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 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.

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

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 now provides AI-powered cost investigations for cost anomalies

8 June 2026 @ 4:41 pm

AWS Cost Anomaly Detection now includes AI-powered cost investigation, which uses Amazon Q to analyze the root cause of detected cost anomalies. Investigating a cost change typically requires correlating cost data with AWS CloudTrail events and resource activity, which can take hours. Cost investigation delivers a plain-language explanation in minutes, helping FinOps practitioners and engineering teams move from alert to action faster. When you investigate an anomaly, Amazon Q determines whether the cost change is usage-driven or rate-driven, identifies the contributing services, accounts, and regions, and for usage-driven changes, correlates with AWS CloudTrail to attribute the change to specific API calls and IAM principals. For organizations with a CloudTrail organization trail, the investigation works across all member accounts automatically. You can continue the conversation with follow

Amazon Redshift reduces manual snapshot cost for Serverless and RG instances

8 June 2026 @ 3:00 pm

Amazon Redshift announces a new billing model for manual snapshots on Amazon Redshift Serverless and Amazon Redshift RG instances. With this enhancement, Amazon Redshift now meters manual snapshot storage based on the unique data blocks stored across your snapshots rather than the total size of each individual snapshot. This results in lower manual snapshot costs for customers who maintain multiple snapshots. Customers who maintain multiple manual snapshots for disaster recovery, testing, or long-term retention will see reduced storage costs. With this new billing model, you can take more frequent manual snapshots to achieve a better recovery point objective (RPO) without proportional cost increases, enabling more robust disaster recovery strategies. The new billing model automatically applies to both ex

Amazon RDS for SQL Server migration cost assessment capabilities now available in AWS Transform

8 June 2026 @ 7:00 am

Amazon RDS for SQL Server now offers TCO assessment in AWS Transform, so you can estimate costs when migrating on-premises SQL Server databases to RDS for SQL Server. Using AI-powered agents, AWS Transform analyzes your on-premises SQL Server environment and provides optimal database instance recommendations that meet your workload requirements and reduce cost. With AI-powered what-if analysis, you can evaluate different options, compare costs, and choose the best option for your migration. RDS for SQL Server assessment within AWS Transform supports both Bring Your Own Media (BYOM), which allows you to use your existing SQL Server licenses, and License Included (LI) options. The assessments include cost optimization using Database Savings Plans, which offer up to 20% savings compared to On-Demand pricing, and eligibility for the AWS Migration Acceleration Program (MAP), which provides credits and support to offset migration costs. You can start your assessment with a

Amazon Bedrock AgentCore Runtime introduces interactive shells for terminal access into agent sessions

5 June 2026 @ 10:25 pm

Amazon Bedrock AgentCore Runtime now supports interactive shells through a new InvokeAgentRuntimeCommandShell API, opening a persistent, PTY-backed terminal directly into a running agent session over WebSocket. This complements the existing InvokeAgentRuntimeCommand API for one-shot execution, giving developers a full terminal experience inside an isolated microVM with colors, tab completion, Ctrl+C, terminal resize, and automatic reconnect on network drop. This is particularly important for developers hosting coding agents such as Claude Code, OpenAI Codex, Amazon Kiro on AgentCore Runtime. In addition to the asynchronous command execution they already had, they can now authenticate, drop into the microVM hosting their coding agent, and interact with it like a local terminal: interact with the agent, inspect files, run ad-hoc commands, or debug the environment state. The shell carries persistent state across commands within the same session, so environment variables, worki

Simplified permissions for Amazon S3 Tables and Iceberg materialized views are now available in AWS GovCloud (US) Regions

5 June 2026 @ 9:11 pm

AWS Glue Data Catalog now supports AWS IAM-based authorization for Amazon S3 Tables and Apache Iceberg materialized views. With IAM-based authorization, you can define all necessary permissions across storage, catalog, and query engines in a single IAM policy. This capability simplifies the integration of S3 Tables or materialized views with any AWS Analytics service, including Amazon Athena, Amazon EMR, Amazon Redshift, and AWS Glue. You can also opt in to AWS Lake Formation at any time to manage fine-grained access controls using the AWS Management Console, AWS CLI, API, and AWS CloudFormation. This feature is now available in AWS GovCloud (US-East) and AWS GovCloud (US-West) Regions. To learn more, visit the S3 Tables documentation and the AWS Glue Data Catalog documentation

Amazon OpenSearch UI is now available in GovCloud regions

5 June 2026 @ 8:40 pm

Amazon OpenSearch Service expands its modernized operational analytics experience to GovCloud regions, including AWS GovCloud (US-East) and AWS GovCloud (US-West), enabling users to gain insights across data spanning managed domains and serverless collections from a single endpoint. The expansion includes Workspaces to enhance collaboration and productivity, allowing teams to create dedicated spaces. Discover is revamped to provide a unified log exploration experience supporting languages such as Piped-Processing-Language (PPL) and SQL, in addition to DQL and Lucene. Discover now features a data selector to support multiple sources, new visual design and query autocomplete for improved usability. This experience ensures users can access the latest UI enhancements, regardless of version of underlying managed cluster or collection. The expanded OpenSearch analytics helps users gain insights from their operational data by providing purpose-built features for observability, sec

Amazon ECS with AWS Fargate now supports 32vCPU compute configurations

5 June 2026 @ 3:00 pm

Amazon Elastic Container Service (Amazon ECS) with AWS Fargate now supports 32vCPU compute configurations, enabling customers to run more demanding applications with greater flexibility and performance. AWS Fargate offers 32vCPU tasks with the following memory configurations: 60 GiB, 120 GiB, or 244 GiB, for both x86-based and ARM-based workloads on Linux. These new task sizes extend Amazon ECS’s capability to support high-performance computing use-cases, large-scale data processing, AI inference, and other compute-intensive workloads. With 32vCPUs and up to 244 GiB of memory, Amazon ECS customers can now deploy larger containers and scale applications beyond previous limits, all while leveraging the reliability, security, and scalability of AWS Fargate. To use the new 32vCPU task sizes, simply configure your task definitions to specify 32 as the vCPU value and select one of the new memory options (60, 120, or 244 GiB), then deploy your Amazon ECS services or tasks as usu

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

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

CompTIA debuts AutoOps+ certification

4 June 2026 @ 1:39 pm

CompTIA has launched AutoOps+, a new certification and training program that the organization says will validate the automation, scripting, infrastructure management, and DevOps skills required in today’s IT operations environments. The vendor-neutral certification is targeted at IT professionals responsible for automating workflows,

Cisco sees quantum networking as the future of networking

3 June 2026 @ 8:29 pm

Particle entanglement, superposition and teleportation are key concepts in quantum physics. Einstein famously dismissed such phenomena as “spooky action at a distance.” Quantum computing is the nascent field of technology bringing that spookiness to life, but it is quantum networking that will actually enable quantum computing to be useful by connecting multiple systems together. According to Cisco, quantum networking’s practical utility isn’t limited to quantum computing, and it can have a material impact on the regular networks we use today. In a deep-dive session at Cisco Live, Ramana Kompella, head of Cisco Resea

forensicswiki.org

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Computer forensic tools and techniques used by investigators

cyberciti.biz

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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.

poundhost.com

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Cheap dedicated server hosting

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