ptcpdump

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ptcpdump는 eBPF로 구동되는 tcpdump 호환 패킷 분석기로, 감지 가능한 경우 패킷에 프로세스/컨테이너/파드 메타데이터를 자동으로 주석 처리합니다. jschwinger233/skbdump에서 영감을 받았습니다.

🔍 프로세스/컨테이너/파드 인식 패킷 캡처.
📦 필터: --pid (프로세스), --pname (프로세스 이름), --container-id (컨테이너), --pod-name (파드).
🎯 tcpdump 호환 플래그 (-i, -w, -c, -s, -n, -C, -W, -A 등).
📜 tcpdump처럼 pcap-filter(7) 구문 지원.
🌳 tcpdump 스타일 출력 + 프로세스/컨테이너/파드 컨텍스트.
📑 상세 모드에서는 프로세스와 컨테이너/파드의 자세한 메타데이터를 보여줍니다.
💾 메타데이터가 포함된 PcapNG (Wireshark 호환).
🌐 네트워크 네임스페이스 간 캡처 (--netns).

설치

x86_64 및 arm64용 정적 링크 실행 파일을 릴리스 페이지에서 다운로드할 수 있습니다.

요구 사항

Linux 커널 >= 5.2 (BPF 및 BTF 지원으로 컴파일).

ptcpdump는 선택적으로 debugfs가 필요합니다. /sys/kernel/debug에 마운트되어 있어야 합니다. 폴더가 비어 있는 경우 다음 명령으로 마운트할 수 있습니다:

mount -t debugfs none /sys/kernel/debug

다음 커널 구성이 필요합니다. 모듈로 빌드하는 것도 가능합니다.

🔝

사용법

예시 명령어

tcpdump처럼 필터링:

sudo ptcpdump -i eth0 tcp
sudo ptcpdump -i eth0 -A -s 0 -n -v tcp and port 80 and host 10.10.1.1
sudo ptcpdump -i any -s 0 -n -v -C 100MB -W 3 -w test.pcapng 'tcp and port 80 and host 10.10.1.1'
sudo ptcpdump -i eth0 'tcp[tcpflags] & (tcp-syn|tcp-fin) != 0'

여러 인터페이스:

sudo ptcpdump -i eth0 -i lo

프로세스 또는 사용자로 필터링:

sudo ptcpdump -i any --pid 1234 --pid 233 -f
sudo ptcpdump -i any --pname curl
sudo ptcpdump -i any --uid 1000

대상 프로그램을 실행하여 프로세스 기준으로 캡처:

sudo ptcpdump -i any -- curl ubuntu.com

컨테이너 또는 파드로 필터링:

sudo ptcpdump -i any --container-id 36f0310403b1
sudo ptcpdump -i any --container-name test
sudo ptcpdump -i any --pod-name test.default

PcapNG 형식으로 데이터 저장:

sudo ptcpdump -i any -w demo.pcapng
sudo ptcpdump -i any -w - port 80 | tcpdump -n -r -
sudo ptcpdump -i any -w - port 80 | tshark -r -

다른 네트워크 네임스페이스의 인터페이스 캡처:

sudo ptcpdump -i lo --netns /run/netns/foo --netns /run/netns/bar
sudo ptcpdump -i any --netns /run/netns/foobar
sudo ptcpdump -i any --netns /proc/26/ns/net

🔝

예시 출력

기본:

09:32:09.718892 vethee2a302f wget.3553008 In IP 10.244.0.2.33426 > 139.178.84.217.80: Flags [S], seq 4113492822, win 64240, length 0, ParentProc [python3.834381], Container [test], Pod [test.default]
09:32:09.718941 eth0 wget.3553008 Out IP 172.19.0.2.33426 > 139.178.84.217.80: Flags [S], seq 4113492822, win 64240, length 0, ParentProc [python3.834381], Container [test], Pod [test.default]

-q 사용:

09:32:09.718892 vethee2a302f wget.3553008 In IP 10.244.0.2.33426 > 139.178.84.217.80: tcp 0, ParentProc [python3.834381], Container [test], Pod [test.default]
09:32:09.718941 eth0 wget.3553008 Out IP 172.19.0.2.33426 > 139.178.84.217.80: tcp 0, ParentProc [python3.834381], Container [test], Pod [test.default]

-v 사용:

