03-02-2007
Proper routing
I have a series of new machines that are internet facing (have IP's that are accessible via the 'net) and it has internal facing interfaces. I need to be able to communicate back to the internal network to a specific server which processes monitoring and e-mail traffic. I've been told that I should use the inside interface to pass back traffic so I checked it out today.
There is a route in the routetable that shows the path back inside and I am able to ping and traceroute the specific server so icmp is up however I'm unable to access ssh (not a big deal), e-mail or the monitoring port.
This info tells me I do have access (even if only icmp) however I don't have the necessary access for monitoring.
Anything I might have missed in my testing? More routing type info.
Carl
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LEARN ABOUT DEBIAN
rds-ping
RDS-PING(1) BSD General Commands Manual RDS-PING(1)
NAME
rds-ping -- test reachability of remote node over RDS
SYNOPSIS
rds-ping [-c count] [-i interval] [-I local_addr] remote_addr
DESCRIPTION
rds-ping is used to test whether a remote node is reachable over RDS. Its interface is designed to operate pretty much the standard ping(8)
utility, even though the way it works is pretty different.
rds-ping opens several RDS sockets and sends packets to port 0 on the indicated host. This is a special port number to which no socket is
bound; instead, the kernel processes incoming packets and responds to them.
OPTIONS
The following options are available for use on the command line:
-c count
Causes rds-ping to exit after sending (and receiving) the specified number of packets.
-I address
By default, rds-ping will pick the local source address for the RDS socket based on routing information for the destination address
(i.e. if packets to the given destination would be routed through interface ib0, then it will use the IP address of ib0 as source
address). Using the -I option, you can override this choice.
-i timeout
By default, rds-ping will wait for one second between sending packets. Use this option to specified a different interval. The timeout
value is given in seconds, and can be a floating point number. Optionally, append msec or usec to specify a timeout in milliseconds
or microseconds, respectively.
Specifying a timeout considerably smaller than the packet round-trip time will produce unexpected results.
AUTHORS
rds-ping was written by Olaf Kirch <olaf.kirch@oracle.com>.
SEE ALSO
rds(7), rds-info(1), rds-stress(1).
BSD
Apr 22, 2008 BSD