explainshell.com

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Match linux command-line arguments to view their help text.

stackshare.io

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Dev / Production stacks for all to see. Handy tool to see what software is trending today.

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Amazons’s cloud computing & web hosting service.

AWS Cost Explorer launches intelligent cost explanations powered by Amazon Q

9 June 2026 @ 3:00 am

AWS Cost Explorer now supports 'Analyze with Amazon Q', a new capability that delivers comprehensive cost explanations for any report you configure in Cost Explorer. With a single button click you now can receive detailed analysis from Amazon Q Developer covering your cost trends, top cost drivers, and anomalies. All analysis uses your exact filters and time-period and provides guidance to discover optimization opportunities through follow-up questions. Previously, cost analysis required manual investigation across multiple filters and data points. With 'Analyze with Amazon Q', you simply configure your Cost Explorer view and click a single button. Amazon Q analyzes your current context and delivers explanations directly in its chat panel, adapting to what you're viewing: historical explanations for past dates, forecast explanations for future dates, or both for mixed periods. You can then ask follow-up questions to explore any insights related to your cost data in greater d

AWS Compute Optimizer now supports idle recommendations for six additional resource types

8 June 2026 @ 9:00 pm

AWS Compute Optimizer now identifies idle resources for Amazon DynamoDB provisioned tables, Amazon ElastiCache (Redis and Valkey), Amazon MemoryDB, Amazon DocumentDB (provisioned and serverless), Amazon WorkSpaces, and Amazon SageMaker endpoints. This expansion enables you to detect unused resources across more of your AWS environment and identify potential cost savings. Compute Optimizer analyzes utilization metrics to determine whether a resource is idle. Customers can set this lookback period based on the nature of their workloads. For each resource type, Compute Optimizer evaluates service-specific signals such as consumed capacity, cache hits, active connections, and CPU utilization. When Compute Optimizer identifies potential idle resources, it surfaces these recommendations, along with detailed utilization metrics and estimated savings in the console, enabling you to evaluate recommendations before acting. You can also view idle resource recommendations across all AWS

Amazon MSK Express Brokers now support automatic topic creation with Kafka Streams

8 June 2026 @ 7:36 pm

Effective today, Amazon MSK Express Brokers support automatic topic creation with Kafka Streams. Customers can now deploy their Kafka Streams applications on Express Brokers without needing to manually pre-create or manage topics for stateful operations. MSK Express Brokers are designed to deliver up to three times more throughput per broker, scale up to 20 times faster, and reduce recovery time by 90 percent. Kafka Streams uses topics to store state and repartition data for stateful operations. Previously, customers running Kafka Streams with Express Brokers had to manually name and pre-create these topics before deploying their application. With this launch, these topics are created automatically when the application starts, simplifying deployment and reducing operational setup for Kafka Streams applications on Express Brokers. This capability is available today in all

Amazon DocumentDB now supports engine minor version starting with 5.0.1

8 June 2026 @ 6:59 pm

Amazon DocumentDB (with MongoDB compatibility) now supports engine minor versions, starting with 5.0.1. This release delivers enhanced aggregation capabilities with new operators ($rand, $pow, $dateToParts, $dateFromParts), the active connections metric to monitor instances, and granular command-level performance metrics in CloudWatch (find, insert, findAndModify, update, etc.). For a full list of what's included, see release notes. Minor versions provide new features and bug fixes within the same major version, giving you more control over when and how you upgrade your clusters. We recommend upgrading to the latest minor version to benefit from these performance enhancements, bug fixes, and new capabilities. You can specify minor version 5.0.1 when creating a new cluster, or manually upgrade an existing 5.0.0 cluster to 5.0.1 using the AWS Management Console or AWS CLI (via the mo

