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.

Amazon EC2 G6 instances now available in AWS European Sovereign Cloud (Germany)

7 May 2026 @ 9:07 pm

Starting today, the Amazon Elastic Compute Cloud (Amazon EC2) G6 instances powered by NVIDIA L4 GPUs are available in AWS European Sovereign Cloud (Germany). G6 instances can be used for a wide range of graphics-intensive and machine learning (ML) use cases. Customers can use G6 instances for deploying ML models for natural language processing, language translation, video and image analysis, speech recognition, and personalization. G6 instances are also well-suited for graphics workloads, such as creating and rendering real-time, cinematic-quality graphics and game streaming. G6 instances feature up to 8 NVIDIA L4 Tensor Core GPUs with 24 GB of memory per GPU and third generation AMD EPYC processors. They also support up to 192 vCPUs, up to 100 Gbps of network bandwidth, and up to 7.52 TB of local NVMe SSD storage. In addition to AWS European Sovereign Cloud (Germany), Amazon EC2 G6 instances are available today in the AWS US East (N. Virginia and Ohio), US West (O

Amazon EC2 X8i instances are now available in additional regions

7 May 2026 @ 8:45 pm

Starting today, Amazon Elastic Compute Cloud (Amazon EC2) X8i instances are available in the Europe (Ireland) and Asia Pacific (Mumbai) regions. These instances are powered by custom Intel Xeon 6 processors available only on AWS. X8i instances are SAP-certified and deliver the highest performance and fastest memory bandwidth among comparable Intel processors in the cloud. They deliver up to 43% higher performance, 1.5x more memory capacity (up to 6TB), and 3.3x more memory bandwidth compared to previous generation X2i instances. X8i instances are designed for memory-intensive workloads like SAP HANA, large databases, data analytics, and Electronic Design Automation (EDA). Compared to X2i instances, X8i instances offer up to 50% higher SAPS performance, up to 47% faster PostgreSQL performance, 88% faster Memcached performance, and 46% faster AI inference performance. X8i instances come in 14 sizes, from large to 96xlarge, including two bare metal options. To get sta

Amazon SageMaker Unified Studio adds identity and user management features

7 May 2026 @ 7:00 pm

Amazon SageMaker Unified Studio announces new administration features that give administrators more control over identity configuration and user management for both IAM and Identity Center domain types. In SageMaker IAM domains, administrators can now onboard users through single sign-on by configuring AWS IAM Identity Center. After configuration, administrators can add IAM roles, IAM users, IAM Identity Center users, and IAM Identity Center groups as project members. Teams can collaborate on project data and resources regardless of how individual members authenticate. Administrators can set up IAM Identity Center integration in the SageMaker Unified Studio admin portal. A new domain user management page for SageMaker IAM domains gives administrators a consolidated view of all users active in the domain, where they can manage access and update permissions from a single screen. In SageMaker Identity Center domains, users can now access the SageMaker Unified Studio p

Amazon EC2 G7e instances now available in Europe (London) region

7 May 2026 @ 6:04 pm

Starting today, Amazon EC2 G7e instances accelerated by NVIDIA RTX PRO 6000 Blackwell Server Edition GPUs are now available in Europe (London) region. G7e instances offer up to 2.3x inference performance compared to G6e. Customers can use G7e instances to deploy large language models (LLMs), agentic AI models, multimodal generative AI models, and physical AI models. G7e instances offer the highest performance for spatial computing workloads as well as workloads that require both graphics and AI processing capabilities. G7e instances feature up to 8 NVIDIA RTX PRO 6000 Blackwell Server Edition GPUs, with 96 GB of memory per GPU, and 5th Generation Intel Xeon processors. They support up to 192 virtual CPUs (vCPUs) and up to 1600 Gbps of networking bandwidth. G7e instances support NVIDIA GPUDirect Peer to Peer (P2P) that boosts performance for multi-GPU workloads. Multi-GPU G7e instances also support NVIDIA GPUDirect Remote Direct Memory Access (RDMA) with EFA in EC2 UltraClust

AWS Capabilities by Region now supports availability notifications

7 May 2026 @ 5:48 pm

Today, AWS announces availability notifications for AWS Capabilities by Region in AWS Builder Center, a new subscription-based system that automatically alerts builders when an AWS service(s) and/or features(s) become available in their target Regions. Availability notifications make it easy for builders to track availability of 1,500+ services and features across 37 AWS Regions, accelerating infrastructure planning and deployment decisions. With availability notifications, builders can subscribe at the service level through AWS Builder Center UI, and the subscription automatically covers all underlying features across selected Regions, so there's no need to track each feature individually. Notifications are delivered through two channels: instantaneous in-app alerts within AWS Builder Center, and a consolidated weekly email digest. Subscriptions

