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.

aws.amazon.com

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Amazons’s cloud computing & web hosting service.

Amazon Bedrock Guardrails announces a new API targeting agentic AI workflows

16 June 2026 @ 10:53 pm

Amazon Bedrock Guardrails now offers the InvokeGuardrailChecks API, a new resourceless API that lets you apply individual safeguards at any point in your agentic AI applications without creating guardrail resources. The API provides granular, per-request control over which safeguards to run at each step of your agent loop, returning numeric severity and confidence scores so you can implement custom thresholds and actions, whether to block, pass, retry, or log based on your specific requirements. Agentic AI applications operate through iterative loops; planning tasks, calling tools, processing outputs, and iterating again while often executing dozens of steps for a single request. Each step carries a different risk profile, making a one-size-fits-all guardrail difficult to scale. The InvokeGuardrailChecks API addresses this by operating in detect-only mode with no guardrail IDs to track and no versions to manage. You sp

AWS Transform now supports model-to-model migration assessment for generative AI workloads

16 June 2026 @ 9:55 pm

AWS Transform now offers a model-to-model migration custom transformation that assesses your generative AI workloads and produces a comprehensive migration plan for moving from third-party providers to Amazon Bedrock. The AI-powered agent scans your codebase, identifies every AI SDK and model in use, gathers your migration requirements through interactive questions, and maps models to Bedrock equivalents with transparent cost comparisons and production-ready code changes. This managed custom transformation helps organizations consolidate their AI workloads on AWS to gain IAM-based security, VPC endpoint isolation, prompt caching, Amazon Bedrock Guardrails, and unified operational tooling through Amazon CloudWatch.   The transformation supports migrations from OpenAI, Google Gemini, direct Anthropic SDK usage, and open-source models via LiteLLM or Ollama. It handles direct SDK integrations, framework-wrapped patterns such as LangChain and LlamaIndex, agentic architectur

Amazon S3 Vectors now supports up to 10,000 similarity search results per query

16 June 2026 @ 9:22 pm

Amazon S3 Vectors can now return up to 10,000 similarity search results per query, a 100x increase from the previous limit. The higher result limit helps you retrieve a larger, more comprehensive set of candidates during similarity queries. This is especially valuable for applications with multi-stage retrieval pipelines that need to apply additional processing such as reranking, aggregations, or deduplication to produce a more relevant final result set. To get started with the higher limit, use the latest AWS SDK and update your application code to specify up to 10,000 relevant results (topK nearest neighbors) when making a QueryVectors API request. Query results are now returned across multiple pages, and you can start processing the first page immediately while retrieving additional pages as needed. For queries that return larger result sets, you pay a small data-returned fee based on the total size of results returned. The first 512 KB of data returned per query is

AWS Transform for mainframe now delivers a traceable reimagine workflow

16 June 2026 @ 6:29 pm

AWS Transform for mainframe now delivers a connected, traceable reimagine experience from assessment through code generation. Previously, modernizing mainframe applications required months of analysis across multiple tools for discovery, reverse engineering, and code generation with manual handoffs between phases. With this launch, enterprises running z/OS COBOL and PL/I workloads can assess their portfolio to identify the discrete business functions, extract business rules, generate development-ready requirements, and produce traceable cloud-native code in a single connected workflow. The experience starts with a portfolio assessment, where AWS Transform systematically identifies and catalogs discrete business functions. Selected business functions flow directly into the reimagine workflow, creating a connected path from portfolio analysis through code generation. For each business function, AWS Transform generates development-ready requirements with full traceability, flow

AWS Sign-in now supports resource-based policies and resource control policies

16 June 2026 @ 4:20 pm

AWS Sign-in now supports resource-based policies and resource control policies (RCPs) for the AWS Management Console. You can use these policies to restrict console sign-in to expected networks. Policies are evaluated during sign-in and whenever the console session requests new credentials. Resource-based policies apply to individual AWS accounts. Resource control policies apply organization-wide through AWS Organizations. You can combine these policies with AWS Management Console Private Access to control both which networks users can sign in from and which accounts they can access. AWS Sign-in resource-based policies and RCPs are available at no additional cost in all AWS commercial Regions. To learn more, see the AWS Sign-in User Guide. For API deta

