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Thread: WinXP won't clear the DNS cache (can it be cleared manually)?

  1. #41
    Johnw
    Guest

    Re: WinXP won't clear the DNS cache (can it be cleared manually)?

    John Corliss was thinking very hard :

    > Thanks for that info.


    That's Ok.

    > I've observed this myself. I think Spybot S&D's "Immunize" feature increases
    > the size of your hosts file. I no longer run that program though.


    Yep, that's how I remember it, stopped using 7 or 8 years ago.



  2. #42
    Joel
    Guest

    Re: What does the DNS Client service actually do?

    Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> wrote:

    > There two lessons here:


    Well, the first lesson should be quoting some part of the original message
    so other knows what you are talking about.

    > Folk wisdom is often based upon people using magic incantations and not really understanding what their computers do.
    >
    >
    > Abusing the DNS to solve an HTTP problem is wrongheaded.


  3. #43
    DevilsPGD
    Guest

    Re: What does the DNS Client service actually do?

    In message <24v3r51l7cng7aih00joajrrtesa4i96sm@4ax.com> Joel
    <Joel@NoSpam.com> was claimed to have wrote:

    >Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> wrote:
    >
    >> There two lessons here:

    >
    > Well, the first lesson should be quoting some part of the original message
    >so other knows what you are talking about.


    Not to call you out on missing something obvious, but the previous
    poster *did* quote, but it was done using indents rather than quote
    marks.

  4. #44
    DanS
    Guest

    Re: What does the DNS Client service actually do?

    DevilsPGD <Still-Just-A-Rat-In-A-Cage@crazyhat.net> wrote in
    news:6m94r519vcqc5ngldtv7mh8cjms771p8gr@4ax.com:

    > In message <24v3r51l7cng7aih00joajrrtesa4i96sm@4ax.com>
    > Joel <Joel@NoSpam.com> was claimed to have wrote:
    >
    >>Jonathan de Boyne Pollard
    >><J.deBoynePollard-newsgroups@NTLWorld.COM> wrote:
    >>
    >>> There two lessons here:

    >>
    >> Well, the first lesson should be quoting some part of
    >> the original message
    >>so other knows what you are talking about.

    >
    > Not to call you out on missing something obvious, but the
    > previous poster *did* quote, but it was done using indents
    > rather than quote marks.


    It's kind of hard to see *anything* in the posters HTML.

    Here's what I actually see on my screen......I didn't even
    attempt to read it...............

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01Transitional//EN">
    <html>
    <head>
    <meta content="text/html; charset=ISO-8859-1"
    http-equiv="Content-Type">
    </head>
    <body bgcolor="#ffffff" text="#000000">
    <blockquote cite="mid:hopm7v$s9d$1@tioat.net" type="cite">
    <p>The strange thing is that almost everyone on the net
    recommends we turn OFF the DNS Client (aka DNS Caching)
    services, [...]</p>
    </blockquote>
    <p>It's usually folk wisdom, that almost certainly has been
    passed on from each to the other.&nbsp; It's often not based
    upon knowledge of what the DNS Client does or is.&nbsp; (One
    person in your list there thinks that the DNS Client is a DNS
    server, for example.)&nbsp; It's instead based upon an <i>
    Animal-Farm</i>-like simplistic notion of&nbsp; "service
    enabled bad, service disabled good", which is of course wrong.
    &nbsp; A second person in your list even blames the DNS Client
    service for the facts that xyr several ISPs are not presenting
    the same views of the DNS namespace as each other, and that
    sometimes DNS lookups produce (gasp!) answers that
    say that a particular domain name doesn't exist.</p>
    <p>Interestingly, one of the items in your list is someone
    posting this piece of folk wisdom in a discussion forum and
    having it debunked by other people.&nbsp; As you note, what
    you'll find written by Microsoft doesn't support this folk
    wisdom, either.&nbsp; As M. Fekay says, <em>Microsoft
    is right about its own software, here</em>.&nbsp; There are
    some instances where Microsoft gets things wrong about its own
    products, usually resulting from the fact that it's a big
    company and in such companies the people who write the user
    documentation are sometimes not the people who develop the
    software, or from the fact that even people within Microsoft
    aren't immune from believing Internet/WWW-garnered erroneous
    received wisdom from time to time, but this particular
    instance isn't one of them.<br>
    </p>
    <p>The most noteworthy item in your list is the documentation
    for Simple DNS Plus.&nbsp; That's the only one that you
    present that actually gives a <em>sensible</em> reason for not
    having the DNS Client service enabled: namely that Simple DNS
    Plus is a fully-fledged <a
    href="http://homepage.ntlworld.com./jonathan.deboynepollard/FG
    A/dns-server-roles.html#ResolvingProxy">caching
    resolving proxy DNS server</a>, and if one has one of <em>
    those</em> locally, having the extra caching in the DNS Client
    service on the same machine makes no sense.</p>
    <p>Further sensible advice is the advice that you're ignoring,
    but that you'll find equally widely disseminated: Don't use
    DNS for this task at all.&nbsp; It's the wrong tool.&nbsp; The
    DNS is not a tool for meeting WWW browsing customization
    needs. <a
    href="http://homepage.ntlworld.com./jonathan.deboynepollard/FG
    A/verisign-internet-coup.html">That's
    a lesson that the world learned in 2003</a>.&nbsp; Use an
    advertisment-blocking HTTP proxy server;
    use <a
    href="http://homepage.ntlworld.com./jonathan.deboynepollard/FG
    A/web-browser-auto-proxy-configuration.html">a
    PAC
    script</a>, or use one of the many WWW browser plug-ins that
    do
    what you want to do.</p>
    <p>There two lessons here:</p>
    <ul>
    <li>
    <p>Folk wisdom is often based upon people using magic
    incantations
    and not really understanding what their computers do.</p>
    </li>
    <li>
    <p>Abusing the DNS to solve an HTTP problem is
    wrongheaded.</p>
    </li>
    </ul>
    </body>
    Attachment decoded: untitled-1.htm
    </html>


