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 simplifies Client VPN onboarding with Quickstart setup

7 January 2026 @ 8:44 pm

Today, AWS announces a simplified onboarding experience for AWS Client VPN, introducing a new Quickstart setup method that streamlines the process of creating and configuring Client VPN endpoints. AWS Client VPN allows you to securely connect remote users to AWS resources and on-premises networks. The new Quickstart setup, reduces the number of steps required to set up an Client VPN endpoint. You can now easily set up Client VPN endpoints with pre-defined default configurations, requiring only three key inputs: IPv4 CIDR, server certificate ARN, and subnet selection. For example, development teams in large organizations who use Client VPN for remote access to their VPC resources for quick testing can now create endpoints quickly with the new simplified setup process. The Quickstart method is available alongside the existing Standard Setup option, giving you the flexibility to choose the approach that best fits your deployment needs. Additionally, when you create a

Amazon EC2 I7ie instances now available in additional AWS regions

7 January 2026 @ 5:00 pm

AWS is announcing starting today, Amazon EC2 I7ie instances are now available in AWS Asia Pacific (Mumbai), Canada West (Calgary) and Europe (Paris) regions. Designed for large storage I/O intensive workloads, I7ie instances are powered by 5th Gen Intel Xeon Processors with an all-core turbo frequency of 3.2 GHz, offering up to 40% better compute performance and 20% better price performance over existing I3en instances. I7ie instances offer up to 120TB local NVMe storage density for storage optimized instances and offer up to twice as many vCPUs and memory compared to prior generation instances. Powered by 3rd generation AWS Nitro SSDs, I7ie instances deliver up to 65% better real-time storage performance, up to 50% lower storage I/O latency, and 65% lower storage I/O latency variability compared to I3en instances. I7ie are high density storage optimized instances, ideal for workloads requiring fast local storage with high random read/write performance at very low latency c

Announcing Apache Airflow 2.11 Support in Amazon Managed Workflows for Apache Airflow

7 January 2026 @ 5:00 pm

You can now create Apache Airflow version 2.11 environments on Amazon Managed Workflows for Apache Airflow (MWAA). Apache Airflow 2.11 introduces several changes to help you prepare for upgrading to Apache Airflow 3.  Amazon MWAA is a managed orchestration service for Apache Airflow that makes it easier to set up and operate end-to-end data pipelines in the cloud. Apache Airflow 2.11 introduces several notable enhancements, such as new trigger-based scheduling for delta intervals, consistent reporting of metrics in milliseconds and other changes that will make it easy to migrate to Apache Airflow 3. In addition, MWAA now provides support for Python 3.12 that you can leverage in your workflows. You can launch a new Apache Airflow 2.11 environment on Amazon MWAA with just a few clicks in the AWS Management Console in all currently supported 

Amazon EC2 C8i and C8i-flex instances are now available in additional AWS regions

7 January 2026 @ 3:00 pm

Starting today, Amazon Elastic Compute Cloud (Amazon EC2) C8i and C8i-flex instances are available in the Asia Pacific (Mumbai), Asia Pacific (Seoul), and Asia Pacific (Tokyo) regions. These instances are powered by custom Intel Xeon 6 processors, available only on AWS, delivering the highest performance and fastest memory bandwidth among comparable Intel processors in the cloud. These C8i and C8i-flex instances offer up to 15% better price-performance, and 2.5x more memory bandwidth compared to previous generation Intel-based instances. They deliver up to 20% higher performance than C7i and C7i-flex instances, with even higher gains for specific workloads. The C8i and C8i-flex are up to 60% faster for NGINX web applications, up to 40% faster for AI deep learning recommendation models, and 35% faster for Memcached stores compared to C7i and C7i-flex. C8i-flex are the easiest way to get price performance benefits for a majority of compute intensive workloads like web and app

Amazon ECS now supports tmpfs mounts on AWS Fargate and ECS Managed Instances

6 January 2026 @ 6:00 pm

Amazon Elastic Container Service (Amazon ECS) now supports tmpfs mounts for Linux tasks running on AWS Fargate and Amazon ECS Managed Instances, extending beyond the EC2 launch type. With tmpfs, you can now create memory‑backed file systems for your containerized workloads without writing this data to task storage. tmpfs mounts provide a temporary file system that is backed by memory and exposed inside the container at a path you choose. This is ideal for performance‑sensitive workloads that need fast access to scratch files, caches, or temporary working sets, and for security‑sensitive data such as short‑lived secrets or credentials, because the data does not persist after the task stops. tmpfs also lets you keep the container root file system read‑only using the readonlyRootFilesystem setting while still allowing applications to write to specific in‑memory directories. To get started, update yo