Amazon CloudWatch Logs Insights adds 23 new query commands and functions

8 June 2026 @ 5:50 pm

Amazon CloudWatch Logs Insights query language now supports 23 new commands and functions that give you new ways to query, parse, transform, and analyze your logs. Customers analyzing logs in CloudWatch Logs Insights often need to do conditional processing, string conversions, process IP addresses, parse different file formats, and execute complex stats commands. With this launch, CloudWatch Logs Insights provides new hash functions (md5, sha256), string functions (strcontains supporting case-insensitive search, split), conditional logic (if statement), and conversion functions (toNumber, toInt, toLong, toDouble). It also adds IP functions (ipv4ToNumber, isPrivateIP, isPublicIP, isReservedIP), analytics functions (rate, count_over_time, sum_over_time, offset, histogram), and parse functions (parse CSV, parse XML, parse multi, values, addtotals). Additionally, queries now support “limit any N” to fetch the first N results, and can use up to 10 stats commands. Th

AWS Savings Plans Purchase Analyzer now supports target coverage analysis

8 June 2026 @ 5:16 pm

Today, AWS announces target coverage analysis in Savings Plans Purchase Analyzer, a capability in AWS Billing and Cost Management that helps you plan your Savings Plans purchases based on your coverage target. Savings Plans Purchase Analyzer helps you evaluate different purchase scenarios by estimating the potential impact of Savings Plans purchases on cost, coverage, utilization, and savings. With target coverage analysis, you can set a specific percentage of On-Demand spend to be covered by Savings Plans. Savings Plans Purchase Analyzer uses your historical usage to recommend a new purchase amount to help you reach that target. You can further customize your analysis using parameters such as custom lookback period or excluding expiring Savings Plans, and compare cost, coverage, utilization, and savings across different coverage targets. You can view your recommendations through interactive charts or access your target coverage analysis via the Purchase Analyzer API.

PostgreSQL 19 Beta 1 is now available in Amazon RDS Database Preview Environment

8 June 2026 @ 5:03 pm

Amazon RDS for PostgreSQL 19 Beta 1 is now available in the Amazon RDS Database Preview Environment, allowing you to evaluate the pre-release of PostgreSQL 19 on Amazon RDS for PostgreSQL. You can deploy PostgreSQL 19 Beta 1 in the Amazon RDS Database Preview Environment that has the benefits of a fully managed database. PostgreSQL 19 adds native graph query support via SQL Property Graph Queries (SQL/PGQ), so you can express complex relationship traversals directly in standard SQL instead of building separate application logic or syncing data across two databases. It also introduces support for concurrent table repacking that rebuilds tables and reclaims unused storage, so production databases stay accessible during routine table maintenance. Logical replication now synchronizes sequence values to the replica automatically, eliminating manual sequence reconciliati

Amazon Aurora DSQL now supports the JSONB data type with compression

8 June 2026 @ 5:00 pm

Amazon Aurora DSQL introduces support for the PostgreSQL JSONB data type with optional compression. You can now use code and tools that depend on PostgreSQL's JSONB type with Aurora DSQL, making it easier to store semi-structured data alongside relational data. You can use the JSONB data type when creating or modifying tables to store semi-structured data such as system configuration metadata, API parameters, and event logs. With PostgreSQL compression enabled by default, larger JSONB payloads are stored more efficiently, helping reduce storage costs. Get started with Aurora DSQL for free with the AWS Free Tier. For information about Regional availability, see the AWS Region table. You can learn more about Aurora DSQL data types, including JSONB,

AWS Application Migration Service is now AWS Transform MGN

8 June 2026 @ 5:00 pm

AWS Application Migration Service (MGN) is now available as AWS Transform MGN. This name change reflects MGN's role as the proven replication engine powering AWS Transform, the agentic migration service. You can choose between two rehosting experiences. Use the AWS Transform MGN console for direct control over replication and cutover. Or use the AWS Transform agentic workflow, where an agent handles discovery, wave planning, landing zone setup, network creation, and rehosting or containerization on your behalf, accelerating your path to AWS. AWS Transform MGN retains all of its existing compliance certifications, including FedRAMP High, HIPAA, PCI DSS, ISO, and SOC 1, 2, and 3, so you can migrate with confidence. It is available in all commercial regions and both GovCloud (US) Regions. Visit the AWS Transform MGN product page and

AWS Lambda Managed Instances expands to additional AWS Regions

8 June 2026 @ 5:00 pm

AWS Lambda Managed Instances (LMI) is now available in all commercial AWS Regions, except Israel (Tel Aviv), Middle East (Bahrain), Middle East (UAE), and Asia Pacific (Auckland).   LMI lets you run Lambda functions on managed Amazon EC2 instances, giving you access to specialized compute configurations and EC2 pricing advantages while maintaining Lambda's operational simplicity. LMI fully manages instance lifecycle, OS and runtime patching, routing, load balancing, and auto-scaling, so you can focus on writing code. You can process parallel requests within each execution environment, maximizing resource utilization and improving price-performance. You can further improve costs by leveraging EC2 pricing models including Compute Savings Plans and Reserved Instances. LMI is ideal for customers requiring specialized hardware configurations, as well as those with steady-state or predictable workloads seeking to optimize costs. You can continue building functions wit

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

AI inference moving to private clouds, Broadcom says

9 June 2026 @ 2:15 pm

The majority of enterprises now either run or plan to run AI workloads in private clouds, according to a survey of 1,800 senior IT decision makers conducted by Radius Tech on behalf of Broadcom. Only 41% of enterprises are now using public clouds for inference workloads, down from 56% last year. Meanwhile, the use of private clouds for AI inference has risen slightly, from 55% to 56%. “The key takeaway this year is that we’ve seen an AI tipping point, driving towards private cloud as the preferred platform for running these workloads,” says

2026 network outage report and internet health check

9 June 2026 @ 1:33 pm

ThousandEyes, a Cisco company, monitors how ISPs, cloud providers and conferencing services are handling any performance challenges and provides Network World with a weekly roundup of events that impact service delivery. Read on to see the latest analysis, and stop back next week for another update on internet and cloud traffic performance. Note: We have archived prior-year outage updates, including our reports from 2025, 2024,

Attackers exploiting unpatched Cisco SD-WAN flaw

8 June 2026 @ 9:53 pm

Cisco warns customers of an actively exploited high-severity vulnerability in Catalyst SD-WAN Manager, an enterprise network management system that has been targeted by hackers multiple times in the past. Located in the command-line interface, the flaw allows authenticated attackers to escalate privileges to root and take over the entire system. The vulnerability, tracked as CVE-2026-20245, is rated 7.8 (high) on the CVSS scale instead of critical because it requires local access and netadmin privileges to exploit. These privileges can be obtained via stolen credentials or by exploiting authentication bypass flaws, such as CVE-2026-20245 or CVE-2026-20127, which were fixed in May and Fe

Enterprise network teams are falling behind as AI raises the stakes

8 June 2026 @ 10:00 am

Enterprise network operations teams are struggling to keep pace with the demands placed on them, and the challenge is growing as enterprises prepare their networks and observability tools for AI workloads. Roughly 31% of IT professionals surveyed for an Enterprise Management Associates (EMA) benchmarking study said their organization’s network operations strategy is completely successful, a figure that decreased from 42% two years ago. That is one of the findings of EMA’s Network Management

New data center routing design cuts AWS networking energy costs by 40%, Amazon claims

5 June 2026 @ 8:38 pm

Amazon has started deploying a completely new routing architecture in AWS data centers which it says will deliver higher throughput from fewer physical switches while slashing electricity consumption. The company claims the architecture, dubbed Resilient Network Graphs (RNG) by the AWS Networking Lab researchers who developed it, offers a more efficient alternative to the traditional ‘fat tree’ topology that dominates data centers today. According to Amazon’s

Cisco: Latest news and insights

5 June 2026 @ 6:32 pm

Cisco (Nasdaq:CSCO) is the dominant vendor in enterprise networking, and under CEO Chuck Robbins, it continues to shake things up. Cisco’s momentum is accelerating across multiple fronts, driven by demand for AI infrastructure, campus modernization, and strategic silicon investments. Here’s the latest Cisco news, research and analysis. Cisco sees quantum networking as the future of networking June 3, 2026: Einstein famously dismissed quantum phenomena such as particle entanglement, s

