[nsd-users] Nothing in nsd tap capture

Bac Nguyen Huy huybac.nguyen at gmail.com
Wed Jun 24 14:24:10 UTC 2020


Dear
I'm Bac, Nguyen Huy
I'm trying DNSTap on NSD but nothing in my captured.
Please help me!

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I've
- installed nsd enable-dnstap, NSD version 4.2.4 on centos 7
- edit nsd.conf to enable dnstap











*# DNSTAP config section, if compiled with thatdnstap: # set this to yes
and set one or more of dnstap-log-..-messages to yes. dnstap-enable: yes
dnstap-socket-path: "/var/run/dnstap.sock" dnstap-send-identity: yes
dnstap-send-version: yes dnstap-identity: "" dnstap-version: ""
dnstap-log-auth-query-messages: yes dnstap-log-auth-response-messages: yes*


- Install fstrm_capture
- Install dnstap-read

Then
*- fstrm_capture -t protobuf:dnstap.Dnstap -u /var/run/dnstap.sock -w
/var/run/dnstap.logfile*
- start nsd: /usr/local/sbin/nsd -c /etc/nsd/nsd.conf
- dig @ my nsd server to test.
- ctrl c to stop fstrm_capture
But: Nothing in my captured





*[root at nsd02slave run]# fstrm_capture -t protobuf:dnstap.Dnstap -u
/var/run/dnstap.sock -w /var/run/dnstap.logfilefstrm_capture: listening on
socket path /var/run/dnstap.sockfstrm_capture: opened output file
/var/run/dnstap.logfile^Cfstrm_capture: shutting downfstrm_capture: closed
output file /var/run/dnstap.logfile (wrote 2 frames, 54 bytes)*

Nothing in my file


*[root at nsd02slave ~]# dnstap-read -p /var/run/dnstap.logfile
[root at nsd02slave ~]# *






*[root at nsd02slave ~]# ls -l /var/run/..........-rw-r--r--.  1 root
  root             54 Jun 24 21:04 dnstap.logfilesrwxr-xr-x.  1 root
    root              0 Jun 24 20:46 dnstap.sock[root at nsd02slave ~]# nsd
-vNSD version 4.2.4*

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-- 
_____________________________________
Mr Nguyen Huy Bac
Đài DNS (VNNIC)
Tel: 04.35564944
Email: huybac.nguyen at gmail.com
Số TK: 13320037822012
Ngân hàng: Techcombank Chi nhánh Đông Đô – Hà Nội.
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