Need Urgent Help

[satveer gaur]

Hi Guys,

I have a CentOS server 5.5 running apache (httpd) mysql database server.

Its has two LAN cards having different static IP Address.

This server makes down my gateway when running with gateway
address.But all is working fine without the gateway address.

Please suggest how can I resolve the Issue.

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Thanks and Regards
Satveer Gaur

[Richard Hamel-Smith]

That's just about the most confusing message I've ever seen.

The server "makes down my gateway"?

Please post the output of the commands

# ifconfig

# route -n

# cat /etc/resolv.conf

To explain, to connect to a network, a machine running TCP/IP needs

1. an IP address (for a network interface)

2. a gateway IP address (to connect to another network, like the internet)

3. at least one DNS IP address (to find other machines using domain names instead of by IP Address)

4. a network connection (usually an Ethernet cable or a wireless connection)

The command 'ifconfig' would show us the IP addresses of your network interfaces.
The command 'route -n' would show us how your routing to your gateway is setup.
The command 'cat /etc/resolv.conf' would show us how your DNS servers are setup.

With this information, we might be able to guess what your problem might be. Without it, we cannot assist you.

However, since your machine has 2 network interfaces, and they both have static IP address, it might be that your machine is being used as a router or bridge. IF that is the case, then possibly it is intercepting traffic between two networks and interfering with the correct gateway.

So a diagram or some indication of how your network is set up, would be most useful.

Also, check to see if one interface is coming up before the other, and if that one has a different gateway address, which is being activated in preference to the correct gateway IP address.

Sorry not to be more helpful, but it is a complicated subject and you haven't helped matters by not describing your network properly.

Good luck.


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Richard Hamel-Smith
cel: (868) 763-2049
email: richardh...@gmail.com

[Mahender Singh]

Hi Savteer,
Seems some issue with network configuration. Contact me on below no. to discuss.
Mahender
8860000122

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Thanks With Regards
Mahender Singh
Mobi. No. 8860000122

mail:- mah_e...@yahoo.com, mahen...@gmail.com