explainshell.com

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

stackshare.io

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

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Amazons’s cloud computing & web hosting service.

AWS IoT Device Management adds MQTT session data to connectivity status API

3 June 2026 @ 9:15 pm

AWS IoT Device Management adds MQTT session data to connectivity status API, enabling you to troubleshoot connectivity issues and audit connection patterns across your Internet of things (IoT) device fleet. This launch brings AWS IoT Device Management's existing connectivity status API to full parity with AWS IoT Core's recently launched GetConnection API, enabling you to retrieve detailed connection and MQTT session information for the IoT device by its thing name. In addition to the connection status, timestamp, and disconnect reason already available, you now get visibility into MQTT session timeout and session expiry values, along with optional socket level details such as source and destination IP addresses, ports, a

Amazon SageMaker Data Agent now supports conversation history

3 June 2026 @ 8:26 pm

Amazon SageMaker Data Agent, available in SageMaker Unified Studio now supports conversation history, enabling data practitioners to maintain continuity across analytical sessions. Data analysts and data scientists can now seamlessly reference previous agent-generated code, resume multi-step analyses, and review past troubleshooting interactions within their notebooks and Query Editor workflows. With conversation history, you can pick up exactly where you left off by accessing a scrollable list of past conversations through the clock icon in the chat panel header. Each conversation includes auto-generated titles and timestamps for easy identification. Whether you're resuming complex multi-step analyses, reusing agent-generated code, or continuing troubleshooting from earlier notebook runs, conversation history keeps the context preserved. Data teams save time, eliminate rework, and move faster across concurrent projects, staying focused on insights rather than rebuilding con

Amazon SageMaker Unified Studio now supports notebook scheduling

3 June 2026 @ 8:13 pm

Amazon SageMaker Unified Studio now enables you to schedule, parameterize, and orchestrate notebook runs directly from the notebook interface without managing external orchestration infrastructure. This makes it easier for customers to take notebooks from experimentation to production, automating recurring workloads such as daily reports, data quality checks, and model retraining. You can trigger on-demand background runs on dedicated compute without interrupting interactive sessions and create scheduled or recurring runs. With notebook parameterization, you can reuse a single notebook across different inputs, for example, generating shipping performance reports for multiple carriers, by defining parameters and overriding their values per schedule or on-demand run. You can also orchestrate multi-notebook workflows using the Notebook Operator in the Workflows tool, chaining notebooks so that outputs from one run feed as inputs to the next. When a scheduled or background run f

AWS Step Functions adds AgentCore-powered agentic reasoning step

3 June 2026 @ 8:00 pm

AWS Step Functions now enables you to add AI agent reasoning steps to your workflow through an optimized integration with the managed harness (currently in preview) in Amazon Bedrock AgentCore. AWS Step Functions is a visual workflow service that orchestrates AWS services with built-in error handling, parallel execution, and human approval steps. The AgentCore harness lets you declare an agent through configuration where you specify the model, tools, and behavior. AgentCore provides the managed environment that runs the agent loop end-to-end.   With this integration, you can automate reasoning tasks in your workflow such as classifying a document or extracting elements from an unstructured form. You can run multiple agents in parallel or in sequence at different decision points in a single workflow and add human approval b

OpenAI GPT-5.4 generally available on Amazon Bedrock in AWS GovCloud (US-West)

3 June 2026 @ 7:58 pm

Amazon Bedrock now supports GPT‑5.4 from OpenAI in AWS GovCloud (US-West) — giving government and regulated industry customers access to OpenAI's most capable frontier model for professional work, backed by the enterprise-grade security and goverment compliance scope of AWS GovCloud (US).  GPT‑5.4 supports native computer-use capabilities, and deep reasoning across coding, documents, and multi-step agentic tasks — all running on Bedrock's high-performance inference engine with isolated queues and durable state for fault-tolerant workloads. Your data stays in-partition and is never used to train models. For Regional availability of  GPT-5.4 see the AWS Regions page. Read the launch blog to learn more, for documentation and a

