How-to debug ntopng

Owned by Matthew Hierholzer
Last updated: Dec 11, 2023
1 min read

This article explains how to debug ntopng while working with Checkmk

LAST TESTED ON CHECKMK 2.0.0P1

Table of Contents

More information on ntop can be found here: https://www.ntop.org/guides/ntopng/api/index.html

Debugging


Show active flows

root@mylinuxhost ~# curl  -u admin:cmk1234567 "http://127.0.0.1:3000/lua/rest/v1/get/flow/active.lua?ifid=0"   
{"rc_str_hr":"Success","rc":0,"rsp":{"perPage":2000,"currentPage":1,"sort":[["column_column_bytes","asc"]],"totalRows":0,"data":[]},"rc_str":"OK"}

Get flow counters for the L4 protocol

root@mylinuxhost ~# curl  -u admin:cmk1234567 "http://127.0.0.1:3000/lua/rest/v1/get/flow/l4/counters.lua?ifid=0"
{"rsp":[],"rc_str_hr":"Success","rc":0,"rc_str":"OK"}

Get flow counters for the L7 protocol

root@mylinuxhost ~# curl  -u admin:cmk1234567 "http://127.0.0.1:3000/lua/rest/v1/get/flow/l7/counters.lua?ifid=0"
{"rsp":[],"rc_str_hr":"Success","rc":0,"rc_str":"OK"}

Get ntop alerts

root@mylinuxhost ~# curl -u admin:cmk1234567 -H "Content-Type: application/json" -d '{"ifid": "0", "status": "historical-flows", "epoch_begin": 1590710400, "epoch_end": 1673652781}' http://localhost:3000/lua/rest/v1/get/alert/ts.lua

Get ntop top talker

Only available in the pro version https://www.ntop.org/guides/ntopng/web_gui/dashboard.html#dashboard-in-the-professional-version


For interfaces

root@mylinuxhost ~# curl  -u admin:cmk1234567 "http://127.0.0.1:3000/lua/pro/rest/v1/get/interface/top/local/talkers.lua?ifid=0"
root@mylinuxhost ~# curl  -u admin:cmk1234567 "http://127.0.0.1:3000/lua/pro/rest/v1/get/host/top/remote/talkers.lua?ifid=0"

For hosts

root@mylinuxhost ~# curl  -u admin:cmk1234567 "http://127.0.0.1:3000/lua/pro/rest/v1/get/host/top/remote/talkers.lua?ifid=0"