kali

Linux distribution debian based focused on security.

https://docs.kali.org/introduction/what-is-kali-linux

Build bootable USB live

Get https://archive-4.kali.org/kali-images/kali-2019.2/kali-linux-light-2019.2-amd64.iso

   1 # output /var/log/messages when pen was attached
   2 # Jul  6 18:17:12 nb200 kernel: [10389.761660] scsi 4:0:0:0: Direct-Access     Philips  USB Flash Drive  PMAP PQ: 0 ANSI: 4
   3 # Jul  6 18:17:14 nb200 kernel: [10391.687146] sd 4:0:0:0: [sdb] 15133248 512-byte logical blocks: (7.75 GB/7.22 GiB)
   4 # Jul  6 18:17:14 nb200 kernel: [10391.687845] sd 4:0:0:0: [sdb] Write Protect is off
   5 # Jul  6 18:17:14 nb200 kernel: [10391.715891]  sdb: sdb1
   6 # Jul  6 18:17:14 nb200 kernel: [10391.722619] sd 4:0:0:0: [sdb] Attached SCSI removable disk
   7 
   8 dd if=kali-linux-light-2019.2-amd64.iso of=/dev/sdb bs=512k
   9 
  10 # 1902+1 records in
  11 # 1902+1 records out
  12 # 997208064 bytes (997 MB, 951 MiB) copied, 259.342 s, 3.8 MB/s
  13

Deprecated networking commands

ifconfig -> ip a , ip address
netstat -at -n -> ss -at -n
route -> ip r , ip route

Make USB live persistent

Insert pen
fdisk -l

   1 end=7gb
   2 read start _ < <(du -bcm kali-linux-light-2019.2-amd64.iso | tail -1); echo $start
   3 parted /dev/sdb mkpart primary $start $end
   4 
   5 #Warning: You requested a partition from 952MB to 7000MB (sectors
   6 #1859375..13671875).
   7 #The closest location we can manage is 997MB to 7000MB (sectors
   8 #1947072..13671875).
   9 #Is this still acceptable to you?
  10 #Yes/No? Yes                                                               
  11 #Warning: The resulting partition is not properly aligned for best performance.
  12 #Ignore/Cancel? Ignore                                                     
  13 #Information: You may need to update /etc/fstab.
  14 
  15 #create an ext3 file system 
  16 mkfs.ext3 -L persistence /dev/sdb3
  17 e2label /dev/sdb3 persistence
  18 # create the configuration file to enable persistence
  19 mkdir -p /mnt/my_usb
  20 mount /dev/sdb3 /mnt/my_usb
  21 echo "/ union" > /mnt/my_usb/persistence.conf
  22 umount /dev/sdb3

Boot using Esc/F9 in HP laptop (legacy)
Choose Live USB persistence option
Run set xkbmap pt to have portuguese keyboard
Applications, settings, keyboard,layout, pt layout
adduser your_user
change root password with passwd

Connect WiFi

connectBitarus.sh

   1 #!/bin/sh
   2 pkill dhclient
   3 pkill wpa_supplicant
   4 rm /var/run/wpa_supplicant/wlan0
   5 wpa_supplicant -d -c vodafone.conf -i wlan0 -B
   6 sleep 5
   7 ip link set dev wlan0 down
   8 sleep 2
   9 ip link set dev wlan0 up
  10 sleep 2
  11 dhclient -r wlan0
  12 dhclient -4 -v wlan0

/etc/dhcp/dhclient.conf

send host-name = gethostname();
request subnet-mask, broadcast-address, time-offset, routers,
        domain-name, domain-name-servers, domain-search, host-name,
        dhcp6.name-servers, dhcp6.domain-search, dhcp6.fqdn, dhcp6.sntp-servers,
        netbios-name-servers, netbios-scope, interface-mtu,
        ntp-servers;

timeout 60;
retry 60;
reboot 10;
select-timeout 5;
initial-interval 2;

wpa_supplicant.conf, vodafone.conf

ap_scan=1
ctrl_interface=/var/run/wpa_supplicant
network={
  ssid="your_ssid"
  scan_ssid=1
  proto=RSN WPA
  key_mgmt=WPA-PSK
  pairwise=CCMP TKIP
  group=CCMP TKIP
  psk="your pass phrase"
}

Enable sound with alsa

apt-get purge pulseaudio pulseaudio-utils xfce4-pulseaudio-plugin  pavumeter pavucontrol
apt-get install alsa-tools alsa-tools-gui alsa-utils alsa-oss alsamixergui libalsaplayer0
alsamixer # m key mutes or unmutes a channel like master

Set timezone

   1 timedatectl set-timezone Europe/Lisbon

In the XFCE clock select Properties with the right mouse button and set the timezone to Europe/Lisbon.

gcc

test.c

   1 #include <stdio.h>
   2 
   3 int main(int argc, char** argv){
   4   printf("Hello world");
   5   return 0;
   6 }

Compile and execute

   1 gcc-8 test.c -o test
   2 ./test 
   3 # Hello world
   4

Xfce battery plugin

Applications, settings, power manager, show system tray icon.

apt install xfce4-battery-plugin

Panel, right mouse button, add new items, Power manager plugin

mousepad text editor

apt install mousepad

Install openjdk 12

   1 #188 MB size
   2 cd ~
   3 wget https://download.java.net/java/GA/jdk12.0.1/69cfe15208a647278a19ef0990eea691/12/GPL/openjdk-12.0.1_linux-x64_bin.tar.gz