AWS Compute Optimizer now supports 32-day lookback for EBS volume and ECS service rightsizing recommendations

3 June 2026 @ 6:30 pm

AWS Compute Optimizer now lets you extend the lookback period of your Amazon EBS volume and Amazon ECS rightsizing recommendations from the default 14 days to 32 days, at no additional cost. A longer lookback period allows Compute Optimizer to account for monthly utilization patterns, such as month-end processing, when generating rightsizing recommendations. This can help you make better optimization decisions for your workload, leading to better cost and performance outcomes. AWS Compute Optimizer supports 32-day lookback periods for five types of recommendations: EC2 instance, EC2 Auto Scaling group, RDS database, EBS volume, and ECS service. You can set the lookback period at the organization, account, or resource level through the console, AWS SDK, or AWS CLI. This feature is available in all AWS Regions where AWS Compute Optimizer is available, except the AWS GovCloud (US) Regions and the China Regions. To learn more, see the AWS Compute Optimizer

ARC Region switch adds Amazon Aurora scaling and Amazon Neptune global database failover

3 June 2026 @ 5:44 pm

Amazon Application Recovery Controller (ARC) Region switch helps customers orchestrate the failover of their multi-Region applications to achieve a bounded recovery time in the event of a Regional impairment. Today, we are announcing three new execution blocks — the Amazon Aurora serverless scaling execution block, the Amazon Aurora provisioned scaling execution block, and the Amazon Neptune global database failover execution block — which automate database scaling and failover for multi-Region workloads. Customers running Amazon Aurora global database in active-passive configurations typically maintain a scaled-down secondary cluster to minimize cost. During failover, they must manually right-size and scale the secondary cluster to handle production traffic before routing requests — adding critical minutes to recovery time. The new Amazon Aurora serverless and Amazon Aurora provisioned scaling execution blocks automate right-sizing and scaling the secondary cluster a

Amazon Keyspaces (for Apache Cassandra) now provides CDC iterator position

3 June 2026 @ 4:00 pm

Amazon Keyspaces (for Apache Cassandra) now returns an iterator position in the GetRecords response for change data capture (CDC) streams, indicating whether a consumer has reached the tip of the stream or whether additional records may be available. Amazon Keyspaces is a scalable, serverless, and managed Apache Cassandra-compatible database service that lets customers run Cassandra workloads on AWS without managing infrastructure. CDC streams capture row-level changes to Keyspaces tables so customers can integrate with downstream analytics, replication, and event-driven applications. Previously, customers polled CDC streams at a fixed cadence regardless of whether new records were available, leading to inefficient resource usage and unnecessary CDC consumption costs. With iterator position, customers can now adapt polling frequency based on whether the iterator is at the tip of the stream or has records pending, lowering CDC consumption costs while maintaining timely data p

Amazon SageMaker Unified Studio now supports a localized experience in twelve languages

3 June 2026 @ 3:26 pm

Amazon SageMaker Unified Studio enhanced its global accessibility by introducing support for twelve languages across the user interface. Supported languages include English (American), Chinese (Simplified and Traditional), French, German, Indonesian, Italian, Japanese, Korean, Portuguese (Brazilian), Spanish, and Turkish. With this launch, data engineers, analysts, and data scientists across global teams can navigate, build, and collaborate in the language they are most comfortable with, reducing friction and improving productivity. Your preferred language is automatically detected based on your browser’s default language settings. You can also set your preferred language by choosing ‘Language selector’ in your profile settings and selecting the language. The selected language applies across the entire SageMaker Unified Studio user interface. This feature is available in all AWS Regions where Amazon SageMaker Unified Studio is available, in both AWS IAM Ident

AWS Config now supports 9 new resource types

3 June 2026 @ 3:00 pm

AWS Config now supports 9 additional AWS resource types across key services including Amazon Bedrock, Amazon Bedrock AgentCore, and Amazon SageMaker. 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 resources are available: Resource Types: AWS::Bedrock::FlowAlias AWS::BedrockAgentCore::Evaluator AWS::BedrockAgentCore::GatewayTarget AWS::BedrockAg

