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.

AWS Transform launches an AI agent for full-stack Windows modernization

1 December 2025 @ 3:00 pm

AWS Transform is expanding its capability from the .NET modernization agent to now include the full-stack Windows modernization agent that handles both .NET applications and their associated databases. The new agent automates the transformation of .NET applications and Microsoft SQL Server databases to Amazon Aurora PostgreSQL and deploys them to containers on Amazon ECS or Amazon EC2 Linux. AWS Transform accelerates full-stack Windows modernization by 5x across application and database layers, while reducing operating costs by up to 70%. With AWS Transform, customers can accelerate their full-stack modernization journey through automated discovery, transformation, and deployment. The full-stack Windows modernization agent scans Microsoft SQL Server databases in Amazon EC2 or Amazon RDS instances, and it scans .NET application code from source repositories (GitHub, GitLab, Bitbucket, or Azure Repos) to create customized, editable modernization plans. It automatically transf

AWS Transform for mainframe now supports application reimagining

1 December 2025 @ 3:00 pm

AWS Transform for mainframe delivers new data and activity analysis capabilities to extract comprehensive insights to drive the reimagining of mainframe applications. These insights can be combined with business logic extraction to inform decomposition of legacy applications into logical business domains. Together, these form the basis of a comprehensive specification for coding agents like Kiro to reimagine applications into cloud-native architectures. The new capabilities empower organizations to reimagine legacy workloads, providing a comprehensive reverse engineering workflow that includes automated code and data structure analysis, activity analysis, technical documentation generation, business logic extraction, and intelligent code decomposition. Through in-depth data and activity analysis, AWS Transform helps identify application components with high utilization or business value, allowing teams to optimize their modernization efforts and make data-informed architect

AWS Transform expands .NET transformation capabilities and enhances developer experience

1 December 2025 @ 8:00 am

Today, AWS announces the general availability of expanded .NET transformation capabilities and an enhanced developer experience in AWS Transform. Customers can now modernize .NET Framework and .NET code to .NET 10 or .NET Standard. New transformation capabilities include UI porting of ASP.NET Web Forms to Blazor on ASP.NET Core and porting Entity Framework ORM code. The new developer experience, available with the AWS Toolkit for Visual Studio 2026 or 2022, is customizable, interactive, and iterative. It includes an editable transformation plan, estimated transformation time, real-time updates during transformation, the ability to repeat transformations with a revised plan, and next steps markdown for easy handoff to AI code companions. With these enhancements, AWS Transform provides a path to modern .NET for more project types, supports the latest releases of .NET and Visual Studio, and gives developers over

AWS Transform for mainframe delivers new testing automation capabilities

1 December 2025 @ 8:00 am

AWS Transform for mainframe now offers test planning and automation features to accelerate mainframe modernization projects. New capabilities include automated test plan generation, test data collection scripts, and test case automation scripts, alongside functional test environment tools for continuous delivery and regression testing, helping accelerate and de-risk testing and validation during mainframe modernization projects. The new capabilities address key testing challenges across the modernization lifecycle, reducing the time and effort required for mainframe modernization testing, which typically consumes over 50% of project duration. Automated test plan generation helps teams reduce upfront planning efforts and align on critical functional tests needed to mitigate risk and ensure modernization success, while test data collection scripts accelerate the error-prone, complex process of capturing mainframe data. Test automation scripts then enable scalable execution of

AWS launches AWS Transform custom to accelerate organization-wide application modernization

1 December 2025 @ 8:00 am

AWS Transform custom is now generally available, accelerating organization-specific code and application modernization at scale using agentic AI. AWS Transform is the first agentic AI service to accelerate the transformation of Windows, mainframe, VMware, and more—reducing technical debt and making your tech stack AI-ready. Technical debt accumulates when organizations maintain legacy systems and outdated code, requiring them to allocate 20-30% of their software development resources to repeatable, cross-codebase transformation tasks that must be performed manually. AWS Transform can automate repeatable transformations of version upgrades, runtime migrations, framework transitions, and language translations at scale, reducing execution time by over 80% in many cases while eliminating the need for specialized automation expertise. The custom transformation agent in AWS Transform provides both pre-built and custom solutions. It includes out-of-the-box transformations for com

