9 More Discussions You Might Find Interesting
1. Cybersecurity
Hello,
on a PC with Debian 8 I try to use a Bash script with Netfilter rules so that only traffic goes in and out that is wanted. For that I set all 3 default policies to "drop". The machine uses DHCP to get its IP, gateway and DNS. And I never checked so I was quite surprised that my... (1 Reply)
Discussion started by: SInt
1 Replies
2. Cybersecurity
Hi all,
I would like to get some ideas and opinions on matter of libvirt netfilter application in KVM environment. I am looking for some easy way to control it with an API and possible experience with that and its performance in real life application.
Thanks for all ideas (0 Replies)
Discussion started by: smoofy
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3. Linux
Hello,
Everyone knows that with PF_PACKET sockets one can "sniff" a determinated frame from the network device, but just that, see the frame without altering its action on the receiving host. What i want is to "intercept" the incoming frame and pass it through some rules, and if it doesn't pass... (9 Replies)
Discussion started by: Zykl0n-B
9 Replies
4. UNIX for Advanced & Expert Users
iam trying to built a firewall.so i have used netfilter for it.
in function main_hook sock_buff is returning null and in my log file continuously "sock buff null" is printed plse help to solve this problem..
(using print_string iam printing strings on current terminal (terminal we ping))
... (1 Reply)
Discussion started by: pavan6754
1 Replies
5. Linux
HI,
Is the Netfilter and IPtables same?
Thanks & Regards
Arun (1 Reply)
Discussion started by: Arun.Kakarla
1 Replies
6. Cybersecurity
Hi everyone, I would like to allow multi users to access P2P networks, so I wonder if there's a way to tracking these kind of protocols with netfilter, and also compatibility with nat, like the module conntrack_ftp seems to do with the FTP protocol.
Thanks guys. (0 Replies)
Discussion started by: nekkro-kvlt
0 Replies
7. IP Networking
hi,
i'm using tcpreplay to send a traffic trace to my wireless interface (the trace is been captured by the same interface). It seems as netfilter can't trace connections. Is it possible? (0 Replies)
Discussion started by: littleboyblu
0 Replies
8. Programming
Hello friends i'm trying to extend iptables to include a target by which we can change the packet type field of a packet.
For this i created a kernel module and a userspace extension.
Now i face the problem that when i try to invoke iptable with the target i created i get an error message saying... (1 Reply)
Discussion started by: Rakesh Ranjan
1 Replies
9. Programming
Friends I'm facing a big problem trying to extend the netfilter. Somone please help me with your quick reply (any hint) as I've to meet a deadline.
My problem is that I've written a new netfilter target module and its corresponding userspace program for iptables to change the packet type of a... (0 Replies)
Discussion started by: Rakesh Ranjan
0 Replies
ULOGD(8) System Manager's Manual ULOGD(8)
NAME
ulogd - netfilter/iptables ULOG daemon
SYNOPSIS
ulogd [options]
DESCRIPTION
ulogd connects to the netlink device of the Linux kernel and reads messages from the netfilter that get queued with the iptables ULOG tar-
get. For this to work you have to compile the ULOG target into your kernel or load the respective module.
The received messages can be logged into files or into a mySQL or PostgreSQL database.
OPTIONS
-d, --daemon
fork ulogd into background (start as daemon)
-c <filename>, --configfile <filename>
use <filename> as configuration file instead of /etc/ulogd.conf
-h, --help
show usage information
-V, --version
show version information and copyright
FILES
/etc/ulogd.conf
/var/log/ulog/ulogd.log
SEE ALSO
There is more documentation about the daemon and the database plugins (including examples) in the directories
/usr/share/doc/ulogd
/usr/share/doc/ulogd-mysql and
/usr/share/doc/ulogd-pgsql
AUTHOR
This manual page was written by Joerg Wendland <joergland@debian.org>, for the Debian GNU/Linux system (but may be used by others).
Linux Netfilter November 05, 2002 ULOGD(8)