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

Cisco sees quantum networking as the future of networking

3 June 2026 @ 8:29 pm

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

Enterprise Spotlight: Rethinking cloud strategy in the age of AI

3 June 2026 @ 4:18 pm

Cloud computing has reached a crossroads. The high cost and data sensitivity of AI workloads are raising the appeal of private clouds, even as neoclouds and sovereign clouds shake up the cloud provider landscape. New cyberthreats, shifting compute requirements, and management complexity are adding to cloud complications. Download the June 2026 issue of the Enterprise Spotlight from the editors of CIO, Computerworld, CSO, InfoWorld, and Network World, and learn how to navigate the latest cloud strategy developments.

What is Cisco Cloud Control and why should customers care?

3 June 2026 @ 4:14 pm

As is typical of Cisco, the company made several product announcements at its flagship event, Cisco Live. The most significant product announcement is Cisco Cloud Control, which recognizes that customers do not run separate Cisco products; they run one sprawling, interconnected environment that must be monitored, secured, and increasingly operated with AI at machine speed. That is what Cisco Cloud Control is supposed to be: a single management plane with one login, one view, and one operational model spanning networking, security, compute, observability, and collaboration. Cisco is positioning it as the founda

Will Broadcom’s VMware strategy keep paying big dividends?

3 June 2026 @ 3:26 pm

Four years ago, when Broadcom announced plans to buy VMware, analysts recommended that enterprises start looking for an exit strategy based on Broadcom’s less-than-stellar track record with prior acquisitions. The fear was that Broadcom would raise prices, reduce support, and stop investing in the technology. Some of those concerns have come to pass. Broadcom eliminated perpetual licenses, forced customers onto a more costly subscription model, p

Netskope introduces AI Command Center to monitor and secure enterprise AI sprawl

2 June 2026 @ 7:56 pm

Netskope this week launched AI Command Center, a new offering in its Netskope One secure access service edge (SASE) platform that gives enterprises a centralized way to discover, assess, and respond to risks associated with AI applications, models, and autonomous agents. AI Command Center provides visibility into both approved and unsanctioned AI services across an organization, helping security teams identi

Cisco Live: The network is back, and AI rewrote the rules

2 June 2026 @ 4:52 pm

For much of the past decade, enterprise networking was something the industry tried to abstract away. Cloud-first architectures commoditized switching and routing, burying them under software-defined layers. AI infrastructure has reversed that trajectory. Tom Gillis, senior vice president and general manager of Cisco’s infrastructure and security group, has a theory about why, and it starts with the network. At Cisco Live this week, Cisco is announcing a broad set of security and infrastructure capabilit

2026 network outage report and internet health check

2 June 2026 @ 1:25 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,

Cisco brings agentic ops platform and security overhaul to Cisco Live

2 June 2026 @ 1:07 pm

Cisco built the networking infrastructure that underpins the internet and the cloud. At Cisco Live this week, the company is making its case to hold that same position as enterprises shift from AI chatbots to autonomous agents. Where chatbots answer questions, agents take actions: They execute tasks, call tools, make changes, and operate continuously at machine speed. That changes the requirements for networking, security, and observability, and it is the frame for a series of announcements. Among the key announcements from the Las Vegas event are:

Attackers exploit Palo Alto GlobalProtect flaw days after disclosure

2 June 2026 @ 11:23 am

A Palo Alto Networks vulnerability that allows attackers to establish unauthorized VPN access into corporate networks is being actively exploited in the wild, weeks after the company disclosed the flaw as a medium-severity issue and said it was unaware of any attacks. However, according to Rapid7, threat actors began exploiting the bug within days of disclosure. “Rapid7 MDR identified successful exploitation across numerous customers, however we did not observe any indication of successful lateral movement from the devices,” the firm said in its 

FTC broadens Microsoft probe to cloud, AI, and software bundling

2 June 2026 @ 3:10 am

Microsoft continues to face scrutiny over its alleged antitrust practices, with new details coming to light about what, exactly, the federal government is investigating about the tech giant. According to new information revealed by The Verge, the US Federal Trade Commission (FTC) is gathering information about Microsoft’s business agreements, licensing arrangements, and the interoperability of its various products. It has also been looking into Microsoft’s bundling practices, particularly around AI, security, and software, including Windows an

forensicswiki.org

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Computer forensic tools and techniques used by investigators

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online community of new and seasoned Linux / Unix sysadmins.

