From:  Hartmut Figge <h.figge@gmx.de>
Date:  28 Apr 2018 12:20:15 Hong Kong Time
Newsgroup:  news.mozilla.org/mozilla.dev.planning
Subject:  

Re: xinetd & qpopper

NNTP-Posting-Host:  85.212.133.86

Hartmut Figge:

># IPv4 and IPv6 localhost aliases
>127.0.0.1 localhost
>::1   localhost
>
>so it seems, that the second line is taken for localhost and no longer
>the first line. Why?

Connection via telnet fails...

hafi@i5-64 ~ $ telnet localhost pop3
Trying ::1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.

...unless I force IPv4 address resolution.

hafi@i5-64 ~ $ telnet -4 localhost pop3
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
+OK ready
quit
+OK Pop server at i5-64.lan.triffids.de signing off.
Connection closed by foreign host.

Hm.

Hartmut