13:44:41.529003 eth0 In IP (tos 0x4, ttl 45, id 45428, offset 0, flags [DF], proto TCP (6), length 52)
    139.178.84.217.443 > 172.19.0.2.42606: Flags [.], cksum 0x5284, seq 3173118145, ack 1385712707, win 118, options [nop,nop,TS val 134560683 ecr 1627716996], length 0
    Process (pid 553587, cmd /usr/bin/wget, args wget kernel.org)
    User (uid 1000)
    ParentProc (pid 553296, cmd /bin/sh, args sh)
    Container (name test, id d9028334568bf75a5a084963a8f98f78c56bba7f45f823b3780a135b71b91e95, image docker.io/library/alpine:3.18, labels {"io.cri-containerd.kind":"container","io.kubernetes.container.name":"test","io.kubernetes.pod.name":"test","io.kubernetes.pod.namespace":"default","io.kubernetes.pod.uid":"9e4bc54b-de48-4b1c-8b9e-54709f67ed0c"})
    Pod (name test, namespace default, UID 9e4bc54b-de48-4b1c-8b9e-54709f67ed0c, labels {"run":"test"}, annotations {"kubernetes.io/config.seen":"2024-07-21T12:41:00.460249620Z","kubernetes.io/config.source":"api"})

출력에 포함할 컨텍스트를 제한하려면 --context 사용:

# --context=process
09:32:09.718892 vethee2a302f wget.3553008 In IP 10.244.0.2.33426 > 139.178.84.217.80: Flags [S], seq 4113492822, win 64240, length 0

# -v --context=process
13:44:41.529003 eth0 In IP (tos 0x4, ttl 45, id 45428, offset 0, flags [DF], proto TCP (6), length 52)
    139.178.84.217.443 > 172.19.0.2.42606: Flags [.], cksum 0x5284, seq 3173118145, ack 1385712707, win 118, options [nop,nop,TS val 134560683 ecr 1627716996], length 0
    Process (pid 553587, cmd /usr/bin/wget, args wget kernel.org)

# -v --context=process,parentproc,container,pod
# or -v --context=process --context=parentproc --context=container --context=pod
13:44:41.529003 eth0 In IP (tos 0x4, ttl 45, id 45428, offset 0, flags [DF], proto TCP (6), length 52)
    139.178.84.217.443 > 172.19.0.2.42606: Flags [.], cksum 0x5284, seq 3173118145, ack 1385712707, win 118, options [nop,nop,TS val 134560683 ecr 1627716996], length 0
    Process (pid 553587, cmd /usr/bin/wget, args wget kernel.org)
    ParentProc (pid 553296, cmd /bin/sh, args sh)
    Container (name test, id d9028334568bf75a5a084963a8f98f78c56bba7f45f823b3780a135b71b91e95, image docker.io/library/alpine:3.18, labels {"io.cri-containerd.kind":"container","io.kubernetes.container.name":"test","io.kubernetes.pod.name":"test","io.kubernetes.pod.namespace":"default","io.kubernetes.pod.uid":"9e4bc54b-de48-4b1c-8b9e-54709f67ed0c"})
    Pod (name test, namespace default, UID 9e4bc54b-de48-4b1c-8b9e-54709f67ed0c, labels {"run":"test"}, annotations {"kubernetes.io/config.seen":"2024-07-21T12:41:00.460249620Z","kubernetes.io/config.source":"api"})

-A 사용:

14:44:34.457504 ens33 curl.205562 Out IP 10.0.2.15.39984 > 139.178.84.217.80: Flags [P.], seq 2722472188:2722472262, ack 892036871, win 64240, length 74, ParentProc [bash.180205]
E..r.,@[email protected].
.....T..0.P.E..5+g.P.......GET / HTTP/1.1
Host: kernel.org
User-Agent: curl/7.81.0
Accept: */*

-x 사용:

14:44:34.457504 ens33 curl.205562 Out IP 10.0.2.15.39984 > 139.178.84.217.80: Flags [P.], seq 2722472188:2722472262, ack 892036871, win 64240, length 74, ParentProc [bash.180205]
        0x0000:  4500 0072 de2c 4000 4006 6fbf 0a00 020f
        0x0010:  8bb2 54d9 9c30 0050 a245 a0fc 352b 6707
        0x0020:  5018 faf0 ecfe 0000 4745 5420 2f20 4854
        0x0030:  5450 2f31 2e31 0d0a 486f 7374 3a20 6b65
        0x0040:  726e 656c 2e6f 7267 0d0a 5573 6572 2d41
        0x0050:  6765 6e74 3a20 6375 726c 2f37 2e38 312e
        0x0060:  300d 0a41 6363 6570 743a 202a 2f2a 0d0a
        0x0070:  0d0a

