Multiple SRV records with different port and target not allowed

I am receiving a record duplicate error when trying to define a SRV record on different ports or to different targets.

Example 1:

_ldap._tcp.dc._msdcs.test123.local=0 50 389 test123.local
_ldap._tcp.dc._msdcs.test123.local=0 50 53 test123.local

Example 2:

_ldap._tcp.dc._msdcs.test123.local=0 50 389 test123.local
_ldap._tcp.dc._msdcs.test123.local=0 50 389 foo.test123.local

Error message is:

Traceback (most recent call last):
  File "dnschef.py", line 516, in <module>
    config.read(options.file)
  File "c:\pythonPath\lib\configparser.py", line 697, in read
    self._read(fp, filename)
  File "c:\pythonPath\lib\configparser.py", line 1093, in _read
    raise DuplicateOptionError(sectname, optname,
configparser.DuplicateOptionError: While reading from '../dnschef.ini' [line 54]: option '_ldap._tcp.dc._msdcs.test123.local' in section 'SRV' already exists

This setting should be allowed and another example can be seen in https://en.wikipedia.org/wiki/SRV_record

Note: I can use the executable version in windows (0.3) and it does not show me any error.

[irsdl]

I ran it once again (windows version 0.3) to see what I did previously, it seems it did only use the last entry as you said!

[amard33p]

Sorry I forgot to comment here, I confirm the above bad behaviour and that’s why I am still using the 0.3 version.

I believe you are referring to this commit.
Even with v 0.3, it only returns the last entry of the [SRV] section only

[SRV]
; FORMAT: priority weight port target
_http._tcp.thesprawl.org=0 5 5060 www.fake1.com
_http._tcp.thesprawl.org=1 5 5070 www.fake2.com

[root@ub18-01:~] nslookup -type=SRV _http._tcp.thesprawl.org
Server:         127.0.0.1
Address:        127.0.0.1#53

_http._tcp.thesprawl.org        service = 1 5 5070 www.fake2.com.