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.

DeepSeek OCR, MiniMax M2.1, and Qwen3-VL-8B-Instruct models are now available on SageMaker JumpStart

2 February 2026 @ 9:30 pm

Today, AWS announced the availability of DeepSeek OCR, MiniMax M2.1, and Qwen3-VL-8B-Instruct in Amazon SageMaker JumpStart, expanding the portfolio of foundation models available to AWS customers. These three models bring specialized capabilities spanning document intelligence, multilingual coding, advanced multimodal reasoning, and vision-language understanding, enabling customers to build sophisticated AI applications across diverse use cases on AWS infrastructure. These models address different enterprise AI challenges with specialized capabilities: DeepSeek OCR explores visual-text compression for document processing. It can extract structured information from forms, invoices, diagrams, and complex documents with dense text layouts. MiniMax M2.1 is optimized for coding, tool use, instruction following, and long-horizon planning. It automates multilingual software development and executes complex, multi-step office workflows, empowering developers

Announcing memory-optimized instance bundles for Amazon Lightsail

2 February 2026 @ 9:00 pm

Amazon Lightsail now offers memory-optimized instance bundles with up to 512 GB memory. The new instance bundles are available in 7 sizes, with Linux and Windows operating system (OS) and application blueprints, for both IPv6-only and dual-stack networking types. You can create instances using the new bundles with pre-configured OS and application blueprints including WordPress, cPanel & WHM, Plesk, Drupal, Magento, MEAN, LAMP, Node.js, Ruby on Rails, Amazon Linux, Ubuntu, CentOS, Debian, AlmaLinux, and Windows. The new memory-optimized instance bundles enable you to run memory-intensive workloads that require high RAM-to-vCPU ratios in Lightsail. These high-memory instance bundles are ideal for workloads such as in-memory databases, real-time big data analytics, in-memory caching systems, high-performance computing (HPC) applications, and large-scale enterprise applications that process extensive datasets in memory. These new bundles are now available in all

AWS STS now supports validation of select identity provider specific claims from Google, GitHub, CircleCI and OCI

2 February 2026 @ 8:17 pm

AWS Security Token Service (STS) now supports validation of select identity provider specific claims from Google, GitHub, CircleCI and Oracle Cloud Infrastructure in IAM role trust policies and resource control policies for OpenID Connect (OIDC) federation into AWS via the AssumeRoleWithWebIdentity API. With this new capability, you can reference these custom claims as condition keys in IAM role trust policies and resource control policies, expanding your ability to implement fine-grained access control for federated identities and help you establish your data perimeters. This enhancement builds upon IAM's existing OIDC federation capabilities, which allow you to grant temporary AWS credentials to users authenticated through external OIDC-compatible identity providers.

Amazon CloudFront announces mutual TLS support for origins

2 February 2026 @ 6:00 pm

Amazon CloudFront announces support for mutual TLS authentication (mTLS) for origins, a security protocol that enables customers to verify that requests to their origin servers come only from their authorized CloudFront distributions using TLS certificates. This certificate-based authentication provides cryptographic verification of CloudFront's identity, eliminating the need for customers to manage custom security controls. Previously, verifying that requests came from CloudFront distributions required customers to build and maintain custom authentication solutions like shared secret headers or IP allow-lists, particularly for public or externally hosted origins. These approaches required ongoing operational overhead to rotate secrets, update allow-lists, and maintain custom code. Now with origin mTLS support, customers can implement a standardized, certificate-based authentication approach that eliminates this operational burden. This enables organizations to enforce stri

AWS announces Flexible Cost Allocation in AWS GovCloud (US)

2 February 2026 @ 5:40 pm

AWS Network Firewall now supports flexible cost allocation through AWS Transit Gateway native attachments in AWS GovCloud (US) Regions, enabling you to automatically distribute data processing costs across different AWS accounts. Customers can create metering policies to apply data processing charges based on their organization's chargeback requirements instead of consolidating all expenses in the firewall owner account. This capability helps security and network teams better manage centralized firewall costs by distributing charges to application teams based on actual usage. Organizations can now maintain centralized security controls while automatically allocating inspection costs to the appropriate business units or application owners, eliminating the need for custom cost management solutions. Flexible cos