-X 사용:

14:44:34.457504 ens33 curl.205562 Out IP 10.0.2.15.39984 > 139.178.84.217.80: Flags [P.], seq 2722472188:2722472262, ack 892036871, win 64240, length 74, ParentProc [bash.180205]
        0x0000:  4500 0072 de2c 4000 4006 6fbf 0a00 020f  E..r.,@[email protected].....
        0x0010:  8bb2 54d9 9c30 0050 a245 a0fc 352b 6707  ..T..0.P.E..5+g.
        0x0020:  5018 faf0 ecfe 0000 4745 5420 2f20 4854  P.......GET / HT
        0x0030:  5450 2f31 2e31 0d0a 486f 7374 3a20 6b65  TP/1.1..Host: ke
        0x0040:  726e 656c 2e6f 7267 0d0a 5573 6572 2d41  rnel.org..User-A
        0x0050:  6765 6e74 3a20 6375 726c 2f37 2e38 312e  gent: curl/7.81.
        0x0060:  300d 0a41 6363 6570 743a 202a 2f2a 0d0a  0..Accept: */*..
        0x0070:  0d0a                                     ..

🔝

Docker로 실행하기

ptcpdump의 Docker 이미지는 https://quay.io/repository/ptcpdump/ptcpdump 에 공개되어 있습니다.

docker run --privileged --rm -t --net=host --pid=host \
  -v /sys/fs/cgroup:/sys/fs/cgroup:ro \
  -v /var/run:/var/run:ro \
  -v /run:/run:ro \
  quay.io/ptcpdump/ptcpdump:latest ptcpdump -i any -c 2 tcp

🔝

백엔드

ptcpdump는 --backend 플래그를 통해 패킷 캡처에 사용할 특정 eBPF 기술을 지정할 수 있습니다.

이 플래그를 지정하지 않으면 기본값은 tc입니다.

호스트에서 curl http://1.1.1.1 실행:

--backend tc:

$ sudo ptcpdump -i any --backend tc host 1.1.1.1

12:11:28.009276 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [S], seq 615672474, win 64240, options [mss 1460,sackOK,TS val 2168208063 ecr 0,nop,wscale 7], length 0, ParentProc [bash.321004]
12:11:28.113779 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [S.], seq 1810787293, ack 615672475, win 64240, options [mss 1460], length 0, ParentProc [bash.321004]
12:11:28.113852 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672475, ack 1810787294, win 64240, length 0, ParentProc [bash.321004]
12:11:28.114216 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [P.], seq 615672475:615672545, ack 1810787294, win 64240, length 70, ParentProc [bash.321004]
12:11:28.115383 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [.], seq 1810787294, ack 615672545, win 64240, length 0, ParentProc [bash.321004]
12:11:28.534486 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [P.], seq 1810787294:1810787680, ack 615672545, win 64240, length 386, ParentProc [bash.321004]
12:11:28.534751 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672545, ack 1810787680, win 63854, length 0, ParentProc [bash.321004]
12:11:28.536982 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [F.], seq 615672545, ack 1810787680, win 63854, length 0, ParentProc [bash.321004]
12:11:28.538160 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [.], seq 1810787680, ack 615672546, win 64239, length 0, ParentProc [bash.321004]
12:11:28.642291 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [FP.], seq 1810787680, ack 615672546, win 64239, length 0, ParentProc [bash.321004]
12:11:28.642511 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672546, ack 1810787681, win 63854, length 0, ParentProc [bash.321004]

🔝

플래그

Usage:
  ptcpdump [flags] [expression] [-- command [args]]

Examples:
  sudo ptcpdump -i any tcp
  sudo ptcpdump -i eth0 -i lo
  sudo ptcpdump -i eth0 --pid 1234 port 80 and host 10.10.1.1
  sudo ptcpdump -i any --pname curl -A
  sudo ptcpdump -i any --container-id 36f0310403b1
  sudo ptcpdump -i any --container-name test
  sudo ptcpdump -i any -- curl ubuntu.com
  sudo ptcpdump -i any -w ptcpdump.pcapng
  sudo ptcpdump -i any -w - | tcpdump -n -r -
  sudo ptcpdump -i any -w - | tshark -r -
  ptcpdump -r ptcpdump.pcapng