AWS Transform adds new agentic AI capabilities for enterprise VMware migrations

1 December 2025 @ 8:00 am

AWS Transform adds powerful new agentic AI capabilities to automate VMware migrations to AWS. The migration agent collaborates with migration teams to understand business priorities and intelligently plan and migrate hundreds of applications spanning thousands of servers, significantly reducing manual effort, time, and complexity. The agent can now discover your on-premises environment and prioritize applications for migration using the AWS Transform discovery tool, inventory data from various third-party discovery tools, and unstructured data such as documents, notes, and business rules. It analyzes infrastructure, database, and application details, maps dependencies, and generates migration plans grouped by business and technical priorities such as ownership, department, function, subnet, and operating systems. It generates networks

Amazon Connect now provides automated performance evaluations for self-service interactions

30 November 2025 @ 6:00 pm

Amazon Connect now provides businesses with the ability to automatically evaluate the quality of self-service interactions and get aggregated insights to improve customer experience. Managers can define custom criteria to assess the quality of self-service interactions, that can be filled manually or automatically using insights from conversational analytics, and other Connect data. For example, you can automatically assess if the AI agent repeatedly fails to understand the customer, resulting in poor customer sentiment and transfer to a human agent. Managers can review these insights in aggregate and on individual contacts, alongside self-service interaction recordings and transcripts, to identify opportunities to improve AI agent performance. Manually filled evaluations of self-service interactions are available in all regions where Amazon Connect is offer

Amazon Connect introduces agentic self-service with more natural, expressive, and adaptive voice interactions

30 November 2025 @ 6:00 pm

Amazon Connect is introducing agentic self-service capabilities that enable AI agents to understand, reason, and take action across voice and messaging channels to automate routine and complex customer service tasks. Connect enables you to blend deterministic and agentic experiences, allowing you to deploy these AI agents at scale, reliably and safely. With integration with advanced speech models from Amazon Nova Sonic, voice self-service experiences now deliver more natural and adaptive interactions. Connect's self-service voice AI agents understand not only what customers say but how they say it, adapting voice responses to match customer tone and sentiment while maintaining natural conversational pace across multiple languages and accents. For example, when a customer calls about an order issue, your AI agent can greet them by name, ask clarifying questions, look up their order status, and process a refund, with voice interactions that adapt to the customer's tone and respond exp

Amazon Connect now supports creation of custom metrics for use in dashboards and APIs

30 November 2025 @ 6:00 pm

Amazon Connect now supports creation of custom metrics, enabling contact center supervisors to analyze tailored performance measurements without requiring technical skills. This feature provides a simple, no-code interface for performing mathematical operations (e.g., addition, subtraction, sum, average) on existing Connect data to build metrics that align with your organization's specific business requirements. Custom metrics are available to use in the dashboards and APIs. With custom metrics, you can track performance in ways that matter most to your business. For example, create average handle time metrics for premium versus standard customer segments, calculate total agent time on outbound calls by product line, or measure queue performance filtered by contact type such as callbacks versus incoming calls. This new feature is available in all AWS regions where Amazon Conn

Amazon Connect now supports multiple knowledge bases and integrates with your Amazon Bedrock Knowledge Bases

30 November 2025 @ 6:00 pm

Amazon Connect now allows you to bring your own Amazon Bedrock Knowledge Bases and supports multiple knowledge bases per AI agent, giving you greater flexibility in how you organize and access knowledge content for your AI agents. You can now connect your existing Bedrock Knowledge Bases directly to Amazon Connect AI agents in just a few clicks, with no additional setup or data duplication required. This allows you to leverage your current data sources and the Amazon Bedrock Knowledge Base connectors, including Adobe Experience Manager, Confluence, SharePoint, and OneDrive, giving you flexibility to use existing content repositories. With support for multiple knowledge bases per AI agent, you can configure AI agents to query multiple sources in parallel for more comprehensive responses. For example, a financial services company can easily connect separate knowledge bases for compliance documentation, product information, and internal policies, enabling AI agents to provide

