The document discusses the importance of observability for load balancers like HAProxy. It defines observability as the ability to infer the internal state of a system from external outputs. The load balancer acts as an observation tower that sees metrics from multiple targets, allowing comparisons to detect issues. HAProxy provides logs and statistics that can be used for observability to detect
ulogd is a userspace logging daemon for netfilter/iptables related logging. This includes per-packet logging of security violations, per-packet logging for accounting, per-flow logging and flexible user-defined accounting. ulogd-1.x has been around since 2000. Since 2012, 1.x series have entered end-of-life. All production systems should migrate to the stable series ulogd-2.x as soon as possible a
NXLog is a modular, multi-threaded, high-performance log management solution with multi-platform support. In concept it is similar to syslog-ng or rsyslog but is not limited to unix/syslog only. It can collect logs from files in various formats, receive logs from the network remotely over UDP, TCP or TLS/SSL . It supports platform specific sources such as the Windows Eventlog, Linux kernel logs, A
psad: Intrusion Detection and Log Analysis with iptables psad is a collection of three lightweight system daemons (two main daemons and one helper daemon) that run on Linux machines and analyze iptables log messages to detect port scans and other suspicious traffic. A typical deployment is to run psad on the iptables firewall where it has the fastest access to log data. Download Documentation Feat
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