[Fed-Talk] nslookup/host and traceroute?
[Fed-Talk] nslookup/host and traceroute?
- Subject: [Fed-Talk] nslookup/host and traceroute?
- From: "Campbell, Paul Madison (ARC-TH)[ASRC RESEARCH & TECHNOLOGY SOLUTIONS]" <email@hidden>
- Date: Wed, 19 Nov 2014 17:31:51 +0000
- Thread-topic: nslookup/host and traceroute?
Hey All,
I am tracking down a VPN issue and I believe traceroute may be lying to me. The man pages for nslookup and host both say this:
Mac OS
X NOTICE
The nslookup command does not use the host name and address resolution
or the DNS query routing mechanisms used by other processes running on
Mac OS X. The results of name or address queries printed by
nslookup
may differ from those found by other processes that use the Mac OS X
native name and address resolution mechanisms. The results of DNS
queries may also differ from queries that use the Mac OS X DNS routing
library.
The man page for traceroute doesn’t say that, but it is from the same generation of tools and it wouldn’t be the first time a man page omitted something. Anyone know if traceroute is susceptible to the
same alternate DNS resolving and then tracing?
The bonus question is: if that is the case, how can you run a traceroute using the actual system resolver that’s used by Safari?
Paul
--
Paul Campbell | Senior Macintosh System Administrator
ASRC Federal Research and Technology Solutions
NASA Ames Research Center
Moffett Field, CA 94035
email@hidden
W: 650.604.4014 | F: 650.604.3323
ASRC Federal | Customer-Focused. Operationally Excellent.
|
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