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

Four things AWS needs to fix at re:Invent this week

1 December 2025 @ 8:09 pm

The mood among Amazon Web Services customers is shifting from curiosity to urgency as the company prepares to once again to “re:Invent” itself at its annual customer conference this week. After a year in which Microsoft and Google tightened their narratives around unified data, AI platforms and workflow-ready agents, AWS can no longer rely on its scale, breadth, or incremental roadmap to maintain the confidence of CIOs. Instead, say analysts, the h

AWS finally moves to simplify multicloud operations with Google

1 December 2025 @ 5:55 pm

Amazon Web Services is looking to simplify the ways in which organizations can support multicloud services across AWS and Google Cloud, finally joining a club that includes almost every other major cloud provider The two companies unveiled a preview version of a managed, private and secure, on-demand, solution for cross-cloud connectivity between their networks. The companies claim that this will enable organizations to complete enterprise-grade applications spanning environments from both companies. Amazon’s end is called “AWS Interconnect – multicloud”. Google’s side is called Google Cross-Cloud Interconnect for AWS. Google already offers

Enterprises run into roadblocks with AI implementations

1 December 2025 @ 11:00 am

Despite positive expectations of corporate AI, nearly 80% of companies say they’ve backtracked artificial intelligence initiatives due to performance issues, integration challenges, and skills gaps. New research from IT training and certification provider CompTIA reveals that the promise of AI is outpacing the reality of the experiences organizations are having with their

Spotlight: Making the most of multicloud

28 November 2025 @ 10:00 am

Download the December 2025 issue of the Enterprise Spotlight from the editors of CIO, Computerworld, CSO, InfoWorld, and Network World.

AWS adds a DNS resiliency feature to make its US East region resilient to outages

27 November 2025 @ 12:40 pm

Amazon Web Services (AWS) has introduced a new Domain Name Service (DNS) resiliency feature designed to improve reliability and reduce service disruptions in its US East region (Northern Virginia). In October, AWS’s US East region experienced widespread service disruption after a DNS failure caused the DynamoDB API to become unstable, affecting over 70 AWS services and impacting a large section of its customer base for hours, forcing the hyperscaler to eventually restore DNS manually. The full recovery of the service took even longe

El Capitan extends its supercomputer lead; top 10 lineup unchanged

26 November 2025 @ 5:15 pm

El Capitan at Lawrence Livermore National Laboratory maintained its spot as the world’s fastest supercomputer, and thanks to expansion, the 1.8-exaflop system extended its lead over the rest of the pack. El Capitan is once again followed by Frontier at No. 2 and Aurora at No. 3 on the latest TOP500 list. In fact, the 10 highest-ranked systems are unchanged from the June 2025 TOP500 list. In addition, the top three systems are all based at U.S. Department of Energy facilitie

Network jobs watch: Hiring, skills and certification trends

26 November 2025 @ 4:10 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

HP to slash up to 6,000 jobs as component costs and AI reshape operations

26 November 2025 @ 2:14 pm

HP announced plans to eliminate between 4,000 and 6,000 positions by 2028 as part of what it described as an AI-driven transformation to save $1 billion, while warning that surging memory chip costs would squeeze margins in the second half of 2026. The job cuts will affect teams focused on product development, internal operations, and customer support, CEO Enrique Lores said during the company’s earnings call Tuesday. HP expected to incur approximately $650 million in restructuring costs, with $250 million hitting fiscal 2026. “We expect this initiative will cr

Microsoft loses two senior AI infrastructure leaders as data center pressures mount

26 November 2025 @ 9:49 am

Microsoft has lost two senior data center and AI infrastructure leaders at a time when the company is racing to expand capacity for its Copilot and Azure AI services, raising questions about its ability to meet surging demand for power-intensive AI workloads. The back-to-back departures come as Microsoft is investing heavily in new data center sites, power agreements, and custom hardware to keep pace with escalating AI usage across the enterprise. The exits involve Nidhi Chappell, Microsoft’s head of AI infrastructure, and S

What is edge AI? When the cloud isn’t close enough

26 November 2025 @ 9:00 am

What is edge AI? Edge AI is a form of artificial intelligence that in part runs on local hardware rather than in a central data center or on cloud servers. It’s part of the broader paradigm of edge computing, in which devices at the network edge — handheld devices, IoT sensors, industrial machinery, and more — process information for local use instead of forwarding it on to other nodes on the network. Like all

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.

