[CentOS] Network issues with CentOS 5.2
ankushcentos at gmail.com
Fri Sep 19 15:35:15 UTC 2008
On Fri, Sep 19, 2008 at 8:43 PM, Joey Mendez <jmendez at ucsd.edu> wrote:
> I appreciate your reply to my email. The steps ou have given me are things
> that I have done and are already in place. I still cannot get the eth to
> activate unless I issue it a static IP it for some reason will not activate
> under the DHCP selection. Has anyone ever experienced this.
> If I do assign it an IP it will activate but still has no internet
> connection. I can ping itself but cannot ping any machine outside of it or
> have a machine outside be able to ping it.
For internet to work properly dns servers needs to be entered if you
are using static ipaddress. Open the terminal and edit
/etc/resolv.conf file through any text editor and enter dns servers
domain example.com # Incase you want this domain to be your default domain
nameserver xx.xx.xx.xx # Dns Server ipaddress or hostname
nameserver xx.xx.xx.xx # DNS Server ipadddress or hostname
save the file and restart nscd service
service nscd restart
As you mentioned you are not able to ping the machine outside kindly
check the firewall rules aka iptables.
If you don't want to use iptables or firewall on this machine then run
the below commands
service iptables save
chkconfig iptables off
Now check the network connectivity by pinging other machines.
Note: You need to be root to perform the above steps
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