Re: System Calls that do DNS

2013-06-06 Thread Doug Hardie
On 3 June 2013, at 22:21, Doug Hardie bc...@lafn.org wrote: On 3 June 2013, at 20:39, staticsafe m...@staticsafe.ca wrote: On Mon, Jun 03, 2013 at 07:57:07PM -0700, Doug Hardie wrote: I have an unusual situation. A program is doing a DNS lookup and often the IP address has no reverse

Re: System Calls that do DNS

2013-06-05 Thread Mark Felder
On Mon, 03 Jun 2013 21:57:07 -0500, Doug Hardie bc...@lafn.org wrote: I have an unusual situation. A program is doing a DNS lookup and often the IP address has no reverse DNS entries. As a result the program hangs for several timeouts. The call is not being made directly in its code,

Re: System Calls that do DNS

2013-06-04 Thread Waitman Gobble
On Jun 3, 2013 10:22 PM, Doug Hardie bc...@lafn.org wrote: On 3 June 2013, at 20:39, staticsafe m...@staticsafe.ca wrote: On Mon, Jun 03, 2013 at 07:57:07PM -0700, Doug Hardie wrote: I have an unusual situation. A program is doing a DNS lookup and often the IP address has no reverse DNS

Re: System Calls that do DNS

2013-06-04 Thread Adam Vande More
On Tue, Jun 4, 2013 at 12:21 AM, Doug Hardie bc...@lafn.org wrote: Unfortunately truss does not show anything more than ktrace. Normally most people use truss first, then fall back to ktrace ;) Bind doesn't check the hosts files as far as I can tell. System requests obey nsswitch.conf(5) --

Re: System Calls that do DNS

2013-06-04 Thread Enno Davids
See if whois can tell you who owns the block the IP is in. That may give you some insight into what is asking for the reverse. E. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe,

Re: System Calls that do DNS

2013-06-04 Thread Doug Hardie
On 4 June 2013, at 22:19, Enno Davids e...@metva.com wrote: See if whois can tell you who owns the block the IP is in. That may give you some insight into what is asking for the reverse. Its ATT. Its probably at least a state's worth of DSL addresses. I am physically at one of them for a

System Calls that do DNS

2013-06-03 Thread Doug Hardie
I have an unusual situation. A program is doing a DNS lookup and often the IP address has no reverse DNS entries. As a result the program hangs for several timeouts. The call is not being made directly in its code, but is occurring in a system call. There are no specific calls to DNS, its

Re: System Calls that do DNS

2013-06-03 Thread staticsafe
On Mon, Jun 03, 2013 at 07:57:07PM -0700, Doug Hardie wrote: I have an unusual situation. A program is doing a DNS lookup and often the IP address has no reverse DNS entries. As a result the program hangs for several timeouts. The call is not being made directly in its code, but is

Re: System Calls that do DNS

2013-06-03 Thread Doug Hardie
On 3 June 2013, at 20:39, staticsafe m...@staticsafe.ca wrote: On Mon, Jun 03, 2013 at 07:57:07PM -0700, Doug Hardie wrote: I have an unusual situation. A program is doing a DNS lookup and often the IP address has no reverse DNS entries. As a result the program hangs for several