AWS Marketplace Seller Reporting now provides collections visibility

6 January 2026 @ 6:00 pm

Today, AWS announces collection visibility in AWS Marketplace Seller Reporting, which adds up-to-date payment collection status to the Billed Revenue Dashboard and Billing Event Data Feed. This enhancement enables sellers to distinguish between invoiced, collected, and disbursed amounts, eliminating the visibility gap between invoice creation and disbursement. With this feature, sellers can make informed business decisions and reduce unnecessary follow-ups with customers about payment status. Collection visibility particularly benefits sellers using monthly disbursement who previously waited up to 30 days to understand payment collection status. All AWS Marketplace sellers can now improve payment forecasting accuracy and detect collection issues earlier. This enhanced visibility streamlines seller operations and improves customer relationships by providing clarity on payment status. Collection visibility is available in all AWS Regions where AWS Seller Rep

Amazon MQ now supports HTTP based authentication for RabbitMQ brokers

6 January 2026 @ 5:35 pm

Amazon MQ now supports the ability for RabbitMQ brokers to perform authentication (determining who can log in) and authorization (determining what permissions they have) by making requests to an HTTP server. This plugin can be configured on brokers running RabbitMQ 4.2 and above on Amazon MQ by making changes to the associated configuration file. To start using HTTP based authentication and authorization on Amazon MQ, simply select RabbitMQ 4.2 when creating a new broker using the m7g instance type through the AWS Management console, AWS CLI, or AWS SDKs, and then edit the associated configuration file. To learn more about the plugin, see the Amazon MQ release notes and the Amazon MQ developer guide. This plugin is available in all

AWS Config now supports 21 new resource types

6 January 2026 @ 3:00 pm

AWS Config now supports 21 additional AWS resource types across key services including Amazon EC2, Amazon SageMaker, and Amazon S3 Tables. This expansion provides greater coverage over your AWS environment, enabling you to more effectively discover, assess, audit, and remediate an even broader range of resources. With this launch, if you have enabled recording for all resource types, then AWS Config will automatically track these new additions. The newly supported resource types are also available in Config rules and Config aggregators. You can now use AWS Config to monitor the following newly supported resource types in all AWS Regions where the supported resources are available: Resource Types: AWS::AppStream::AppBlockBuilder AWS::IoT::ThingGroup AWS

Amazon EC2 G5 instances are now available in Asia Pacific (Hong Kong) Region

5 January 2026 @ 6:55 pm

Starting today, the Amazon Elastic Compute Cloud (Amazon EC2) G5 instances powered by NVIDIA A10G Tensor Core GPUs are now available in the Asia Pacific (Hong Kong) region. G5 instances can be used for a wide range of graphics intensive and machine learning use cases. Customers can use G5 instances for graphics-intensive applications such as remote workstations, video rendering, and cloud gaming to produce high fidelity graphics in real time. Machine learning customers can use G5 instances for high performance and cost-efficient training and inference for natural language processing, computer vision, and recommender engine use cases. G5 instances feature up to 8 NVIDIA A10G Tensor Core GPUs and 2nd generation AMD EPYC processors. They also support up to 192 vCPUs, up to 100 Gbps of network bandwidth, and up to 7.6 TB of local NVMe SSD storage. With eight G5 instance sizes that offer access to single or multiple GPUs, customers have the flexibility to pick the right instance

AWS Resource Explorer is now available in AWS Asia Pacific (New Zealand) Region.

5 January 2026 @ 3:15 pm

Today, AWS Resource Explorer has expanded the availability of resource search and discovery to the Asia Pacific (New Zealand) Region. With AWS Resource Explorer you can search for and discover your AWS resources across AWS Regions and accounts in your organization, either using the AWS Resource Explorer console, the AWS Command Line Interface (AWS CLI), the AWS SDKs, or the unified search bar from wherever you are in the AWS Management Console. For more information about the Regions where AWS Resource Explorer is available, see the AWS Region table. To turn on AWS Resource Explorer, visit the AWS Resource Explorer console. Read about getting started in our AWS Resource Explorer documentatio

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

Holes in Veeam Backup suite allow remote code execution, creation of malicious backup config files