Download of the day: GIMP 3.0 is FINALLY Here!

18 March 2025 @ 3:45 am

Wow! After years of hard work and countless commits, we have finally reached a huge milestone: GIMP 3.0 is officially released! I am excited as I write this and can't wait to share some incredible new features and improvements in this release. GIMP 2.10 was released in 2018, and the first development version of GIMP 3.0 came out in 2020. GIMP 3.0 released on 16/March/2025. Let us explore how to download and install GIMP 3.0, as well as the new features in this version. Love this? sudo share_on: Twitter - Facebook -

How to list upgradeable packages on FreeBSD using pkg

16 March 2025 @ 8:25 pm

See all FreeBSD related FAQ Here is a quick list of all upgradeable packages on FreeBSD using pkg command. This is equivalent to apt list --upgradable command on my Debian or Ubuntu Linux system. Love this? sudo share_on: Twitter -

Ubuntu to Explore Rust-Based “uutils” as Potential GNU Core Utilities Replacement

16 March 2025 @ 12:17 pm

In a move that has sparked significant discussion within the Ubuntu Linux fan-base and community, Canonical, the company behind Ubuntu, has announced its intention to explore the potential replacement of GNU Core Utilities with the Rust-based "uutils" project. They plan to introduce new changes in Ubuntu Linux 25.10, eventually changing it to Ubuntu version 26.04 LTS release in 2026 as Ubuntu is testing Rust 'uutils' to overhaul its core utilities potentially. Let us find out the pros and cons and what this means for you as an Ubuntu Linux user, IT pro, or developer. Love this? sudo share_on: Twitter -

How to install KSH on FreeBSD

3 March 2025 @ 11:50 pm

See all FreeBSD related FAQ Installing KSH (KornShell) on FreeBSD can be done with either FreeBSD ports or the pkg command. The ports collection will download the KSH source code, compile it, and install it on the system. The pkg method is easier, and it will download a pre-compiled binary package. Hence, it is recommended for all users. KornShell (KSH) has a long history, and many older Unix systems and scripts rely on it. As a result, KSH remains relevant for maintaining and supporting legacy infrastructure. Large enterprises, especially those with established Unix-based systems, continue to use KSH for scripting and system administration tasks. Some industries where KS

Linux Sed Tutorial: Learn Text Editing with Syntax & Examples

3 March 2025 @ 9:47 am

See all GNU/Linux related FAQ Sed is an acronym for "stream editor." A stream refers to a source or destination for bytes. In other words, sed can read its input from standard input (stdin), apply the specified edits to the stream, and automatically output the results to standard output (stdout). Sed syntax allows an input file to be specified on the command line. However, the syntax does not directly support output file specification; this can be achieved through output redirection or editing files in place while making a backup of the original copy optionally. Sed is one of the most powerful tools on Linux and Unix-like systems. Learning it is worthwhile, so in t

How to tell if FreeBSD needs a Reboot using kernel version check

23 February 2025 @ 10:07 pm

See all FreeBSD related FAQ Keeping your FreeBSD server or workstation updated is crucial for security and stability. However, after applying updates, especially kernel updates, you might wonder, "Do I need to reboot my system?" Let's simplify this process and provide a straightforward method for determining whether a reboot is necessary using the CLI, shell script, and ansible playbook. Love this? sudo share_on: Twitter

Critical Rsync Vulnerability Requires Immediate Patching on Linux and Unix systems

15 January 2025 @ 6:04 pm

Rsync is a opensource command-line tool in Linux, macOS, *BSD and Unix-like systems that synchronizes files and directories. It is a popular tool for sending or receiving files, making backups, or setting up mirrors. It minimizes data copied by transferring only the changed parts of files, making it faster and more bandwidth-efficient than traditional copying methods provided by tools like sftp or ftp-ssl. Rsync versions 3.3.0 and below has been found with SIX serious vulnerabilities. Attackers could exploit these to leak your data, corrupt your files, or even take over your system. There is a heap-based buffer overflow with a CVSS score of 9.8 that needs to be addressed on both the client and server sides of rsync package. Apart from that info leak via uninitialized stack contents defeats ASLR protection and rsync server can make client write files outside of destination directory using symbolic links. Love this? sudo share_on:

