Programming language: Go
License: MIT License
Latest version: v0.1.4

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TCPProbe is a tool for network path and service monitoring. It exposes information about socket’s underlying TCP session, TLS and HTTP.



  • TCP socket statistics
  • Supports TCP/TLS/HTTP
  • Prometheus exporter
  • Probing multiple hosts


usage: tcpprobe options target(s)

   --ipv6, -6                           connect only to IPv6 address (default: false)
   --ipv4, -4                           connect only to IPv4 address (default: false)
   --http2                              force to use HTTP version 2 (default: false)
   --json                               print in json format (default: false)
   --prom-disabled                      disable prometheus (default: false)
   --quiet, -q                          turn off tcpprobe output (default: false)
   --insecure, -i                       don't validate the server's certificate (default: false)
   --server-name value, -n value        server name is used to verify the hostname (TLS)
   --source-addr value, -S value        source address in outgoing request
   --prom-addr value, -p value          specify prometheus exporter IP and port (default: ":8081")
   --filter value, -f value             given metric(s) with semicolon delimited
   --count value, -c value              stop after sending count requests (default: 1)
   --timeout value, -t value            specify a timeout for dialing to targets (default: 1s)
   --wait value, -w value               time to wait after each request (default: 1s)
   --tos value, -z value                set the IP type of service (default: depends on the OS)
   --ttl value, -m value                set the IP time to live (default: depends on the OS)
   --socket-priority value, -r value    set queuing discipline (default: depends on the OS)
   --mss value, -M value                TCP max segment size (default: depends on the OS)
   --tcp-nodelay-disabled, -o           disable Nagle's algorithm (default: false)
   --metrics                            show metric's descriptions (default: false)
   --help, -h                           show help (default: false)

Command line (download Linux binary)

tcpprobe https://www.google.com
Target:https://www.google.com IP: Timestamp:1604289587
State:1 CaState:0 Retransmits:0 Probes:0 Backoff:0 Options:4 Rto:202000 Ato:40000 SndMss:1460 RcvMss:1460 Unacked:0 Sacked:0 Lost:0 Retrans:0 Fackets:0 LastDataSent:70 LastAckSent:0 LastDataRecv:1 LastAckRecv:1 Pmtu:1500 RcvSsthresh:52560 Rtt:1856 Rttvar:1413 SndSsthresh:2147483647 SndCwnd:10 Advmss:1460 Reordering:3 RcvRtt:0 RcvSpace:29200 TotalRetrans:0 HTTPStatusCode:200 HTTPRcvdBytes:14682 HTTPRequest:105725 HTTPResponse:1092 DNSResolve:7222 TCPConnect:2856 TLSHandshake:36717 TCPConnectError:0 DNSResolveError:0 


docker run --rm mehrdadrad/tcpprobe

Docker Compose

Run TCPProbe and Prometheus

docker-compose up -d

Open your browser and try http://localhost:9090 You can edit the docker-compose.yml to customize the options and target(s).


This project is licensed under MIT license. Please read the LICENSE file.


Welcomes any kind of contribution, please follow the next steps:

  • Fork the project on github.com.
  • Create a new branch.
  • Commit changes to the new branch.
  • Send a pull request.

*Note that all licence references and agreements mentioned in the tcpprobe README section above are relevant to that project's source code only.