$ ./tcpw -h
Usage: tcpw [options] <command args...>
Options:
--udp, -U Trace UDP sockets
--unix, -X Trace Unix domain sockets
--help, -h Print this help messageBy default, tcpw only traces TCP socket, if you want to trace UDP socket, you can use --udp/-U option; if you want to trace Unix domain socket, you can use --unix/-X option.
Example of tracing TCP socket:
$ ./tcpw curl https://google.com
2024/12/21 14:42:15 tcpw: pid=97849 comm=curl af=AF_INET proto=TCP 192.168.241.133:46182 -> 142.251.10.101:443
<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">
<TITLE>301 Moved</TITLE></HEAD><BODY>
<H1>301 Moved</H1>
The document has moved
<A HREF="https://www.google.com/">here</A>.
</BODY></HTML>Example of tracing UDP socket:
$ ./tcpw -U nslookup google.com
2024/12/21 14:44:36 tcpw: pid=98464 comm=isc-net-0000 af=AF_INET proto=UDP 127.0.0.1:37324 -- 127.0.0.53:53
Server: 127.0.0.53
Address: 127.0.0.53#53
Non-authoritative answer:
...Example of tracing Unix domain socket:
$ ./tcpw -X ../sockdump/sockdump-example
2024/12/21 14:45:24 serving
2024/12/21 14:45:24 tcpw: pid=98505 comm=sockdump-exampl af=AF_UNIX proto=UNIX-STREAM path=/tmp/uskdump.sock
2024/12/21 14:45:24 got response
...