Port scanning is the act of scanning a network or hosts in order to determine which network ports are open and thus which service they provide.
While the web (also known as the World Wide Web) is the most used … Read more
Tag: linux
Port scanning is the act of scanning a network or hosts in order to determine which network ports are open and thus which service they provide.
While the web (also known as the World Wide Web) is the most used … Read more
Say you want to send an important file, how do you ensure that the receiver will get the exact file without any changes ?
Well, the most common approach is use hashing, which translates the file information into fixed sized … Read more
Address resolution protocol (ARP) is one the simplest network protocols. It simply maps IP to physical addresses. When used with Ethernet, IP are mapped to MAC addresses.
Though simple, it is very important for interconnection hosts in … Read more
A regular expression is a sequence of characters defining a search pattern. It is one of the most powerful tools when it comes to mass text data filtering and modification.
Regular expressions often scares the newcomers but even with a … Read more
With the advancement in technology, there is an increasing risk of cyber-attacks. Websites are becoming more vulnerable to these attacks due to a lot of reasons. SQL injection attacks are increasing rapidly, and the security of web applications is at … Read more
Steganography is the practice of hiding information within a non-secret information. Early examples are writing secret messages on letters with invisible ink.
A more modern usage of Steganography in the information era is hiding data in … Read more
Ethical hackers and penetration testers often tries to break into a system, and one of the main techniques is to crack the password of the system.
Attackers always need wordlists for different purposes, if he/she gathers enough information about the … Read more
IP forwarding is about sending a network packet from one network interface to another, it is a synonym of routing.
If your Linux machine has multiple network interfaces, and if traffic comes in one interface that matches a subnet of … Read more