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README.md

FastNetMon

Author: Pavel Odintsov pavel.odintsov at gmail.com License: GPLv2

FastNetMon - high performance DoS/DDoS and load analyzer builded on top of PF_RING.

What we do? We can detect hosts in OUR network with big amount of packets per second/bytes per second or flow per second incoming or outgoing from certain host. And we can call external script which can send notify, switch off server or blackhole this client.

Why we write it? Because we can't find any software for solving this problem not in proprietary world not in open source. NetFlow based solutions has some critical limitations for this task.

Travis CI

Install manual

Features:

  • Can process incoming and outgoing traffic
  • Can trigger block script if certain IP load network with big amount of packets per second
  • Can trigger block script if certain IP load network with big amount of bytes per second
  • Can trigger block script if certain IP load network with big amount of flows per second
  • VLAN untagging
  • MPLS traffic processing
  • L2TP decapsulation of nested packets
  • PF_RING ZC/DNA support (wire speed processing on tens of MPPS but need license)
  • Can process sFLOW v5
  • Can work on mirror/SPAN ports
  • Can work on server/soft-router
  • Can detect DoS/DDoS in 1-2 seconds
  • Tested up to 10GE with 5-6 Mpps on Intel i7 2600 with Intel Nic 82599

Supported platforms:

  • Linux (Debian 6+, CentOS 6+, Ubuntu 12+)
  • FreeBSD 10+ (without PF_RING support, only sFLOW)

What is "flow" in FastNetMon terms? It's one or multiple connection udp, tcp, icmp with unique src IP, dst IP, src port, dst port and protocol.

Main programm screen image:

Main screen image

Example for cpu load for Intel i7 2600 with Intel X540/82599 NIC on 400 kpps load: Cpu consumption

Example deployment scheme: Network diagramm

Example of first notification:

subject: Myflower Guard: IP xx.xx.xx.xx blocked because incoming attack with power 120613 pps
body:
IP: XX.XX.XX.XX
Initial attack power: 98285 packets per second
Peak attack power: 98285 packets per second
Attack direction: outgoing
Incoming traffic: 62 mbps
Outgoing traffic: 65 mbps
Incoming pps: 66628 packets per second
Outgoing pps: 98285 packets per second
Incoming flows: 16
Outgoing flows: 16
Incoming

UDP
xx.xx.xx.xx:33611 < 216.239.32.109:53 729021 bytes 5927 packets
xx.xx.xx.xx:33611 < 216.239.34.109:53 231609 bytes 1883 packets
xx.xx.xx.xx:33611 < 216.239.36.109:53 728652 bytes 5924 packets
xx.xx.xx.xx:33611 < 216.239.38.109:53 414387 bytes 3369 packets
xx.xx.xx.xx:38458 < 216.239.32.109:53 724347 bytes 5889 packets
xx.xx.xx.xx:38458 < 216.239.34.109:53 222753 bytes 1811 packets
xx.xx.xx.xx:38458 < 216.239.36.109:53 729267 bytes 5929 packets
xx.xx.xx.xx:38458 < 216.239.38.109:53 383514 bytes 3118 packets
xx.xx.xx.xx:42279 < 216.239.32.109:53 687201 bytes 5587 packets
xx.xx.xx.xx:42279 < 216.239.34.109:53 248091 bytes 2017 packets
xx.xx.xx.xx:42279 < 216.239.36.109:53 737508 bytes 5996 packets
xx.xx.xx.xx:42279 < 216.239.38.109:53 321276 bytes 2612 packets
xx.xx.xx.xx:51469 < 216.239.32.109:53 735663 bytes 5981 packets
xx.xx.xx.xx:51469 < 216.239.34.109:53 237267 bytes 1929 packets
xx.xx.xx.xx:51469 < 216.239.36.109:53 735663 bytes 5981 packets
xx.xx.xx.xx:51469 < 216.239.38.109:53 318570 bytes 2590 packets


Outgoing

UDP
xx.xx.xx.xx:33611 > 216.239.32.109:53 531309 bytes 6107 packets
xx.xx.xx.xx:33611 > 216.239.34.109:53 531222 bytes 6106 packets
xx.xx.xx.xx:33611 > 216.239.36.109:53 531222 bytes 6106 packets
xx.xx.xx.xx:33611 > 216.239.38.109:53 531222 bytes 6106 packets
xx.xx.xx.xx:38458 > 216.239.32.109:53 527220 bytes 6060 packets
xx.xx.xx.xx:38458 > 216.239.34.109:53 527133 bytes 6059 packets
xx.xx.xx.xx:38458 > 216.239.36.109:53 527133 bytes 6059 packets
xx.xx.xx.xx:38458 > 216.239.38.109:53 527220 bytes 6060 packets
xx.xx.xx.xx:42279 > 216.239.32.109:53 539052 bytes 6196 packets
xx.xx.xx.xx:42279 > 216.239.34.109:53 539052 bytes 6196 packets
xx.xx.xx.xx:42279 > 216.239.36.109:53 539139 bytes 6197 packets
xx.xx.xx.xx:42279 > 216.239.38.109:53 539139 bytes 6197 packets
xx.xx.xx.xx:51469 > 216.239.32.109:53 532701 bytes 6123 packets
xx.xx.xx.xx:51469 > 216.239.34.109:53 532701 bytes 6123 packets
xx.xx.xx.xx:51469 > 216.239.36.109:53 532701 bytes 6123 packets
xx.xx.xx.xx:51469 > 216.239.38.109:53 532788 bytes 6124 packets

Example of second notification:

subject: Myflower Guard: IP xx.xx.xx.xx blocked because incoming attack with power 120613 pps
body:
IP: xx.zz.xx.1
2014-11-21 08:01:11.419798 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419799 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419816 xx.xx.xx.xx:51469 > 216.239.36.109:53 protocol: udp flags:  size: 87 bytes
2014-11-21 08:01:11.419837 216.239.38.109:53 > xx.xx.xx.xx:33611 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419838 216.239.34.109:53 > xx.xx.xx.xx:33611 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419859 216.239.38.109:53 > xx.xx.xx.xx:42279 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419877 xx.xx.xx.xx:51469 > 216.239.38.109:53 protocol: udp flags:  size: 87 bytes
2014-11-21 08:01:11.419884 216.239.38.109:53 > xx.xx.xx.xx:33611 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419891 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419906 216.239.38.109:53 > xx.xx.xx.xx:33611 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419907 216.239.38.109:53 > xx.xx.xx.xx:42279 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419908 216.239.38.109:53 > xx.xx.xx.xx:42279 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419916 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419917 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419929 216.239.38.109:53 > xx.xx.xx.xx:33611 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419961 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419962 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419963 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419963 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes

How to enable sFLOW? Please specify IP of server with installed FastNetMon and specify 6343 port.