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Hardening your HOST file
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<blockquote data-quote="HeffeD" data-source="post: 12692" data-attributes="member: 61"><p>Yes. I'd actually recommend <em>against </em>filling up your HOSTS file...</p><p></p><p>A large HOSTS file can affect system performance because the HOSTS file is not indexed. The file must be read from the beginning of the file each time it needs to do a lookup. Depending on the system, this can be extremely detrimental to performance. If each new lookup needs to scan several MB's of data, you can see where the problem lies. </p><p></p><p>HOSTS file sites recommend disabling the DNScache service if you are experiencing performance issues. What they don't tell you is that by doing this, you've just killed your local resolver list. This means that <em>each and every</em> URL you visit now needs a DNS lookup instead of just unique URL lookups! :huh: This will of course slow down your browsing. Depending on the speed of your DNS service, this may not be very noticeable, but it <em>is</em> happening... <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite119" alt=":rolleyes:" title="Roll eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /></p></blockquote><p></p>
[QUOTE="HeffeD, post: 12692, member: 61"] Yes. I'd actually recommend [i]against [/i]filling up your HOSTS file... A large HOSTS file can affect system performance because the HOSTS file is not indexed. The file must be read from the beginning of the file each time it needs to do a lookup. Depending on the system, this can be extremely detrimental to performance. If each new lookup needs to scan several MB's of data, you can see where the problem lies. HOSTS file sites recommend disabling the DNScache service if you are experiencing performance issues. What they don't tell you is that by doing this, you've just killed your local resolver list. This means that [i]each and every[/i] URL you visit now needs a DNS lookup instead of just unique URL lookups! :huh: This will of course slow down your browsing. Depending on the speed of your DNS service, this may not be very noticeable, but it [i]is[/i] happening... :rolleyes: [/QUOTE]
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