11-26-2002
the etc/hosts files defines ip address and associates hostnames with those addresses, essentially the hosts file is like a small name server, or more correctly a name database. the first thing your computer looks at when you try to connect to a website or anything on the net with a name, the computer looks at the /etc/hosts file first. so this is not the file where you set up your routing. without that default gateway you cannot connect to the internet. now, to set that up first you must find out what your default gateway is, you have to contact your isp. if you have broadband like dsl or cable, and you are using a router, your default gateway probably is 192.168.1.1 or 192.168.0.1. to set this up you will need to visit the man pages for ifconfig, and route.
man ifconfig
man route
now to set your default gateway, you do that with route. the man page for route does a good job of telling you how to do that. make sure you include the GW parameter when you figure our how to use route, this parameter tells your system that the ip address you supply will be the current default gateway. after that, you should be up and running!
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LEARN ABOUT CENTOS
ocf_heartbeat_route
OCF_HEARTBEAT_ROUTE(7) OCF resource agents OCF_HEARTBEAT_ROUTE(7)
NAME
ocf_heartbeat_Route - Manages network routes
SYNOPSIS
Route [start | stop | monitor | meta-data | validate-all]
DESCRIPTION
Enables and disables network routes.
Supports host and net routes, routes via a gateway address, and routes using specific source addresses.
This resource agent is useful if a node's routing table needs to be manipulated based on node role assignment.
Consider the following example use case:
- One cluster node serves as an IPsec tunnel endpoint.
- All other nodes use the IPsec tunnel to reach hosts in a specific remote network.
Then, here is how you would implement this scheme making use of the Route resource agent:
- Configure an ipsec LSB resource.
- Configure a cloned Route OCF resource.
- Create an order constraint to ensure that ipsec is started before Route.
- Create a colocation constraint between the ipsec and Route resources, to make sure no instance of your cloned Route resource is started
on the tunnel endpoint itself.
SUPPORTED PARAMETERS
destination
The destination network (or host) to be configured for the route. Specify the netmask suffix in CIDR notation (e.g. "/24"). If no
suffix is given, a host route will be created. Specify "0.0.0.0/0" or "default" if you want this resource to set the system default
route.
(unique, required, string, no default)
device
The outgoing network device to use for this route.
(unique, optional, string, no default)
gateway
The gateway IP address to use for this route.
(unique, optional, string, no default)
source
The source IP address to be configured for the route.
(unique, optional, string, no default)
table
The routing table to be configured for the route.
(optional, string, no default)
SUPPORTED ACTIONS
This resource agent supports the following actions (operations):
start
Starts the resource. Suggested minimum timeout: 20.
stop
Stops the resource. Suggested minimum timeout: 20.
monitor
Performs a detailed status check. Suggested minimum timeout: 20. Suggested interval: 10.
reload
Suggested minimum timeout: 20.
meta-data
Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5.
validate-all
Performs a validation of the resource configuration. Suggested minimum timeout: 20.
EXAMPLE
The following is an example configuration for a Route resource using the crm(8) shell:
primitive p_Route ocf:heartbeat:Route
params
destination=string
op monitor timeout="20" interval="10" depth="0"
SEE ALSO
http://www.linux-ha.org/wiki/Route_(resource_agent)
AUTHOR
Linux-HA contributors (see the resource agent source for information about individual authors)
resource-agents UNKNOWN 06/09/2014 OCF_HEARTBEAT_ROUTE(7)