Amazon Redshift RG instances powered by AWS Graviton now available in additional regions

16 June 2026 @ 4:10 pm

Amazon Redshift is expanding the general availability of RG instances — powered by AWS Graviton processors — to three additional AWS Regions: Africa (Cape Town), Asia Pacific (Bangkok), and Mexico (Central). Amazon Redshift's new Graviton-based RG instances deliver up to 4.2X better price-performance for data warehouse workloads compared to other data warehouses, run workloads up to 2.4x faster than previous-generation RA3 instances, and cost 30% less per vCPU. Customers in Cape Town (af-south-1), Bangkok (ap-southeast-7), and Mexico Central (mx-central-1) can provision rg.xlarge and rg.4xlarge node types — ideal for a wide range of workloads from smaller development environments to production data warehouse deployments. Customers can upgrade their existing RA3 provisioned instances to RG instances and immediately benefit from improved query perfor

AWS announces AWS Blocks, an open-source framework for composing application backends on AWS (Preview)

16 June 2026 @ 3:49 pm

Today, AWS announces the public preview of AWS Blocks, an open-source TypeScript framework for application developers who want backend capabilities on AWS removing the need to learn infrastructure tools. AWS Blocks runs a fully functional local environment with Postgres, authentication, and real-time messaging, no AWS account required. When ready to deploy, the same application code runs on production AWS services with zero changes, and developers can drop into AWS CDK at any point for direct resource configuration. A developer building a SaaS application can add database tables, user authentication, AI agents, file uploads, and background jobs in a single session, test the full stack locally, and deploy to AWS when ready. Built-in guidance for AI coding tools enables correct architecture without custom configuration, and end-to-end type safety flows from the data schema to the frontend without a code generation step. At preview, supported frontend frameworks include SPAs (e

AWS Partner Central agents now accelerate co-selling on every deal

16 June 2026 @ 1:00 pm

Starting today, AWS Partner Central agents qualify every co-sell opportunity in real time and make recommendations that drive AWS engagement and accelerate deal progression. Building on the AWS Partner Central agents released on March 16, 2026, the agent can act on the partner's behalf through conversation to enrich the opportunity details. This eliminates waiting for manual review, so partners build a stronger pipeline and progress deals faster. Now, each opportunity is matched to a co-sell motion that determines AWS engagement: AWS field-engaged, where an AWS sales team collaborates directly; Agent-engaged, where the agent strengthens the submission to increase AWS engagement; and Partner-led, where the partner drives the deal with agent support. Across all motions, the agent provides customer insights, recommendations, and sales plays, and each opportunity receives an Opportunity Quali

Amazon CloudWatch introduces native OpenTelemetry metrics with PromQL querying and per-GB pricing

16 June 2026 @ 12:44 pm

Amazon CloudWatch now natively supports OpenTelemetry metrics. You can send metrics via the OpenTelemetry Protocol (OTLP) and query them using Prometheus Query Language (PromQL), with per-GB ingestion pricing and 15 months of storage included. This allows you to consolidate custom application metrics and AWS vended metrics from more than 70 services in a single solution, queryable together in PromQL. CloudWatch exposes a Prometheus-compatible query API, so teams already using OpenTelemetry, Prometheus, or Grafana can use CloudWatch as a destination that fits seamlessly with their existing tools. Available in all commercial AWS Regions except Middle East (UAE), Middle East (Bahrain), and Israel (Tel Aviv). For pricing details, see the Amazon CloudWatch pricing page. To get started, see the Amazon CloudWatch me