How to control the SSH multiplexing with the control commands

15 January 2025 @ 8:29 am

See all GNU/Linux related FAQ Multiplexing will boost your SSH connectivity or speed by reusing existing TCP connections to a remote host. This is useful when you frequently connect to the same server using SSH protocol for remote login, server management, using IT automation tools over SSH or even running hourly backups. However, sometimes your SSH command (client) will not respond or get hung up on the session when using multiplexing. Typically, this happens when your public IP changes (IPv4 to IPv6 changes when using DNS names), VPN issues, or firewall cuts connections. Hence, knowing SSH client control commands can save you time and boost your productivity when such gotc

ZFS Raidz Expansion Finally, Here in version 2.3.0

14 January 2025 @ 9:19 am

After years of development and testing, the ZFS raidz expansion is finally here and has been released as part of version 2.3.0. ZFS is a popular file system for Linux and FreeBSD. RAIDz is like RAID 5, which you find with hardware or Linux software raid devices. It protects your data by spreading it across multiple hard disks along with parity information. A raidz device can have single, double, or triple parity to sustain one, two, or three hard disk failures, respectively, without losing any data. Hence, expanding or adding a new HDD is a very handy feature for sysadmins in today's data-sensitive apps. Love this? sudo share_on: Twitter -

How to run Docker inside Incus containers

18 December 2024 @ 5:44 am

See all FFmpeg command releated tutorials Incus and Docker both use Linux kernel features to containerize your applications. Incus is best suited when you need system-level containers that act like traditional VMs and provide a persistent developer experience. On the other hand, Docker containers are ephemeral, i.e., temporary in nature. All files created inside Docker containers are lost when your Docker container is stopped or removed unless you stored them using volumes in different directories outside Docker. Docker is created as a disposable app deployment system. Incus containers are not typically created as disposables, and data is kept inside

heartinternet.co.uk

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Hosting packages for an initial web presence

How to Enable Two-Factor Authentication

29 July 2025 @ 12:22 pm

Keeping your account secure is a top priority – and enabling two-factor authentication (2FA) is one of the easiest and most effective ways to protect it. Enabling 2FA adds an extra step to your login process so your account will remain secure even if your password is compromised. Here’s how to switch it on in [read more...]

How to Choose the Perfect Domain Name for Your Business

9 July 2025 @ 9:30 am

Get Your Name Right – The Internet Never Forgets Choosing a domain name might sound simple – until you realise it’s the online equivalent of naming your child. No pressure. Your domain is your digital first impression. It’s what people type, share, and (hopefully) remember. So picking the right one is crucial for your brand, [read more...]

What is a VPS? And is it Time You Got One?

25 June 2025 @ 9:30 am

Discover what a VPS server is, how VPS hosting works, and why it’s ideal for small businesses. Learn the benefits and explore VPS plans with Heart Internet.

We’re Now Certified by the Green Web Foundation

11 June 2025 @ 9:30 am

💚 Hosting that works hard, treads lightly.   Big news: Heart Internet is now officially listed with the Green Web Foundation. That means our hosting services are recognised as being powered by 100% renewable energy – wind, solar, and hydro, all thanks to our partnership with EDF. So while your website might be generating traffic, [read more...]

What is Web Hosting and Why Does Your Business Need It?

6 May 2025 @ 4:54 pm

Without web hosting, your website would not be visible or accessible to users! It is crucial to host your website with a website hosting service to ensure that your business has an online presence. Web hosts will securely store your website’s files, images, and digital content on a server, making it accessible to the public [read more...]

How to Enable Root Access via SSH on Your VPS for Migration using Plesk

11 March 2025 @ 7:41 am

If you get one of the following messages from the Plesk migrator you should check that you are using root as the username along with the Plesk admin password. “The source server does not appear to be a Plesk server” “Plesk Migrator tool requires original ‘root’ user access or root user with GUI/UID = 0.” [read more...]

