[Bug 1667] sshd slow connect with 'UseDNS yes'

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=1667

--- Comment #9 from Brian <brian.p.stamper at nasa.gov> 2009-11-04 01:40:20 EST ---
> Try these:
> 
> host -t A flux.arc.nasa.gov. ns1.arc.nasa.gov.
> host -t AAAA flux.arc.nasa.gov. ns1.arc.nasa.gov.
> host -t A flux.arc.nasa.gov. ns2.arc.nasa.gov.
> host -t AAAA flux.arc.nasa.gov. ns2.arc.nasa.gov.

[root at corvus ~]# time host -t A flux.arc.nasa.gov. ns1.arc.nasa.gov.
Using domain server:
Name: ns1.arc.nasa.gov.
Address: 143.232.252.34#53
Aliases: 

flux.arc.nasa.gov has address 143.232.109.139

real    0m5.026s
user    0m0.002s
sys     0m0.003s
[root at corvus ~]# time host -t AAAA flux.arc.nasa.gov. ns1.arc.nasa.gov.
Using domain server:
Name: ns1.arc.nasa.gov.
Address: 143.232.252.34#53
Aliases: 

flux.arc.nasa.gov has no AAAA record

real    0m5.009s
user    0m0.001s
sys     0m0.005s
[root at corvus ~]# time host -t A flux.arc.nasa.gov. ns2.arc.nasa.gov.
Using domain server:
Name: ns2.arc.nasa.gov.
Address: 128.102.0.34#53
Aliases: 

flux.arc.nasa.gov has address 143.232.109.139

real    0m5.008s
user    0m0.002s
sys     0m0.003s
[root at corvus ~]# time host -t AAAA flux.arc.nasa.gov. ns2.arc.nasa.gov.
Using domain server:
Name: ns2.arc.nasa.gov.
Address: 128.102.0.34#53
Aliases: 

flux.arc.nasa.gov has no AAAA record

real    0m5.007s
user    0m0.003s
sys     0m0.001s

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