8 January 2026 @ 1:50 am

Veeam says that four vulnerabilities could allow a person with certain oversight roles for its flagship Backup & Replication suite to do serious damage to – but not destroy –  a backup database. The company has already issued a patch for the bugs, which, it says, should be applied immediately. The worst of the vulnerabilities, CVE-2025-59470, carries a criticality score of 9 and would allow a threat actor “to do something nefarious,” said Rick Vanover, Veeam’s vice-president of produ

Lenovo unveils purpose-built AI inferencing servers

7 January 2026 @ 4:51 pm

Lenovo Group Ltd. has introduced a range of new enterprise-level servers designed specifically for AI inference tasks. The servers are part of Lenovo’s Hybrid AI Advantage lineup, a family of inferencing devices. Nvidia has captured the training space, where large language models (LLMs) are generated, but the inferencing space, where the LLMs are put to work doing things like answering questions and making decisions, is wide open with no clear leader. But it is growing fast.

AWS stealthily raises GPU prices by 15 percent

7 January 2026 @ 2:04 pm

Amazon Web Services (AWS) raised the prices of its GPU instances for machine learning by around 15 percent this weekend, without warning, reports The Register. The price increase applies in particular to EC2 Capacity Blocks for ML, where, for example, the cost of the p5e.48xlarge instance rose from $ 34.61 to $ 39.80 per hour. AWS had previously announced that their prices would be updated in January, but did not indicate in which direction. In the past, the company has almost always lowered prices or changed pricing models rather than raising them directly.

Samsung warns of memory shortages driving industry-wide price surge in 2026

7 January 2026 @ 12:25 pm

Samsung Electronics warned that memory chip shortages will drive price increases across the electronics industry in 2026, with the world’s largest memory manufacturer acknowledging that even its vast production capacity cannot insulate its own products from the surge, a signal that enterprise IT buyers face unavoidable cost increases regardless of vendor choice. Wonjin Lee, president and head of global marketing at Samsung, told Bloomberg in an interview that the company expects memory chip shortag

Lenovo-Nvidia partnership targets faster AI infrastructure rollouts

7 January 2026 @ 10:30 am

Lenovo is pitching a faster path to enterprise AI infrastructure, pairing its liquid-cooled systems and networking with Nvidia platforms to deliver what it calls “AI cloud gigafactories” designed to reduce deployment timelines from months to weeks. The announcement, made at CES in Las Vegas, reflects growing pressure on enterprises to build AI infrastructure faster than traditional data center build cycles allow, even as networking, power, and cooling constraints continue to slow deployments. In a statement, Lenovo said the program focuses on sp

Ethernet groups keep 2026 focus on higher bandwidth, AI demands

7 January 2026 @ 9:00 am

2025 marked a year of progress for Ethernet with multiple standards and specifications reaching completion as the networking industry works to keep pace with AI and HPC demands. Among the leading efforts for Ethernet in 2025 was the Ultra Ethernet Consortium, an open-source effort under the governance of the Linux Foundation that aims to enhance Ethernet to better compete and surpass the capabilities of Infiniband. The Ultra Ethernet Consortium (UEC) released its

2026 network outage report and internet health check

6 January 2026 @ 7:29 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,

2025 global network outage report and internet health check

6 January 2026 @ 5:15 pm

Editor’s note: This is an archive of 2025 incidents as tracked by Cisco ThousandEyes. For current trends, see the 2026 outage report and internet health check, which is updated weekly. We’ve also archived our coverage from 2024, 2023 and 

The top AMD stories of 2025

6 January 2026 @ 4:35 pm

2025 was a pivotal year for AMD, with product launches, market moves, and security warnings among the highlights. Additions to AMD’s product portfolio were featured in our two most-read articles. The Pensando Pollara AI NIC captured reader interest as it’s the first NIC that complies with the Ultra Ethernet Consortium’s 1.0 specification. AMD’s Ultra Ethernet-ready network card is designed for massive environments with thousands of AI processors. Targeting a very different part of the AI spectrum are AMD’s Ryzen Threadripper CPUs, which are designed for high-end AI desktops and represent a challenge to Intel’s dominance in workstations. Partnerships also made wave

At CES, Nvidia launches Vera Rubin platform for AI data centers

6 January 2026 @ 4:15 pm

Nvidia used the Consumer Electronics Show (CES) as the backdrop for an enterprise-scale announcement: It launched the Vera Rubin NVL72 server rack platform for AI data centers, featuring new concepts and technology like “context memory” storage, zero downtime maintenance, rack-scale confidential computing, and several other advancements. As with previous naming conventions, the Vera Rubin platform is named after a notable scientist, in this case, astronomer Vera Rubin, who proved the theory of dark matter. Vera is the codena

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 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.... The post How to Choose the Perfect Domain Name for Your Business appeared first on Heart Internet.

