iptables : How to apply masquerade while pinging from DUT to outside network
My Device is connected to eth1 interface of the host and eth0 is connected to network.
Now when I am pinging google.com from device after executing below commands on host
I am seeing in wireshark at eth0, that during ping request source ip changes from DUT ip to host ip (i.e eth0 ip)
but that does not happen while ping reply , destination IP remains host IP only.
Why does it not show DUT ip as destination IP , Technically my final destination is DUT
Greetings to all.
My new firewall is giving me one hell of a problem.
I'm running iptables and masquerading my intranet
thru NAT. But here is the problem. Whenever I try
to FTP to a server outside of my lan I get a 500
illegal port error.
I've come to the conclusion that NAT is... (2 Replies)
Hello!
I have the following problem with iptables in Debian 6:
My server works as a router and it needs to log server external IP+port for all outgoing connections.
But after command SNAT or MASQUERADE traffic is "lost".
I mean no following rules can catch those traffic.
Everything looks... (0 Replies)
Hi,
Please tell me what is sendmail masquarade and what is the use of it?
Its pretty confusing :eek:..
Is it all about like when mail is sent from sender to receiver, the receiver cannot see the hostname/internal username of sender..
And I found they constitute various classes like class... (0 Replies)
I'm trying to configure sendmail masquerading and it seems like I'm having a problem with m4.
My main problem is that internally generated emails are showing up externally as originating from: internal_user@internal1.mydomain.com.
internal1.mydomain.com doesn't resolve publicly, nor should it.... (1 Reply)
Hi Champs
i am new in Iptables and trying to write rules for my Samba server.I took some help from internet, created one script and run from rc.local :
#Allow loopback
iptables -I INPUT -i lo -j ACCEPT
# Accept packets from Trusted network
iptables -A INPUT -s my-network/subnet -j... (0 Replies)
HI !!
I have this setup where I have Windows machine and a UNIX based DUT .
I try to make a https connection from my Win to the DUT giving its IP.
But,it is not working (It should do).
What do u think the problem is ?? I checked the logs , they flag some writesocket:broken pipe error in... (1 Reply)
edit: SOLVED - see below for solution
Hi there,
I've inherited a gob of Linux hosts and so am learning linux from the bottom of the deep end of the pool (gotta say I'm warming up to Linux though - it's not half bad)
Right now iptables is confusing me and I could use some pointers as to how... (0 Replies)
I am using nullmailer on Ubuntu Linux to relay mails however when I send email or through cron it appear as
root@myhostname.domain.com instead of root@domain.com
How do I configure nullmailer so the email send appear as from root@domain.com? (0 Replies)
Hi everyone,
I have a LAN with :
1 internet box (192.168.1.1)
1 Debian host (192.168.1.224)
3 Windows hosts (192.168.1.32/33/34)
The internet box is set to route all incoming traffic to the Debian host (DMZ).
Then the Debian host is set to accept certain packets and forward others... (0 Replies)
Discussion started by: chebarbudo
0 Replies
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