Finding all executables in a given path is easy if you use the lsx utility. Firstly install the required packages. jason@eyjafjallajkull:~$ sudo apt-get install suckless-tools [sudo] password for jason: Reading package lists… Done Building dependency tree Reading state information… Done Suggested packages: dwm stterm surf The following NEW packages will be installed: suckless-tools 0 to … Read more
If your machine has errors with the hard disk and your machine has booted with a read-only filesystem, these commands can force your machine to either shutdown or reboot. Forced re-boot. echo 1 > /proc/sys/kernel/sysrq echo b > /proc/sysrq-triggerecho 1 > /proc/sys/kernel/sysrq echo b > /proc/sysrq-trigger Forced shutdown. echo 1 > /proc/sys/kernel/sysrq echo o > … Read more
Damn Vulnerable Web App is a PHP web application that is deliberately vulnerable. This is used to learn how to attack websites by exploiting various vulnerabilities in the software. In this example, I am showing you how to use an SQL injection attack to get information out of the database. This line of code will … Read more
How to build a kernel on Linux from a vanilla tarball Further reading, how to compile a vanilla kernel on Debian Linux. http://securitronlinux.com/debian-testing/how-to-build-a-4-8-4-linux-kernel-on-ubuntu-16-10/. This guide will really help out a Linux user to install a kernel from source.
The loopback address of the network interface, usually 127.0.0.1, is the address used by the operating system to access the network interface itself. This is represented in IPv6 as 0:0:0:0:0:0:0:1:/128 or ::1/128 when compressed. This gives the computer user a way to ping a network interface and verify that it is actually working. The ping6 … Read more
The find command is very useful for locating files on your Linux filesystem. Below is an example of wildcards to locate files in the /boot directory. ubuntu@ip-172-31-20-16:~$ sudo find /boot -name "vm*" /boot/vmlinuz-3.13.0-44-genericubuntu@ip-172-31-20-16:~$ sudo find /boot -name "vm*" /boot/vmlinuz-3.13.0-44-generic Here I am searching the whole / filesystem for a set of files that end in … Read more
Below is a snippet of output from my Kali Linux session. I am trying to recover files from a USB thumb drive and I am having some success. root@kali:/home/root/Desktop/files# foremost /dev/sdb1 -v -o /home/root/Desktop/files/ Foremost version 1.5.7 by Jesse Kornblum, Kris Kendall, and Nick Mikus Audit File Foremost started at Thu Mar 12 11:12:06 … Read more
The runas command in Windows allows a user to elevate their level of privileges to run a command as the Administrator user. The example below shows the usage of the runas command to open another cmd window as the Administrator user. C:\Users\mike\Documents\openvpn>runas /user:Scott\Dobbo cmd Enter the password for Scott\Dobbo: Attempting to start cmd as user … Read more
This paper I found, PDF relates to the routing of network packets through a satellite connection. This might be very interesting to a student of networking who is interested in satellite networking and the unavoidable latency issues that come with such a connection. With a 250ms latency, this would add on to any existing latency … Read more
Firstly, for the purposes of this exercise, we are creating a new user with a simple password. I used a user named “vaas” and gave him the simple password “password”. Then run this command to create the file that john the ripper will be using. ubuntu@ip-172-31-20-16:~$ sudo unshadow /etc/passwd /etc/shadow > pass.outubuntu@ip-172-31-20-16:~$ sudo unshadow /etc/passwd … Read more
I wanted to update my Ubuntu 14.04 server and I saw this output. I needed to remove these unwanted packages on my system. ubuntu@ip-172-31-20-16:~$ sudo apt-get upgrade Reading package lists… Done Building dependency tree Reading state information… Done Calculating upgrade… Done The following packages were automatically installed and are no longer required: libdigest-hmac-perl libdrm-intel1 libdrm-nouveau2 … Read more
The jp2a package for Ubuntu will convert a jpeg image into an ascii text representation. This is useful for creating useful ascii images to post on the Internet. Install it by typing: sudo apt-get install jp2a and then convert an image this way. ~$ jp2a myimage.jpg~$ jp2a myimage.jpg This will output ascii text to the … Read more