• researchlatest

    host discovery

    In this article you will learn several active and stealth techniques used to discover even highly cloaked hosts. Read more.

    oracle authentication

    Oracle Authentication process requires users to provide correct username, password, database hostname, and instance name (SID). Read more.

    telephony tones

    This article lists known tones that occur on the telephone line. Tones include the ones generate by the phone company, consumer products (e.g. answering machines, faxes, etc.), dialup services, etc. Read more.

    port scanning

    Discovering open ports on a networked system is an important reconnaissance step used to enumerate potentially vulnerable services. In this article you will learn a number of techniques used to perform fast and reliable port scans while bypassing many trivial defenses. Read more.


    nmap (Network MAPper) is a network port scanner with service version and operating system detection engines. The tool was originally developed by Fyodor and published in Phrack Issue 51 in 1997. The tool is command line although a number of GUIs exist. nmap runs on a variety of platforms including Linux, *BSD, Windows, and others. Read more.


    hping is a TCP/IP packet forging tool with embedded Tcl scripting functionality. Developed by antirez in 1998, it is now in its 3rd release. The tool runs on all major operatings systems including Linux, *BSD, and Windows. Read more.

    oracle default ports

    Oracle Database is a complex system requiring a large number of services running on a single system. This article attempts to enumerate common Oracle services and associated network ports found on live systems. Read more.

    oracle tns protocol

    Oracle's proprietary TNS (Transparent Network Substrate) protocol is used to interact with Oracle's RDBMS. In this article you will learn about different TNS packet types and their structure. Read more.

    oracle database commands

    Useful Oracle PL/SQL commands: Read more.

    oracle rdbms

    Oracle Database or RDBMS (Object-Relational Database Management System) is a complex system for storage and retrieval of relational data. In this article you will learn the basic architecture of the Oracle Databases as well as common attacks against it. Read more.