FM / tracing

/usr/share/doc/bpfcc-tools/examples/tracing/

/usr/share/doc/bpfcc-tools/examples/tracing

Name	Size	Mode	Actions
biolatpcts.py	3312	0755	edit dl rm
biolatpcts_example.txt	650	0644	edit dl rm
bitehist.py	1397	0755	edit dl rm
bitehist_example.txt	1208	0644	edit dl rm
CMakeLists.txt	276	0644	edit dl rm
dddos.py	3818	0755	edit dl rm
dddos_example.txt	2112	0644	edit dl rm
disksnoop.py	1947	0755	edit dl rm
disksnoop_example.txt	1587	0644	edit dl rm
hello_fields.py	679	0755	edit dl rm
hello_perf_output.py	1270	0755	edit dl rm
hello_perf_output_using_ns.py	1843	0755	edit dl rm
kvm_hypercall.py	1520	0755	edit dl rm
kvm_hypercall.txt	1782	0644	edit dl rm
mallocstacks.py	1942	0755	edit dl rm
mysqld_query.py	1701	0755	edit dl rm
mysqld_query_example.txt	499	0644	edit dl rm
nflatency.py	6214	0755	edit dl rm
nodejs_http_server.py	1376	0755	edit dl rm
nodejs_http_server_example.txt	276	0644	edit dl rm
stacksnoop.py	3252	0755	edit dl rm
stacksnoop_example.txt	2871	0644	edit dl rm
stack_buildid_example.py	3106	0755	edit dl rm
strlen_count.py	1331	0755	edit dl rm
strlen_hist.py	1856	0755	edit dl rm
strlen_hist_ifunc.py	3800	0755	edit dl rm
strlen_snoop.py	1384	0755	edit dl rm
sync_timing.py	1390	0755	edit dl rm
task_switch.c	499	0644	edit dl rm
task_switch.py	486	0755	edit dl rm
tcpv4connect.py	2413	0755	edit dl rm
tcpv4connect_example.txt	1063	0644	edit dl rm
trace_fields.py	589	0755	edit dl rm
trace_perf_output.py	1600	0755	edit dl rm
undump.py	3602	0755	edit dl rm
undump_example.txt	886	0644	edit dl rm
urandomread-explicit.py	1511	0755	edit dl rm
urandomread.py	1032	0755	edit dl rm
urandomread_example.txt	675	0644	edit dl rm
vfsreadlat.c	896	0644	edit dl rm
vfsreadlat.py	1336	0755	edit dl rm
vfsreadlat_example.txt	3619	0644	edit dl rm

Edit: /usr/share/doc/bpfcc-tools/examples/tracing/dddos_example.txt (2112B)

Demonstrations of dddos.py, the Linux eBPF/bcc version.

This tracks ip_rcv function (using kprobe) and elapsed time
between received packets to detect potential DDOS attacks.

The following steps illustrates the usage of dddos :
1 - Start dddos.py :
# ./dddos.py
DDOS detector started ... Hit Ctrl-C to end!
TIME(s)            MESSAGE

2 - Launch hping3 (or any other flooder) in another terminal as shown below:
# hping3 localhost -S -A -V -p 443 -i u100

3 - dddos.py triggers alerts and reports a DDOS attack:
DDOS detector started ... Hit Ctrl-C to end!
TIME(s)                    MESSAGE
2019-01-16 11:55:12.600734 DDOS Attack => nb of packets up to now :  1001
2019-01-16 11:55:12.600845 DDOS Attack => nb of packets up to now :  1002
2019-01-16 11:55:12.600887 DDOS Attack => nb of packets up to now :  1003
2019-01-16 11:55:12.600971 DDOS Attack => nb of packets up to now :  1004
2019-01-16 11:55:12.601009 DDOS Attack => nb of packets up to now :  1005
2019-01-16 11:55:12.601062 DDOS Attack => nb of packets up to now :  1006
2019-01-16 11:55:12.601096 DDOS Attack => nb of packets up to now :  1007
2019-01-16 11:55:12.601195 DDOS Attack => nb of packets up to now :  1008
2019-01-16 11:55:12.601228 DDOS Attack => nb of packets up to now :  1009
2019-01-16 11:55:12.601331 DDOS Attack => nb of packets up to now :  1010
2019-01-16 11:55:12.601364 DDOS Attack => nb of packets up to now :  1011
2019-01-16 11:55:12.601470 DDOS Attack => nb of packets up to now :  1012
2019-01-16 11:55:12.601505 DDOS Attack => nb of packets up to now :  1013
2019-01-16 11:55:12.601621 DDOS Attack => nb of packets up to now :  1014
2019-01-16 11:55:12.601656 DDOS Attack => nb of packets up to now :  1015
2019-01-16 11:55:12.601757 DDOS Attack => nb of packets up to now :  1016
2019-01-16 11:55:12.601790 DDOS Attack => nb of packets up to now :  1017
2019-01-16 11:55:12.601892 DDOS Attack => nb of packets up to now :  1018
2019-01-16 11:55:12.601925 DDOS Attack => nb of packets up to now :  1019
2019-01-16 11:55:12.602028 DDOS Attack => nb of packets up to now :  1020

Remark : Use Ctrl-C to stop dddos.py

cmd: