How to detect a hacker attack by gorvam saddar

How to detect a hacker attack

Most computer vulnerabilities can be exploited in a variety of ways. Hacker attacks may use a single specific exploit, several exploits at the same time, a misconfiguration in one of the system components or even a backdoor from an earlier attack. Due to this, detecting hacker attacks is not an easy task, especially for an inexperienced user. This article gives a few basic guidelines to help you figure out either if your machine is under attack or if the security of your system has been compromised. Keep in mind just like with viruses, there is no 100% guarantee you will detect a hacker attack this way. However, there's a good chance that if your system has been hacked, it will display one or more of the following behaviours.

tips for secure online shopping by gorvam saddar

Shopping online isn’t just as safe as handing over your credit card in a store or restaurant. However, if you take care of few things it can be a safe deal. Following are the things you should take care of:

   1. Never respond to an email request for credit card details. All reputable companies will conduct transactions with you over a secure website connection.
   2. Remember to never respond to any email advertisement, and only visit sites you know or have book marked, and verify the address before browsing further.
   3. Only buy from trusted brands and websites.....

Snort by gorvam saddar

Introduction to Snort
1
Introduction to Snort
A lightweight Intrusion Detection System by Marty Roesch
Document based extensively on original snort documentation from /usr/local/share/snort

Introduction to Snort
2
Using Snort
What is snort?
Snort is a lightweight intrusion detection system that can log packets coming across your network. This

WAN TECHNOLOGIES by Gorvam saddar

INTRODUCTION TO WAN TECHNOLOGIES

This chapter introduces the various protocols and technologies used in wide-area network (WAN) environments. Topics summarized here include point-to-point links, circuit switching, packet switching, virtual circuits, dialup services, and WAN devices. Chapters in Part III, "WAN Protocols," address specific technologies in more detail.

What Is a WAN?

A WAN is a data communications network that covers a relatively broad geographic area and that often uses transmission facilities provided by common carriers, such as telephone companies. WAN technologies generally function at the lower three layers of the OSI reference model: the physical layer, the data link layer, and the network layer. Figure 3-1 illustrates the relationship between the common WAN technologies and the OSI model.....

OSI REFRENCE MODEL - clear conclusion complete very easy by Gorvam Saddar

THE OSI REFERENCE MODEL

ALL PEOPLE SEEM TO NEED DATA PROCESSING

7          6                      5               4        3              2               1

LAYER WHAT THE LAYER IS RESPONSIBLE FOR/SERVICES ETC. CORRESPONDING DEVICES CORRESPONDING PROTOCOLS Application 7 1. Interface between the user & the computer (applications & Gateways). Provides services that directly support user applications, such as the USER INTERFACE, E-MAIL, FILE TRANSFER, TERMINAL EMULATION, DATABASE ACCESS, etc. 2. API incorporated in this layer 3. Allows applications to use the network. 4. Handles Network access, flow control & error recovery. 5. Messages are sent between layers. Gateways (can work at all layers) · SNMP · FTP · TELNET · WWW · HTTP · SMB · NCP · TCP · TFTP · NFS · SMTP

ALL PANETRATION TESTING TOOLS REQUIRED FOR ALL SECURITY PROFESSIONALS By Gorvam saddar

37 Powerful Penetration Testing Tools For Every Penetration Tester

Posted In | Security testing, Software Testing Tools

Wouldn’t it be fun if a company hired you to hack its website/ network/ Server? Well, Yeah!!!

Penetration testing, commonly called as pen-testing is a on a roll in the testing circle these days. The reason is not hard to guess – with the change in the way computer systems are used and built, security takes the center stage. Even though companies realize they can’t make every system 100% secure, they are extremely interested to know exactly what kind of security issues they are dealing with. That’s where Pen-testing comes handy with its use of ethical hacking techniques....

HeartBleed Bug Explained.. by gorvam saddar

HeartBleed Bug Explained - 10 Most Frequently Asked Questions

Heartbleed – I think now it’s not a new name for you, as every informational website, Media and Security researchers are talking about probably the biggest Internet vulnerability in recent history. It is a critical bug in the OpenSSL's implementation of the TLS/DTLS heartbeat extension that allows attackers to read portions of the affected server’s memory, potentially revealing users data, that the server did not intend to reveal.

After the story broke online, websites around the world flooded with the heartbleed articles, explaining how it works, how to protect, and exactly what it is. Yet many didn’t get it right. So based on the queries of Internet users, we answered some frequently asked questions about the bug.

1.) IS HEARTBLEED A VIRUS?