AWS Elemental MediaTailor launches Monetization Functions

7 May 2026 @ 5:20 pm

AWS Elemental MediaTailor now supports monetization functions, a new capability that lets customers customize how MediaTailor builds ad decision server (ADS) requests and manages session data during ad-personalized playback. With monetization functions, customers can call external APIs and run inline data transformations at defined points in the playback session — eliminating the need to build and operate middleware between the player and the ADS. Common use cases include resolving hashed email addresses into privacy-compliant identity envelopes through providers such as LiveRamp, appending contextual metadata from a content management system to every ad request through providers like GraceNote, activate header bidding workflows through providers like The Trade Desk and running A/B tests across multiple ad decision servers. Monetization functions are fail-open by design

AWS Advanced JDBC Wrapper now provides client-side encryption

7 May 2026 @ 5:00 pm

The AWS Advanced JDBC Wrapper now provides column-level client-side encryption through its KMS Encryption plugin. The wrapper provides advanced capabilities such as failover handling, AWS authentication integration, and enhanced monitoring for Amazon Aurora and Amazon RDS open source databases. It enables Java applications to encrypt sensitive data before it reaches the database without changing application code. Database encryption at rest and TLS in transit are foundational security controls. However, with these controls decrypt the data within the database engine. A compromised credential, overprivileged administrator, or SQL injection attack can expose sensitive data in plaintext, creating compliance risk under PCI DSS, HIPAA, and GDPR. The KMS Encryption plugin closes this gap by working at the JDBC driver level. When your application writes to an encrypted column, the plugin encrypts the value before it reaches the database. When reading, it decrypts the value before

Amazon SageMaker HyperPod now supports AMI-based node lifecycle configuration for Slurm clusters

7 May 2026 @ 4:00 pm

Amazon SageMaker HyperPod now supports AMI-based configuration that provisions Slurm cluster nodes with the software and configurations needed for a production-ready environment to run AI/ML training workloads. This removes the need to download, configure, or upload lifecycle configuration scripts to Amazon S3. With fewer operational steps to prepare a cluster and no lifecycle configuration scripts executing during node provisioning, cluster creation time is significantly reduced, so you can start running jobs sooner. AMI-based configuration includes required software such as Docker, Enroot, and Pyxis, and configurations such as Slurm accounting, SSH key generation, Slurm log rotation and user home directory setup. To enable AMI-based configuration, omit the LifeCycleConfig block from the instance group configuration when creating clusters using the CreateCluster API, or when using the SageMaker AI console, select "None" under Lifecycle scripts in Custom setup. For additiona

Amazon EC2 M8gn and M8gb instances are now available in AWS Europe (Ireland) region

7 May 2026 @ 4:00 pm

Starting today, Amazon Elastic Compute Cloud (Amazon EC2) M8gn and M8gb instances are available in the AWS Europe (Ireland) region. These instances are powered by AWS Graviton4 processors to deliver up to 30% better compute performance than AWS Graviton3 processors, and feature the latest 6th generation AWS Nitro Cards. M8gn instances offer up to 600 Gbps network bandwidth, the highest network bandwidth among network optimized EC2 instances. M8gb offer up to 300 Gbps of EBS bandwidth to provide higher EBS performance compared to same-sized equivalent Graviton4-based instances. M8gn are ideal for network-intensive workloads such as high-performance file systems, distributed web scale in-memory caches, caching fleets, real-time big data analytics, and Telco applications such as 5G User Plane Function (UPF). M8gb are ideal for workloads requiring high block storage performance such as high performance databases and NoSQL databases. M8gn instances offer instance sizes up

Amazon Connect Outbound Campaigns adds multi-contact time zone detection

7 May 2026 @ 4:00 pm

Amazon Connect Outbound Campaigns now detects customer time zones using all phone numbers and addresses on a customer profile, not just the primary contact fields. Previously, time zone detection used only the primary phone number, which could miss customers who span multiple time zones. When a profile's contact information spans multiple time zones, the system delivers only during hours that fall within your configured window in every detected time zone, and skips profiles when no overlap exists. For example, if a customer has a mobile number with an Eastern time area code and a business number with a Pacific time area code, and your campaign is configured for 9am–5pm delivery, messages will only be sent between 12pm–5pm ET (9am–2pm PT), when both time zones fall within the allowed window.  This capability is available in all AWS Regions where Amazon Connect Outbound Campaigns is offered at no additional&n

