Install vpnclient on centos 5.1 and perforce

INSTALL VPNCLIENT
download vpnclient-linux-x86_64-4.8.02.0030-k9.tar.gz file
tar -zxvf vpnclient-linux-x86_64-4.8.02.0030-k9.tar.gz
cd vpnclient
./vpn_install
/etc/init.d/vpnclient_init start
copy cust.pcf (your vpn profile file to connect to your client) to /etc/opt/cisco-vpnclient/Profiles/.
To connect to your customer type
#vpnclient connect cust
Above cust is the name of the pcf file you copied to /etc/opt/cisco-vpnclient/Profiles/.


INSTALL PERFORCE
download p4v from http://www.perforce.com/perforce/downloads/index.html
tar -zxvf p4v.tgz
cd p4v-2009.1.212209
directly you can access perforce here.

network tools for wireless and wired

Security tube contains group of tools characterized by the name "Tutorials on commonly used Security Tools" for wireless and wired networks. It provided video explanation for each tool. So what are you waiting for.............

Other than this you can find some other tools which are available. have look...

how to install madwifi driver for linux with and with out resend packets option.

Madwifi driver is basically written for Atheros chipsets and it supports most
It is a open source but depends on the proprietary Hardware Abstraction Layer (HAL).

Download and Check

$ wget http://ufpr.dl.sourceforge.net/sourceforge/madwifi/madwifi-0.9.4.tar.bz2
$ tar -zxvf madwifi-0.9.4.tar.bz2
$ cd madwifi-0.9.4/
$ cd scripts/
$ ./madwifi-unload.bash
$ ./find-madwifi-modules.sh $(uname -r)
$ cd ..

Build and comment

$ make

Checking requirements… ok.
Checking kernel configuration… ok.
make -C /lib/modules/2.6.18-92.1.13.el5/build SUBDIRS=/home/rafa/0_Down/1_Source/WireLess/madwifi-0.9.4 modules
make[1]: Entering directory `/usr/src/kernels/2.6.18-92.1.13.el5-i686′
CC [M] /home/rafa/0_Down/1_Source/WireLess/madwifi-0.9.4/ath/if_ath.o
In file included from :1:
/home/rafa/0_Down/1_Source/WireLess/madwifi-0.9.4/ath/../include/compat.h:140: error: redefinition of ’skb_end_pointer’
….
….
….
make[3]: *** [/home/rafa/0_Down/1_Source/WireLess/madwifi-0.9.4/ath/if_ath.o] Error 1
make[2]: *** [/home/rafa/0_Down/1_Source/WireLess/madwifi-0.9.4/ath Error 2
make[1]: *** [_module_/home/rafa/0_Down/1_Source/WireLess/madwifi-0.9.4] Error 2
make[1]: Leaving directory `/usr/src/kernels/2.6.18-92.1.13.el5-i686′
make: *** [modules] Error 2

$ cd include
$ cp compat.h compat.h.old
$ vim compat.h
$ diff -U 3 -dHrN -- compat.h compat.h.old
$cat compat.h.diff


— compat.h 2009-03-19 02:02:49.000000000 -0400
+++ compat.h.old 2009-03-18 19:09:37.000000000 -0400
@@ -134,7 +134,7 @@
#define IRQF_SHARED SA_SHIRQ
#endif
-/* #if LINUX_VERSION_CODE <>mac.raw = skb->data;
}
-#endif */
+#endif
#if LINUX_VERSION_CODE <>$ cd ../
$ make

Checking requirements… ok.
Checking kernel configuration… ok.
make -C /lib/modules/2.6.18-92.1.13.el5/build SUBDIRS=/home/rafa/0_Down/1_Source/WireLess/madwifi-0.9.4 modules
make[1]: Entering directory `/usr/src/kernels/2.6.18-92.1.13.el5-i686′
CC [M] /home/rafa/0_Down/1_Source/WireLess/madwifi-0.9.4/ath/if_ath.o
…
…
…
make[1]: Entering directory `/home/rafa/0_Down/1_Source/WireLess/madwifi-0.9.4/tools’
gcc -o athstats -g -O2 -Wall -I. -I../hal -I.. -I../ath athstats.c
gcc -o 80211stats -g -O2 -Wall -I. -I../hal -I.. 80211stats.c
gcc -o athkey -g -O2 -Wall -I. -I../hal -I.. athkey.c
gcc -o athchans -g -O2 -Wall -I. -I../hal -I.. athchans.c
gcc -o athctrl -g -O2 -Wall -I. -I../hal -I.. athctrl.c
gcc -o athdebug -g -O2 -Wall -I. -I../hal -I.. athdebug.c
gcc -o 80211debug -g -O2 -Wall -I. -I../hal -I.. 80211debug.c
gcc -o wlanconfig -g -O2 -Wall -I. -I../hal -I.. wlanconfig.c
gcc -o ath_info -g -O2 -Wall ath_info.c
make[1]: Leaving directory `/home/rafa/0_Down/1_Source/WireLess/madwifi-0.9.4/tools’

