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Large language models (LLMs) have become mainstream. Recent estimates suggest there are over 1.1 billion ChatGPT users. LLMs and AI agents have become a part of every aspect of our lives, from writing emails to coding and everything in between. Yet, this scenario is a cybersecurity incident waiting to happen. Many developers aren’t used to ...
As we get prepared to meet again in Stockholm for the Nordic APIs Summit (this will be our ninth Summit), I wanted to take a moment to reflect on the importance of in-person events. Especially the importance of in-person technology conferences that get real humans together to talk shop. We all know the excitement, energy, ...
AI agents have rapidly become a new kind of software consumer. Where traditional applications analyze and recommend, autonomous agents can now interpret goals, make decisions, find tools, and take actions. Through API integrations and interactions, agents can coordinate actions across a range of systems and chain together their own workflows that might initially seem fairly ...
Ahead of her Nordic APIs Summit 2026 talk on API standards for agents, TM Forum’s Lorna Mitchell joins us to talk about how — or whether — agentic has changed what good API design looks like. There are those who believe that the rise of agentic API consumption will change what software development looks like ...
A practical Bash scripting guide for Linux users who know the command line but haven't committed to writing scripts yet. Covers variables, conditionals, loops, functions, error handling, and real-world examples you can actually use.Continue reading...
Non-determinism is a concept that has existed for decades. However, it has rarely been a central part of software design — until the rise of large language models (LLMs). These models enable developers to build probabilistic AI applications, such as autonomous AI agents. Traditionally, developers build deterministic software that initiates concrete, repeatable actions, where they ...
The age of AI is firmly upon us — and as more teams adopt artificial intelligence and agentic flows, providers are increasingly finding that their old strategies and approaches need to shift. One area where this is rapidly becoming a concern is in the domain of developer portals. Developer portals were built around a very ...
AI agents are quickly rising in the enterprise. They’re granting more powers to knowledge workers across sales, finance, engineering, marketing, and other disciplines in the process. Yet, as most quick technological adoptions go, security is often falling by the wayside or being implemented after the fact. Ahead of Nordic APIs Summit 2026, we’re connecting with ...
For over two decades, API design and architecture remained remarkably consistent. Perhaps it’s the outsized influence of Roy Fielding’s RESTful dissertation, but API designers have stuck to the principles of stateless architecture, resource-based endpoints, and HTTP commands to an impressive degree. That’s all starting to change, now that we’ve radically recontextualized the way we use ...
Ahead of Nordic APIs Summit 2026, we catch up with speaker Claire Barrett on the mindset shift needed for adopting AI-enabled strategies. “Imagine driving around an old town,” responds Claire Barrett when asked to describe what it means to be AI-ready from an integration perspective. “Imagine a European city that’s been inhabited for thousands of ...
If your Linux server is bogged down by disk I/O, your first step may often be to use the top command in the terminal to check load averages.Continue reading...
Traditional monitoring tools, such as application performance monitoring (APM), were engineered to monitor deterministic software where specific inputs reliably lead to predictable outputs through hard-coded logic. When a traditional API fails, it usually throws a 500 Internal Server Error. But when an AI agent fails, it might return a perfectly healthy 200 OK status code ...
Ahead of his Nordic APIs Summit 2026 talk on API coherence, London Stock Exchange Group’s Gareth Faull joins us to talk about the art of aligning APIs with organizational intent. Measuring the performance of an API is a relatively straightforward process: ensure observability is in place, follow governance best practices, measure uptime, track usage statistics, ...
Bash history does a lot more than scroll up. Learn how to configure HISTSIZE, timestamps, multi-terminal sync, and search shortcuts to get real productivity gains at the command line.Continue reading...
The latest release of the Model Context Protocol (MCP) specification has created a lot of buzz in tech circles. Why? Primarily because this AI communication protocol has now gone stateless! This shift from stateful to stateless impacts how developers of MCP servers and AI tools use the protocol moving forward. In addition, the change impacts ...
Business identity is a complex issue rife with risks across the board. Large enterprises often require deep, flexible integrations with dozens or hundreds of partners, but this comes with significant risk — between the potential for information leakage, concerns around replays or data usage for continued insecure access, and the sheer friction of such a ...