Expression: see "man 7 pcap-filter"

Flags:
  -S, --absolute-tcp-sequence-numbers                Print absolute, rather than relative, TCP sequence numbers.
  --backend string                               Specify the backend to use for capturing packets. Possible values are "tc", "cgroup-skb", "tp-btf" and "socket-filter" (default "tc")
  --container-id string                          Filter by container id (only TCP and UDP packets are supported)
  --container-name string                        Filter by container name (only TCP and UDP packets are supported)
  --containerd-address string                    Address of containerd service (default "/run/containerd/containerd.sock")
  --context strings                              Specify which context information to include in the output (default [process,thread,parentproc,user,container,pod])
  --count                                        Print only on stdout the packet count when reading capture file instead of parsing/printing the packets
  --cri-runtime-address string                   Address of CRI container runtime service (default: uses in order the first successful one of [/var/run/dockershim.sock, /var/run/cri-dockerd.sock, /run/crio/crio.sock, /run/containerd/containerd.sock])
  --delay-before-handle-packet-events duration   Delay some durations before handle packet events
  -Q, --direction string                             Choose send/receive direction for which packets should be captured. Possible values are 'in', 'out' and 'inout' (default "inout")
  --disable-reverse-match                        Disable reverse match for TCP and UDP packets.
  --docker-address string                        Address of Docker Engine service (default "/var/run/docker.sock")
  --embed-keylog-to-pcapng -- CMD [ARGS]         Write TLS Key Log file to this path (experimental: only support unstripped Go binary and must combined with -- CMD [ARGS])
  --event-chan-size uint                         Size of event chan (default 20)
  --exec-events-worker-number uint               Number of worker to handle exec events (default 50)
  -F, --expression-file string                       Use file as input for the filter expression. An additional expression given on the command line is ignored.
  -W, --file-count uint                              Used in conjunction with the -C option, this will limit the number of files created to the specified number, and begin overwriting files from the beginning, thus creating a 'rotating' buffer.
  -C, --file-size fileSize                           Before writing a raw packet to a savefile, check whether the file is currently larger than file_size and, if so, close the current savefile and open a new one. Savefiles after the first savefile will have the name specified with the -w flag, with a number after it, starting at 1 and continuing upward.
  -f, --follow-forks                                 Trace child processes as they are created by currently traced processes when filter by process
  -h, --help                                         help for ptcpdump
  -i, --interface strings                            Interfaces to capture (default [lo])
  --kernel-btf string                            specify kernel BTF file (default: uses in order the first successful one of [/sys/kernel/btf/vmlinux, /var/lib/ptcpdump/btf/vmlinux, /var/lib/ptcpdump/btf/vmlinux-$(uname -r), /var/lib/ptcpdump/btf/$(uname -r).btf, download BTF file from https://mirrors.openanolis.cn/coolbpf/btf/ and https://github.com/aquasecurity/btfhub-archive/]
    -D, --list-interfaces                              Print the list of the network interfaces available on the system
  --log-level string                             Set the logging level ("debug", "info", "warn", "error", "fatal") (default "warn")
  --micro                                        Shorthands for --time-stamp-precision=micro
  --nano                                         Shorthands for --time-stamp-precision=nano
  --netns strings                                Path to an network namespace file or name (default [/proc/self/ns/net])
  -n, --no-convert-addr count                        Don't convert addresses (i.e., host addresses, port numbers, etc.) to names
  -#, --number                                       Print an optional packet number at the beginning of the line
  --oneline                                      Print parsed packet output in a single line
  --pid uints                                    Filter by process IDs (only TCP and UDP packets are supported) (default [])
  --pname string                                 Filter by process name (only TCP and UDP packets are supported)
  --pod-name string                              Filter by pod name (format: NAME.NAMESPACE, only TCP and UDP packets are supported)
  --print                                        Print parsed packet output, even if the raw packets are being saved to a file with the -w flag
  -A, --print-data-in-ascii                          Print each packet (minus its link level header) in ASCII
  -x, --print-data-in-hex count                      When parsing and printing, in addition to printing the headers of each packet, print the data of each packet in hex
  -X, --print-data-in-hex-ascii count                When parsing and printing, in addition to printing the headers of each packet, print the data of each packet in hex and ASCII
  -t, --print-timestamp count                        control the format of the timestamp printed in the output
  -q, --quiet                                        Quiet output. Print less protocol information so output lines are shorter
  -r, --read-file string                             Read packets from file (which was created with the -w option). e.g. ptcpdump.pcapng
  -c, --receive-count uint                           Exit after receiving count packets
  -s, --snapshot-length uint32                       Snarf snaplen bytes of data from each packet rather than the default of 262144 bytes (default 262144)
  --time-stamp-precision string                  When capturing, set the time stamp precision for the capture to the format (default "micro")
  --uid uints                                    Filter by user IDs (only TCP and UDP packets are supported) (default [])
  -v, --verbose count                                When parsing and printing, produce (slightly more) verbose output
  --version                                      Print the ptcpdump and libpcap version strings and exit
  -w, --write-file string                            Write the raw packets to file rather than parsing and printing them out. They can later be printed with the -r option. Standard output is used if file is '-'. e.g. ptcpdump.pcapng
  --write-keylog-file -- CMD [ARGS]              Write TLS Key Log file to this path (experimental: only support unstripped Go binary and must combined with -- CMD [ARGS])