Network jobs watch: Hiring, skills and certification trends

5 June 2026 @ 6:06 pm

Network and infrastructure roles continue to shift as enterprises adopt technologies such as AI-driven network operations, multicloud networking, zero trust network access (ZTNA), and SD-WAN. Here’s a recap of some of the latest industry research, hiring s

How Cisco IT cut observability costs by 86% and eliminated major network outages

5 June 2026 @ 12:54 pm

When several database clusters started failing simultaneously, Cisco IT had all the data it needed to diagnose the problem. The signals were there. Engineers saw them. The issue was that those signals were landing in separate systems that did not talk to each other, and the team had no way to correlate them in real time. What followed was three hours of war-room calls across three separate bridges. Engineers were on one call, debating ownership of the problem. Application owners were on another, waiting on the database to recover. Executives were on a third, trying to explain to business partners why users could not place orders. The root cause was eventually found, but the outage had a

Microsoft makes Linux developers feel more at home in Windows with Coreutils release

4 June 2026 @ 8:18 pm

Microsoft has announced Coreutils, a new Windows 11 feature that allows developers to run many popular Linux command line utilities natively on Windows from a single binary. Revealed at this week’s Build 2026 developer conference in Seattle, Coreutils is about reducing what Microsoft terms the “cognitive load” faced by developers when moving between Windows and other platforms. Currently, accessing the Linux command line utilities that are considered essential in many CI/CD development environments on Windows requires a kludge that involves either opening an emulation such as Git Bash, or a virtualized

AMD ships second-gen Versal Prime accelerators

4 June 2026 @ 7:41 pm

AMD has added three new chips to its Versal Prime series lineup, which is designed for space-constrained applications. AMD began shipping the first production units of the Versal Prime Gen2 Series last year. Two devices have entered full production, and a third is currently sampling. These new devices are designed to provide an optimized footprint and processing subsystem compared to the earlier models. Versal is AMD’s own platform, not x86 or FPGA. The Versal Prime Series Gen 2 devices combine high-performance embedded CPUs with programmable logic, video encode/decode IP, and support for DDR5 & LPDDR5X. These devices are built with scalability in mind, and target marke

forensicswiki.org

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Computer forensic tools and techniques used by investigators

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online community of new and seasoned Linux / Unix sysadmins.

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heartinternet.co.uk

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Hosting packages for an initial web presence

13 Ways to Optimise Your Website for Speed and Performance

5 June 2026 @ 1:05 pm

A slow website can ruin the experience of a website no matter how perfectly designed it is. Google also uses site speed as a ranking factor. If your site takes... The post 13 Ways to Optimise Your Website for Speed and Performance appeared first on Heart Internet.

Sustainable Data Centres: How to Cut Carbon without Sacrificing Performance

27 May 2026 @ 12:55 pm

No matter if it is a website visit or file uploaded, all these actions run through a hall of servers that consume electricity 24/7. Data centres account for a slice... The post Sustainable Data Centres: How to Cut Carbon without Sacrificing Performance appeared first on Heart Internet.

How to Register a Domain Name in the UK

26 May 2026 @ 10:04 am

A Complete Guide for 2026 Your domain name is your address on the internet. It’s how customers find you, how your email works, and it’s often the first impression a... The post How to Register a Domain Name in the UK appeared first on Heart Internet.

What we’ve been doing to improve the reseller experience

18 May 2026 @ 10:53 am

A lot has been changing at Heart Internet, with major improvements across our platform, products, security, infrastructure and support. We’ve completed a major transition to fully independent operations, launched new... The post What we’ve been doing to improve the reseller experience appeared first on Heart Internet.

Unique Domain Extensions You Might Not Have Heard Of

15 May 2026 @ 10:30 am

The post Unique Domain Extensions You Might Not Have Heard Of appeared first on Heart Internet.

Business Email and Website Hosting

8 May 2026 @ 10:30 am

The post Business Email and Website Hosting appeared first on Heart Internet.

What Is the Future of the Internet?

1 May 2026 @ 10:30 am

The post What Is the Future of the Internet? appeared first on Heart Internet.

