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 Client VPN now supports Ubuntu OS version 26.04 LTS

8 May 2026 @ 10:39 pm

AWS Client VPN now supports Linux desktop client with Ubuntu versions 26.04 LTS. You can now run the AWS supplied VPN client on the latest Ubuntu OS versions. AWS Client VPN desktop clients are available free of charge, and can be downloaded here. AWS Client VPN is a managed service that securely connects your remote workforce to AWS or on-premises networks. It supports desktop clients for MacOS, Windows, and Ubuntu-Linux. With this release, CVPN now supports the latest version of Ubuntu client - 26.04 LTS, along with 22.04 and 24.04. It already support Mac OS version Sonoma 14.0,, Sequoia 15.0, and Tahoe 26.0, and Windows 11. Client also supports ARM64 for MacOS and Windows. This client version is available in all regions where AWS Client VPN is generally available with no additional cost. To learn more about Client VPN: Visit the AWS Client VPN

Amazon Connect adds default Step-by-Step Guides for After Contact Work

8 May 2026 @ 8:12 pm

Amazon Connect now supports Default Guides for After Contact Work (ACW), enabling contact center administrators to automatically launch a Step-by-Step Guide when an agent enters the ACW state without any manual work.  This capability helps contact centers standardize post-contact workflows and reduce handle time by ensuring agents are automatically guided through required wrap-up tasks, such as logging disposition codes, updating cases, or completing follow-up actions. By eliminating the need for agents to manually navigate to the correct application during ACW, organizations can improve consistency, reduce errors, and accelerate agent productivity across their contact center operations.  To learn more and get started, visit the Amazon Connect webpage and documentation

Amazon Route 53 Global Resolver now lets you add and remove AWS Regions for anycast DNS resolution

8 May 2026 @ 5:43 pm

Amazon Route 53 Global Resolver now lets you add and remove AWS Regions for anycast DNS resolution, giving you flexible control over where your DNS queries are resolved. This allows you to easily expand Global Resolver coverage as your organization grows or adjust regional deployment to meet compliance requirements. Global Resolver provides anycast DNS resolution for public internet domains and private Route 53 hosted zones from any location, along with DNS query filtering and centralized logging. With this update, you can dynamically adjust which AWS Regions participate in anycast resolution without recreating your Global Resolver configuration. This capability is available at no additional cost in all AWS Regions where Route 53 Global Resolver is supported. To get started, see the Route 53 Global Resolver documentation. For regional availability

AWS Service Catalog is now available in the AWS Asia Pacific (New Zealand) and Canada West (Calgary) regions

8 May 2026 @ 4:43 pm

AWS Service Catalog is now available to customers in two additional AWS Regions: Asia Pacific (New Zealand) and Canada West (Calgary). AWS Service Catalog enables customers to create, govern, and distribute a catalog of approved Infrastructure as Code (IaC) products for deployment on AWS. Administrators define products using AWS CloudFormation or other IaC tools such as Terraform. A product is a set of AWS resources that can range from a single compute instance to a fully configured multi-tier application. Customers can share portfolios of approved products across AWS accounts and organizational units through AWS Organizations, giving engineers, database administrators, data scientists, and other end-users consistent self-service access to governed AWS resources across their organization. With AWS Service Catalog, organizations can apply launch and template constraints to govern how products are provisioned, manage product versions as they evolve, and control acces

IAM Policy Autopilot adds Java support and Terraform-aware policy generation

8 May 2026 @ 4:00 am

IAM Policy Autopilot now supports Java applications and Terraform-aware policy generation, expanding its language coverage and its ability to generate less permissive IAM policies from code. IAM Policy Autopilot is an open-source tool launched at re:Invent 2025 that helps builders quickly and deterministically create baseline IAM policies on AWS that you can refine as your application evolves, reducing the time you spend writing IAM policies and troubleshooting access issues. Java has been one of the most requested languages from IAM Policy Autopilot users. With this release, Java developers can now analyze their application source code to generate AWS IAM policies, joining Python, TypeScript, and Go as supported languages. In addition, IAM Policy Autopilot can now cross-reference Terraform resource definitions with SDK calls in your application code to resolve actual resource ARNs for each IAM action. For example, a policy generated for an application that calls S3 GetObjec

Amazon Route 53 Resolver endpoints now support additional capabilities for IPv6 query traffic

7 May 2026 @ 11:08 pm

Amazon Route 53 Resolver endpoints now support DNS64 on inbound endpoints and IPv6 forwarding through the internet gateway (IGW) on outbound endpoints, making it easier to manage hybrid DNS across IPv4 and IPv6 networks. With DNS64 enabled on inbound endpoints, you can synthesize AAAA (IPv6) responses for domains that only have A (IPv4) records, allowing IPv6-only clients on-premises to reach IPv4 services on AWS without changes to those services. You can also configure outbound endpoints to forward DNS queries to public IPv6 name servers through the IGW. Amazon Route 53 Resolver endpoints simplify hybrid cloud DNS by enabling seamless query resolution between on-premises networks and Amazon Virtual Private Cloud (Amazon VPC). As you transition workloads to IPv6, these capabilities help your IPv6 resources on VPCs and on-premises networks communicate with both IPv4 and IPv6 destinations without additional workarounds. These capabilities are available at no addition

