Redhat NTPD Clock

[John Wirt]

Bob McClure Jr wrote:

>On Fri, May 26, 2006 at 08:27:16AM -0400, John Wirt wrote:
>  
>
>>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.
>>    
>>
>
>Not sure what you mean by that.  Post the results of "netstat -rn".
>You can do that as your mere mortal self.
>
>  
>
Here are the results of netstat -rn:

Destination                Gateway       Genmask             Flags   MSS 
WIndow   irtt  iface
192.168.10.0   0.0.0.0                    255.255.255.0    U          0 
0 0                  0    eth0
169.254.0.0     0.0.0.0                    255.255.0.0         
U          0 0 0                  0    eth0
0.0.0.0             192.168.10.100      0.0.0.0                 UG       
0 0 0                  0    eth0

I tried sending this information by email to the computer that I am 
sending this from. The email apparently left my Linux machine  but never 
arrived at the other one. I am currently using the KDE desktop on the 
Linux machine.  Evolution email does not work.

192.168.10.0 is the IP address of my local LAN. I have a cable modem 
connected to a Linksys router, which has four LAN ports.

If I ping 169..254.0.0, the reply times out.

John Wirt


John Wirt


>>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 at vitalstream.com -
>>>>>>- VitalStream, Inc.                       http://www.vitalstream.com -
>>>>>>-                                                                    -
>>>>>>-        Change is inevitable, except from a vending machine.        -
>>>>>>----------------------------------------------------------------------
>>>>>>            
>>>>>>
>>>>Cheers,
>>>>
>>>>
>>>>        
>>>>
>
>Cheers,
>  
>