In May 2026, Cloudflare released a new tool called isitagentready.com. It analyzes a URL for everything an agentic AI would need to interact with a site and then returns a score out of 100. Even better still, it breaks down its assessment by category, letting you know how your site performs for discoverability, accessibility from ...
A practical guide to creating, managing, and tuning swap files and swap partitions on Linux using mkswap, swapon, and swapoff, with real commands and common troubleshooting fixes.Continue reading...
I recently reinstalled my main desktop from scratch: Debian testing via Kali underneath (read first before judging) and XFCE on top. One of the reasons I keep coming back to XFCE is its built-in power management.Continue reading...
A point lookup that misses RocksDB’s block cache can spend most of its time waiting for storage. The traditional way to keep more reads in flight is to add threads. That works, but each outstanding read parks a thread, carries a stack, and adds context-switching overhead. RocksDB now has experimental asynchronous Get and MultiGet APIs backed by native C++ coroutines. When a read reaches storage, RocksDB can suspend the request, let its read-executor worker run another ready task, and resume the request when the filesystem reports completion. A small executor can therefore maintain more…
Learn how to tune Linux kernel parameters using sysctl and /proc/sys for better network throughput, memory management, file I/O, and server security. Includes a ready-to-use baseline config.Continue reading...
Ahead of Nordic APIs Summit 2026, we check in with speaker Andrea Arcuri on how fuzz testing for APIs is evolving. “You cannot really check security properties if all your HTTP calls fail with a 4xx because your techniques can’t generate the right test data to pass the first layer of input validation,” answers Andrea ...
The /proc filesystem is a live window into the Linux kernel: process state, memory layout, CPU counters, network stats, and writable kernel tunables, all accessible with nothing but cat and grep. This guide walks through the most useful files and per-process directories with practical examples.Continue reading...
Ahead of his 2026 Nordic APIs Summit talk on scaling data ingestion without turning to Kubernetes, we check in with Bauer Media Group UK’s Faith Sodipe to talk about infrastructure complexity. In the tech space, perhaps more than in any other, we are always looking for the next big thing. Whenever a new platform, standard, ...
Over the last decade, enterprises invested heavily in API infrastructure. They purchased API management platforms, deployed gateways across business units and regions, built developer portals, introduced security and observability tools, and encouraged teams to adopt API-first development. The business case was compelling. APIs would make enterprise capabilities easier to reuse, shorten integration timelines, improve partner ...
A practical guide to DNS resolution on Linux: how /etc/resolv.conf, systemd-resolved, and dig work together, and how to troubleshoot common nameserver failures.Continue reading...
A single agentic workflow calling a single API is an easily tractable engineering problem — the solutions exist, and it’s ultimately just a problem of visibility and integration. A fleet of specialized agents delegating tasks to each other, sharing state, and discovering tools at runtime is decidedly more difficult — almost an order of magnitude ...
APIs are like the backstage crew of the digital economy. They’re not front and center, but they’re essential for putting on a show. Yet, from a business perspective, APIs have traditionally been regarded as a form of “operational plumbing,” with many enterprises treating them as technical infrastructure rather than strategic assets. However, companies like Stripe, ...
Password-based SSH login is a liability. This guide walks through generating SSH key pairs with ssh-keygen, deploying public keys, disabling password authentication, and managing multiple keys cleanly with ~/.ssh/config.Continue reading...
The nc command (netcat) is a lightweight but surprisingly powerful networking tool for port testing, file transfers, banner grabbing, and connectivity debugging. This practical guide covers the flags and real-world usage patterns that Linux users and sysadmins actually reach for.Continue reading...
If you’re an API or application developer, you likely hear the term “token” a lot. However, that term has entirely different meanings depending on the developer and the industry. Maybe you’re a developer who just implemented token-based authentication or found out the AI agent you built uses far too many LLM tokens. Perhaps you’re experimenting ...
In a 2018 Forbes article, Jedidiah Yueh and Randy Bean argued that every company is now a data company. “Leveraging data — in an ethical manner — has to be at the heart of your company and product strategy,” they wrote. “Collect, sift, then monetize.” Just shy of a decade later, virtually every company (in ...
The regulatory framework has changed significantly over the last decade. GDPR was once largely theoretical. But now, multi-billion euro fines have made it a solid statement on European privacy. India’s DPDP Act has enforced privacy protections for Indian citizens, Brazil’s LGPD is actively enforced against multinational corporations, and China’s PIPL and DSL impose strict cross-border ...
