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Showing posts with the label AWS

Check Listening Ports in Linux (Ports in use)

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  How to Check for Listening Ports in Linux (Ports in use) When troubleshooting network connectivity or application-specific issues, one of the first things to check should be what ports are actually in use on your system and which application is listening on a specific port. This article explains how to use the  netstat ,  ss  and  lsof  commands to find out which services are listening on which ports. The instructions are applicable for all Linux and Unix-based operating systems like macOS. What is Listening Port Network port is identified by its number, the associated IP address, and type of the communication protocol, such as TCP or UDP. Listening port is a network port on which an application or process listens on, acting as a communication endpoint. Each listening port can be open or closed (filtered) using a firewall. In general terms, an  open port  is a network port that accepts incoming packets from remote locations. You can’t have two s...
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Instructions to Prevent DDoS Attacks: 7 Tried-and-Tested Methods

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Instructions to Prevent DDoS Attacks:  7 Tried-and-Tested Methods A DDoS assault empowers a programmer to flood an organization or server with counterfeit traffic. An excess of traffic over-burdens assets and upsets availability, preventing the framework from handling certified client demands. Administrations become inaccessible, and the objective organization experiences delayed personal time, lost income, and disappointed clients. This article clarifies how a business can forestall DDoS assaults and remain a stride in front of would-be programmers. The practices we show underneath assist with limiting the effect of a DDoS and guarantee a speedy recuperation from an assault endeavor What Is a DDoS Attack? A DDoS (Distributed Denial of Service) is a cyberattack that intends to crash an organization, administration, or server by flooding the framework with counterfeit traffic. The abrupt spike in messages, association solicitations, or parcels overpowers the objective's foundation a...
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What is DDoS ?

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  WHAT IS A DDOS ATTACK? A Distributed  Denial of Service (DoS) attack is a malicious attempt to affect the availability of a targeted system, such as a website or application, to legitimate end-users. Typically, attackers generate large volumes of packets or requests ultimately overwhelming the target system. In the case of a Distributed Denial of Service (DDoS) attack, the attacker uses multiple compromised or controlled sources to generate the attack. In general, DDoS attacks can be segregated by which layer of the Open Systems Interconnection (OSI) model they attack. They are most common at the Network (layer 3), Transport (Layer 4), Presentation (Layer 6), and Application (Layer 7) Layers. DDOS Attack Classification While thinking about mitigation techniques against these attacks, it is useful to group them as Infrastructure layer (Layers 3 and 4) and Application Layer (Layer 6 and 7) attacks. Infrastructure Layer Attacks Attacks at Layer 3 and 4, are typically ...
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