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

Gluware’s Titan rises to meet Mythos network vulnerability challenge

7 May 2026 @ 6:14 pm

Anthropic’s Claude Mythos Preview, released earlier this year, showed that AI systems could identify and probe network vulnerabilities at a speed that traditional patch management cycles were not designed to match. Security teams that had operated on 30-to-90-day remediation windows began reassessing that assumption. That’s the challenge that network automation vendor Gluware is taking on. This week the company announced Titan Exposure Management, a closed-loop agentic capability that determines which devices on a network are actually exposed to a given vulnerabili

AMD launches AI-targeted PCIe cards for current servers

7 May 2026 @ 5:12 pm

AMD has launched the latest in its Instinct enterprise GPU accelerators, the MI350, which are designed to fit the data center infrastructure customers already own. Targeted at agentic AI, Instinct MI350P PCIe cards are dual-slot drop-in cards for standard air-cooled servers. They are built to deploy inference on premises within customer’s current data center  power, cooling, and

Supply constraints, optical advances dominate Arista’s Q1

7 May 2026 @ 12:55 am

It’s mostly good news for Arista Networks, which reported total first-quarter revenue of $2.71 billion, up 35.1% compared to the year-ago quarter. The vendor raised its forecasted growth to 27.7%, aiming now for full-year 2026 revenue of $11.5 billion. Arista also raised its AI revenue target to $3.5 billion, effectively saying it would double its AI sales this year. Less positive is the supply-chain pressure, as networking components – memory, chips, and wafers – face ongoing shortages and

Lumen advances cloud networking vision with $475M Alkira buy

6 May 2026 @ 8:56 pm

Lumen Technologies has agreed to acquire Alkira, a cloud-native network-as-a-service (NaaS) platform, for $475 million in cash.  The deal targets a coverage gap that has defined enterprise networking for several years. Carriers including Lumen have built out north-south connectivity, the path between on-premises environments and cloud providers, but east-west traffic flowing between clouds and data centers remains manually

HPE bolsters autonomous network operations for Mist, Aruba Central

6 May 2026 @ 7:17 pm

HPE is adding autonomous networking capabilities to its Mist and Aruba Central packages to enable those systems to detect, diagnose, and resolve issues in real time without human intervention. “The self-driving network is no longer aspirational; it’s operational,” said Rami Rahim, executive vice president, president and general manager, networking, HPE, in a statement. “This fundamentally changes the role of networking from a system that informs to one that takes action on behalf of the business, freeing custo

Netskope launches AI agents for SOC and NOC automation

6 May 2026 @ 5:41 pm

Netskope this week introduced an AI-driven platform layer to ease the operational burden on security and network operations, as enterprises struggle to manage alert volumes and infrastructure complexity. Netskope One AgentSkope is an agentic AI framework designed to automate security and network operations workflows within Netskope’s SASE platform. The platform can automate tasks such as alert tr

Intel, behind in AI chips, bets on quantum and neuromorphic processors

6 May 2026 @ 5:24 pm

Intel for years chopped critical products including CPUs, GPUs and networking gear to cut corporate fat and get back into shape. Many cuts pre-date the appointment last year of Lip-Bu Tan as CEO. Now, Tan is placing a long-term bet beyond the current crop of AI chips and doubling down on quantum processors and neuromorphic chips, which survived Intel’s earlier product cuts. Tan has now tapped company veteran Pushkar Ranade to be Intel’s new chief technology officer, with a mission to drive developments in “quantum computing, neuromorphic computing, pho

Switch storm coming: Gartner forecasts price hikes, long lead times for enterprise data center switches

6 May 2026 @ 11:00 am

Enterprise companies looking to build or upgrade their data center switches, or even get technical support, best be prepared to wait in line behind AI-first providers that are chewing up most of the available resources. That’s the upshot of a recent Gartner report, which paints a grim picture of the data center switch market for the next year. Switch vendors are “aggressively pivoting resources” toward AI data centers for a simple reason: They are more profitable than traditional data centers. “Spending on AI network fabrics will surpass general-purpose data center networks in 2026 and more than double through 2029,” the

Extreme moves toward autonomous networking with advanced AI agent, management tools

5 May 2026 @ 9:17 pm

Extreme Networks is adding new AI agent software to its product portfolio, making significant upgrades to its Platform ONE management package, and extending its Wi-Fi 7 portfolio. At its Extreme Connect 2026 user conference, the company unveiled the second generation of its AI agent package, Extreme Agent One, which is designed to detect and autonomously act on network problems. It also debuted a new release of its core management system,

2026 network outage report and internet health check

5 May 2026 @ 4:07 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,

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

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.