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. The post What is a VPS? And is it Time You Got One? appeared first on 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... The post We’re Now Certified by the Green Web Foundation appeared first on Heart Internet.

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... The post What is Web Hosting and Why Does Your Business Need It? appeared first on Heart Internet.

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... The post How to Enable Root Access via SSH on Your VPS for Migration using Plesk appeared first on Heart Internet.

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... The post How to Enable Root Access on Your VPS Server Using Plesk appeared first on Heart Internet.

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? The post Are your website fonts sending the right message? appeared first on Heart Internet.

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... The post Black Friday at Heart Internet appeared first on Heart Internet.

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,... The post 13 Easy Ways to Optimise Your Website for Speed and Performance appeared first on Heart Internet.

Black Friday and Cyber Monday sale now on at Heart Internet

22 November 2022 @ 3:31 pm

You can now get up to 33% off the price of a cPanel-managed Web Hosting plan at Heart Internet. The post Black Friday and Cyber Monday sale now on at Heart Internet appeared first on Heart Internet.

serverfault.com

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

Rack server grounding: connecting the yellow-green earth wire via a 3-pin plug

7 January 2026 @ 12:18 pm

I have a question regarding the connection of the yellow-green earth wire of a server rack. The current setup is as follows: All metallic devices in the rack are connected to each other via a yellow-green wire, which converges at a common grounding point (Point A inside the rack). From Point A, a yellow-green wire extends that must be connected to earth. Inside the rack, there is an UPS, which is connected to an external wall outlet near the rack. Nearby the rack, there is a PC connected to a power strip C1, which in turn is connected to the UPS inside the rack. Switch and router installed in the rack are powered via a rack-mounted power strip C2. The external wall outlet has two sockets: one dedicated to the UPS and the other to a power strip C3, which powers a printer. All power strips (C1, C2, C3) and the wall outlet have properly connected grounding.

DHCP command with RegEdit setting

7 January 2026 @ 10:08 am

Is there a setting or command that can make the client computer release its IP address at assignment time, such as a configuration option or a registry setting?

Can I set a maximum hit rate when using Claude, Gemini, Qwen, Llama, and Mistral via Google Cloud Compute?

7 January 2026 @ 9:15 am

Can I set a maximum hit rate (e.g. max token per minute or max requests per minute) when using Claude, Gemini, Qwen, Llama, and Mistral via Google Cloud Compute? I want to reduce the risk of overspending in a given time window. E.g., on Azure, one set a max number of tokens per minute for a given Cognitive Services Resource (aka instance): IMG:

How Can I Access My WebServer's Public-Facing [External] Website from My Company's Internal LAN? [closed]

7 January 2026 @ 4:46 am

Problem Internal users cannot access my website MyWebDomain.com, but external users can. Desired Solution Give internal users access to my website. Network Limitations No NAT on Gateway/Router No Configurable DNS Settings on Gateway (ie, I can't set the router's DNS Address) I've disabled navigation to my Public IP (ie, https://Z.Z.Z.Z:80 will not work) – due to my SSLs. Needed Method Using an Internal DNS Server I can't rely on the drivers\etc\hosts\ file, because: (i) some of my LAN clients can't utilize it; and (ii) it is a suboptimal method for me (too many client devices; moderate frequency of network changes) Current Setup Public DNS (via Registrar) {@.MyWebDomain.com → Z.Z.Z.Z} Port-Forwarding (via personal gateway) {Port 80 �

Existence of safemaidia servers [closed]

6 January 2026 @ 5:35 pm

I wonder whether there are any implemented, with different, configurations, and applications, "purgemaidia" servers. With a purgemaidia server, or servers, the computer connects to the server or servers via an automatically configured chip on the mainboard, the server downloads the entire computer contents, the computer filters the contents, in some cases even making replacements, or, optimally... transformations. The computer, evaluates, that the resulting, software, composition, is safe for the user. Then the server reinstalls all the software on the computer. Then, the user, can log on (and, can feel that they will never face a day where, in the computer, they will be unsafe). Hello, I wonder whether any such systems with safemaidia/purgemaidia, servers, if you may call them (with, preconfigured, mainboard, chips) exist ... (and if not why not)? Thanks. NOTE: There is a software called rsync edici doesn't do what I want, on Linu

ceph orch device ls declares a freshly-zapped NVMe drive "not available"