AWS Marketplace announces AI-assisted product listing

16 June 2026 @ 12:30 pm

Today, AWS Marketplace announces AI-assisted product listing in Partner Assistant chat, helping Independent Software Vendors (ISVs) and Consulting Partners create high-quality product listings on AWS Marketplace using their existing digital assets. This new capability helps partners create listings optimized for discovery by buyers, while eliminating the time-consuming manual data entry and guesswork around meeting AWS Marketplace requirements. Partner Assistant automatically generates and validates product listing content by importing information from your existing digital assets, including website URLs, PDFs, case studies, and product documentation. The AI-powered assistant creates content across all required product information fields, validates it against AWS Marketplace size and format requirements, and optimizes it for search. You'll receive field-level recommendations based on AWS Marketplace best practices, with a quality score indicating where your listing stands re

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

Tether is shipping TurboQuant KV-cache quantization with Vulkan support into its QVAC SDK

17 June 2026 @ 12:27 pm

The latest release of qvac-fabric-llm.cpp, the inference engine of the QVAC Fabric LLM, features TurboQuant integration for resource management in long-running inference sessions. Tether adopts the technology as a path to better efficiency when running large language models on devices with limited compute resources. TurboQuant is Google’s response to the Key-Value (KV) Cache’s capacity expansion during routine inference, which can reach up to 8GB for a 262,000-token context session using a 4B-parameter large language model. Tether takes the stage as the first AI research team to ship the KV Cache compression algorithm to a publicly available local AI model. The T

AMD acquires MEXT to add predictive memory optimization to its AI stack

17 June 2026 @ 12:26 pm

AMD has acquired memory optimization startup MEXT, bringing predictive memory optimization software into its AI infrastructure portfolio as enterprises look for ways to manage increasingly memory-intensive AI workloads without continually expanding expensive DRAM capacity. The technology uses AI to intelligently move frequently accessed data between flash storage and DRAM, enabling organizations to increase effective memory capacity while reducing infrastructure cost and power consumption, according to AMD. “Memory has become a critical constraint across cloud and enterprise environments,”

HPE Discover: Neri outlines an AI architecture built for agents

17 June 2026 @ 9:00 am

HPE is all in on AI, according to the message coming from CEO Antonio Neri. AI agents are now running alongside end users in enterprise infrastructure, changing how workloads move across networks and what compute and storage must deliver. At HPE Discover 2026 in Las Vegas this week, Neri used the opening keynote to detail the company’s response across its full stack. Key announcements include: Networking: HPE extended AI connectivity from GPU racks to the inference edge with new QFX switches, the PTX 12,000 rou

HPE product barrage targets AI networks, agents, management

16 June 2026 @ 4:56 pm

HPE has rolled out a super-sized package of hardware and software aimed at helping enterprise customers build and manage large AI infrastructures from the data center to the edge. At its Discover event in Las Vegas this week, the vendor announced HPE Juniper Networking QFX switches aimed at inferencing and scale-up architectures. It also deepened integration of its Juniper Networking data center switching and operations into its Mist AI engine and launched a unified, AI-native SASE platform.

2026 network outage report and internet health check

16 June 2026 @ 3:25 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,

Cloud strategies have become more complicated than ever

16 June 2026 @ 2:23 pm

With years of cloud experience, IT leaders thought they finally had firm control of their cloud strategies. And then came AI. Of course, cloud issues today extend beyond artificial intelligence. Where to place cloud workloads for maximum efficiency is one. Questions about governance, sovereignty, the growing sophistication of cyberthreats, and escalating cost concerns are also conspiring to make the cloud ever more complicated. “It’s just grown into a complex mess,” observes cloud expert David Linthicum, emphasizing that cloud strategy today needs to address private cloud, multicloud, hybrid cloud, and sove

Cisco patches SD-WAN flaw amid evidence of active exploitation

16 June 2026 @ 9:51 am

Cisco has released fixes for a vulnerability in its Catalyst SD-WAN Manager software after becoming aware of limited exploitation of the flaw, which could allow an authenticated attacker to create or overwrite files that may later be used to gain root privileges. The vulnerability, tracked as CVE-2026–

IBM sends signals with its $10 billion quantum pledge

15 June 2026 @ 4:00 pm

“The quantum era is no longer ahead of us, it has started,” said IBM CEO Arvind Krishna in statement tied to news that the company is committing $10 billion to advancing quantum computing and commercializing the technology. IBM will spend the money over the course of the next five years on research and development, capital expenses, partnerships, manufacturing, and mergers and acquisitions, according to its June 2 announcement and a related filing with the SEC. “A $10

