 | | | Redhat NTPD Clock | Redhat NTPD Clock 2006-05-26 - By John Wirt
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John Wirt wrote:
> Bob McClure Jr wrote:
>
>> On Thu, May 25, 2006 at 09:26:57PM -0400, John Wirt wrote:
>>
>>
>>> Hmm..can you tell me how to set the security level?
>>>
>>> Thank you, Rick.
>>>
>>> John Wirt
>>>
>>
>>
>> We prefer bottom posting here. See
>>
>> http://en.wikipedia.org/wiki/Top-posting
>>
>> Try "firewall-config".
>>
>>
>>
> When I enter "firewall-config" as a command, the response is "command
> not found"
>
> When I enter "iptables -h" as a command. the response is "command not
> found"
>
> What should I do?
>
> John Wirt
PS, also I have no Internet access the desktop. No errors other than the
clock.redhat.com error is reported on boot up.
- - - - - - - - - - - - - - - - - -
>
>>> Rick Stevens wrote:
>>>
>>>
>>>
>>>> On Thu, 2006-05-25 at 00:58 -0400, John Wirt wrote:
>>>>
>>>>
>>>>
>>>>
>>>>> Thanks you several of you, I have RedHat booting to completion
>>>>> just fine except for one problem.
>>>>>
>>>>> Near the end of the boot sequence, RedHat apparently tries to
>>>>> connect to some time standard at 66.187.224.4. The sequence is:
>>>>>
>>>>>
>>>>> ntpd: Opening firewall for input from 66.187.224.4 port 123
>>>>> ntpd: Opening firewall for input from clock.redhat.com port 123
>>>>> iptables v 1.2.8: host/network clock.redhat.com not found [FAILED]
>>>>>
>>>>> use iptables -h for assistance.
>>>>>
>>>>> However, iptables -h doesn't provide any help.
>>>>>
>>>>> What is the problem? How can I fix it?
>>>>>
>>>>>
>>>>>
>>>>
>>>> You must have the firewall open ports for TCP and UDP port 53 (DNS).
>>>> What's probably happening is that the system is trying to resolve
>>>> clock.redhat.com (66.187.224.4 and 66.187.233.4) and can't because the
>>>> firewall is blocking DNS issues. This happens if you used the
>>>> "maximum"
>>>> setting on system-config-securitylevel as that blocks EVERYTHING
>>>> (including DNS). Use the "medium" security setting.
>>>>
>>>> -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
>>>> - Rick Stevens, Senior Systems Engineer rstevens@(protected) -
>>>> - VitalStream, Inc. http://www.vitalstream.com -
>>>> - -
>>>> - Change is inevitable, except from a vending machine. -
>>>> -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
>>>>
>>>
>>
>> Cheers,
>>
>>
>
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