  5. #45
    Jonathan de Boyne Pollard
    Guest

    Re: What does the DNS Client service actually do?



    Not to call you out on missing something obvious, but the previous poster did quote, but it was done using indents rather than quote marks.




    Actually, it wasn't done with indents.&nbsp; It was done with &lt;blockquote&gt;, which is, as the name states, a quote.&nbsp; The usage here was directly in line with what the element is actually for.&nbsp; Using it to indent is in fact a mis-use, deprecated in the HTML 4.01 specification.



  6. #46
    Joel
    Guest

    Re: What does the DNS Client service actually do?

    DevilsPGD <Still-Just-A-Rat-In-A-Cage@crazyhat.net> wrote:

    > In message <24v3r51l7cng7aih00joajrrtesa4i96sm@4ax.com> Joel
    > <Joel@NoSpam.com> was claimed to have wrote:
    >
    > >Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> wrote:
    > >
    > >> There two lessons here:

    > >
    > > Well, the first lesson should be quoting some part of the original message
    > >so other knows what you are talking about.

    >
    > Not to call you out on missing something obvious, but the previous
    > poster *did* quote, but it was done using indents rather than quote
    > marks.


    S/He did? I didn't see any quoting character so I skipped the rest.

  7. #47
    Mike Easter
    Guest

    Re: What does the DNS Client service actually do?

    posted to alt.internet.wireless only, where I read it; disrespecting
    and disregarding the original crossposted group and also the f/up to a
    another group I don't read

    Jonathan de Boyne Pollard wrote:
    Content-Type: text/html;

    > Actually, it wasn't done with indents. It was done with |<blockquote>|,


    You shouldn't be posting anything other than plaintext into general
    usenet discussion groups; (and) your plaintext should be using the
    accepted > quote marks with that plaintext (and) you should only post
    html into groups where it is acceptable, which isn't very many.

    And -- you should get a shorter handle (while you are at it, reforming).

    --
    Mike Easter
    I don't post into
    groups I don't read

  8. #48
    Ace Fekay [MVP-DS, MCT]
    Guest

    Re: What does the DNS Client service actually do?

    "Joel" <Joel@NoSpam.com> wrote in message news:be05r5da2fie2421e0bkhsojdjga9k16c0@4ax.com...
    > DevilsPGD <Still-Just-A-Rat-In-A-Cage@crazyhat.net> wrote:
    >
    >> In message <24v3r51l7cng7aih00joajrrtesa4i96sm@4ax.com> Joel
    >> <Joel@NoSpam.com> was claimed to have wrote:
    >>
    >> >Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> wrote:
    >> >
    >> >> There two lessons here:
    >> >
    >> > Well, the first lesson should be quoting some part of the original message
    >> >so other knows what you are talking about.

    >>
    >> Not to call you out on missing something obvious, but the previous
    >> poster *did* quote, but it was done using indents rather than quote
    >> marks.

    >
    > S/He did? I didn't see any quoting character so I skipped the rest.



    In the style M. deBoynePollard uses, there are no quoting characters.

    And I don't know why your newsreader shows his or assuming anyone else that posts HTML in the fashion it did. CHeck Forte Agent's settings.

    Anyway, let's get back on topic...

    --
    Ace

    This posting is provided "AS-IS" with no warranties or guarantees and confers no rights.

    Please reply back to the newsgroup or forum for collaboration benefit among responding engineers, and to help others benefit from your resolution.

    Ace Fekay, MVP, MCT, MCITP EA, MCTS Windows 2008 & Exchange 2007, MCSE & MCSA 2003/2000, MCSA Messaging 2003
    Microsoft Certified Trainer
    Microsoft MVP - Directory Services

    If you feel this is an urgent issue and require immediate assistance, please contact Microsoft PSS directly. Please check http://support.microsoft.com for regional support phone numbers.

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