NetBox at 10: Network inventory tool now a full infrastructure intelligence platform

12 June 2026 @ 3:53 pm

NetBox was not originally designed to manage AI infrastructure. When the project was first released as an open source tool in 2016, the goal was straightforward: Give network teams a reliable record of what was on the network. The project spread well beyond that original scope. It is now embedded across more than 10,000 organizations, from enterprise networks to AI data centers running some of the most demanding infrastructure builds in the industry.  As the technology marks its 10-year anniversary, NetBox Labs is expanding the platform further

How Jeetu Patel made Cisco unrecognizable

12 June 2026 @ 3:20 pm

Cisco Live 2026 is in the books, and it was “prove it” time for a promise made 24 months ago. At Cisco Live 2024, Chief Product Officer Jeetu Patel promised that Cisco would be unrecognizable as a company—in a positive way—in two years. The innovation payload at the event suggests he has largely delivered on that pledge. Cisco is repositioning itself from a holding company of products and dashboards to a unified, AI-native infrastructure platform, with Cloud Control as the control plane, Cisco IQ as the CX brain, and Secure Networking as the glue binding it all together. The shift is not just about new

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

Group Policy for personalisation of the client PC

17 June 2026 @ 10:38 am

I need to modify the Group Policy that governs Settings > Personalisation. Is this possible? If so, where can I find it in Group Policy? Thank you.

curl download fails with "Recv failure: Connection reset by peer" when installing Wazuh on Ubuntu Server VM

17 June 2026 @ 5:10 am

I am setting up a Wazuh home lab in VMware Workstation. While downloading the Wazuh installation script on an Ubuntu Server VM, the download fails with: curl -O https://packages.wazuh.com/4.14/wazuh-install.sh Output: curl: (35) Recv failure: Connection reset by peer Environment: Ubuntu Server (version: 26.04 lts) VMware Workstation Pro Network adapter: NAT Host machine has internet access

What are the names of the various parts of a SMTP `Received:` header?

16 June 2026 @ 3:33 pm

In this SMTP Received: header: Received: from mail.dgfip.finances.gouv.fr (bdmprod002-1.dgfip.finances.gouv.fr. [145.242.11.193]) by ... (truncation mine), there are two "FQDNs" (maybe am I using a wrong appellation) for the sending server: a FQDN (bdmprod002-1.dgfip.finances.gouv.fr.) tightly associated with the sending IP address a "secondary" (not included in the parentheses) and different FQDN: mail.dgfip.finances.gouv.fr For investigation purposes, I would like to know the correct appellations of these two FQDN-like names. Some context: a relative of mines received a strange e-mail from the French government network. We fear that the potentially hacked server bdmprod002-1.dgfip.finances.gouv.fr. tries to masquerade as the legit governamental mail-sending server mail.dgfip.finances.gouv.fr, in a phish

Safe tear down to prevent Infiniband partition access leakage between VM tenants

15 June 2026 @ 5:50 pm

Device: mellanox cx6 with mlx5_core driver for the pf, and vfio-pci for the vf for passthrough to VMs Situation: I have a VM with a passed-through VF, with the VF guid added to partition A. I want to tear this down, add the VF guid to partition B and start up a new VM without leaking access to partition A to the second tenant. Ideas: Read back pkey from the VF after adding its guid to the new partition in SM (UFM): This is tricky because I don't want to unbind the VF from vfio-pci each time a new VM spins up. neither mlx5_core nor doca-ofed expose the VF pkey through sriov/ subtree in PF sysfs. Just change the GUID wholesale: this should work, but I'm worried about a race condition between the new vm starting and the SM sweep. I haven't been able to produce this race while testing, but I'm not certain it's impossible. Ideally, I'd be able to read back the vf and vport state on the host before starting a new VM. I think that would sol