Copy Fail Linux Vulnerability (CVE-2026-31431)

30 April 2026 @ 2:43 pm

On 29 April 2026, security researchers at Theori (Xint Code) publicly disclosed CVE-2026-31431, known as “Copy Fail.” It is a local privilege escalation flaw in the Linux kernel’s AF_ALG cryptographic... The post Copy Fail Linux Vulnerability (CVE-2026-31431) appeared first on Heart Internet.

How to Reduce the Bounce Rate of Your WordPress Site

24 April 2026 @ 10:30 am

The post How to Reduce the Bounce Rate of Your WordPress Site appeared first on Heart Internet.

How to Check for Available Domains

31 March 2026 @ 1:48 pm

The post How to Check for Available Domains appeared first on Heart Internet.

serverfault.com

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Common Server issues – FAQs and answers from those in the know

Google Cloud OAuth 2.0 Client ID creation fails instantly when adding authorized redirect URI

8 June 2026 @ 5:47 pm

I am trying to create an OAuth 2.0 Client ID in Google Cloud for n8n (Google Sheets integration). The client ID is created successfully when no redirect URI is included, but the creation process fails instantly when I add the authorized redirect URI. This happens in a new project with Google Sheets and Drive APIs enabled, no organization restrictions, and after trying different browsers and incognito mode. The error is “Attempted action failed” with a request ID. It appears to be a Google Cloud Console issue where the OAuth client creation fails only when adding the redirect URI.

What Could Cause an InnoDB .frm and .ibd File Mismatch

8 June 2026 @ 11:55 am

On June 3rd we noticed that one of our tables was not showing up in SHOW TABLES, but a direct SELECT * FROM table_name returned data normally. When we ran FLUSH TABLES the select command stopped working. (Our interpretation is that the table handle was still open in the InnoDB buffer) Then we inspected /var/lib/mysql/<database_name>/ and found that a significant number of tables across the database were in inconsistent states: Some tables had both .frm and .ibd → worked fine Some tables had only .frm, no .ibd → visible in SHOW TABLES, failed on query Some tables had only .ibd, no .frm → not visible in SHOW TABLES, but still queryable until FLUSH TABLES What the error log tells us: The server had been r

Postfix multi-instance configuration issues

7 June 2026 @ 6:00 pm

I need help on how to correctly setup postfix for multi-instance. For few months now I have been trying to configure 2 separate domains, example: domain1.com and domain2.com. The resources I found on the internet, or Postfix website (confusing), does not help to correctly configure the multi-instances. Everything use to work fine for both domains without multi-instance configuration. Recently, I have been suspended from using Brevo relay service. I had no issues using them on single instance configuration. To start, here is the general setup: I use VPS. I have 2 public IPs from hostwinds.com. On Hostwinds server, I have haproxy setup to translate public IPs, ports: 25, 587, etc to private IPs and ports: 2525, 10587, etc. The Hostwinds server connects to my postfix server via wireguard. On my local postfix server, there is a postscreen configured to use translated ports; 2525, 10587. Example: <IP_1:2525>, <IP_1:10587> , and &

AI bots crawling servers in the last months, what is the best tool or approach to counter?

7 June 2026 @ 7:08 am

Since February 2026, I am seeing huge spikes in (Spain located) Internet accesible servers (nginx, apache, tomcat) due to AI bots crawling for content. Is there a recommended way to address this? I am using the typical reactive way of automatically throttling IPs with custom scripts, but wanted to know if there is a better way. The least proxies, software, containers I can put the best, servers already struggling due to internal AIs deployments.

PowerMTA: Yahoo/AOL TSS04 and TSS05 on Freshly Warmed IPs Since Last 2 Days – Anyone Else Seeing This?

