Graylog vs syslog-ng

March 10, 2025 | Author: Michael Stromann
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Graylog
Graylog is a leading centralized log management solution for capturing, storing, and enabling real-time analysis of terabytes of machine data.
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syslog-ng
syslog-ng is the foundation of log collection and management. Optimize your SIEM, meet compliance requirements, and deliver data from a variety of sources.

Logs. Logs are important. If you don't believe that, just wait until something crashes spectacularly and then watch your entire IT department scramble to find out why. Graylog and syslog-ng both exist to make sure that when this happens, you have at least a small hope of understanding what went wrong before someone suggests the age-old solution of turning it off and on again. They both collect logs, they both filter logs, they both alert you when something suspicious happens—because really, isn't that what logs are for? But most importantly, they both exist so you don't have to read raw logs, which is a bit like reading Vogon poetry but with fewer metaphors and more hexadecimal.

Graylog was born in Germany in 2009, which means it's young enough to be ambitious but old enough to have a few existential crises. It doesn't just collect logs; it organizes them into neat little dashboards, making sure your logs feel properly categorized before they inevitably reveal a security disaster. It demands MongoDB and Elasticsearch (or OpenSearch if you're feeling rebellious) to function, which means it comes with a built-in requirement to also manage a small database empire. It’s perfect for those who enjoy words like compliance, SIEM and threat intelligence or who just like their logs presented with the dignity of structured data rather than the chaotic nonsense that machines usually spew.

syslog-ng, on the other hand, has been around since 1998 and hails from Hungary, which means it has the quiet confidence of a system that has seen things and doesn't need fancy dashboards to prove it. It specializes in getting logs from here to there as quickly and efficiently as possible, much like a well-trained intergalactic courier service. Unlike Graylog, it doesn’t demand a whole search backend just to function—it’s happy with simple text files or databases, thank you very much. If you need something lightweight, fast and capable of relaying logs at speeds that would make a sub-ether transmission blush, syslog-ng is the tool for you.

See also: Top 10 IT Monitoring software
Author: Michael Stromann
Michael is an expert in IT Service Management, IT Security and software development. With his extensive experience as a software developer and active involvement in multiple ERP implementation projects, Michael brings a wealth of practical knowledge to his writings. Having previously worked at SAP, he has honed his expertise and gained a deep understanding of software development and implementation processes. Currently, as a freelance developer, Michael continues to contribute to the IT community by sharing his insights through guest articles published on several IT portals. You can contact Michael by email [email protected]