Small doubt from a newbie :)

Hi all,

I want to use the iptables "-m random" option.

I visited - http://www.netfilter.org/documentati...O-2.html#ss2.1 <http://www.netfilter.org/documentation/HOWTO/netfilter-extensions-HOWTO-2.html#ss2.1>

to get p-o-m but login failed. Can anyone guide me on how to install this patch.

In the iptables source dowloaded from net i see the libipt_random.c but when i do a make it doesn't complile to generate a ".so".

Can someone tell me how to

Thanks
Uttee :)

To download a new pom (pom-ng nowadays) go to the Netfilter FTP site (ftp.netfilter.org/pub/patch-o-matic-ng/) and download it there; one of the snapshots should do.

You have to configure your kernel to include "random" support and install it. I just checked but the "random" match is not in 2.4.33.3 or 2.6.18.2 so you'll have to patch your kernel for this to work. Then compile and install iptables.

To patch the kernel:
- untar kernel source
- untar iptables source
- untar pom-ng source
- run:
KERNEL_DIR=/path/to/kernel \
IPTABLES_DIR=/path/to/iptables \
./runme extra

Grts,
Rob

download linux >2.6.18 & iptables 1.3.6,
it is called "statistic match".

I tried this. But whatever patch, i try to apply i get the message "n missing files "(n=1,2,3 etc..) and patch fails. Is it possible to apply only the random patch and skip others. Also why am i getting these missing file messages. I took the iptables source from the location

ftp://ftp.netfilter.org/pub/iptables/iptables-1.3.6.tar.bz

Thanks
Uttee

##########################################################################
Welcome to Patch-o-matic (1.17)!

Kernel: 2.6.17, /usr/src/linux-2.6.17.13
Iptables: 1.3.6, /usr/src/iptables-1.3.6
Each patch is a new feature: many have minimal impact, some do not. Almost every one has bugs, so don't apply what you don't need!
-------------------------------------------------------
02_linux-2.4.24.patch does not match your source trees, skipping... Already applied: 01_iptables-1.2.10.patch 01_linux-2.6.3.patch

Testing 02_linux-2.6.4.patch... not applied
The 02_linux-2.6.4.patch patch:
Author: Various
Status: Mandatory

This patch contains all netfilter changes between stock kernel versions 2.6.4 and 2.6.5.

+ Fix ip_conntrack_helper dependency in ip_conntrack.h (Sergio Monteiro Basto)

(http://lists.netfilter.org/pipermail/netfilter-devel/2002-November/009928.html)
+ Missing null mapping for local->local traffic
with CONFIG_IP_NF_NAT_LOCAL disabled (KOVACS Krisztian)
+ ipt_MASQUERADE.c bugfix to compile it cleanly when debugging is enabled (Harald Welte)
+ Let the user send reset packet for bridged frames in the FORWARD chain with ip forwarding disabled (Bart de Schuymer)
-----------------------------------------------------------------
Do you want to apply this patch [N/y/t/f/a/r/b/w/q/?] y cannot apply (2 missing files)
-----------------------------------------------------------------
Do you want to apply this patch [N/y/t/f/a/r/b/w/q/?]
##################################################################################################

Go for Marco Berizzi's solution.

Grts,
Rob

I tried the following

1) Took 2.6.18.2 kernel source - Compiled it with "statistic match" option on
2) Then compiled iptables 1.3.6 and installed it

But still doesn't work. Can you please tell me a step by step description of what to do (when i said newbie - i really meant it :))

Thanks
Utteerna

Error messages?

Here's steps i followed and error details. Please let me know if i missed something

1)Downloaded linux-2.6.18.2 and put it in /usr/src dir and untarred it 2)Downloaded iptables-1.3.6 and put it in /usr/src dir and untarred it 3)Downloaded patch-o-matic-ng-20061108.tar and put it in /usr/src dir and untarred it

4)cd /usr/src/patch-o-matic-ng-20061108 [/usr/src/patch-o-matic-ng-20061108]# export KERNEL_DIR=/usr/src/linux-2.6.18.2 [/usr/src/patch-o-matic-ng-20061108]# exportIPTABLES_DIR=/usr/src/iptables-1.3.6 [/usr/src/patch-o-matic-ng-20061108]# ./runme extra
Applied the following patches : IPV4OPTSSTRIP, ipv4options,ROUTE ,TARPIT,sip-conntrack-nat ---QUESTION-->>I didn't find any patch called "random" here. Where to get it???

6) cd /usr/src/linux-2.6.18.2
[/usr/src/linux-2.6.18.2]# make clean
[/usr/src/linux-2.6.18.2]#make mrproper
[/usr/src/linux-2.6.18.2]#make xconfig
Under Networking-->Networking options-->Network packet
filtering-->Core netfilter configuration-->Netfilter Xtables support, i selected ALL the options (including "statistic") and set it compile as modules. ---QUESTION-->> Do i have to compile them in to the kernel rather than compiling them as modules??? [/usr/src/linux-2.6.18.2]#make bzImage
[/usr/src/linux-2.6.18.2]#make modules
[/usr/src/linux-2.6.18.2]#make modules_install
[/usr/src/linux-2.6.18.2]#make install

7)Now i boot with my new kernel

8) cd /usr/src/iptables-1.3.6
[/usr/src/iptables-1.3.6]# make clean
[/usr/src/iptables-1.3.6]#make
[/usr/src/iptables-1.3.6]#make install

9) Now when i execute
/sbin/depmod -a
/sbin/modprobe ip_tables
/sbin/modprobe ip_conntrack
/sbin/modprobe ip_conntrack_ftp
/sbin/modprobe ip_conntrack_irc
/sbin/modprobe iptable_nat
/sbin/modprobe ip_nat_ftp
echo "1" > /proc/sys/net/ipv4/ip_forward
echo "1" > /proc/sys/net/ipv4/ip_dynaddr
........some other commands..................
iptables -t mangle -A OUTPUT -o ! eth0 -m random --average 50 -j ACCEPT ........some other commands..................

i get the error
##############################################################################
Try `iptables -h' or 'iptables --help' for more information.
iptables v1.3.6: Couldn't load match `random':/usr/local/lib/iptables/libipt_random.so: cannot open shared object file: No such file or directory
##############################################################################
---QUESTION-->> Do i have to load some other modules???
---QUESTION-->>Is the way i do the compiling and installing correct or am i missing something???

Thanks
Utteerna

You don't need POM.

There is no difference. If you compile as a module you must load it before use. Nothing else.

Nope! You must run 'make KERNEL_DIR=/usr/src/linux-2.6.18.2'

Nope! You must run 'make install KERNEL_DIR=/usr/src/linux-2.6.18.2'

Are you running Debian or a Debian derivative?

Since you are installing patch-o-matic, I assume you are going to compile ipsets... is that why you need patch-o-matic? I just did this recently because I use ipsets with Shorewall.

I am also not sure why you did not install the iptables package that comes with your distribution, unless it is because you need a newer version for ipsets.

I would configure the kernel first, and least through the 'make config' part even if you don't compile it. If you do that and then apply the patches, all you need to do is run 'make oldconfig' if you are running Linux. Then you know that you will need to say "Y" to the new options.

After you have patched the kernel and added the new options as I mentioned above, you can compile the kernel. Also, if you are running Debian or a derivative of Debian, I can explain how to compile a kernel the Debian way.

I have not had to do it "the old way" in a long time.

8)

Working finally :) :) :).
Thank you Marco for your time and patience for helping me out. I really appreciate it :).