How to Enable Root Access on Your VPS Server Using Plesk

11 March 2025 @ 7:40 am

If you get one of the following messages from the Plesk migrator you should check that you are using root as the username along with the Plesk admin password. “The source server does not appear to be a Plesk server” “Plesk Migrator tool requires original ‘root’ user access or root user with GUI/UID = 0.” [read more...]

Are your website fonts sending the right message?

3 February 2025 @ 10:18 am

Did you know that the fonts you use on your website can impact the way your customers perceive and interact with your brand?

Black Friday at Heart Internet

28 November 2024 @ 3:27 pm

Black Friday is here, and we’re bringing you incredible savings to help your business thrive online. From 29th November 2024 to 9th December 2024, you can enjoy 15% off some of our most popular products to get the tools you need at a fraction of the cost. What’s on Offer? Here’s what you can save [read more...]

13 Easy Ways to Optimise Your Website for Speed and Performance

1 October 2024 @ 2:53 pm

A slow website is like a slow waiter: it doesn’t matter how good the food is if the service is frustratingly sluggish. If your site takes too long to load, visitors are likely to abandon it faster than you can say “bounce rate.” But fear not! Here are some tips to help you optimise your [read more...]

serverfault.com

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

Cache key for auth_request in case of mTLS

1 December 2025 @ 9:24 pm

I'm using auth_request to use an external process to authenticate the client certificate in a mTLS with. The code is something similar to this: http { # ... http configuration ... server { listen 443 ssl; ssl_certificate /etc/nginx/server.crt; ssl_certificate_key /etc/nginx/server.key; ssl_verify_client optional_no_ca; location /protected/ { auth_request /auth; proxy_pass http://backend_service; } location = /auth { internal; proxy_pass http://auth_service/verify; proxy_set_header X-Client-Cert $ssl_client_escaped_cert; proxy_pass_request_body off; proxy_set_header Content-Length ""; proxy_hide_header Set-Cookie; proxy_ignore_headers Set-Cookie; proxy_set_header Cookie ""; } } } To improve performance on the authentica

Explanation of Apache 2.4 Require Directives Ordering?

1 December 2025 @ 7:51 pm

This is for Apache 2.4.58. Why is it that the following order of Location/LocationMatch will only evaluate the latter, but if it is reversed that it will evaluate both as intended? <Location /basic/website/> Require external-group third-party-require-clause-allowing-for-anonymous-access </Location> <LocationMatch "^/basic/website/(?<user>[-_\.\w\d]+)/?" > Require user %{env:MATCH_USER} </LocationMatch> For reference, I am using mod_auth_external 3.3.3 for the third-party require clause. The intention of the above configuration is to grant anonymous access (when appropriate) otherwise grant access according to criteria finally to ensure that a specifi

Protected Users Group - Gotchas?

1 December 2025 @ 8:22 am

We're going through and hardening our AD security, and one of the recommendations is the usage of the Protected Users Group for privileged accounts. Which accounts should we place in this group (domain admins, local privileged accounts, etc) and what are the gotchas for those who have done this already? Thank you!

Visual Studio Community Edition in Service Provider License Agreement environments [duplicate]

1 December 2025 @ 6:40 am

We are an MSP and provide an IAAS platform for our customers and also provide the licenses for everything Microsoft related via Service Provider License Agreement (SPLA). Our FinOps tool discovered Visual Studio Community Edition on several servers, and is proposing Visual Studio Professional licenses for it. My first guess would be that the tool is incorrect so I wanted to exclude these community editions as it is used for DEV/TEST purposes. But according to SAMExpert everything hosted in SPLA should be licensed as a production workload even if it is for DEV or Test. (https://samexpert.com/visual-studio-msdn-non-production-hosting-in-spla-audit/) Is this correct? (our customers will be happy that th

pihole dhcp server in docker container without proxy application [migrated]

30 November 2025 @ 10:22 pm

I am running pi-hole instance in a docker compose setup and want it to also act as my dhcp server. In addition to pi-hole, I added to the compose file a container for pi-hole prometheus metrics exporter and a dnscrypt-proxy. I have following docker bridge networks running: proxy for traefik access, observability for the grafana stack. To get dhcp working, I see currently two options use a dhcp proxy - which currently I do but want to get rid of set the network_mode of pi-hole to host - loosing the benefits of traefik auto detection - which I do not like either. Isn't there a better way to to get access to broadcast packets in docker containers? That would also help to isolate my home automation container stack. Similar issue there ...