Amazon Connect now provides APIs to test and simulate voice interactions

2 February 2026 @ 4:30 pm

Amazon Connect now offers APIs to configure and run tests that simulate contact center experiences, making it easy to validate workflows, self-service voice interactions, and their outcomes. With these APIs, you can programmatically configure test parameters, including the caller's phone number or customer profile, the reason for the call (such as "I need to check my order status"), the expected responses (such as "Your request has been processed"), and business conditions like after-hours scenarios or full call queues. With this launch, you can also integrate testing directly into CI/CD pipelines, run multiple tests simultaneously to validate workflows at scale, and enable automated regression testing as part of your deployment cycles. These capabilities allow you to rapidly validate changes to your workflows and confidently deploy new customer experiences to production. To learn more about these features, see the

AWS HealthImaging adds JPEG XL support

2 February 2026 @ 4:29 pm

AWS HealthImaging now supports storing and retrieving lossy compressed medical images in the JPEG XL transfer syntax (1.2.840.10008.1.2.4.112). It is now simpler than ever to integrate HealthImaging with applications that require JPEG XL encoded DICOM data, such as digital pathology whole slide imaging systems. With this launch, HealthImaging stores your JPEG XL Lossy image data without transcoding, which maintains the fidelity of your data and reduces your storage costs. Further, you can retrieve stored image frames in the JPEG XL format without the latency of transcoding at retrieval time.

Amazon RDS now supports IPv6 for VPC endpoints of RDS Service APIs

30 January 2026 @ 8:55 pm

Amazon RDS now supports Internet Protocol version 6 (IPv6) for VPC endpoints of RDS Service APIs, in addition to the existing IPv6 support for public endpoints. This allows you to configure dual-stack (IPv4 and IPv6) connectivity to access RDS Service APIs directly from within your VPC without internet traversal. IPv6 provides an expanded address space, enabling you to scale your application on AWS beyond the limitations of IPv4 addresses. With IPv6, you can assign easy to manage contiguous IP ranges to micro-services and can get virtually unlimited scale for your applications. Moreover, with support for both IPv4 and IPv6, you can gradually transition applications from IPv4 to IPv6, enabling safer migration. This feature is available in all commercial AWS regions and AWS GovCloud (US) regions. Get started with

Amazon Connect launches improved wait time estimates

30 January 2026 @ 7:40 pm

Amazon Connect now delivers improved estimated wait time metrics for queues and enqueued contacts, empowering organizations. This allows contact centers to set accurate customer expectations, provide convenient options such as callbacks when hold times are extended, and balance workloads effectively across multiple queues. By leveraging the improved estimated wait time metrics, contact centers can make more strategic routing choices across queues while gaining enhanced visibility for better resource planning. For example, a customer calling about billing during peak hours with a 15-minute wait is seamlessly transferred to a cross-trained team with 2-minute availability, getting help faster without repeating their issue. The metric works seamlessly with routing criteria and agent proficiency configurations. 

Amazon SageMaker Unified Studio now supports AWS PrivateLink

30 January 2026 @ 7:08 pm

Today, Amazon SageMaker announced a new capability allowing you to establish connectivity between your Amazon Virtual Private Cloud (VPC) and Amazon SageMaker Unified Studio without customer data traffic going through the public internet. Customers needing to go beyond the standard data transfer protocol (HTTPS/TLS2) can choose to configure their VPC so data transfer stays within the AWS network. Through AWS PrivateLink, Network Administrators can now onboard AWS service endpoints to their VPC used by Amazon SageMaker Unified Studio. With the endpoints are onboarded, IAM policies used by Amazon SageMaker will enforce that customer data stay within the AWS network. Amazon SageMaker private access using AWS PrivateLink is available in all AWS Regions where Amazon SageMaker Unified Stu

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

Cisco: Latest news and insights

3 February 2026 @ 8:51 pm

Cisco (Nasdaq:CSCO) is the dominant vendor in enterprise networking, and under CEO Chuck Robbins, it continues to shake things up.  Cisco is focusing on strategic AI initiatives and partnerships across various regions to build and power AI data centers and ecosystems. This includes collaborations with major players like BlackRock, Global Infrastructure Partners, Microsoft and Nvidia to drive investment and scale AI infrastructure. The networking giant continue

