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
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)
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)
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)
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)
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)
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,
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)
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)
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)