• Understanding Differences in Syslog Daemons

    Depending on the operating system or distribution you use, the default syslog daemon may vary. Common options include syslogd, rsyslog, and syslog-ng. Each serves the same fundamental purpose: managing the syslog process and handling log calls on the server. However, they differ in features, configuration, and syntax. Key Syslog Daemons…

  • Fragmentation Attacks: Log Examples

    Fragmentation attacks are a type of network-based Denial of Service (DoS) attack that exploit how systems reassemble fragmented packets. How Fragmentation Attacks Work When data packets exceed the maximum transmission unit (MTU) of a network, they are split into smaller fragments. The receiving system must reassemble these fragments to reconstruct…

  • Smurf Attacks: Log Examples

    Smurf attacks are a type of protocol Distributed Denial of Service (DDoS) attack that exploit vulnerabilities in the Internet Control Message Protocol (ICMP). By abusing the broadcast functionality of a network, attackers flood the target system with amplified traffic, overwhelming its resources and causing service disruptions. How Smurf Attacks Work…

  • Ping of Death Attacks: Log Examples

    The Ping of Death is a type of protocol Denial of Service (DoS) attack that exploits vulnerabilities in the way systems handle oversized ICMP packets. How Ping of Death Attacks Work In a standard ping request, the ICMP packet size is limited to 65,535 bytes. In a Ping of Death…

  • ACK Flood Attacks: Log Examples

    ACK Flood attacks are a type of protocol Distributed Denial of Service (DDoS) attack that targets the Transmission Control Protocol (TCP). These attacks exploit the acknowledgment (ACK) packets in TCP communication to overload the target’s network, CPU, or memory resources. By sending a flood of ACK packets, attackers can disrupt…

  • SSL/TLS Exhaustion Attacks: Log Examples

    SSL/TLS Exhaustion Attacks are a type of application layer Distributed Denial of Service (DDoS) attack that targets the computational overhead of establishing encrypted connections. How SSL/TLS Exhaustion Attacks Work The SSL/TLS handshake is a multi-step process that involves key exchange, certificate validation, and encryption setup. This process is computationally expensive…

  • DNS Query Floods: Network Logs

    DNS Query Floods are a type of application layer Distributed Denial of Service (DDoS) attack that targets the Domain Name System (DNS). Attackers flood DNS servers with a high volume of requests, overwhelming the server’s resources and preventing legitimate users from accessing the intended domain. These attacks can disrupt critical…

  • HTTP Flood Attacks: Web Access Logs

    HTTP Flood attacks are a common type of application-layer DDoS attack that targets web servers by overwhelming them with a massive number of HTTP requests. Attackers send a high volume of seemingly legitimate HTTP GET or POST requests to the target web server. These requests often include valid headers and…

  • SYN Flood Attacks: Web Access Logs

    A SYN Flood attack is a type of Distributed Denial of Service (DDoS) attack that targets the handshake process of the Transmission Control Protocol (TCP). In a standard TCP handshake, a client initiates a connection by sending a SYN (synchronize) packet to the server. The server responds with a SYN-ACK…

  • The Slowloris Attack: What It Looks Like in Web Logs

    The Slowloris attack is a type of application-layer DDoS attack that targets a web server by opening multiple connections and sending HTTP requests very slowly, keeping these connections alive for as long as possible. This exhausts the server’s connection pool and prevents it from handling legitimate traffic. Here’s what Slowloris…