Re: 1.19-rc4 and IPv6

Hello,

Thank you for your reply.

On Wed, Feb 23, 2011 at 11:18:46AM +0900, Simon Horman wrote:
> Hi Chris,
> 
> somewhat non-intuitively you need to tell perdition which IPv6
> addresses to bind to. For example, you could bind to all addresses
> using.
> 
> perdition --bind_address '[::]'
>

I tried before to bind to a specific hostname (which resolves to both
an IPv4 and an IPv6 address), but it only binded to the IPv6 address and
not to the IPv4 one.

> Unfortunately while preparing this email I noticed that there is a bug
> such that you can't simultaneously bind to the wildcard IPv4 and IPv6
> addresses. That is, the following fails:
> 
> perdition --bind_address 0.0.0.0,'[::]'
> 
> Even though you may expect that is actually the default behaviour.
> 
> I'll look into resolving these problems.
> 
> In the mean I suggest using --bind_address to specify the
> specific IPv4 and IPv6 addresses to bind to. You can have
> more than once of each.
> 
> e.g.
> 
> ./perdition/perdition --bind_address 10.4.3.135,[2001:3e0:a5f:403:7051:7bff:fe70:9724],[2001:3e0:a5f:403:a6ba:dbff:fefe:59fa]

Hmmm...
I tried that and it seems vanessa_socket is not willing to accomodate that..

Here is what I see when I enable the debug option:

Feb 23 10:46:25 nioo perdition.pop3[2980]: Starting perdition version=1.19-rc4 protocol=POP3 
Feb 23 10:46:25 nioo perdition.pop3[2980]: add_domain="", authenticate_in=off, authenticate_timeout=1800, bind_address="81.188.160.70, [2001:06f8:0200:0001:0000:0000:0001:0070]", client_server_specification=off, config_file="/etc/perdition/perdition.conf", connection_limit=0, connection_logging=off, connect_relog=300, debug=on, domain_delimiter="@", explicit_domain="", group="mail", imap_capability="IMAP4 IMAP4REV1", inetd_mode=off, listen_port="pop3", log_facility="mail", log_passwd="never", login_disabled=off, lower_case="", managesieve_capability=""IMPLEMENTATION" "perdition"  "SIEVE" "comparator-i;octet comparator-i;ascii-casemap fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date"  "SASL" "PLAIN"  "NOTIFY" "mailto"  "VERSION" "1.19-rc4"", map_library="/usr/lib/libperditiondb_posix_regex.so.0", map_library_opt="/etc/perdition/popmap-test.re", no_bind_banner=off, no_daemon=off, no
Feb 23 10:46:25 nioo perdition.pop3[2982]: vanessa_socket_server_bind: getaddrinfo: Servname not supported for ai_socktype
Feb 23 10:46:25 nioo perdition.pop3[2982]: vanessa_socket_server_bindv: vanessa_socket_server_bind_sockaddr_in 
Feb 23 10:46:25 nioo perdition.pop3[2982]: main: vanessa_socket_server_bindv 
Feb 23 10:46:25 nioo perdition.pop3[2982]: Fatal error listening for connections.Exiting. 

If I try binding to the hostname, perdition starts but only listen in IPv6:

Feb 23 10:48:50 nioo perdition.pop3[3095]: Starting perdition version=1.19-rc4 protocol=POP3 
Feb 23 10:48:50 nioo perdition.pop3[3095]: add_domain="", authenticate_in=off, authenticate_timeout=1800, bind_address="nioo.mail.be.easynet.net", client_server_specification=off, config_file="/etc/perdition/perdition.conf", connection_limit=0, connection_logging=off, connect_relog=300, debug=on, domain_delimiter="@", explicit_domain="", group="mail", imap_capability="IMAP4 IMAP4REV1", inetd_mode=off, listen_port="pop3", log_facility="mail", log_passwd="never", login_disabled=off, lower_case="", managesieve_capability=""IMPLEMENTATION" "perdition"  "SIEVE" "comparator-i;octet comparator-i;ascii-casemap fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date"  "SASL" "PLAIN"  "NOTIFY" "mailto"  "VERSION" "1.19-rc4"", map_library="/usr/lib/libperditiondb_posix_regex.so.0", map_library_opt="/etc/perdition/popmap-test.re", no_bind_banner=off, no_daemon=off, no_lookup=off, tcp_keepalive=off, 
Feb 23 10:48:50 nioo perdition.pop3[3097]: vanessa_socket_daemon_setid: uid=8 euid=8 gid=8 egid=8 

nioo:/etc/perdition# netstat -lpn |grep \:110
tcp6       0      0 2001:6f8:200:1::1:7:110 :::*                    LISTEN      3097/perdition.pop3

I hope this can help debugging the issue.

Thanks for your help anyway. :)

Best regards,

Chris

-- 
Christopher Bodenstein   -   [email protected]
           CB8461-RIPE   -   Systems Administrator
    Easynet Belgium SA   -   http://www.be.easynet.net/
     "Great acts are made up of small deeds." Lao Tsu

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