🔝

tcpdump와 비교| 옵션 | tcpdump | ptcpdump |

|---------------------------------------------------|---------|--------------------------| | expression | ✅ | ✅ | | -i interface, --interface=interface | ✅ | ✅ | | -w x.pcapng | ✅ | ✅ (with process info) | | -w x.pcap | ✅ | ✅ (without process info) | | -w - | ✅ | ✅ | | -r x.pcapng, -r x.pcap | ✅ | ✅ | | -r - | ✅ | ✅ | | --pid process_id | | ✅ | | --pname process_name | | ✅ | | --uid user_id | | ✅ | | --container-id container_id | | ✅ | | --container-name container_name | | ✅ | | --pod-name pod_name.namespace | | ✅ | | -f, --follow-forks | | ✅ | | -- command [args] | | ✅ | | --netns path_to_net_ns | | ✅ | | --print | ✅ | ✅ | | -A | ✅ | ✅ | | -B bufer_size, --buffer-size=buffer_size | ✅ | | | -c count | ✅ | ✅ | | --count | ✅ | ✅ | | -C *file_size | ✅ | ✅ | | -d | ✅ | | | -dd | ✅ | | | -ddd | ✅ | | | -D, --list-interfaces | ✅ | ✅ | | -e | ✅ | | | -f | ✅ | ⛔ | | -F file | ✅ | ✅ | | -G rotate_seconds | ✅ | | | -h, --help | ✅ | ✅ | | -H | ✅ | | | -I, --monitor-mode | ✅ | | | --immediate-mode | ✅ | | | -j , --time-stamp-type= | ✅ | | | --time-stamp-precision= | ✅ | ✅ | | -J, --list-time-stamp-types | ✅ | | | --micro | ✅ | ✅ | | --nano | ✅ | ✅ | | -K, --dont-verify-checksums | ✅ | | | -l | ✅ | | | -L, --list-data-link-types | ✅ | | | -m | ✅ | | | -M | ✅ | | | -n | ✅ | ✅ | | -N | ✅ | | | -#, --number | ✅ | ✅ | | -O, --no-optimize | ✅ | | | -p, --no-promiscuous-mode | ✅ | ⛔ | | -q | ✅ | ✅ | | -Q , --direction= | ✅ | ✅ | | -S, --absolute-tcp-sequence-numbers | ✅ | ✅ | | -s , --snapshot-length= | ✅ | ✅ | | -T | ✅ | | | -t | ✅ | ✅ | | -tt | ✅ | ✅ | | -ttt | ✅ | ✅ | | -tttt | ✅ | ✅ | | -ttttt | ✅ | ✅ | | -u | ✅ | | | -U, --packet-buffered | ✅ | | | -y , --linktype= | ✅ | | | -v | ✅ | ✅ | | -vv | ✅ | ⭕ | | -vvv | ✅ | ⭕ | | -V | ✅ | | | --version | ✅ | ✅ | | -W | ✅ | ✅ | | -x | ✅ | ✅ | | -xx | ✅ | ✅ | | -X | ✅ | ✅ | | -XX | ✅ | ✅ | | -z | ✅ | | | -Z , --relinquish-privileges= | ✅ | |

