Do you have ParaDNS::XS installed? If not, try installing it. It's
generally likely to be better than plain ParaDNS (and will be used
automatically if it's installed).
On Thu, 17 Jul 2014, David Favor wrote:
I've been running qpsmtpd-async for years on all sorts of servers.
Likely I have something in DNS setup slightly wrong on a new server
I'm setting up + what's wrong escapes me.
The symptom is qpsmtpd-async hanging forever in the HELO sequence.
Both forkserver + prefork work fine + async works so much better,
I'd like to resolve this problem.
Here's an example of the problem...
Listen child making a Qpsmtpd::PollServer for 7.
11869 in config(plugins)
11869 config(plugins) returning (resolve_sender_host
dont_require_anglebrackets rcpt_simple t...@newswire.net ch...@newswire.net
d...@newswire.net supp...@newswire.net account...@newswire.net
sa...@newswire.net debr...@newswire.net maildir /cluster/clients/ivan-budimir
%d/users/%l/Maildir) from cache
DNS failure looking for 127.0.0.1 after 0 secs (looked for 1, got 0)
11869 (connect) running plugin: resolve_sender_host
11869 (connect) resolve_sender_host: DEBUG: ip=127.0.0.1 host=localhost
domain=localhost
11869 Plugin resolve_sender_host, hook connect returned DECLINED,
11869 in config(smtpgreeting)
11869 config(smtpgreeting) returning (Ready!) from cache
Notice this line emitted from ParaDNS...
DNS failure looking for 127.0.0.1 after 0 secs (looked for 1, got 0)
Bind looks good...
biz-net2# netstat -pluten | grep named
tcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN
105 6068 4715/named
tcp 0 0 127.0.0.1:953 0.0.0.0:* LISTEN
105 6073 4715/named
tcp6 0 0 ::1:53 :::* LISTEN
105 6070 4715/named
tcp6 0 0 ::1:953 :::* LISTEN
105 6074 4715/named
udp 0 0 127.0.0.1:53 0.0.0.0:*
105 6067 4715/named
udp6 0 0 ::1:53 :::*
105 6069 4715/named
And host seems to work too...
biz-net2# host localhost
localhost has address 127.0.0.1
localhost has IPv6 address ::1
biz-net2# host 127.0.0.1
1.0.0.127.in-addr.arpa domain name pointer localhost.
If I turn on ParaDNS debugging (export PARADNS_DEBUG=100) I just see the
lookup fail again...
100/2 [17636] dns lookup: Trying to resolve A: 127.0.0.1
100/2 [17636] dns lookup: NS Query: 127.0.0.1 (60806)
DNS failure looking for 127.0.0.1 after 0 secs (looked for 1, got 0)
biz-net2# perl -MParaDNS -e 'print "$ParaDNS::VERSION\n"'
2.0
Anyone have any suggestions?
