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OT (Slightly) ZoneAlarm Problem

Discussion in 'Electronic Design' started by Mark Fergerson, Jan 3, 2006.

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  1. Tried their online help?

    What browser?

    What about cookie, images, popup etc. settings?

    Mark L. Fergerson
  2. Jon

    Jon Guest

    I have a problem with Zonealarm. When I try to access a website, I get
    the message "Page Can not be Displayed". Disabling ZoneAlarm fixes the
    problem. However, this defeats the purpose of having a firewall in the
    first place!
    I've tried doing a clean re-install and disabling the Windows XP
    firewall. Here's my configuration:
    ~ Windows XP Professional Service Pack 2
    ~ ZoneAlarm Pro
    ~ Version
    ~ Tru Vector Version
    ~ Driver Version
    Any suggestions?
  3. My current(and working) version is 5.5 something. I've heard that some versions didnt work well.
    What does the zone tab show?
    Go to a command prompt and type ipconfig /all , what does that say?

  4. Guest

    Have you tried tinkering with the firewall settings? I set mine on
    "High" for both cases (off the top of my head I think it's Internet and
    Intranet, I'm at work right now and don't have it in front of me).

    Then again, I use a dialup connection. When having my laptop talk to
    my desktop machine by wireless connection, they won't talk unless the
    firewall settings are either at "Medium" or "Low".

    Then again, what do I know. I didn't write the software, and maybe
    even *I'm* using it wrong for the wireless connection.

    The Madman
  5. qrk

    qrk Guest

    If your using XP, isn't the built-in XP firewall enough?
    Software firewalls like Zone Alarm are generally troublesome. You
    don't say what sort of connection you have, but if your on a
    high-speed connection, use a hardware firewall. Dlink, Linksys, and
    others make nice little boxes. I see some DSL and cable modems have
    built-in firewalls these days. You can set outgoing blocks on ports
    135-139 and 6660-6669 (TCP and UPD) which prevents some viruses
    calling outside your network and causing more problems for others or
  6. JeffM

    JeffM Guest

    If [you're] using XP, isn't the built-in XP firewall enough?
    No. The main reason for having a software firewall
    is to block EGRESS traffic.
    XP's "firewall" doesn't filter outbound packets.
  7. Robert

    Robert Guest

    When you install it weren't you given a choice about how paranoid to be? If
    you select the most paranoid of the settings you can block everything on
    your computer from getting out to the Internet.

    Under the Zonealarm Control Panel -> Firewall -> Main Tab -> slide the
    Internet Zone Security slider to "Medium". Do the same for "Program
    Control" -> Main -> "Program Control" Slider

  8. "A website" meaning "Every website" or "A particular website (smut, of
    course)" - in the latter case Zonealarm probably works, in the first case
    the settings are wrong.


    I use a separate Hardware firewall - having the all the defences in the one
    leaky basket that is windows is a waste of time and effort. Might as well
    not bother with firewalls in that setup - the intrusion will with 99%
    probability be via HTTP and after that you will not have a firewall anymore.
  9. I'm using the free version, and I'll assume the paid version is
    similar enough for this to work.

    When ZA blocks something it logs what it did and what program/process
    was doing the Bad Thing that triggered it.

    Turn ZA on, and Open ZA's Control Center and click Alerts and Logs.
    In the Main tab, make sure Alert Events Shown is on and under advanced,
    that archiving is on.

    Then try to access one of these "undisplayable" pages (set your
    browser window size so that ZA stays visible).

    If an alert doesn't come up to tell you why ZA blocked the site,
    check the log to see what ZA did when you tried to access the page. You
    may need to look under both programs and firewall on the Alerts and Logs

    It may be something as simple as an active-X or Java control, media
    player, or other plugin trying to fire up that you told ZA wasn't
    allowed to run on your machine via the internet. You may not be aware
    you so instructed ZA to do this; look at your settings under Program
    Control -> Programs.

    Wait; is this _some_ websites, or _all_ websites? At the top of the
    Control Center is a padlock; is it open or closed? If closed, click the
    Main tab in Program Control and check your Automatic Internet Lock settings.

    Mark L. Fergerson
  10. Jon

    Jon Guest

    Thanks to all for your responses. Ironically "" is one of
    the sites that I can't display with ZoneAlarm running. Most
    legititmate websites are unreachable. For example a Google search of
    "Tulips" results in the "Cannot display page" message, unless Zonealarm
    is disabled.

  11. John Doe

    John Doe Guest

    Sounds like a virus.

    Go here for a comprehensive, free virus scan.

    I think it's really very good for free, without the overhead of a
    real-time virus scanner. They advertise their products on the
    results page without pop-ups.

    Good luck.
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