Saturday, 19 March 2016

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



Sunday, 7 February 2016

Block Windows 10 "Telemetry" with Cisco ACL's

Following on from the in-depth post here... https://voat.co/v/technology/comments/835741

I have created a Cisco ACL that blocks all traffic to the IP's listed. 

Simply copy and paste this and apply this to your Interfaces on a Cisco Device. 

access-list 101 deny ip any host 13.107.3.128
access-list 101 deny ip any host 23.9.123.27
access-list 101 deny ip any host 23.67.60.65
access-list 101 deny ip any host 23.67.60.73
access-list 101 deny ip any host 23.67.60.97
access-list 101 deny ip any host 23.74.8.80
access-list 101 deny ip any host 23.74.8.99
access-list 101 deny ip any host 23.74.9.198
access-list 101 deny ip any host 23.74.9.217
access-list 101 deny ip any host 23.96.212.225
access-list 101 deny ip any host 23.101.115.193
access-list 101 deny ip any host 23.101.156.198
access-list 101 deny ip any host 23.101.187.68
access-list 101 deny ip any host 23.102.17.214
access-list 101 deny ip any host 23.193.225.197
access-list 101 deny ip any host 23.193.230.88
access-list 101 deny ip any host 23.193.236.70
access-list 101 deny ip any host 23.193.238.90
access-list 101 deny ip any host 23.193.251.132
access-list 101 deny ip any host 23.210.5.16
access-list 101 deny ip any host 23.210.48.42
access-list 101 deny ip any host 23.210.63.75
access-list 101 deny ip any host 23.217.138.11
access-list 101 deny ip any host 23.217.138.18
access-list 101 deny ip any host 23.217.138.25
access-list 101 deny ip any host 23.217.138.43
access-list 101 deny ip any host 23.217.138.90
access-list 101 deny ip any host 23.217.138.97
access-list 101 deny ip any host 23.217.138.122
access-list 101 deny ip any host 40.117.145.132
access-list 101 deny ip any host 64.4.54.253
access-list 101 deny ip any host 64.4.54.254
access-list 101 deny ip any host 65.52.108.27
access-list 101 deny ip any host 65.52.108.29
access-list 101 deny ip any host 65.52.108.92
access-list 101 deny ip any host 65.52.108.94
access-list 101 deny ip any host 65.52.108.103
access-list 101 deny ip any host 65.52.108.252
access-list 101 deny ip any host 65.52.236.160
access-list 101 deny ip any host 65.55.44.108
access-list 101 deny ip any host 65.55.113.13
access-list 101 deny ip any host 65.55.138.111
access-list 101 deny ip any host 65.55.138.126
access-list 101 deny ip any host 65.55.252.43
access-list 101 deny ip any host 72.21.81.200
access-list 101 deny ip any host 72.21.91.8
access-list 101 deny ip any host 94.245.121.253
access-list 101 deny ip any host 94.245.121.254
access-list 101 deny ip any host 104.73.92.149
access-list 101 deny ip any host 104.73.138.217
access-list 101 deny ip any host 104.73.143.160
access-list 101 deny ip any host 104.73.153.9
access-list 101 deny ip any host 104.73.160.16
access-list 101 deny ip any host 104.73.160.51
access-list 101 deny ip any host 104.73.160.58
access-list 101 deny ip any host 104.91.166.82
access-list 101 deny ip any host 104.91.188.21
access-list 101 deny ip any host 104.208.28.54
access-list 101 deny ip any host 131.253.40.53
access-list 101 deny ip any host 131.253.40.59
access-list 101 deny ip any host 131.253.61.66
access-list 101 deny ip any host 131.253.61.82
access-list 101 deny ip any host 131.253.61.84
access-list 101 deny ip any host 131.253.61.96
access-list 101 deny ip any host 131.253.61.100
access-list 101 deny ip any host 134.170.51.246
access-list 101 deny ip any host 134.170.51.247
access-list 101 deny ip any host 134.170.58.118
access-list 101 deny ip any host 134.170.58.190
access-list 101 deny ip any host 134.170.115.62
access-list 101 deny ip any host 134.170.165.251
access-list 101 deny ip any host 134.170.165.253
access-list 101 deny ip any host 134.170.179.87
access-list 101 deny ip any host 137.116.74.190
access-list 101 deny ip any host 157.55.240.220
access-list 101 deny ip any host 157.56.77.138
access-list 101 deny ip any host 157.56.77.139
access-list 101 deny ip any host 157.56.96.58
access-list 101 deny ip any host 157.56.96.123
access-list 101 deny ip any host 157.56.144.215
access-list 101 deny ip any host 157.56.144.216
access-list 101 deny ip any host 191.232.80.58
access-list 101 deny ip any host 198.41.214.183
access-list 101 deny ip any host 198.41.214.184
access-list 101 deny ip any host 198.41.214.186
access-list 101 deny ip any host 198.41.214.187
access-list 101 deny ip any host 198.41.215.182
access-list 101 deny ip any host 198.41.215.185
access-list 101 deny ip any host 198.41.215.186
access-list 101 deny ip any host 204.79.197.200
access-list 101 deny ip any host 207.46.7.252
access-list 101 deny ip any host 207.46.101.29
access-list 101 deny ip any host 207.46.114.58
access-list 101 permit ip any any

Saturday, 16 January 2016

Remove Secret Cisco History

show history all <------- You will be surprised what is actually there

try these commands.
Router(config)#line vty 0 4
Router(config-line)#no history
Router(config)#line console 0
Router(config-line)#no history

Monday, 4 January 2016

2016 Stock Pick List

Company name                    Symbol  Currency    P/E ratio
Tate & Lyle PLC                 TATE    GBX         147.87
Sceptre Leisure Plc.            SCEL    GBX         147.62
Easyhotel PLC                   EZH     GBX         141.48
Premier Farnell plc             PFLB    GBX         141.03
Severfield PLC                  SFR     GBX         139.98
Fresnillo Plc                   FRES    GBX         139.36
DM PLC                          DMP     GBX         131.38
Scientific Digital Imaging plc  SDI     GBX         129.41
Brunner Investment Trust Plc    44GL    GBX         127
Premier Farnell plc             PFLA    GBX         126.22
Crimson Tide plc                TIDE    GBX         123.46
Barclays PLC                    BARC    GBX         122.63
Mortice Limited                 MORT    GBX         122.3
Immedia Group PLC               IME     GBX         120.37
Lowland Investment Company plc  LWI     GBX         114.64
Vectura Group PLC               VEC     GBX         114.24
Consort Medical plc             CSRT    GBX         108.83
Value and Income Trust plc      VIN     GBX         108.41
Digital Globe Services Ltd      DGS     GBX         107.53
Tanfield Group plc              TAN     GBX         106.16
 
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