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heartinternet.co.uk

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Hosting packages for an initial web presence

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.

SSL Certificates are changing. Here’s what you need to know.

17 March 2026 @ 10:12 am

The rules around SSL certificates are changing across the whole internet. The good news is that for most customers, very little will change on your side. This is an industry-wide... The post SSL Certificates are changing. Here’s what you need to know. appeared first on Heart Internet.

serverfault.com

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

Hairpin NAT not working on EdgeRouter [closed]

3 June 2026 @ 8:43 pm

I have an EdgeRouter ERPro-8 router with 6 static IPs assigned to the WAN interface (eth6). My cPanel server requires hairpin NAT for Let's Encrypt service. Checking Hairpin NAT under Firewall/NAT does not work. DNS lookups from the cPanel server to its own public IP hits the WAN side of the router instead of redirecting back to the server. I tried adding a DNAT rule shown at https://help.uisp.com/hc/en-us/articles/22591184776983-EdgeRouter-Hairpin-NAT and it doesn't seem to work.

Can access my router's static IP from cellular data, but not from outside wifi [closed]

3 June 2026 @ 10:26 am

I have a router with a public static IP address. When I'm outside my network and use my phone's cellular data, I can access the router public static IP (for remote management/services). However, when I connect my laptop to any Wi-Fi network and try to access the same public static IP, it doesn't work. Internet connectivity on the laptop works normally. Could this be related to NAT Loopback / Hairpin NAT not supported by the router? Firewall settings? DNS resolution issues? Something else? Has anyone experienced this before? What should I check to diagnose the problem?

How can a mobile client access NVRs at multiple sites through a single WireGuard connection?

3 June 2026 @ 10:02 am

Problem My current approach is WireGuard VPN access to each UniFi Cloud Gateway. However, mobile operating systems generally allow only one WireGuard tunnel to be active at a time. Switching between multiple VPN profiles manually is not practical for daily use, and it prevents simultaneous access to NVRs at different sites. I am aware that UniFi's cloud-based remote access could simplify this, but I would prefer not to use the UI.com cloud connection. The solution should remain self-managed where possible. At the same time, I am not looking for a highly complex enterprise design. A relatively simple and maintainable solution would be preferred. Question What is the recommended architecture for this scenario? Specifically: How do you provide mobile access to NVRs located behind multiple independent sites? Do you aggregate the sites into a central VPN hub, use site-to-site tunnels, or use another approach? What solution allows a

Windows client doesn't use server-side content search when searching index share on Windows Server

2 June 2026 @ 6:36 pm

A Windows server has the Indexing service active, and is indexing some folder (and subfolders) that are exposed as a file share. You can use File Explorer to search for content in the shared folders on the server and it works as expected: it returns results even when the search terms are not in the file metadata. Windows clients (e.g. Windows 11) map to the file share. User enters same content search in File Explorer, with Seach options > File Contents not selected. The expected result is that the search will use the server-side index, but it doesn't work. Why not?

What are practical performance expectations for hybrid storage arrays? [closed]

2 June 2026 @ 5:47 pm

We're looking into some hybrid storage arrays. Specifically the IBM FlashSystem 5045, the Dell PowerVault ME5 series, and the HPE MSA 2062. All I find online so far is max IOPS in the hundreds of thousands or millions if its IBM but nothing on a more practical day to day basis. I understand it varies by workloads quite extensively but does anyone have any of these appliances or more real world numbers that they could share? Any practical information would be greatly appreciated. Our current appliance is an old Tegile T4100 for comparison with a variety of VMs on some old VMWare esxi setups.