🔝

개발하기

의존성

시스템에 다음 의존성이 설치되어 있는지 확인하세요:

Go >= 1.23
Clang/LLVM >= 14
Bison >= 3.8
Lex/Flex >= 2.6
GCC
GNU make
autoconf
libelf

Debian/Ubuntu 시스템에서는 다음 명령으로 대부분을 설치할 수 있습니다:

sudo apt-get update
sudo apt-get install -y build-essential clang llvm bison flex \
     make autoconf libelf-dev

빌드하기

ptcpdump 빌드는 두 가지 주요 단계로 구성됩니다: eBPF 바이트코드 생성 (eBPF 코드를 수정하지 않을 경우 선택 사항) 및 Go 애플리케이션 컴파일입니다.

1. eBPF 프로그램 빌드 (선택 사항)

이 단계에서는 bpf/ 디렉터리에 있는 C eBPF 코드를 여러 대상 아키텍처(amd64, arm64, arm)용 바이트코드로 컴파일합니다. 생성된 바이트코드는 최종 ptcpdump Go 실행 파일에 포함됩니다. 이 단계는 eBPF 소스 코드를 수정하거나 사전 생성된 파일이 없는 경우에만 실행하면 됩니다.

네이티브 빌드: 로컬에 Clang/LLVM이 설치되어 있어야 합니다.
```
make build-bpf
```
Docker 사용: 필요한 C 빌드 도구 체인이 로컬에 없을 때 사용합니다. 사전 구성된 개발 이미지를 활용합니다.
```
make build-bpf-via-docker
```

2. `ptcpdump` 실행 파일 빌드

eBPF 바이트코드가 생성되었는지 확인한 후 (또는 사전 생성된 것을 사용하여) 기본 Go 애플리케이션을 컴파일할 수 있습니다.

정적 빌드 (권장): 이 방식은 ptcpdump와 모든 의존성을 함께 빌드하며, 번들된 libpcap(lib/libpcap 서브모듈)을 포함하여 최종 실행 파일에 정적으로 연결합니다. 그 결과 외부 라이브러리 의존성이 없는 휴대용 바이너리가 생성됩니다. 이것이 기본이자 권장되는 방법입니다.
- 네이티브 빌드: 이 명령은 먼저 번들된 libpcap이 컴파일되었는지 확인한 다음 정적 ptcpdump 실행 파일을 빌드합니다.
```
# This first builds libpcap, then builds ptcpdump statically
make build
```
- Docker 사용: 개발 컨테이너 내부에서 정적 실행 파일을 빌드합니다.
```
make build-via-docker
```
동적 빌드: 이 방식은 ptcpdump를 시스템에 설치된 libpcap 라이브러리에 동적으로 연결하여 빌드합니다. 시스템에 미리 libpcap 개발 패키지가 설치되어 있어야 합니다(예: Debian/Ubuntu의 libpcap-dev, Fedora/CentOS의 libpcap-devel). 결과물은 더 작은 실행 파일이지만 대상 시스템에 이 필요합니다.

최종 실행 파일은 프로젝트 루트 디렉터리에 생성됩니다 (예: ./ptcpdump).

🔝

관련 프로젝트

Flownix

Flownix는 Linux 시스템을 위한 그래픽 기반 실시간 흐름(flow) 네트워크 트래픽 분석기입니다. ptcpdump 바이너리를 사용하여 패킷을 캡처하고, 각 흐름에 대한 상세 메타데이터를 추출하여 SQLite에 저장하며, 깔끔하고 반응형인 Dash 웹 인터페이스로 모든 것을 시각화합니다.

flownix overview 1 flownix overview 2

저장소: VISION-183/flownix

🔝

$ sudo ptcpdump -i any --backend tc host 1.1.1.1 12:20:31.336397 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.336533 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.336794 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0 12:20:31.468027 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0 12:20:31.467769 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.467781 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468025 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468042 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468061 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0 12:20:31.468089 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468093 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468110 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71 12:20:31.468464 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0 12:20:31.468535 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468558 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575461 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386 12:20:31.575576 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575613 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575877 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575890 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575916 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0 12:20:31.577079 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.577107 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.577146 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0 12:20:31.577736 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0 12:20:31.577761 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.577773 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687029 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0 12:20:31.687166 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687214 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687398 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687413 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687453 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0