Hosting VPS Linux vs Windows VPS

9 March 2026 @ 3:03 pm

The post Hosting VPS Linux vs Windows VPS appeared first on Heart Internet.

Domain Name Transfer Checklist: Everything You Need to Know

3 March 2026 @ 2:56 pm

The post Domain Name Transfer Checklist: Everything You Need to Know appeared first on Heart Internet.

Heart Internet Win Gapstars Innovation Award 2026

23 February 2026 @ 11:57 am

We’re incredibly proud to celebrate our Site Reliability Engineering team, who have won the Gapstars Innovation Award for their outstanding work improving platform stability, security, and visibility across our shared... The post Heart Internet Win Gapstars Innovation Award 2026 appeared first on Heart Internet.

A/B Testing Explained: A Practical Guide To Better Results | Part 1

20 February 2026 @ 8:32 am

If you want to improve your website you probably need to do A/B testing, otherwise known as split testing. Instead of guessing, A/B testing allows you to experiment more scientifically.... The post A/B Testing Explained: A Practical Guide To Better Results | Part 1 appeared first on Heart Internet.

How to enable two-factor authentication (2FA) on your Heart Internet account

28 January 2026 @ 12:37 pm

Account security matters, and switching on two-factor authentication (2FA) is a quick win. 2FA adds a second check during the sign-in process, so even if someone compromises your password, they still can’t get in.  To enable 2FA:  Step 1: Open your... The post How to enable two-factor authentication (2FA) on your Heart Internet account appeared first on Heart Internet.

serverfault.com

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

Hi, how can we fix our stagnating SQL Server?

8 May 2026 @ 2:38 am

what's the best way to handle SQL Server performance drops? I have a legacy SQL server 2008 R2, because we concerned about compatibility which we migrated it from a SQL server 2000, that’s I kept my database in a SQL server 2000 mode, the server itself just has 32 gigabytes RAM, this server was bought around 10 years ago, I am a software developer and I not really familiar with database management but I have tried my best to avoid the deadlock or things like that. with the data expansion, it performs drops day by day , recently it has been significant , the RAM usage is about 90% while the CPU usage is really low it’s around 10% to 30%, the database itself is about 50 giga currently.and I have checked hard disk it doesn’t have bad blocks or somethings. I have asked AI Anthropic, it gave me some SQL scripts SELECT TOP 20 wait\\\_type, wait\\\_time\\\_ms / 1000 AS wait\\\_time\\\_seconds, waiting\\\_tasks\\\_count, signal\\\_wait\

Decoding the 22-char salt of a password (PHP/MySQLi) [closed]

7 May 2026 @ 3:24 pm

This is my current code: if (!$row['is_verified']) { $message = 'Verifiera din e-post först.'; } elseif (password_verify($postPass, base64_decode($row['PassPhrase1'])) { This decodes the salt of the password using base64_decode (the salt is the 22-char long REMEMBER VARCHAR(22) of the password) But it does not decrypt the actual hash that it is stored with, that was created using password_hash("Code_of_Conduct", PASSWORD_ARGON2ID); Thanks in advance!

How do I get dnssec auto policy signing to output readable files?

7 May 2026 @ 1:37 pm

By default, dnssec automatic signing produces 'raw' files as output. These are unreadable binary files. If I do not care about the couple of extra megabytes the normal text format output takes, and find the ease of use of being able to tell what's being broadcast by my DNS server by cat ing a file to the terminal rather than using complicated tools and online checkers makes the crazy complexity of dnssec a little less brain-mushifying. How do I get it to output a file that can be read by humans in the signed format? I.e.: By default it does the automated 'semi-equivalent' (this command doesn't work, I don't know one that does*, the records are missing their values, but I hope I get the point across; I'm not interested in manually signing but I am interested in readable output) of cd /var/named/run-root/var/ dnssec-signzone -O raw -S -K keys/site.com site.com Ksite.com.+014+37707.key but I want the equivalent of:

Certificates for https [closed]

7 May 2026 @ 11:02 am

What is the best way to get certificates for https on Linux, nowadays? I need free certificate for public web site (with API on sub domain). It will be good to do not let root access for this tool. Edited Dear moderators, please, answer on my question before closing it. That is rude. Any IT question can be classified as product recommendation off-topic. For example, if you ask about nginx, that is recommendation of nginx. If you ask about apache, that is recommendation of apache. ===== I'm asking about client and its setup on server to get free https certificate. I want to know possible variants of this. Not self-signed, free, with sub domain, with limited access on server.

