Re: Snort Inline mode with iptables problems on Ubuntu 12.04

[Shivaramakrishnan Vaidyanathan <shivaramakrishnan740 () gmail com>]

What changes did you do to make snort see the other daq modules that were
missing in my case?




On Wed, Mar 19, 2014 at 6:25 PM, James Lay <jlay () slave-tothe-box net> wrote:

> On 2014-03-19 14:35, Shivaramakrishnan Vaidyanathan wrote:
> > I have it installed and recompiled.The problem is not snort is not
> > able to see the nfq and ipq daq modules.
> > It is able to see pcap,ipfw,dump,afpacket
> >
> >  Build AFPacket DAQ module :Yes
> > Build IPFW DAQ module :Yes
> > Build IPQ DAQ module :Yes
> >  Build NFQ DAQ module :Yes
> > Build PCAP DAQ module : Yes
> >
> >  --
> > Shiva
> >
> > On Wed, Mar 19, 2014 at 4:29 PM, James Lay <jlay () slave-tothe-box net
> > [7]> wrote:
> >
> > > On 2014-03-19 14:15, Shivaramakrishnan Vaidyanathan wrote:
> > > > But when i try to run with daq as nfq,I get daq module nfq not
> > > found.
> > > > Though I see them built,when i use ./configure in daq.
> > > >
> > > >  On Wed, Mar 19, 2014 at 4:08 PM, James Lay
> > > <jlay () slave-tothe-box net [1]
> > >
> > > > [6]> wrote:
> > > >
> > > > > On 2014-03-19 13:17, Shiva wrote:
> > > > > > Hi,
> > > > > > I have installed the latest version of snort in inline mode
> > > and I
> > > > > > have been having problems in accessing the machine once I
> > > change
> > > > > the
> > > > > > iptables entries.I am able to start the snort with no
> > > issues.But
> > > > > as
> > > > > > soon as I change the iptables, I am no longer able to access
> > > > > it.Here
> > > > > > is the iptables commands that I use.
> > > > > >
> > > > > > iptables -A INPUT -i lo -s 127.0.0.1 -d 127.0.0.1 -j ACCEPT
> > > > > > iptables -A OUTPUT -o lo -s 127.0.0.1 -d 127.0.0.1 -j ACCEPT
> > > > > > iptables -A INPUT -j QUEUE
> > > > > > iptables -A FORWARD -j QUEUE
> > > > > > iptables -A OUTPUT -j QUEUE
> > > > > >
> > > > > > snort -Q --daq afpacket --daq-mode inline -i eth0:eth1 - u
> > > snort
> > >
> > > > > -g
> > > > > > snort -c /etc/snort/snort.conf
> > > > > >
> > > > > > (I believe I dont have to install extra modules for ip_queue
> > > on
> > > > > > ubuntu 12.04).Please let me know what I am doing wrong
> > > here?Any
> > > > > > suggestions is greatly appreciated.
> > > > > >
> > > > > > --
> > > > > > Shiva
>
>  From an Ubuntu 12.0.4 box I have:
>
> snort --daq-list
> Available DAQ modules:
> pcap(v3): readback live multi unpriv
> nfq(v7): live inline multi
> ipfw(v3): live inline multi unpriv
> dump(v2): readback live inline multi unpriv
> afpacket(v5): live inline multi unpriv
>
> ldd `which snort`
>          linux-gate.so.1 =>  (0xb7776000)
>          libcrypto.so.1.0.0 => /lib/i386-linux-gnu/libcrypto.so.1.0.0
> (0xb75b8000)
>          libpcre.so.3 => /lib/i386-linux-gnu/libpcre.so.3 (0xb757c000)
>          libm.so.6 => /lib/i386-linux-gnu/libm.so.6 (0xb754f000)
>          libdl.so.2 => /lib/i386-linux-gnu/libdl.so.2 (0xb754a000)
>          libnetfilter_queue.so.1 => /usr/lib/libnetfilter_queue.so.1
> (0xb7546000)
>          libsfbpf.so.0 => /usr/local/lib/libsfbpf.so.0 (0xb7520000)
>          libpcap.so.0.8 => /usr/lib/i386-linux-gnu/libpcap.so.0.8
> (0xb74e9000)
>          libdnet.1 => /usr/lib/libdnet.1 (0xb74d9000)
>          libz.so.1 => /lib/i386-linux-gnu/libz.so.1 (0xb74c3000)
>          libpthread.so.0 => /lib/i386-linux-gnu/libpthread.so.0
> (0xb74a8000)
>          libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xb72fe000)
>          /lib/ld-linux.so.2 (0xb7777000)
>          libnfnetlink.so.0 => /usr/lib/libnfnetlink.so.0 (0xb72f6000)
>
> And some package info:
>
> ii  libnetfilter-queue-dev               0.0.17-1
>                      Development files for libnetfilter-queue1
> ii  libnetfilter-queue1                  0.0.17-1
>                      Netfilter netlink-queue library
> ii  libnfnetlink-dev                     1.0.0-1
>                      Development files for libnfnetlink0
>
> Hope this helps.
>
> James
>
>
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