Re: strange DNS problem
On 2006, Oct 6, at 04:02, Wojciech Puchar wrote: one of my users reporting problem sending e-mail to @mil.be sendmail reports host name lookup failure host reports [EMAIL PROTECTED] ~]$ host -t mx mil.be mil.be mail is handled by 10 hermes01.mil.be. [EMAIL PROTECTED] ~]$ host -t a hermes01.mil.be hermes01.mil.be has address 194.7.21.40 hermes01.mil.be has address 193.191.219.40 Host hermes01.mil.be not found: 2(SERVFAIL) ^ where's a problem? while hostr is able to get IP addresses but then reports servfail? What you are seeing is the IPv6 lookup: # host -t hermes01.mil.be Host hermes01.mil.be not found: 2(SERVFAIL) Make sure you have the Sendmail option turned on to ignore the SERVFAIL messages: # grep /etc/mail/freebsd.mc define(`confBIND_OPTS', `WorkAroundBroken') # grep /etc/mail/sendmail.cf O ResolverOptions=WorkAroundBroken With that, mail should flow fine. Though I have to admit I am having a similar problem except the host is randomly (with a very high probability of it doing so) failing to respond at all rather than at least answering SERVFAIL. With no SERVFAIL it appears Sendmail/resolver consider the NS host to be down and do not fail through to try and lookup the A record. [I'm still trying to verify that.] -philip ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
strange DNS problem
one of my users reporting problem sending e-mail to @mil.be sendmail reports host name lookup failure host reports [EMAIL PROTECTED] ~]$ host -t mx mil.be mil.be mail is handled by 10 hermes01.mil.be. [EMAIL PROTECTED] ~]$ host -t a hermes01.mil.be hermes01.mil.be has address 194.7.21.40 hermes01.mil.be has address 193.191.219.40 Host hermes01.mil.be not found: 2(SERVFAIL) ^ where's a problem? while hostr is able to get IP addresses but then reports servfail? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: strange DNS problem
Wojciech Puchar [EMAIL PROTECTED] wrote: one of my users reporting problem sending e-mail to @mil.be sendmail reports host name lookup failure host reports [EMAIL PROTECTED] ~]$ host -t mx mil.be mil.be mail is handled by 10 hermes01.mil.be. [EMAIL PROTECTED] ~]$ host -t a hermes01.mil.be hermes01.mil.be has address 194.7.21.40 hermes01.mil.be has address 193.191.219.40 Host hermes01.mil.be not found: 2(SERVFAIL) ^ where's a problem? while hostr is able to get IP addresses but then reports servfail? I don't see that error when I try the same lookups. host -t a hermes01.mil.be hermes01.mil.be has address 194.7.21.40 hermes01.mil.be has address 193.191.219.40 I suspect the problem is in your resolver config and/or caches. -- Bill Moran Be calm. Morpheus ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: strange DNS problem
where's a problem? while hostr is able to get IP addresses but then
reports servfail?
I don't see that error when I try the same lookups.
host -t a hermes01.mil.be
hermes01.mil.be has address 194.7.21.40
hermes01.mil.be has address 193.191.219.40
I suspect the problem is in your resolver config and/or caches.
possibly. but where to look? no other site behaves like this.
my named.conf:
acl seconds { 153.19.176.2; 10.254.1.254; 83.16.196.26;};
acl locals {10/8; 127.0.0.1/32;};
options {
directory /etc/namedb;
allow-transfer {seconds;};
pid-file/var/run/named/pid;
dump-file /var/dump/named_dump.db;
statistics-file /var/stats/named.stats;
listen-on { 127.0.0.1; 10.254.1.248; 83.18.148.142; };
listen-on-v6{ any; };
};
#logging {category lame-servers { null; };};
zone . in {type hint; file root.cache;};
zone 0.0.127.in-addr.arpa in { type master; file 127;};
and then master and slaves domains definitions below.
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Re: strange DNS problem
Wojciech Puchar [EMAIL PROTECTED] wrote:
where's a problem? while hostr is able to get IP addresses but then
reports servfail?
I don't see that error when I try the same lookups.
host -t a hermes01.mil.be
hermes01.mil.be has address 194.7.21.40
hermes01.mil.be has address 193.191.219.40
I suspect the problem is in your resolver config and/or caches.
possibly. but where to look? no other site behaves like this.
my named.conf:
acl seconds { 153.19.176.2; 10.254.1.254; 83.16.196.26;};
acl locals {10/8; 127.0.0.1/32;};
options {
directory /etc/namedb;
allow-transfer {seconds;};
pid-file/var/run/named/pid;
dump-file /var/dump/named_dump.db;
statistics-file /var/stats/named.stats;
listen-on { 127.0.0.1; 10.254.1.248; 83.18.148.142; };
listen-on-v6{ any; };
};
#logging {category lame-servers { null; };};
zone . in {type hint; file root.cache;};
zone 0.0.127.in-addr.arpa in { type master; file 127;};
and then master and slaves domains definitions below.
Just a theory: Do you possibly have recursive queries locked down too
far, and does resolution of that name require recursion?
--
Bill Moran
I lay down for a while, and I woke up on the ocean,
floating on my back, and staring at the grey.
It was completely still, 'cept for the pounding of my heart,
was bring me back to life, from three strange days.
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Re: strange DNS problem
zone 0.0.127.in-addr.arpa in { type master; file 127;};
and then master and slaves domains definitions below.
Just a theory: Do you possibly have recursive queries locked down too
where is it set?
far, and does resolution of that name require recursion?
it is possible almost sure.
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