7 June 2026 @ 2:24 am

We are using PowerMTA and have recently warmed up new IPs. During the last 2 days, Yahoo/AOL has been returning TSS04 and TSS05 temporary deferrals even on the first emails sent from these IPs. Environment: PowerMTA Port 25 delivery Proper SPF, DKIM, and rDNS configured Low sending volume during warm-up No known complaint history on the new IPs Example responses: 421 4.7.0 [TSS04] Messages temporarily deferred due to user complaints 421 4.7.0 [TSS05] Messages temporarily deferred due to unexpected volume or user complaints Questions: Has anyone else using PowerMTA noticed an increase in TSS04/TSS05 during the last 2 days? Are there any known Yahoo/AOL filtering changes currently affecting new IPs? Can a freshly warmed IP receive TSS04/TSS05 on its very first messages? Is this likely related to IP reputation, domain reputation, content, or

Debian CIS - partition or multiple EBS on EC2

5 June 2026 @ 1:52 pm

I'm currently going through each CIS checks to create an hardened Debian 13 AMI on AWS to launch EC2 instances. Rules from 1.1.2.1.1 to 1.1.2.7.4 are about configuring filesystem partitions. I don't know much about this and I'm wondering which is better : to partition 1 EBS disk or to add an EBS disk for each partition that should be separate.

How to *actually* integrate PA-VM with Secrets Manager

4 June 2026 @ 7:45 pm

I have a Palo Alto Next-Gen Firewall PA-VM instance in AWS and I'm trying to get it to fetch certs from AWS Secrets Manager. Can someone please clarify the actual procedure for getting a PA-VM to read a keypair from AWS Secrets Manager? I am trying to abide by the guidance in this document: https://docs.paloaltonetworks.com/vm-series/11-0/vm-series-deployment/set-up-the-vm-series-firewall-on-aws/integrate-kms-for-cloud-native-key-management-aws ...but I find it very poorly explained, not worded well and missing crucial details. I'll get more into that at the end. I have no idea what PA-VM expects for a key/value in a Secret in Secrets Manager, but I went on to start with just the private-key file dumped into a Secret as raw text in a Secret called "palo-a

Hairpin NAT not working on EdgeRouter [closed]

3 June 2026 @ 8:43 pm

I have an EdgeRouter ERPro-8 router with 6 static IPs assigned to the WAN interface (eth6). I need hairpin NAT but checking Hairpin NAT under Firewall/NAT does not work. Requests to a public wan IP hit the WAN side of the EdgeRouter instead of redirecting back to the server. I tried adding a DNAT rule shown at https://help.uisp.com/hc/en-us/articles/22591184776983-EdgeRouter-Hairpin-NAT and it doesn't seem to work. What am I doing wrong.

Cannot delete AD computer object due to "the requested object has a non unique identifier and cannot be retrieved"

5 May 2026 @ 8:15 am

Our Environment: Active Directory domain domain.local, Forest and Domain Functional Level 2016 8 Domain Controllers (mixed Server 2019 and 2022) replication healthy (repadmin /replsummary: 0 errors) The Problem: GUI Error Message Two computer objects were affected (both members of Server 2022 (HyperV VMs)). The servers were re-joined under new names after losing trust (rejoining over PowerShell was not possible). How it manifests over time: The AD-object becomes "frozen" at some unknown point (root cause unclear) Netlogon Event 3224 fires every 4 hours: machine account password change fails with the same internal error After several weeks the trust relationship breaks (the server can no longer authenticate against the domain) The administrator re-joins the server under a new name and the old object cannot be delete

Robocopy to a network drive in task scheduler

2 February 2026 @ 2:50 am

I'm trying to robocopy to a network drive using powershell and call that from task scheduler on Windows Server 2022. I can't get the network drive to be visible to powershell in task scheduler. The scripts I test run fine from CMD or in the Powershell ISE. This is the command: robocopy "E:\Backups\Offsite" "Y:\" /MIR /MT:64 /E This works fine, except in Task Scheduler. Using the UNC path results in "Error 161 .... The specified path is invalid" robocopy "E:\Backups\Offsite" "\\<obscured>.com.au" /MIR /MT:64 /E I tried pushd, and NET USE, but none of those are solving this problem when run using task scheduler. I checked "Run whether user is logged on or not", and "Run with highest privileges", and nothing else.

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Cheap dedicated server hosting

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