6 January 2026 @ 2:59 pm

I'm preparing a 4-way Ceph cluster. All four nodes are equipped with one 7.5 TB NVMe SSD each. On all nodes, the respective SSD is listed as "available" by ceph-volume inventory, but according to sudo ceph orch device ls, I can't use the SSD as mass storage. This is what I get (irrelevant output omitted): mixtile@blade3n1:~$ sudo ceph orch device ls --refresh HOST PATH TYPE DEVICE ID SIZE AVAILABLE REFRESHED REJECT REASONS blade3n1 /dev/nvme0n1 ssd Lexar_SSD_NM790_8TB_QDB384R000565P220J 7630G No 25m ago Has a FileSystem, Insufficient space (<10 extents) on vgs, LVM detected blade3n2 /dev/nvme0n1 ssd Lexar_SSD_NM790_8TB_QCS704R000132P220J 7630G No 3w ago Has a FileSystem, Insufficient space (<10 extents) on vgs, LVM detected blade3n3 /dev/nvme0n1 ssd Lexar_SSD

Domain still remains in browser's preload list after it has been removed from hstspreload.org

6 January 2026 @ 7:47 am

I submitted my domain for HSTS preload (with include_domains on) back in a few months. After that, I realised that some old websites in the subdomains were not fully supported in HTTPS. I later submitted a request to remove the preloaded domain from hstspreload.org and my domain finally got removed in a few weeks: Status: xxx.com was previously submitted to the preload list, but has been removed. I updated my Chrome browser to the latest version and enter chrome://net-internals/#hsts and found that my domain is still in the preload list. Any step that I have missed?

Linux policy routing VLAN -> OpenVPN tun0 not working

27 December 2025 @ 5:55 pm

OS: Ubuntu 20.04 OpenVPN client (tun0): 10.8.0.0/24 LAN: eth0 -> ISP local (must stay default) VLAN20: vlan20 -> 192.168.80.0/24 (gateway 192.168.80.1) Goal: Only traffic from 192.168.80.0/24 must go through OpenVPN (tun0). eth0 must continue using local ISP. my local network Current state: VLAN20 is reachable locally tun0 is up and reachable net.ipv4.ip_forward = 1 policy routing breaks connectivity from VLAN20 Routing policy database: # ip rule 0: from all lookup local 100: from 192.168.80.0/24 lookup vlan20vpn 32766: from all lookup main 32767: from all lookup default Routing tables: #ip route default via 192.168.0.1 dev eth0 proto dhcp src 192.168.0.50 metric 100 10.8.0.0/24 dev tun0 proto kernel scope link src 10.8.0.10 1

Docker TLS verification works on one server, fails on another identical server with "certificate signed by unknown authority": An Unexplained Mystery

29 November 2025 @ 7:17 am

I'm facing a truly bizarre Docker TLS issue that has exhausted all standard debugging methods. I have two Rocky 9 systems, and a Docker pull operation with a self-signed registry works on one but fails on the other, despite the systems being identical in every conceivable way. The Phenomenon: System A (Old): Placing a self-signed CA certificate at /etc/docker/certs.d/my-registry.com/ca.crt allows docker pull my-registry.com/image:tag to succeed. System B (New): Using the exact same certificate file, permissions, and directory structure results in a failure: x509: certificate signed by unknown authority. My Exhaustive Debugging Process: I have systematically verified that the two systems are identical across all known dimensions. Here is the checklist of what I've confirmed to be exactly the same

Winrm cannot complete the operation from one server to another, but can connect to others

13 October 2025 @ 9:28 am

Not a duplicate of https://stackoverflow.com/questions/39917027/winrm-cannot-complete-the-operation-verify-that-the-specified-computer-name-is Also, I posted question in StackOverflow here: but it was closed. I also found this link and tried its solution, but it did not work, though I was hopeful: Remote PowerShell, WinRM Failures: WinRM cannot complete the operation I receive the error "WinRM cannot complete the operation" when domain controller Server1 connects to domain controller Server2. Server1 connects to other servers and the sister of Server2, which

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