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<p class=MsoNormal>This dovetails into building a DNS caching server I asked
earlier this week. The issue is we are seeing latency in our application
and a possible (but only possible, not proven) issue might be host
lookups. I figured that an entry into /etc/hosts would be faster than a
WAN DNS lookup especially since the IP is static. Someone was concerned
with disk reads and that becoming a bottleneck. Someone else pointed out
that /etc/hosts file was cached. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>This started a google search by me to find out if that was
true or not. Totally inconclusive. Some have reported issues with
not being able to get the Linux box to re-read the hosts file after a change
was committed short of a reboot or init restart. Others have said just
make the change and it shows up. I have not found any documentation saying
whether it was cached or not. Any smart guys know the answer or can
provide any documentation on that? It’s kind of funny, you think
you KNOW something until someone says “Prove it”.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Damon@damtek.com<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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<FONT FACE="Times New Roman">LEGAL DISCLAIMER<BR>The information transmitted is intended solely for the individual or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of or taking action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you have received this email in error please contact the sender and delete the material from any computer.<BR> <BR>SunTrust is a federally registered service mark of SunTrust Banks, Inc. Live Solid. Bank Solid. is a service mark of SunTrust Banks, Inc.<BR>[ST:XCL]</FONT>
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