Re: DNS config.

[Brian Candler <B.Candler at pobox.com>]

On Wed, Jun 18, 2003 at 04:14:44AM -0700, Paul wrote:
> 
>    hello brian,
>    
>    
>    
>    help ping 64.110.88.3 and 64.110.88.4 to let me know if the dns IP is
>    reacheable. cos I can not even ping the IP address of the linux box
>    from my network but it can ping itself. moreso, it can not ping
>    another machine and other machine too can not ping it, so what could
>    be the problem cos I just resinstalled the linux box now?

I can see .3 but not .4 - see below.

The fact that .4 can ping itself does not mean that the network interface is
working, since no packet leaves the machine. Hence it could be any network
problem - e.g. a bad cable, bad NIC, bad switch port etc. Swap components
until you are able to ping a machine on the same LAN.

If .4 can ping .3 but not the rest of the world then it's probably a missing
default route.

Regards,

Brian.

$ ping -c10 64.110.88.3
PING 64.110.88.3 (64.110.88.3): 56 data bytes
64 bytes from 64.110.88.3: icmp_seq=0 ttl=114 time=737.101 ms
64 bytes from 64.110.88.3: icmp_seq=1 ttl=114 time=718.338 ms
64 bytes from 64.110.88.3: icmp_seq=2 ttl=114 time=720.665 ms
64 bytes from 64.110.88.3: icmp_seq=3 ttl=114 time=785.303 ms
64 bytes from 64.110.88.3: icmp_seq=4 ttl=114 time=933.236 ms
64 bytes from 64.110.88.3: icmp_seq=6 ttl=114 time=896.738 ms
64 bytes from 64.110.88.3: icmp_seq=7 ttl=114 time=1231.032 ms
64 bytes from 64.110.88.3: icmp_seq=8 ttl=114 time=913.234 ms
64 bytes from 64.110.88.3: icmp_seq=9 ttl=114 time=977.735 ms

--- 64.110.88.3 ping statistics ---
10 packets transmitted, 9 packets received, 10% packet loss
round-trip min/avg/max/stddev = 718.338/879.265/1231.032/155.599 ms

$ ping -c10 64.110.88.4
PING 64.110.88.4 (64.110.88.4): 56 data bytes

--- 64.110.88.4 ping statistics ---
10 packets transmitted, 0 packets received, 100% packet loss



>    
>    
>    thanks.
>    Brian Candler <B.Candler at pobox.com> wrote:
>    
>      On Wed, Jun 18, 2003 at 03:40:48AM -0700, Paul wrote:
>      > Pls can anyone help out on how to configured my DNS using BIND 9
>      > redhat linux ver. 7.2
>      How far have you got? What have you done so far, and what problem
>      have you
>      encountered?
>      > And do I need to do any changes in the named.conf and
>      resolve.conf
>      > files to make the dns work on my linux box.?
>      /etc/resolv.conf is the *resolver* configuration: that is, it says
>      which
>      nameserver your Linux box sends the request to when a process
>      running on the
>      box itself wants to do a query (such as when you login using ssh
>      and then
>      type 'ping xyz.com'). If you are running a caching nameserver on
>      your local
>      box then you can point it there:
>      domain foo.com
>      nameserver 127.0.0.1 # Yourself
>      nameserver w.x.y.z # Point to another caching nameserver as backup
>      # (e.g. for when your named is not running)
>      named.conf configures your nameserver as:
>      - caching or non-caching
>      - authoritative (master or slave) for certain domains you configure
>      If you don't change it, then your nameserver will be a caching
>      nameserver
>      and not authoritative for any zones. It's then suitable for clients
>      to point
>      to when they need a local DNS cache.
>      Regards,
>      Brian.
>      
>    Paul Ademola Ajayi
>    Systems/Network Administrator
>    Orbit Wireless Internet Services
>    Plot 32, No. 6 Birabi Street, Off Presidential Hotel
>    G.R.A. Phase I Port Harcourt, Rivers State, Nigeria.
>    Tel.:234-84-573479 GSM:234-803-6700115
>    E-mail:pademmy at yahoo.com
>      _________________________________________________________________
>    
>    Do you Yahoo!?
>    [1]SBC Yahoo! DSL - Now only $29.95 per month!
> 
> References
> 
>    1. http://pa.yahoo.com/*http://rd.yahoo.com/evt=1207/*http://promo.yahoo.com/sbc/

-----
This is the afnog mailing list, managed by Majordomo 1.94.5

To send a message to this list, e-mail afnog at afnog.org
To send a request to majordomo, e-mail majordomo at afnog.org and put
your request in the body of the message (i.e use "help" for help)

This list is maintained by owner-afnog at afnog.org