Cisco: Infrastructure, trust, model development are key AI challenges

3 February 2026 @ 7:36 pm

Cisco CEO Chuck Robbins says 2026 is going to mark a turning point for enterprise and large-scale AI use. He led off today’s Cisco AI Summit, telling attendees that this will be the year of agentic applications and building greater trust and security into AI. “There are lots of questions and discussions about what does it mean to your enterprise infrastructure? What does it mean to your security posture? What does it mean to application development cycles?” Robbins said.  [ Related:�

Nvidia: Latest news and insights

3 February 2026 @ 4:33 pm

More processor coverage on Network World:Intel news and insights | AMD news and insights With its legacy of innovation in GPU technology, Nvidia

2026 network outage report and internet health check

3 February 2026 @ 2:21 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,

Eying AI factories, Nvidia buys bigger stake in CoreWeave

2 February 2026 @ 5:09 pm

Nvidia continues to throw its sizable bank account around, this time making a $2 billion investment in GPU cloud service provider CoreWeave. The company says the investment reflects Nvidia’s “confidence in CoreWeave’s business, team and growth strategy as a cloud platform built on Nvidia infrastructure.” [ Related: More Nvidia news and insights ] CoreWeave is not

AI, security tailwinds signal promising 2026 for Cisco

2 February 2026 @ 3:46 pm

In many ways, 2025 was the year Cisco got its product strategy right under the leadership of its chief product officer, Jeetu Patel. Splunk assimilation took hold, and we saw integrations with security, observability, networking and more. In addition, the core of Cisco’s product line—campus networking—underwent a major refresh with new Catalyst Smart Switches and Wi-Fi 7 access points. And after having made bold predictions

Quantum computing is getting closer, but quantum-proof encryption remains elusive

2 February 2026 @ 10:00 am

Quantum-safe encryption is needed now, even though large-scale quantum computers are still at least a few years away. According to the Government Accountability Office, large quantum computers that will be able to break today’s encryption standards are 10 to 20 years away. But the threat is here already, since adversaries can vacuum up encrypted data in hopes of reading it when quantum decryption arrives, in what are known as “harvest-now decrypt-later” attacks. “Harvest-now, decrypt-later is definitely a risk that is here,” says

Startup Amutable plotting Linux security overhaul to counter hacking threats

30 January 2026 @ 8:24 pm

If there’s one thing guaranteed to grab attention in the computer security world, it’s announcing yourself without fully explaining what it is you plan to do. This week, the Linux world got a taste of this enigmatic marketing ploy with the launch out of stealth of Berlin-based Linux security outfit Amutable. While its purpose is only vaguely defined in the launch announcement, nobody could accuse it of lacking ambition: it plans to bring “determinism and verifiable integrity to Linux systems” to address the operating system’s security weaknesses. Most tiny

Forward Networks launches agentic AI system built on network digital twin

30 January 2026 @ 6:32 pm

Network operations teams face a flood of AI-powered tools promising simplified management through natural language interfaces. Many amount to conversational wrappers around existing capabilities, offering convenience but not fundamental changes to how networks are managed and verified. That’s what Forward Networks’ first AI tool, called AI Assist, provided when it launched in 2024. Now in 2026, Forward Networks is taking a different approach with an agentic AI system that goes beyond a conversational interface. Rather than simply answering questions, it d

forensicswiki.org

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Computer forensic tools and techniques used by investigators

cyberciti.biz

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online community of new and seasoned Linux / Unix sysadmins.

Download of the day: GIMP 3.0 is FINALLY Here!

