Luis Gabriel Gomez lggomez
👶
lggomez
/ tcpdump cheat sheet
Created
July 6, 2023 12:56
— forked from githubfoam/tcpdump cheat sheet
tcpdump cheat sheet
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| ---------------------------------------------------------------------------------------------------- | |
| tcpdump -s 0 #capture entire etherner header and IP packet | |
| tcpdump -ni tap55ec3c7f-91 ip6 #locate the ICMPv6 packets | |
| tcpdump -s0 -n -i any -w /tmp/$(hostname)-smbtrace.pcap #if the SMB client or SMB server is a Unix host,Troubleshooting Server Message Block (SMB) | |
| tcpdump -D #Print the list of the network interfaces available on the system and on which tcpdump can capture packet | |
| tcpdump -X -vvv -n -i eth0 |
lggomez
/ stacktrace.go
Created
July 26, 2021 15:55
— forked from lggomezml/stacktrace.go
Get a compact stacktrace without the callsites
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| var newLine = []byte("\n")[0] | |
| var goPathPrefix = "\t/go/src/" | |
| var goUsersPrefix = "\t/Users/" | |
| func dumpStacktrace(skipLines int) []byte { | |
| stack := debug.Stack() | |
| init, lines := 0, 0 | |
| // First pass: seek stack start skiping lines if necessary | |
| if skipLines > 0 { |
lggomez
/ go_cpu_memory_profiling_benchmarks.sh
Last active
July 2, 2021 14:54
— forked from arsham/go_cpu_memory_profiling_benchmarks.sh
Go cpu and memory profiling benchmarks. #golang #benchmark
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| # Run tests for package in current location | |
| go test -run=. -bench=. -benchtime=5s -count 5 -benchmem -cpuprofile=cpu.out -memprofile=mem.out -trace=trace.out ./ | tee bench.txt | |
| go tool pprof -http :8080 cpu.out | |
| go tool pprof -http :8081 mem.out | |
| go tool trace trace.out | |
| go tool pprof $FILENAME.test cpu.out | |
| # (pprof) list <func name> | |
| # go get -u golang.org/x/perf/cmd/benchstat |