# make install

sh scripts/find-madwifi-modules.sh 2.6.18-92.1.13.el5
for i in ath/ ath_hal/ ath_rate/ net80211/; do \
make -C $i install || exit 1; \
done
…
…
…
install -d /usr/local/man/man8
install -m 0644 man/*.8 /usr/local/man/man8
make[1]: Leaving directory `/home/rafa/0_Down/1_Source/WireLess/madwifi-0.9.4/tools’

Configuration and re-boot

# modprob ath_pci
# iwconfig

lo no wireless extensions.

eth1 no wireless extensions.

eth2 no wireless extensions.

sit0 no wireless extensions.

wifi0 no wireless extensions.

ath0 IEEE 802.11b ESSID:”"

Mode:Managed Channel:0 Access Point: Not-Associated
Bit Rate:0 kb/s Tx-Power:0 dBm Sensitivity=1/1
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/70 Signal level=-256 dBm Noise level=-256 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

# ifconfig ath0 up
# wlanconfig ath0 list scan


show all available bssid's

--------------------------------------------------------------------------------------------------------------

If your doing protocol test and you want to have control how many packets are going from your wifi interface. You need to do simple two steps before compiling.

step 1:-

In madwifi-0.9.4/ath/if_athvar.h file change line '#define ATH_TXMAXTRY 11' to '#define ATH_TXMAXTRY 1'.

step 2:-

In madwifi-0.9.4/ath/if_ath.c file change line 'sc -> sc_mrretry = ath_hal_setupxtxdesc(ath, NULL, 0,0,0,0,0,0);' with 'sc-> sc_mrretry=0'.

In place of '0' you can write FALSE and add macro for it.

Now start compilation.

--------------------------------------------------------------------------------------------

installing pcap2air and other airbase tools for wifi

To work with airbase wifi tools we need to have lorcon.
Lorcon is a bookshop specializing in frame insertion for 802.11 (Wi-Fi standard) and is on suite that supports the Airbase. The suite is created in C + + and is formed by applications, Airware-test, fuzz-e pcap2air,pcap-match, pcap-tac, pcap-wepcrypt, prism-strip simple-replay.

Currently, some programs use functions Airbase Lorcon bookstores that are considered obsolete (Deprecated).We'll see how to modify the code to fit the new libraries.

Download and install Lorcon (SVN):

$ svn co https://802.11ninja.net/svn/lorcon/trunk/

(If svn client is not isntalled on your machine just do #yum install subversion)

$ cd trunk/
$ ./configure
$ make
# make install

Download Airbase 2.40: http://www.802.11mercenary.net/downloads/
Files to modify:

airbase-svn-223/80211fp/jc-CTS-printer/src/boring.cpp airbase-svn-223/80211fp/jc-CTS-printer/src/boring.cpp
airbase-svn-223/80211fp/jc-duration-printer/src/duration_pcap_preprocessor.cpp
airbase-svn-223/libs/lib802finger/src/station-lister.cpp: airbase-svn-223/libs/lib802finger/src/station-lister.cpp:
airbase-svn-223/tools/pcap2air/boring.cpp: airbase-svn-223/tools/pcap2air/boring.cpp:
airbase-svn-223/tools/simple-replay/boring.cpp airbase-svn-223/tools/simple-replay/boring.cpp
airbase-svn-223/tools/fuzz-e/boring.cpp airbase-svn-223/tools/fuzz-e/boring.cpp

To modify:

We just replace these lines of code file containing:

tx80211_setmode

By:

tx80211_setfunctionalmode


Installing Airbase-release-2.40:


$ tar -zxvf airbase-release-2.40.tar.gz
$ cd airbase-svn-223
$ cd libs/libairware/
$ make
# make install
$ cd ../../tools/
$ ./build.sh
# ./install.sh


# ln -s /usr/local/bin/airbase/* /usr/sbin/

If any tools complain about missing shared library liborcon-1.0.0.so then

cp /usr/local/lib/liborcon-1.0.0.so /usr/lib

Now bellow airbase tools will be available


Airware-test
fuzz-e
pcap2air
pcap-match
pcap-tac
pcap-wepcrypt
prism-strip
simple-replay