Deltadisks on an ESXi 6.0, but no snapshot on Proxmox migrated Windows 11 VMs

30 November 2025 @ 4:23 pm

I'm facing a strange behavior on a Windows 11 VM originally created on Proxmox 8, and then migrated to VMWare ESXi 6.0 (the product detects for example VMWare 6.5, and doesn't work if the version of that hipervisor is newer than 6.0.0). It needed to be migrated because there is a strange software that runs on top of that VM that uses a licensing model that goes deep into the hardware layer, and no CPU emulation of Proxmox works, not even "host"...it only works with VMWare but only old versions, not new ones. Even that, we originally installed the OS on Proxmox, and let the 3rd party provider install the product (it's a hard process, with a lot of steps to have it working) there, just to check if there was a way to make it work on Proxmox. But no, then the VMs were migrated to a fresh installed VMWare ESXi 6.0. The migration process involved running qemu-img convert to move from qcow2 to vmdk. The VM is a UEFI based one. The strange behavior is that eve

Docker container loses network connectivity to the host via the host-gateway

30 November 2025 @ 4:22 pm

Current Setup: A host-run HTTP application is fronted by an NGINX reverse proxy running in a Docker container. Network Configuration: The NGINX container uses a bridge network. It was started with --add-host=docker.host.internal:host-gateway and ports 80 and 443 published to all interfaces (0.0.0.0). Request Flow: A request arrives on the host on port 80 or 443. It is routed to the NGINX container. NGINX proxy_pass forwards the request to docker.host.internal:<port>. This resolves to the host's gateway (typically 172.17.0.1), where the host application is listening. When load reaches ~800 RPS, connections from the NGINX container to the upstream host (172.17.0.1) become unstable. 50% of requests fail with a error: 2025/11/28

How to attach/rotate Vultr Reserved IPs without reboot when BGP/BIRD is unavailable on Ubuntu 23.04/25.x?

30 November 2025 @ 8:08 am

I'm trying to rotate Vultr Reserved IPs on a single VPN server without rebooting the instance. A normal "Attach Reserved IP" operation on Vultr requires a full server restart, which disconnects all VPN clients. Vultr’s documentation suggests using BGP + a dummy interface to announce the /32 without restarting: https://docs.vultr.com/how-to-set-up-high-availability-using-vultr-reserved-ip-and-bgp The dummy interface configuration works: ip link add dev ha-ip type dummy ip link set ha-ip up ip addr add dev ha-ip <RESERVED-IP>/32 The problem is that BGP cannot be used because bird2 is not available for Ubuntu 23.04 (Lunar) or 25.x. These releases no longer provide a Release file: E: The repository 'http://archive.ubuntu.com/ubuntu lunar Release' no longer has a Rel

AD authentication traffic control

30 November 2025 @ 8:01 am

I have several DCs in my domain, and I have several branches in our organization. I want to specify each DC server to serve a specific branch so I can distribute the traffic on all DC servers. I tried to do that using DNS policy but I could not apply it on a DC level. I can only apply it on A or CNAME host DNS. Is any one try to do that give me a hint

Access IPv4 sites through IPv6 only server [migrated]

30 November 2025 @ 2:22 am

I have a VPS hosting Wireguard that only has IPv6 addresses. When I connect from my local machine, I can access google.com in Chrome, which prefers IPv6, but not in Firefox, which prefers IPv4. Sites that only use IPv4 like Reddit and GitHub are impossible to connect to. I added: nameserver 2a00:1098:2c::1 to /etc/resolvconf/resolv.conf.d/head. The "server" can make https connections to GitHub with git clone, but ping github.com fails and the client could not connections to github and Reddit fail.

poundhost.com

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Cheap dedicated server hosting

tagadab.com

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Cheap developer VPS hosting from £10