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Thread: DNS / DHCP Zones

  1. #1
    za_avastfan Guest

    Default DNS / DHCP Zones

    Dear Forum,

    Am I supposed to have a DNS / DHCP entry as a entry under zones?

    In ZA Pro 9.083.000 under -Firewall and - Zones, I only have these two entries:

    Loopback address (Added by Cisco Systems VPN client) 127.0.0.1 IP Address Trusted
    LAN Network 192.168.0.0/255.255.255.0 Network Internet

    I would really appreciate your expert help!

    Thanks in advance,

    ZA_Avastfan

    My setup is as follows:
    - ZA Pro 9.0.083.000
    - Window$ XP Pro SP3
    - Avast Pro 4.8.1351
    - MBAM 1.40 (resident protection active)
    - Firefox 3.5.2

  2. #2
    za_avastfan Guest

    Default Re: DNS / DHCP Zones

    Update:

    I found this thread and followd the instructions ----> http://forum.zonelabs.org/showpost.p...11&postcount=1

    Please tell me if my current setup is correct?

    Loopback address (Added by Cisco Systems VPN client) 127.0.0.1 IP Address Trusted
    LAN Network 192.168.0.0/255.255.255.0 Network Internet
    DNS Server: XXX.X.XX.XXX IP Address Trusted
    DNS Server 2: XXX.X.XX.X IP Address Trusted
    DHCP Server: 192.168.0.1 IP Address Trusted

    Thanks!!!!!!

    ZA_Avastfan

  3. #3
    Join Date
    Nov 2004
    Location
    localhost
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    17,287

    Default Re: DNS / DHCP Zones

    Quote Originally Posted by za_avastfan View Post
    Please tell me if my current setup is correct?
    Yes it is correct.

    If you need to share resources (printer/PCs/storage) in your LAN than you may want to set your "LAN Network 192.168.0.0/255.255.255.0 Network" as Trusted.

    Cheers,
    Fax

    Click here for ZA Support
    Monday-Saturday 6am to 10pm Central time
    Closed Sundays and Holidays

  4. #4
    za_avastfan Guest

    Default Re: DNS / DHCP Zones

    Hi Fax,

    Thanks for the response. I have read the definition of DNS and DHCP.

    I am not good with computers so I don't really understand:

    - why ZA Pro needs them separately listed
    - how the DHCP server differes from the LAN network (almost the same number 192.168.0)

    I don't share anything on the LAN. It's purely a normal internet connection for several computers through the same router.

    Your wise words would be really appreciated :-)

    Thanks,

    ZA_avastfan

  5. #5
    Join Date
    Nov 2004
    Location
    localhost
    Posts
    17,287

    Default Re: DNS / DHCP Zones

    Quote Originally Posted by za_avastfan View Post
    why ZA Pro needs them separately listed
    ZA_avastfan
    Uuuhm, this you should askto ZA . If they are the same number of IP then you can add them only once.

    Quote Originally Posted by za_avastfan View Post
    how the DHCP server differes from the LAN network (almost the same number 192.168.0)
    See here for a definition of DHCP
    http://en.wikipedia.org/wiki/Dynamic...ation_Protocol

    and this for understanding what is a LAN
    http://en.wikipedia.org/wiki/LAN

    Cheers,
    Fax

    Click here for ZA Support
    Monday-Saturday 6am to 10pm Central time
    Closed Sundays and Holidays

  6. #6
    newyorkcityboy Guest

    Default Re: DNS / DHCP Zones

    Why are we supposed to put DNS and DHCP servers into Trusted Zone? I've had (on several different computers) only 127.0.0.1 as Trusted (plus an IP of a local machine I wanted to share directories with), while all the rest was Internet. Everything has worked just fine so far (apart from seeing only a few blocked DNS connections in the log; but apparently this hasn't affected the connection in any way).

  7. #7
    Join Date
    Jun 2006
    Location
    The 3rd Coast - South Central Texas
    Posts
    10,464

    Post Re: DNS / DHCP Zones

    Quote Originally Posted by newyorkcityboy View Post
    Why are we supposed to put DNS and DHCP servers into Trusted Zone? I've had (on several different computers) only 127.0.0.1 as Trusted (plus an IP of a local machine I wanted to share directories with), while all the rest was Internet. Everything has worked just fine so far (apart from seeing only a few blocked DNS connections in the log; but apparently this hasn't affected the connection in any way).
    to the Zone Alarm User Forum..


    Here is the Official Advice posted on CheckPoints Web page..

    ====================
    ISP SERVERS
    -----------
    In some cases your local network or Internet service provider may use
    certain servers or other devices which will require less restrictive access.
    These may include:

    - DNS servers
    - DHCP servers
    - Local or remote proxy servers
    - Gateway computer
    - Local routers or ISDN modems

    In these cases, you may also need to add the IP addresses of specific
    servers to your Trusted Zone
    (set to Medium or lower). If you check your
    Alerts log, you will see entries for these types of servers, including the IP
    addresses you will need to add. You may also need to check the DHCP
    and/or the DNS box under Firewall -> Main -> Internet Zone -> Custom,
    if you do not have them added to your Trusted Zone.
    The default settings were designed for highest security; however some users may need to
    adjust based on their configuration and connection.

    Using the STOP or LOCK features will block network access, and DHCP
    renewal, possibly causing loss of your Internet connection. If you
    experience any problems, do NOT use these.

    STATIC IP
    ---------
    If you have a static IP address for your broadband connection, by adding
    your IP address to your Trusted Zone
    (at Medium or lower), you can use ZoneAlarm at High security. To find out how to do this, open ZoneAlarm,
    then press F1. From the search tab, type address (no quotes). Then
    double-click on 'Adding to the Trusted Zone.'
    GeorgeV
    ZoneAlarm® Extreme Security


    Click here for ZA Support
    Monday-Saturday__ 6am to 10pm Central time
    Closed Sundays and Holidays

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