Operations | Monitoring | ITSM | DevOps | Cloud

Discover how the DNS protocol translates domain names into IP addresses, how DNS lookups chain through resolver servers, and how to read a DNS packet.

A recent update to VirtualMetric DataStream centers on how content moves into the platform and how securely it travels. Content management has been reworked around a GitOps workflow, TLS configuration has been reworked across devices and targets, and a broad set of new database devices, targets, and pipeline improvements have been added. Here’s what’s new.

AIOps explained in plain terms: what it means, how it differs from AI-SRE and MLOps, how it detects problems, and whether a small team needs it. Sejal Pandey works on content and growth at Last9, writing about observability, reliability, and SRE practices.

The default way to adopt log management is to ship everything and search it later. It is the path every vendor’s quickstart puts you on, and it is the reason log bills surprise people: ingestion is priced by volume, so“ship everything” is a spending decision disguised as a configuration default. The uncomfortable part is that most of that volume is never read. Nobody greps last Tuesday’s 200 OK access lines.

A Real-Time Operating System (RTOS) is an operating system designed for predictable execution in embedded systems. RTOSes are commonly used for applications with real-time requirements, but are also used to simplify the development of complex embedded applications.

Running Icinga 2 in a rootless Podman container is pretty straightforward, it works just the same as on Docker, so all the examples on our Docker Hub page work as expected. For example this one to generate certificates and initialize the master configuration: Same as with mounting some existing configuration into the container: But once you want to combine the two, for example to store the certificates on the host and mount them into the container, generating or renewing certificates will fail.

Why do so many patching programs pass every internal check and still come back from an Essential Eight assessment rated at Maturity Level One? The answer is rarely speed. Teams that miss the mark are usually patching their servers, browsers, and office suites on schedule, then losing the rating on the fifty applications nobody put on a list. Maturity Level Two is where the Essential Eight stops asking how fast you patch and starts asking how much you can see.

Most managed service providers do not replace their ticketing tool because ticket volume got too high. They replace it because a client asked for a report the tool could not produce. That moment usually arrives between the third and tenth client. The shared inbox and the general help desk that carried you this far stop holding the accounts apart. Per-client reporting is usually the first thing to give way. An MSP ticketing system takes support requests from every client you serve.

Every network engineer carries an instinct that outsiders mistake for caution: a change in one place can travel. Reroute a path, push a policy, drop an interface, and the effect can ripple across campus, data center, WAN, and cloud before the first alert is read. The blast radius of a network change is the reason operators move deliberately, and it is the single most important thing an AI agent takes on the moment it is allowed to act on the network instead of merely describe it.