18 March 2025 @ 3:45 am

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

How to list upgradeable packages on FreeBSD using pkg

16 March 2025 @ 8:25 pm

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

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

16 March 2025 @ 12:17 pm

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

How to install KSH on FreeBSD

3 March 2025 @ 11:50 pm

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

Linux Sed Tutorial: Learn Text Editing with Syntax & Examples

3 March 2025 @ 9:47 am

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

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

23 February 2025 @ 10:07 pm

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

Critical Rsync Vulnerability Requires Immediate Patching on Linux and Unix systems

15 January 2025 @ 6:04 pm

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

How to control the SSH multiplexing with the control commands

15 January 2025 @ 8:29 am

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

ZFS Raidz Expansion Finally, Here in version 2.3.0

14 January 2025 @ 9:19 am

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

How to run Docker inside Incus containers

18 December 2024 @ 5:44 am

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

heartinternet.co.uk

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Hosting packages for an initial web presence

How to enable two-factor authentication (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.

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.

serverfault.com

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

kube-api doesn't resolve correctly webhook service name using internal dns

3 February 2026 @ 6:12 pm

I have an issue with kube-apiserver which try to resolve an audit-log webhook service name using external DNS (192.168.2.23 is an external DNS server from another LAN defined in /etc/resolv.conf) instead of using internal core-dns dns service. This cause the webhook call to fail: root@master01:/etc/kubernetes/manifests# crictl logs 6e5eaedc6391d 2>&1 | grep "webhook" | tail -5 2026-02-03T17:45:38.106154746Z AUDIT: id="9899a656-48a9-4a85-84ca-d855082123fb" stage="ResponseComplete" ip="10.2.10.71" method="watch" user="system:serviceaccount:argocd:argocd-application-controller" groups="\"system:serviceaccounts\",\"system:serviceaccounts:argocd\",\"system:authenticated\"" as="<self>" asgroups="<lookup>" user-agent="argocd-application-controller/v0.0.0 (linux/amd64) kubernetes/$Format" n

mariadbd: io_uring_queue_init() failed with EPERM: sysctl kernel.io_uring_disabled ... and the user ... not a member of sysctl kernel.io_uring_group

3 February 2026 @ 2:25 pm

I've been fighting to silence the following warning for an hour now: [Warning] mariadbd: io_uring_queue_init() failed with EPERM: sysctl kernel.io_uring_disabled has the value 2, or 1 and the user of the process is not a member of sysctl kernel.io_uring_group. (see man 2 io_uring_setup). create_uring failed: falling back to libaio 2026-02-03 13:43:43 0 [Note] InnoDB: Using Linux native AIO As, "somehow", suggested in this post, I tried to add capabilities and ulimits: docker run -d --name mariadb \ --network lempnet --ip 172.40.0.120 \ --volume datadb:/var/lib/mysql --volume /sys/fs/cgroup/memory.pressure:/sys/fs/cgroup/memory.pressure --env MARIADB_ROOT_PASSWORD=pipo \ --restart unless-stopped \ --ulimit memlock=128000 --ulimit nproc=128000 \ --cap-add CAP_SYS_ADMIN

How to go about debugging Pleroma federation issues?

3 February 2026 @ 12:15 pm

TL/DR I'm seeing ssl_verify_hostname:verify_cert_hostname in my logs and my posts dont reach foreign servers. I know of no way how to debug that. longer story what I did to get here I've been running my personal pleroma-instance for like a year now. Since that's kinda outdated, I tried to do an upgrade to the current 'stable' branch. So I git checkouted that and tried to run it. - that failed because of too old Elixir version. So I decided to do even worse and upgraded my debian setup from Bookworm to Trixie. That out of the way, I ran migrations and started pleroma (some problems with broken gopher support, so I disabled that)… after a while it ran and I was using it for 3-4 days. I noticed near complete lack of any interactions and tried to debug why. Turns out since the upgrade none of my posts federated to other instances. (I fetched their posts fine though) What I tried to debug

DNS Server And Email Server on same machine [closed]

3 February 2026 @ 12:13 pm

There is a DNS server and Email server following email client app two users are there. Private set up is DNS server, Email server, Email client App, Domain Name (min 2 email id user) Explain functions process of how things are working.

In what scenarios has adopting a cloud service added operational complexity rather than reducing it? [closed]

3 February 2026 @ 8:40 am

I’ve personally seen managed databases, auto-scaling, and complex networking setups backfire—sometimes costing hours or even days of troubleshooting. Curious what real-life experiences others have had and what lessons you all have learned.

