0000067: MyDNS and mydnsexport handle special characters in TXT records differently

Viewing Issue Advanced Details [ Jump to Notes ]

[ View Simple ] [ Issue History ] [ Print ]

Category

Severity

Reproducibility

Date Submitted

Last Update

0000067

[MyDNS-NG] Global

minor

always

2011-09-08 16:46

2018-02-07 20:22

Reporter

joezhou

View Status

public

Assigned To

Priority

normal

Resolution

open

Platform

Status

new

Projection

none

OS Version

ETA

none

Fixed in Version

Product Version

1.2.8

Target Version

Product Build

Summary

0000067: MyDNS and mydnsexport handle special characters in TXT records differently

Description

MyDNS would automatically quote strings, and add '\' to special characters. mydnsexport would quote strings, but would not escape special characters. This creates a conflict on how strings such as DKIM domain key should be stored in the database.

For example,

# 3rdparty/bin/mydnsexport a10002.cpanel.test

default._domainkey.a10002.cpanel.test. 14400 IN TXT "k=rsa\; p=MHwwDQYJKoZIhvcNAQEBBQADawAwaAJhALZw57zoM3vu9ujjgbfv9veMAFTxrtQ4ZTBow92z7awuuB2xGTSn2LN1UQ9rpHIB1+vX+vuoxdlKywcMj2gydxTkg/RsXu4tQiYjLGlaOW0cdujSzgk5ZKKLnPcSsatTdwIDAQAB\;"

# dig @localhost TXT default._domainkey.a10002.cpanel.test

;; ANSWER SECTION:
default._domainkey.a10002.cpanel.test. 86400 IN TXT "k=rsa\\\; p=MHwwDQYJKoZIhvcNAQEBBQADawAwaAJhALZw57zoM3vu9ujjgbfv9veMAFTxrtQ4ZTBow92z7awuuB2xGTSn2LN1UQ9rpHIB1+vX+vuoxdlKywcMj2gydxTkg/RsXu4tQiYjLGlaOW0cdujSzgk5ZKKLnPcSsatTdwIDAQAB\\\;"

# 3rdparty/bin/mydnsexport a10002.cpanel.test

default._domainkey.a10002.cpanel.test. 14400 IN TXT "k=rsa; p=MHwwDQYJKoZIhvcNAQEBBQADawAwaAJhALZw57zoM3vu9ujjgbfv9veMAFTxrtQ4ZTBow92z7awuuB2xGTSn2LN1UQ9rpHIB1+vX+vuoxdlKywcMj2gydxTkg/RsXu4tQiYjLGlaOW0cdujSzgk5ZKKLnPcSsatTdwIDAQAB;"

# dig @localhost TXT default._domainkey.a10002.cpanel.test

default._domainkey.a10002.cpanel.test. 86400 IN TXT "k=rsa\; p=MHwwDQYJKoZIhvcNAQEBBQADawAwaAJhALZw57zoM3vu9ujjgbfv9veMAFTxrtQ4ZTBow92z7awuuB2xGTSn2LN1UQ9rpHIB1+vX+vuoxdlKywcMj2gydxTkg/RsXu4tQiYjLGlaOW0cdujSzgk5ZKKLnPcSsatTdwIDAQAB\;"

Steps To Reproduce

Additional Information

Also, the column size for data is too small as suggested in MyDNS manual. This would result in the truncation of larger records like DKIM domain keys.

Tags

No tags attached.

Attached Files

mydns-ng-dkim.patch [^] (1,793 bytes) 2018-02-07 20:15

Relationships

Notes
(0000217) elrido (reporter) 2018-02-07 20:22	This is a very late reply, but only now have I hit the issues with the export of DKIM records. The patch that I attached allows for TXT records of up to 1024 bytes (given the data column is expanded accordingly). Only the output of the mydnsexport for bind is modified, so it does not address this report in that regard.

Issue History
Date Modified	Username	Field	Change
2011-09-08 16:46	joezhou	New Issue
2018-02-07 20:15	elrido	File Added: mydns-ng-dkim.patch
2018-02-07 20:22	elrido	Note Added: 0000217

Mantis 1.1.6[^]