2 e_06.qxd 5/6/04 12 : 51 PM Page 310 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com 29 5 _Snort2 e_06.qxd 5/6/04 12 : 51 PM Page 28 1 Preprocessors • Chapter 6 28 1 ... Unregistered Version - http://www.simpopdf.com 29 5 _Snort2 e_06.qxd 5/6/04 12 : 51 PM Page 28 2 28 2 Chapter 6 • Preprocessors IAC SB SING HUMPTY-...
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snort 2.1 intrusion detection second edition phần 1 potx

snort 2.1 intrusion detection second edition phần 1 potx

... 04/06 - 21 : 12 : 49 .87 611 6 3 82 1 92. 16 8 .1. 1 02 - 1 92. 16 8 .1. 1 01 - ICMP PING Windows 04/06 - 21 : 12 : 50.0 085 43 4 08 1 92. 16 8 .1. 1 01 - 1 92. 16 8 .1. 1 02 - ICMP Echo Reply 04/06 - 21 : 12 : 50 .87 7603 3 82 1 92. 16 8 .1. 1 02 - 1 92. 16 8 .1. 1 01 ... 04/06 - 21 : 12 : 52. 016 027 4 08 1 92. 16 8 .1. 1 01 - 1 92. 16 8...
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snort 2.1 intrusion detection second edition phần 9 pot

snort 2.1 intrusion detection second edition phần 9 pot

... > 20 4 .17 4.x.x.53573: S 25 23 514 769 :25 23 514 769(0) ack 3 7 28 59 511 0 win 57 92 20 4 .17 4.x.x.53573 > 68. 48. x.x .80 : . ack 1 win 584 0 20 4 .17 4.x.x.53573 > 68. 48. x.x .80 : P 1: 119 (11 8) ack 1 win 584 0 ... 20 4 .17 4.x.x.53573 > 68. 48. x.x .80 : F 11 9 :11 9(0) ack 3 58 win 64 32 68. 48. x.x .80 > 20 4 .17 4.x.x.53573: F 3 58: 3 58( 0) ack 1...
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snort 2.1 intrusion detection second edition phần 10 doc

snort 2.1 intrusion detection second edition phần 10 doc

... 68 52 20 4 .17 4.x.x. 486 62 > 1 92. 16 8 .10 .20 .80 : F 11 9 :11 9(0) ack 5 72 win 68 52 1 92. 16 8 .10 .20 .80 > 20 4 .17 4.x.x. 486 62: F 5 72: 5 72( 0) ack 12 0 win 57 92 20 4 .17 4.x.x. 486 62 > 1 92. 16 8 .10 .20 .80 : . ack ... eth0 20 4 .17 4.x.x. 486 62 > 1 92. 16 8 .10 .20 .80 : S 783 689 484 : 783 689 484 (0) win 584 0 1 92. 16 8...
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