Identifing Legacy SCSI RAID Configuration from Drives [closed]

3 February 2026 @ 2:25 am

I have two Ultrawide320 36GB drives from 2001 that appear to have been part of a RAID configuration, not sure which RAID type. The previous owner doesn't have any details about the system these were deployed in. I am working up a analysis strategy to see if data on these drives can be recovered. I was planning on purchasing a PCI Ultrawide SCSI card to see what I can glean. Is there a Linux tool that can help me determine what the RAID configuration was these two drives to mount them and retrieve the data?

DNSSEC NSEC black lies break aggressive NSEC caching?

2 February 2026 @ 11:12 pm

I am currently experiencing an issue with hosting my DNSSEC-enabled zone at Bunny.net's DNS service: Sporadically, DNSSEC aware resolvers are returning SERVFAIL or NXDOMAIN responses for records which should exist. An example is given by this RIPE Atlas measurement: https://atlas.ripe.net/measurements/152625241/results It shoes that the anycast node with NSID dns4eu-fra-1 is returning an NXDOMAIN while the rest of the resolver network returns to the correct reply. My provider Bunny.net is employing NSEC black lies to prohibit zone enumeration. I have somehow the feeling that something is wrong here, as my resolver is returning an extended error messaging indicating the the NXDOMAIN response has been cached ("2NEP: synthesized from aggressive cache"):

Shared secrets with CSI secret sync enabled

2 February 2026 @ 5:33 pm

I would be interested to understand how to handle shared secrets used by many resources (e.g. deployments) by using CSI Secret Provider Classes. In this moment I have many Helm Releases in the same namespace that references and sync the same secret from Azure Key Vault. By seeing the yaml of one secret referenced more than once, I see many owner references, obv the ReplicaSets of all helm releases's revisions. kind: Secret metadata: creationTimestamp: "2026-01-20T17:22:24Z" labels: secrets-store.csi.k8s.io/managed: "true" name: rabbitmq-password namespace: stackit ownerReferences: - apiVersion: apps/v1 kind: ReplicaSet name: serveragent-7bb68c7d49 uid: 23d5e5b9-7ee7-4b59-ac0b-04f32974d7e5 - apiVersion: apps/v1 kind: ReplicaSet name: serveragent-c59895896 uid: 45841770-e66f-48ac-b164-81a30835439b - apiVersion: apps/v1 kind: ReplicaSet name: device-5fb776cfc4 uid: 19e59d53-4b24-4644-8d0f-

How to set up 802.1X with EAP-TLS certificates to restrict switch access to authorized computers only? [closed]

2 February 2026 @ 1:17 pm

I am setting up a lab where network devices such as switches and access points only allow management from computers that are authorized with certificates and 802.1X authentication. Specifically, I need help on: Setting up the certificate authority and issuing client certificates. Configuring 802.1X authentication on switches from vendors such as Cisco, Aruba, etc. Configuring a RADIUS server (Windows NPS or FreeRADIUS) to work with the certificates. Ensuring that only client devices with valid certificates can access the switch and configure it. I am looking for a step-by-step lab guide or tutorial, preferably one that shows the complete flow from certificate issuance to switch access restriction. Any links to videos, guides, or detailed instructions would be very helpful. Thank you!

How to use a different IP address on a wireguard interface point to point connection

2 February 2026 @ 11:35 am

I have a Wireguard tunnel on two Debian 12 machines, host1 and host2. They use "tunnel-IP's" with a /31 mask, only for the purpose of this P2P connection, that shouldn't be used elsewhere. Host IP wg0-IP host1 172.21.0.1 172.31.0.0/31 host2 172.22.0.1 172.31.0.1/31 host3 172.22.0.2 - host1 can ping host2. The packets originate from the tunnel-IP 172.31.0.0, and host2 has a route back to host1. host1 fails to ping host3. The packets arrive at host3, but host3does not have a route back to 172.31.0.1/31, so the packets do not return. host3can ping host1, so static routes for 172.21.0.0/16 are set up correctly. What is the most robust and reasonable way to set up the tunnel to be used onl

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