$ sudo ptcpdump -i any --backend cgroup-skb host 1.1.1.1 12:20:31.336108 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, Thread [curl.405939], ParentProc [bash.405653], Container [musing_banach] 12:20:31.467819 45@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.467876 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468072 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, Thread [curl.405939], ParentProc [bash.405653], Container [musing_banach] 12:20:31.468681 45@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575750 45@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575848 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.576982 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, Thread [curl.405939], ParentProc [bash.405653], Container [musing_banach] 12:20:31.577843 45@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687357 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]

$ sudo ptcpdump -i any --backend socket-filter host 1.1.1.1 12:20:31.336456 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.336818 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0 12:20:31.467700 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0 12:20:31.467776 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.467784 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468030 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468066 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0 12:20:31.468092 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468122 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71 12:20:31.468461 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0 12:20:31.468552 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468565 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575416 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386 12:20:31.575601 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575623 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575889 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575928 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0 12:20:31.577085 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.577153 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0 12:20:31.577733 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0 12:20:31.577770 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.577778 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687015 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0 12:20:31.687206 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687223 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687409 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687464 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0

$ sudo ptcpdump -i any --backend tp-btf host 1.1.1.112:20:31.336316 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.336382 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.336443 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.336801 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0 12:20:31.467682 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0 12:20:31.467773 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.467783 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.467811 eth0@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468005 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468022 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468029 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468063 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0 12:20:31.468078 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468085 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468091 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468112 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71 12:20:31.468446 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0 12:20:31.468543 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468562 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.468668 eth0@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575358 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386 12:20:31.575586 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575617 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575732 eth0@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575855 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575870 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575883 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.575920 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0 12:20:31.577059 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.577074 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.577082 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.577148 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0 12:20:31.577704 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0 12:20:31.577764 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.577774 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.577835 eth0@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.686955 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0 12:20:31.687183 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687218 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687316 eth0@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687369 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687388 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687404 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach] 12:20:31.687457 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0

CONFIG_BPF=y	공통	필수
CONFIG_BPF_SYSCALL=y	공통	필수
CONFIG_DEBUG_INFO=y	공통	필수
CONFIG_DEBUG_INFO_BTF=y	공통	필수
CONFIG_KPROBES=y	공통	필수
CONFIG_KPROBE_EVENTS=y	공통	필수
CONFIG_TRACEPOINTS=y	공통	필수
CONFIG_PERF_EVENTS=y	공통	필수
CONFIG_NET=y	공통	필수
CONFIG_NET_SCHED=y	tc	필수
CONFIG_NET_CLS_BPF=y	tc	필수
CONFIG_NET_ACT_BPF=y	tc	필수
CONFIG_NET_SCH_INGRESS=y	tc	필수
CONFIG_CGROUPS=y	cgroup-skb	필수
CONFIG_CGROUP_BPF=y	cgroup-skb	필수
CONFIG_FILTER=y	socket-filter	필수
CONFIG_BPF_TRAMPOLINE=y	tp-btf	필수
CONFIG_SECURITY=y	공통	선택 (권장)
CONFIG_BPF_TRAMPOLINE=y	공통	선택 (권장)
CONFIG_SOCK_CGROUP_DATA=y	공통	선택 (권장)
CONFIG_BPF_JIT=y	공통	선택 (권장)
CONFIG_CGROUP_BPF=y	tc, tp-btf, socket-filter	선택 (권장)
CONFIG_CGROUPS=y	tc, tp-btf, socket-filter	선택 (권장)

eBPF 프로그램 유형	`BPF_PROG_TYPE_SCHED_CLS`	`BPF_PROG_TYPE_CGROUP_SKB`	`BPF_PROG_TYPE_SOCKET_FILTER`	`BPF_PROG_TYPE_TRACING`
L2 데이터	✅	❌	✅	✅
네트워크 네임스페이스 간	❌	✅	❌	✅
커널 버전	5.2+	5.2+	5.4+	5.5+
cgroup v2	권장	필수	권장	권장

ptcpdump

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ptcpdump

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tcpdump와 비교| 옵션 | tcpdump | ptcpdump |

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1. eBPF 프로그램 빌드 (선택 사항)

2. ptcpdump 실행 파일 빌드

관련 프로젝트

Flownix

2. `ptcpdump` 실행 파일 빌드