Package: courier-mta Version: 0.65.0-3 Severity: normal
It seems this default setting may contradict RFC 3493. > On 01/20/2011 03:31 PM, Sam Varshavchik wrote: >> Courier's code relies on being able to use IPv6 sockets to connect to >> either IPv4 or IPv6 addresses. There is no way to configure that an IPv4 >> socket be used for IPv4 addresses, and IPv6 sockets for IPv6 addresses. >> Doing something like this requires some code rewriting. > > Wouldn't the easiest fix be to use IPV6_V6ONLY mentioned in section 5.3 > of RFC 3493? No, that's something that's unrelated. But RFC 3493 also serves as a clear counterexample to what Debian's doing. The language in section 3.7 is just as clear as day: Applications may use AF_INET6 sockets to open TCP connections to IPv4 nodes, or send UDP packets to IPv4 nodes, by simply encoding the destination's IPv4 address as an IPv4-mapped IPv6 address, and passing that address, within a sockaddr_in6 structure, in the connect() or sendto() call. -- System Information: Debian Release: 6.0 APT prefers testing APT policy: (500, 'testing') Architecture: i386 (i686) Kernel: Linux 2.6.32-5-686 (SMP w/2 CPU cores) Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Shell: /bin/sh linked to /bin/bash Versions of packages courier-mta depends on: ii courier-authlib 0.63.0-3 Courier authentication library ii courier-base 0.65.0-3 Courier mail server - base system ii debconf [debconf-2.0] 1.5.36 Debian configuration management sy ii libc6 2.11.2-7 Embedded GNU C Library: Shared lib ii libgcc1 1:4.4.5-8 GCC support library ii libgdbm3 1.8.3-100 GNU dbm database routines (runtime ii libperl5.10 5.10.1-17 shared Perl library ii libstdc++6 4.4.5-8 The GNU Standard C++ Library v3 courier-mta recommends no packages. Versions of packages courier-mta suggests: ii bsd-mailx [mail-re 8.1.2-0.20100314cvs-1 simple mail user agent pn courier-doc <none> (no description available) ii courier-filter-per 0.200 purely Perl-based mail filter fram ii mutt [mail-reader] 1.5.20-9+squeeze1 text-based mailreader supporting M -- Configuration Files: /etc/courier/aliases/system [Errno 13] Permission denied: u'/etc/courier/aliases/system' /etc/courier/courierd changed [not included] /etc/courier/esmtpauthclient [Errno 13] Permission denied: u'/etc/courier/esmtpauthclient' /etc/courier/esmtpd changed [not included] /etc/courier/esmtpd-msa changed [not included] /etc/courier/smtpaccess/default changed [not included] -- debconf information excluded -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