AWS Marketplace introduces Tax management portal for sellers

7 May 2026 @ 9:36 pm

AWS Marketplace launches a new Tax management portal that provides sellers a streamlined self-service process to view and download invoices, eliminating the need to request invoices through support channels. Tax management portal integrates the invoice management directly into the AWS Partner Central console, providing centralized access to both seller listing fee invoices and invoices issued to buyers in applicable regions. The portal streamlines invoice retrieval and record-keeping for sellers and partner finance teams managing AWS Marketplace operations. Sellers can now access the new experience through AWS Partner Central or AWS Marketplace Management portal, enabling advanced search and filtering capabilities, allowing you to search listing fee invoices by invoice ID, date range, or invoicing entity. Sellers can also access these invoices programmatically through the

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

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

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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

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.

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.

serverfault.com

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

Following reboot, Azure Ubuntu VM cannot reach internet

8 May 2026 @ 6:39 pm

As part of a learning journey in Azure, I have an Ubuntu VM on Azure running virtualmin for a web host; following a reboot, the device cannot reach the internet, either by IP or DNS. Several package updates happen automatically, however no additional packages were installed. I can't ping the gateway (expected, I believe ICMP is disabled to the gateway) but I also can't ping 8.8.8.8. IPv6 is disabled on this device, and it has an attached public IP. I've searched a lot, and there's a lot I've found about SSH breaking, but this is more than SSH; I cannot install packages or reach any of the running services inbound. Traceroute is not installed, and I can't reach apt to install it. Nothing changed with the NSG rules, but here are the rules:NSG Configuration Network configuration in Azure: Network Config in Azure The VM itself is set to DHCP,

How can I setup double nginx reverse proxy?

8 May 2026 @ 12:48 pm

I want to use double nginx reverse proxy: client <--> first nginx reverse proxy <--> second nginx reverse proxy <--> web server 1st nginx server IP: 111.222.333.444. Second nginx server IP: 555.666.777.888. The web server where site is hosted IP: 999.000.111.222. The domain is test.domain.com. 1st nginx config file (111.222.333.444.conf): server { listen 80; server_name test.domain.com; location / { proxy_pass http://555.666.777.888; proxy_cache off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header Host $host; proxy_redirect off; charset off; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } } server { listen 443 ssl; server_name test.domain.com; ssl_certificate /etc/nginx/conf.d/ssl.test.domain.com.pem; ssl_certificate_key /etc/nginx/conf.d/ssl.test.domain.com.key; location / { proxy_pass https://555.666.777.888; proxy_cache off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header Host $h

Nginx 1.18 Proxy: Backend response alignment issues with Apache 2.4 (Leaking adjacent response headers)

8 May 2026 @ 6:30 am

I am troubleshooting a production issue where my Nginx 1.18 reverse proxy appears to be desynchronizing from an Apache 2.4.41 backend. The Problem: During high-concurrency testing or when using specifically crafted Transfer-Encoding: chunked requests, the Nginx frontend seems to lose track of request/response boundaries. I am seeing cases where the response for Request B contains the headers or body fragments intended for Request A (which was an internal-only GET request). Specifically, I’ve seen Base64-encoded CSS strings from the backend appear in the body of an unrelated 404 response. My Setup: Frontend: Nginx 1.18.0 (Ubuntu) Backend: Apache 2.4.41 via proxy_pass Protocol: HTTP/1.1 with Keep-Alive enabled. The Goal: I need the backend to strictly isolate responses so that smuggled or malformed requests in the pipeline don't "bleed" into the next legitim

How can we fix SQL Server performance? [closed]

8 May 2026 @ 2:38 am

What's the best way to handle SQL Server performance drops? We have SQL Server 2008 R2, migrated from SQL Server 2000. The database is in SQL Server 2000 compatibility mode. The server has 32 GB RAM, and is 10 years old. The performance decreases day by day. RAM is 90% used, CPU usage is 10% to 30%, the database is 50 GB. I asked AI Anthropic, it gave me this SQL scripts: SELECT TOP 20 wait\\\_type, wait\\\_time\\\_ms / 1000 AS wait\\\_time\\\_seconds, waiting\\\_tasks\\\_count, signal\\\_wait\\\_time\\\_ms / 1000 AS signal\\\_wait\\\_seconds FROM sys.dm\\\_os\\\_wait\\\_stats WHERE wait\\\_type NOT IN ( 'SLEEP\\\_TASK', 'BROKER\\\_TASK\\\_STOP', \\\_BUFFER\\\_FLUSH', 'CLR\\\_AUTO\\\_EVENT', 'CLR\\\_MANUAL\\\_EVENT', 'LAZYWRITER\\\_SLEEP', 'RESOURCE\\\_QUEUE', 'SLEEP\\\_SYSTEMTASK', 'WAITFOR', 'LOGMGR\\\_QUEUE', 'CHECKPOINT\\\_QUEUE', 'REQUEST\\\_FOR\\\_DEADLOCK\

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? I did some more test - watching mail.log and the same time resolving mx entry to IP using google DNS and local resolver. Results are strange. W

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?

poundhost.com

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Cheap dedicated server hosting

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