diff options
Diffstat (limited to 'man/coredns-debug.7')
| -rw-r--r-- | man/coredns-debug.7 | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/man/coredns-debug.7 b/man/coredns-debug.7 index 4ec4fe710..3ec6c2282 100644 --- a/man/coredns-debug.7 +++ b/man/coredns-debug.7 @@ -1,7 +1,7 @@ .\" generated with Ronn/v0.7.3 .\" http://github.com/rtomayko/ronn/tree/0.7.3 . -.TH "COREDNS\-DEBUG" "7" "June 2018" "CoreDNS" "CoreDNS plugins" +.TH "COREDNS\-DEBUG" "7" "July 2018" "CoreDNS" "CoreDNS plugins" . .SH "NAME" \fIdebug\fR \- disables the automatic recovery upon a crash so that you\'ll get a nice stack trace\. @@ -20,6 +20,28 @@ debug . .fi . +.P +Some plugin will debug log DNS messages\. This is done in the following format: +. +.IP "" 4 +. +.nf + +debug: 000000 00 0a 01 00 00 01 00 00 00 00 00 01 07 65 78 61 +debug: 000010 6d 70 6c 65 05 6c 6f 63 61 6c 00 00 01 00 01 00 +debug: 000020 00 29 10 00 00 00 80 00 00 00 +debug: 00002a +. +.fi +. +.IP "" 0 +. +.P +Using \fBtext2pcap\fR (part of Wireshark) this can be converted back to binary, with the following command line: \fBtext2pcap \-i 17 \-u 53,53\fR\. Where 17 is the protocol (UDP) and 53 are the ports\. These ports allow wireshark to detect these packets as DNS messages\. +. +.P +Each plugin can decide to dump messages to aid in debugging\. +. .SH "EXAMPLES" Disable the ability to recover from crashes and show debug logging: . @@ -34,4 +56,6 @@ Disable the ability to recover from crashes and show debug logging: .fi . .IP "" 0 - +. +.SH "ALSO SEE" +https://www\.wireshark\.org/docs/man\-pages/text2pcap\.html\. |