4.5 Kernel running on RPi

Update your RPi to the latest 4.5 Kernel. Simply copy and paste these on your Raspberry Pi. You might need build essentials etc....

1. sudo apt-get install bc unzip -y
2. wget https://github.com/raspberrypi/linux/archive/rpi-4.5.y.zip
3. unzip rpi-4.5.y.zip
4. cd linux-rpi-4.5.y
5. KERNEL=kernel7
6. make bcm2709_defconfig
7. make -j4 zImage modules dtbs
8. sudo make modules_install
9. sudo cp arch/arm/boot/dts/*.dtb /boot/
10. sudo cp arch/arm/boot/dts/overlays/*.dtb* /boot/overlays/
11. sudo cp arch/arm/boot/dts/overlays/README /boot/overlays/
12. sudo scripts/mkknlimg arch/arm/boot/zImage /boot/$KERNEL.img

Quickly Change CPU Gov (Raspberry Pi/Linux)

root@raspberrypi:~# apt-get install cpufrequtils
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  libcpufreq0
The following NEW packages will be installed:
  cpufrequtils libcpufreq0
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 53.5 kB of archives.
After this operation, 274 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://mirrordirector.raspbian.org/raspbian/ jessie/main libcpufreq0 armhf 008-1 [12.9 kB]
Get:2 http://mirrordirector.raspbian.org/raspbian/ jessie/main cpufrequtils armhf 008-1 [40.6 kB]
Fetched 53.5 kB in 0s (72.0 kB/s)
Preconfiguring packages ...
Selecting previously unselected package libcpufreq0.
(Reading database ... 33671 files and directories currently installed.)
Preparing to unpack .../libcpufreq0_008-1_armhf.deb ...
Unpacking libcpufreq0 (008-1) ...
Selecting previously unselected package cpufrequtils.
Preparing to unpack .../cpufrequtils_008-1_armhf.deb ...
Unpacking cpufrequtils (008-1) ...
Processing triggers for man-db (2.7.0.2-5) ...
Processing triggers for systemd (215-17+deb8u3) ...
Setting up libcpufreq0 (008-1) ...
Setting up cpufrequtils (008-1) ...
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
Processing triggers for libc-bin (2.19-18+deb8u3) ...
Processing triggers for systemd (215-17+deb8u3) ...
****************************************************************************************
root@raspberrypi:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
conservative ondemand userspace powersave performance
****************************************************************************************
nano /etc/default/cpufrequtils
****************************************************************************************
# valid values: userspace conservative powersave ondemand performance
# get them from cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors 
GOVERNOR="performance"
****************************************************************************************
**************AFTER BOOT CHECK**********************************************************
****************************************************************************************
root@raspberrypi:/mnt/USBHDD# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
performance
****************************************************************************************
****************************************************************************************
****************************************************************************************
****************************************************************************************
root@raspberrypi:/sys/devices/system/cpu# time echo "scale=1500; 4*a(1)" | bc -l
3.141592653589793238462643383279502884197169399375105820974944592307\
81640628620899862803482534211706798214808651328230664709384460955058\
22317253594081284811174502841027019385211055596446229489549303819644\
28810975665933446128475648233786783165271201909145648566923460348610\
45432664821339360726024914127372458700660631558817488152092096282925\
40917153643678925903600113305305488204665213841469519415116094330572\
70365759591953092186117381932611793105118548074462379962749567351885\
75272489122793818301194912983367336244065664308602139494639522473719\
07021798609437027705392171762931767523846748184676694051320005681271\
45263560827785771342757789609173637178721468440901224953430146549585\
37105079227968925892354201995611212902196086403441815981362977477130\
99605187072113499999983729780499510597317328160963185950244594553469\
08302642522308253344685035261931188171010003137838752886587533208381\
42061717766914730359825349042875546873115956286388235378759375195778\
18577805321712268066130019278766111959092164201989380952572010654858\
63278865936153381827968230301952035301852968995773622599413891249721\
77528347913151557485724245415069595082953311686172785588907509838175\
46374649393192550604009277016711390098488240128583616035637076601047\
10181942955596198946767837449448255379774726847104047534646208046684\
25906949129331367702898915210475216205696602405803815019351125338243\
00355876402474964732639141992726042699227967823547816360093417216412\
19924586315030286182974555706749838505494588586926995690927210797509\
302952

real    0m6.785s
user    0m6.730s
sys     0m0.010s

****************************************************************************************

More Information: https://software.intel.com/sites/default/files/comment/1716807/how-to-change-frequency-on-linux-pub.txt

"Tinder match" is a pun.

tshark -i eth0 -Y 'http.request.method == POST and tcp contains "password"' | grep password

tshark -i eth0 -f "src port 53" -n -T fields -e frame.time -e ip.src -e ip.dst -e dns.qry.name -e dns.resp.addr
tshark -i eth0 -Y http.request -T fields -e http.host -e http.user_agent
tshark -o column.format:""Source", "%s", "Destination", "%d"" -z conv,tcp
tcpdump -nn -v -i eth0 -s 1500 -c 1 'ether[20:2] == 0x2000'

You want to look busy, Simply run this. 

cat /dev/urandom | hexdump -C | grep "ca fe"

It's weird how 'bottle of water' and 'water bottle' typically mean two different things.

Some commands and stuff for the Raspberry Pi, But also can be used on other Linux boxes too.

Securing your box a little bit more. Simply copy and paste these.

echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
echo 0 > /proc/sys/net/ipv4/conf/all/accept_redirects
echo 0 > /proc/sys/net/ipv4/conf/all/accept_source_route
echo 1 > /proc/sys/net/ipv4/tcp_syncookies
echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter
echo 1 > /proc/sys/net/ipv4/conf/all/log_martians
echo 0 > /proc/sys/net/ipv4/ip_forward

# PREVENT YOU SYSTEM FROM ANSWERING ICMP ECHO REQUESTS

echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all

# DROP ICMP ECHO-REQUEST MESSAGES SENT TO BROADCAST OR MULTICAST ADDRESSES

echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts

# DONT ACCEPT ICMP REDIRECT MESSAGES

echo 0 > /proc/sys/net/ipv4/conf/all/accept_redirects

# DONT SEND ICMP REDIRECT MESSAGES

echo 0 > /proc/sys/net/ipv4/conf/all/send_redirects

# DROP SOURCE ROUTED PACKETS

echo 0 > /proc/sys/net/ipv4/conf/all/accept_source_route

# ENABLE TCP SYN COOKIE PROTECTION FROM SYN FLOODS

echo 1 > /proc/sys/net/ipv4/tcp_syncookies

# ENABLE SOURCE ADDRESS SPOOFING PROTECTION

echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter

# LOG PACKETS WITH IMPOSSIBLE ADDRESSES (DUE TO WRONG ROUTES) ON YOUR NETWORK

echo 1 > /proc/sys/net/ipv4/conf/all/log_martians

# DISABLE IPV4 FORWARDING

echo 0 > /proc/sys/net/ipv4/ip_forward