What puppet code would install nginx from nginx.org (latest version)

1 June 2026 @ 2:43 pm

To install the latest (stable) version of nginx, the nginx.org website recommends to download th signature key and add an entry to apt/sources.list.d. How can I automate the apt configuration, using puppet?

Can a Microsoft Teams / Microsoft 365 app be submitted for review while SOC 2 and GDPR certifications are still in progress?

1 June 2026 @ 7:06 am

We are preparing a Microsoft Teams / Microsoft 365 application for Partner Center review and marketplace submission. The application accesses Microsoft 365 organizational data (Teams messages, Outlook data, and related activity signals) through Microsoft Graph after tenant admin consent. Our SOC 2 and GDPR compliance efforts are currently in progress, but the certifications have not yet been completed and we do not want to incorrectly represent them as completed. In the submission process, if asked whether these certifications are completed, we would answer "No" and provide supporting documentation such as: Privacy Policy Terms of Use Security Architecture Documentation Data Handling / Retention Policies Permission Justification Documentation Admin Consent Flow Documentation Our question is: Can an app in this category proceed with Microsoft review while SOC 2 and GDPR certifications are still in progress, or are completed certific

What folder permission is similar to 755? [closed]

1 June 2026 @ 2:11 am

What folder permission is similar to 755? First of all, for over last 8 months I tried for a getting a solution via my hosting company's Advanced Tech Support, and also by searching Google and its AI, but did not received an actual solution. I am on a shared hosting server with only limited access to the Web Host manager (WHM). Therefore, I cannot make any server changes under my WHM. I do have a control panel for my account. The Problem: Currently I have about 200 password protected customers directories under the following website directory where my customers can retrieve their reports and photographs: https://example.com/customers, and I am currently adding more periodically. However, when my customers or I try to access these directories, we get a 500 Internal Server Error. My tech support told me that the folder containing the passwor

ceph-objectstore-tool update-mon-db leads to Mount failed with '(2) No such file or directory'

31 May 2026 @ 5:47 pm

I'm trying to attach a set of OSDs remaining from an old Ceph cluster (which died after a failed system update) into a new one. After creating the new cluster (with the same FSID as the former one), copying the necessary config files and keychains, and symlinking the LVM device to the OSD folder: mixtile@blade3n1:~$ sudo ln -s /dev/ceph-81bc1761-e8f6-446c-96f3-eb1b8f92628b/osd-block-9f7fd40d-0698-40b9-8718-62942b03e263 /var/lib/ceph/osd/osd-2 …I tried to issue this command to recreate the monitor map from the OSD hanging on host #1: mixtile@blade3n1:~$ sudo ceph-objectstore-tool --data-path /var/lib/ceph/osd --no-mon-config --op update-mon-db --mon-store-path /tmp/mon-store Mount failed with '(2) No such file or directory' Which file or directory is missing here? Both paths exist and have ceph:ceph as owner, and the LVM device has also been detected: mixtile@blade3n1:~$ sudo ceph-volume lvm

NFSv4: How to ensure group write permissions on new files and directories with a squashed group?

31 May 2026 @ 2:21 pm

I am running a Debian server using NFSv4 (only v4). The only expected clients are on Linux as well. I am primarilly accessing the fileserver by mounting it in fstab and using a file explorer. My exports file contains entries like this: /data/jellyfin client-hostname(rw,all_squash,anonuid=130,anongid=1002,no_subtree_check,sync) Where uid 130 is user nfs and gid 1002 is group hdd-data. The idea, then, is that the user doesn't matter, what matters is that multiple services belonging to the group hdd-data can all access and modify the files. I can upload movies to jellyfin via nfs, jellyfin can put metadata into those folders, and then I can even browse and move those files with a third, browser-based client. All of the services use system users that rely on having read+write permissions from hdd-data. This is the idea for more than just jellyfin. However, when copy over or create a new fi

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Cheap dedicated server hosting

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