Postfix trying to deliver mail using old MX entries

7 May 2026 @ 10:38 am

We switched some of our company mailboxes (one domain) to Outlook servers. After that our emails are requiring up to 30 minutes to be delivered from our server to Outlook. Checked logs and there is something strange - before delivering almost all of e-mail to outlook there are few tries which ending with "Connection timed out". When I was checking this IP with telnet on server or locally - this IP's are not active and I'm getting timeouts. Tried to force flush DNS cache every minute on server - it won't help. When I checked A records for MX it looks like outlook is giving 4 IP's which are changing very often. So it looks like postfix is trying to send e-mails to servers which are somehow cached from previous attempts. Is there any solution to force postfix to resolve MX/A before sending each mail?

AKS/K8S: Increase Windows container C: filesystem size

7 May 2026 @ 4:09 am

We are migrating a container workload to AKS which previously ran onprem under Docker Swarm. The containers are spun up, process jobs from a queue, post their results to a service elsewhere on the network, then exit so the orchestrator can restart them as a clean slate for the next task. As part of the workload, each container generates a substantial amount of temporary data files that are intended to be discarded when the current operation completes, so are not mapped to any volume. Of note here is that these are Windows containers rather than Linux; this particular workload is locked to running on the Windows platform, so changing OS is not viable. What we are seeing inside the container is C#'s DriveInfo type reporting a freshly started container as having a C: sized at slightly less than 20GB, almost all of it "free" (clearly not counting the size of the running image). This is despite the host node having

windows GPO prevent alternate wifi when in range

6 May 2026 @ 10:40 pm

I'm trying to get our domain connected windows laptops to only connect to our wifi network when it is in range but I still want the users to be able to connect to other networks when away from site. Google has the option "restrict only if a managed Wi-Fi network is in range" that can accomplish this for chromebooks. Is there an option to accomplish this via Group policy?

Is there a way/tool to block an IP address in IIS based on a request path, at the server level?

6 May 2026 @ 6:04 pm

I recently implemented Filebeat on my IIS server to parse and send logs to an ELK stack (Elasticsearch, Logstash, Kibana) for tracking threats and monitoring performance on my server. I have found that a few times a day one or more of our domains will get flooded with hundreds of requests. They are most often GET or POST requests for various .php files. I know there are official ways to configure temporary blocks based on floods of requests using dynamic blocking in IIS. There are times that some of my sites might legitimately receive a flood of requests, so I have been hesitant to do that. None of my sites run php so what I would love to have would be a tool or configuration that, at the server level, can watch request paths for php files and just blackhole all future requests from that IP for some period of time. I already have my server set up to automatically return a 404 for any php file, or any of the other frequently scanned paths like wordpress, before calling

ASP.NET tempDirectory shared for multiple apps?

6 May 2026 @ 8:57 am

If we have multiple ASP.NET Framework 4.7.2 web apps deployed on the same IIS server, can we specify the same TempDirectory? Meaning the attribute TempDirectory of the web.config compilation section under system.web. It looks like the system puts the actual files in some structure of sub folders, so it looks like there will be separation. But I'm not sure... In case it matters, several of our web apps are the same code base, but with different configurations per site and virtual folder.

When will DSClosestFlag of the DC Locator be set to 1?

6 May 2026 @ 8:55 am

Imagine an environment with two sites, HQ and Branch. Both sites have a domain controller. A client from Branch wants to locate the optimal domain controller, and it so happens that the first query is performed against a domain controller from HQ. The most optimal domain controller should be the one from the Branch site. However HQ is the closest site to Branch. Will DSClosestFlag then be 1? Or does the domain controller know that there is a dedicated domain controller in Branch and therefore set it to 0? If the flag is 1, this would lead to selection of a non-optimal domain controller? I have already checked the official Microsoft documentation, but with the wording it is not exactly clear to me, when the domain controller thinks it is closest or not.

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