forward packet from input chain to output

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Looping through input/output

Hi, I've got a directory of about 6000 txt files that look like this: a b c d e f g h k l m n I need to execute a command on them to combine them and, in the end, have one big file with all the needed columns taken form all the 6000 files. I've got the "combining" program, but my problem...

2. UNIX for Dummies Questions & Answers

Filtering output from given input

Hi All, I have a input file as below. Input file may contain more hostlists. sample Input file $ cat hostlist.lst cs18-db1-1-sjl cs22-db1-1-was na88-db1-1-chi na21-db1-2-was I want the output like below format. Pls help. Thanks ! Output format: ...

3. AIX

Packet loss coming with big packet size ping

4. IP Networking

Creating iptables filter rules applicable to both FORWARD and OUTPUT chains

Hi all, I have a script which permits users to access to a large list of IP ranges. Before, access to these ranges was granted by using a shell script to perform the necessary FORWARD chain command to allow traffic coming from the br0 interface and exiting the WAN interface, since br0 was...

5. Ubuntu

iptable forward packet

Hi, I have the doubt which involved following configuration. comp1<--->main<--->comp2 Comp1 sends icmp packet to main. Main takes that packet and changes destination address to comp2 and source address to it own. I can capture the packet send from comp1 to main using netfilter. I can see the...

6. Ubuntu

Iptables forward traffic to forward chain!!!

Hi, I am new to linux stuff. I want to use linux iptables to configure rule so that all my incoming traffic with protocol "tcp" is forwarded to the "FORWARD CHAIN". The traffic i am dealing with has destination addresss of my machine but i want to block it from coming to input chain and somehow...

7. UNIX for Advanced & Expert Users

[SOLVED] No INPUT chain on nat table in iptables

Hello, I'm having problem with an iptables rule. It seems that on one of two systems on the nat table, the INPUT chain doesn't exist for some strange reason. I get the error below: # iptables -t nat -A INPUT -j ACCEPT iptables: No chain/target/match by that name. Here is my kernel on...

8. Shell Programming and Scripting

Dynamic output file generation using a input text file with predefined output format

Hi, I have two files , one file with data file with attributes that need to be sent to another file to generate a predefined format. Example: File.txt AP|{SSHA}VEEg42CNCghUnGhCVg== APVG3|{SSHA}XK|"password" AP3|{SSHA}XK|"This is test" .... etc --------- test.sh has...

9. Shell Programming and Scripting

input -output file

Hi, I am having an Input file .which is having a list of names. comapring with our database , needs to write the out put in file called output.txt , format should be name--> country--->phone number could you please help me.. thanks in advance

10. Shell Programming and Scripting

How to chain some commands together

Hey, I am fiddling with a little script to kill a certain program if it freezes. Basically I want to do something like this: ps -A | grep firefox-bin | read -d ' ' pid kill $pid The problem lies when I pipe the output of grep into read. That part does not seem to work the way I want...

LEARN ABOUT SUSE

iptables-xml

IPTABLES-XML(8) 														   IPTABLES-XML(8)

NAME

       iptables-xml -- Convert iptables-save format to XML

SYNOPSIS

       iptables-xml [-c] [-v]

DESCRIPTION

       iptables-xml  is  used  to convert the output of iptables-save into an easily manipulatable XML format to STDOUT.  Use I/O-redirection pro-
       vided by your shell to write to a file.

       -c, --combine
	      combine consecutive rules with the same matches but different targets. iptables does not currently support more than one target  per
	      match,  so this simulates that by collecting the targets from consecutive iptables rules into one action tag, but only when the rule
	      matches are identical. Terminating actions like RETURN, DROP, ACCEPT and QUEUE are not combined with subsequent targets.

       -v, --verbose
	      Output xml comments containing the iptables line from which the XML is derived

       iptables-xml does a mechanistic conversion to a very expressive xml format; the only semantic considerations are for -g and -j  targets	in
       order to discriminate between <call> <goto> and <nane-of-target> as it helps xml processing scripts if they can tell the difference between
       a target like SNAT and another chain.

       Some sample output is:

       <iptables-rules>
	 <table name="mangle">
	   <chain name="PREROUTING" policy="ACCEPT" packet-count="63436" byte-count="7137573">
	     <rule>
	      <conditions>
	       <match>
		 <p>tcp</p>
	       </match>
	       <tcp>
		 <sport>8443</sport>
	       </tcp>
	      </conditions>
	      <actions>
	       <call>
		 <check_ip/>
	       </call>
	       <ACCEPT/>
	      </actions>
	     </rule>
	   </chain>
	 </table> </iptables-rules>

       Conversion from XML to iptables-save format may be done using the iptables.xslt script and xsltproc, or a custom program using  libxsltproc
       or similar; in this fashion:

       xsltproc iptables.xslt my-iptables.xml | iptables-restore

BUGS

       None known as of iptables-1.3.7 release

AUTHOR

       Sam Liddicott <azez@ufomechanic.net>

SEE ALSO

       iptables-save(8), iptables-restore(8), iptables(8)

								   Jul 16, 2007 						   IPTABLES-XML(8)

Ubuntu