A recent report from Salt Security published a truly alarming statistic. According to the report, 95% of API attacks come from authenticated sources. This should raise alarms for anyone who knows anything about cybersecurity, as it means API attacks are seemingly real transactions. These attacks won’t even be noticed by average cybersecurity systems, as, for ...
If you've ever looked at your server and wondered why it's using swap even though plenty of RAM is available, you're not alone. This is a common scenario on Linux systems, and it can impact performance if not addressed.Continue reading...
Hard links and soft links in Linux both use the ln command but behave very differently. This practical guide explains exactly how each works, when to use which, and how to avoid the common pitfalls that catch even experienced sysadmins.Continue reading...
Servers give you warnings before they fail. Most sysadmins performing Linux server monitoring miss them because they're watching the wrong numbers. The metrics that actually matter are one level deeper: iowait instead of CPU percentage, active swap paging instead of memory usage, inode counts instead of just disk space.Continue reading...
Linux is a powerful and versatile operating system that can be used for a wide range of purposes. For many system administrators, the command line interface is the primary way to interact with the system.Continue reading...
Update (one year later): The verdict is in. I went with the TP-Link SG2210XMP-M2, and after a full year in the rack it's been running flawlessly: fanless, multigig, VLANs and not a single issue.Continue reading...
This article is inspired by our LinuxCommunity.io forum discussion thread (thanks to users @tmick and @shybry747 for the feedback). Let's walk through what Podman is and how to use it as a Docker alternative on Linux.Continue reading...
Last week I walked into an empty 5 × 4 ft storage room. By the end of the week, that blank space held a fully functional network core designed to keep a small professional office online through power cuts, ISP hiccups, and future growth.Continue reading...
The watch command runs any Linux command repeatedly at a set interval and displays the output full-screen, making it one of the quickest ways to monitor live system activity without writing a script. This guide covers all the key options with practical examples for real sysadmin use cases.Continue reading...
RocksDB has historically been known for poor performance when tombstones accumulate. This has become a common problem within Meta, and the community has raised it as well. Here, we introduce an optimization that attempts to convert contiguous tombstones into a range tombstone during scans. As a result, instead of skipping through N tombstones, we only need to skip through a single range tombstone. Background: point tombstones and range tombstones RocksDB is an LSM-tree, so a delete does not erase data in place. It writes a tombstone: a marker that shadows older values. A point tombstone (from…
TL;DR Blob Direct Write moves large-value separation earlier in RocksDB’s write path. When enable_blob_files and enable_blob_direct_write are enabled, values at or above min_blob_size can be written directly to blob files during a write, while the WAL and memtable store a compact BlobIndex reference instead of the full value. The companion partitioning support makes this more than a write-path optimization. A column family can have multiple direct-write blob partitions, and applications can provide a BlobFilePartitionStrategy to choose where each large value goes. That turns blob files into a…
RocksDB 11.0 added CompactionOptionsFIFO::max_data_files_size and CompactionOptionsFIFO::use_kv_ratio_compaction for a specific but important shape of workload: FIFO compaction, integrated BlobDB, large values, point lookups, and data that naturally expires by TTL or by a bounded data-size budget. The implementation was added in pull request #14326. The goal is to keep FIFO’s low write amplification while reducing the read overhead caused by many small L0 files. The new picker uses the observed ratio between SST bytes and blob bytes to choose a stable target SST size, then moves L0 files…
I’ll admit, I hesitated a bit before writing this post. The whole point of this linuxblog.io and linuxcommunity.io forum is to bring together like-minded Linux users and professionals so we can troubleshoot, share ideas, and learn from one another.Continue reading...
Nginx TLS tuning won't fix a slow application, but it does cut handshake overhead and improve connection reuse, which shaves milliseconds off every HTTPS request.Continue reading...
tmpfs lets you mount a filesystem entirely in RAM. Here is how Linux already uses it, how to create your own mounts, and where it actually makes sense to use one.Continue reading...
Every so often, something surfaces in the LinuxCommunity.io forums that deserves a wider audience. Generally it is a question, a solved problem, or a quick tip.Continue reading...
A practical guide to Linux user and group management using useradd, usermod, userdel, groupadd, gpasswd, and chage. Covers real-world examples, common mistakes, service accounts, and safe account removal.Continue reading...