http 400 error when using nginx reverse proxy

14 June 2026 @ 6:05 pm

I have set up nginx to reverse to several OLD APC webadmin http pages with no issues. when i used modern things like homeassistant things start getting stupid. i am currently getting a 400 error for home assistant with the same config i have for the apc's i am not seeing any thing obvious in the logs. though I am new to nginx so im not sure what im looking for. upstream homeassistant_app { server 10.1.2.136:8123; # Your application server } server { listen 80; server_name homeassistant.linux2themax.com; # Redirect HTTP to HTTPS return 301 https://$server_name$request_uri; } server { listen 443 ssl http2; server_name homeassistant.linux2themax.com; # SSL configuration (certificates managed separately) ssl_certificate /etc/nginx/certs/homeassistant.pem; ssl_certificate_key /etc/nginx/certs/homeassistant.key; # Security headers add_header X-Frame-Options "SAMEORIGIN" always; add_header X-Content-Type-Options "

Voip deployment using local environment - 1 vm for asterisk - 2nd vm for komailo - 3rd vm for rtpengine - 4rth vm for sipp [closed]

14 June 2026 @ 4:45 pm

I have deployed four vms. I have setuped the environment for voip. Is it ok, and can I learn the voip engineer skills locally.

SPF hardening - can I remove mx/ip6/ip4 and go DKIM-only?

14 June 2026 @ 6:28 am

I am wondering how feasible it is to send email with a DKIM-only setup, with an SPF record of v=spf1 -all. If my DMARC policy requires DKIM alignment then recipients who understand DMARC will still accept my mails. Recipients who don't do DMARC but do process SPF would reject them. Is anything known about how common such recipients are in the real world? I suppose I'd get a lot of 'SPF alignment fail' reports that I'd have to ignore. On the other hand, I'd be protected against the risk of sending email that isn't DKIM-signed for some reason. It's a shame you can't express "don't bother with SPF, only consider the DKIM result" in a DMARC policy.

Can a managed Google Workspace account work natively in an Intune-managed Android work profile, or is Google's own EMM required?

13 June 2026 @ 9:29 pm

Environment: Microsoft Intune manages Android Enterprise personally-owned work profiles. Identity/productivity is Google Workspace on a managed Google domain, federated to Microsoft Entra (OIDC SSO). Goal: users use native Google Drive/Gmail in the work profile, signed in with their Workspace account. Symptom: the Workspace account can be added to the work profile (device restriction "Add and remove accounts = Allow all account types" + domain allow-list) and sign-in completes via the Entra redirect, but it never becomes functional: Google Play services raises a recurring "Account action required" notification that taps through to Company Portal and resolves nothing; Chrome "verify that it's you" never clears; Google Drive opens but returns no files. Already ruled out: GEM set to Unmanaged for the OU; OIDC SSO assigned and working; Google 2-Step Verifi

ISPConfig error 500 after upgrade: PHP Fatal error: Uncaught InvalidArgumentException: Please make sure the folder '/path/to/app/temp' is writable

13 June 2026 @ 1:36 pm

A PHP application running on Nginx + PHP-FPM (PHP 8.3) was returning HTTP 500 errors. The logs showed a fatal error in a third-party PHP module: PHP Fatal error: Uncaught InvalidArgumentException: Please make sure the folder '/path/to/app/temp' is writable However: The directory exists Permissions are drwxrwxrwx (777) Ownership is correct (same user as PHP-FPM pool) touch works as the same user Running is_writable() via CLI PHP returns true But when accessed via PHP-FPM, is_writable() returns false. The PHP-FPM pool runs under systemd with hardening enabled.

How to run an SSH server in Docker and on the host machine on the same port?

13 June 2026 @ 10:43 am

I want to run a Git server in Docker, and have a regular SSH server on the host, with both sharing the same port. The Git server uses git@ip while the SSH server uses user@ip. Is it possible to bounce packets sent to git@ip to the Docker container, or something, such that I can connect to either server without changing the port?

poundhost.com

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Cheap dedicated server hosting

tagadab.com

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Cheap developer VPS hosting from £10