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.

Oracle Database@AWS is now available in three additional AWS Regions

23 December 2025 @ 6:50 pm

Oracle Database@AWS is now generally available in three additional AWS Regions - US-East-2 (Ohio), EU-Central-1 (Frankfurt), and AP-Northeast-1 (Tokyo). Oracle Database@AWS enables customers to access database services on Oracle Cloud Infrastructure (OCI) managed Oracle Exadata systems within AWS data centers. With this launch, customers in the EU and Japan with in-region data residency requirements can easily migrate on-premises Oracle Exadata applications to AWS. With this expansion, AWS customers can run OCI Exadata Database Service, OCI Autonomous Database on Dedicated Infrastructure, and OCI Autonomous Recovery Service in five Regions - US-East-1 (N.Virginia), US-West-2 (Oregon), US-East-2 (Ohio), EU-Central-1 (Frankfurt), and AP-Northeast-1 (Tokyo). To use these services, request a private offer from Oracle through the AWS Marketplace, and

NVIDIA Nemotron 3 Nano now available on Amazon Bedrock

23 December 2025 @ 6:11 pm

Amazon Bedrock now supports NVIDIA Nemotron 3 Nano 30B A3B model, NVIDIA's latest breakthrough in efficient language modeling that delivers high reasoning performance, native tool calling support, and extended context processing with 256k token context window. This model employs an efficient hybrid Mixture-of-Experts (MoE) architecture to ensure higher throughput than its predecessors for agentic and coding workloads, while maintaining the reasoning depth of a larger model. With explicit reasoning controls and higher accuracy enabled by advanced reinforcement learning techniques and multi-environment post-training at scale, this model is ideal for enterprises, startups, and individual developers building multi-agent workflows, developer productivity tools, processes automation, and for scientific and mathematical reasoning analysis, amongst others. NVIDIA Nemotron 3 Nano on Amazon Bedrock is powered by Project Mantle, a new distributed inference engine for large-scale machi

Amazon WorkSpaces Secure Browser now supports WebAuthn redirection for local Chromium browsers

23 December 2025 @ 6:00 pm

Amazon WorkSpaces Secure Browser now supports Web Authentication (WebAuthn) redirection, allowing users to authenticate to websites using their local FIDO2 security keys, biometric authenticators, and platform authenticators while browsing in their WorkSpaces Secure Browser session. This feature is compatible with Chromium-based browser on users’ local devices, such as Google Chrome 136 (or later) or Microsoft Edge 137 (or later). It is not supported on non-Chromium-based browsers such as Safari or Firefox. WebAuthn redirection helps users enjoy seamless and secure authentication on websites within their WorkSpaces Secure Browser sessions. This feature supports FIDO2 security keys, passkeys, and platform authenticators like Windows Hello or Touch ID. To enable the feature, administrators must activate WebAuthn redirection in Secure browser’s portal settings and configure the local browsers using the WebAuthenticationRemoteDesktopAllowedOrigins policy. This configuration

Amazon MSK expands Standard Brokers and Express Brokers to Asia Pacific (New Zealand) Region

23 December 2025 @ 6:00 pm

Amazon Managed Streaming for Apache Kafka (Amazon MSK) is now available in Asia Pacific (New Zealand) region. Customers can create Amazon MSK Provisioned clusters in this region starting today. Amazon MSK is a fully managed service for Apache Kafka and Kafka Connect that makes it easier for you to build and run applications that use Apache Kafka as a data store. Amazon MSK is fully compatible with Apache Kafka, which enables you to more quickly migrate your existing Apache Kafka workloads to Amazon MSK with confidence or build new ones from scratch. With Amazon MSK, you spend more time building innovative streaming applications and less time managing Kafka clusters. Amazon MSK offers two types of Apache Kafka provisioned broker - Standard brokers and Express brokers. Standard brokers offer the most flexibility to configure your cluster’s performance. You can configure availability,

MiniMax-M2 is now available on Amazon SageMaker JumpStart

23 December 2025 @ 3:00 pm

MiniMax-M2 is now available on Amazon SageMaker JumpStart, providing customers with immediate access to deploy this efficient open-source model in minutes. With SageMaker JumpStart, you can quickly discover, evaluate, and deploy MiniMax-M2 using either SageMaker Studio's intuitive interface or the SageMaker Python SDK for programmatic deployment. MiniMax-M2 redefines efficiency for agents. It's a compact, fast, and cost-effective MoE model (230 billion total parameters with 10 billion active parameters) built for elite performance in coding and agentic tasks, all while maintaining powerful general intelligence. To learn more about deploying foundation models with SageMaker JumpStart, deployment options with the SDK, and best practices for implementation, refer to our documentation. MiniMax-M2 is available in US East (N. Virginia), US East (Ohio), US West (Oregon), Asia Pa

AWS Secrets Manager announces improved secret sorting capabilities

23 December 2025 @ 3:00 pm

Today, AWS Secrets Manager announces enhanced secret sorting capabilities in the Secrets Manager console and for ListSecrets API. You can now sort secrets by name, last changed date, last accessed date, and creation date—expanding beyond the previous creation date-only option. Secrets Manager is a fully managed service that helps you manage, retrieve, and rotate database credentials, application credentials, API keys, and other secrets throughout their lifecycles. This enhancement improves secret discovery by providing flexible sorting options across multiple dimensions through both Secrets Manager console and APIs. The new sorting capabilities are available in Secrets Manager console and ListSecrets API in all AWS commercial and AWS GovCloud (US) Regions. For a list of regions where Secrets Manager is available, see the

Amazon RDS for MySQL announces Innovation Release 9.5 in Amazon RDS Database Preview Environment

23 December 2025 @ 3:00 pm

Amazon RDS for MySQL now supports community MySQL Innovation Release 9.5 in the Amazon RDS Database Preview Environment, allowing you to evaluate the latest Innovation Release on Amazon RDS for MySQL. You can deploy MySQL 9.5 in the Amazon RDS Database Preview Environment which provides the benefits of a fully managed database, making it simpler to set up, operate, and monitor databases. MySQL 9.5 is the latest Innovation Release from the MySQL community. MySQL Innovation releases include bug fixes, security patches, as well as new features. MySQL Innovation releases are supported by the community until the next innovation minor, whereas MySQL Long Term Support (LTS) Releases, such as MySQL 8.0 and MySQL 8.4, are supported by the community for up to eight years. Please refer to the MySQL 9.5 release notes an

AWS Transform enables network conversion for hybrid data center migrations

23 December 2025 @ 12:47 pm

AWS Transform now supports automatic network conversion from hybrid data centers, eliminating manual network mapping for environments running both VMware and non-VMware workloads. The service now analyzes VLANs and IP ranges across all exported source networks and maps these to AWS constructs like Virtual Private Clouds (VPCs), subnets, and security groups. AWS Transform for VMware is an agentic AI-powered service that automates the discovery, planning, and migration of VMware workloads, accelerating infrastructure modernization with increased confidence. The service extends support to hybrid data centers by analyzing exported data from application mapping tools such as modelizeIT to automatically generate Infrastructure as Code and provision AWS networking resources. This feature is available in all AWS Transf

AWS End User Messaging SMS launches a Generative AI Registration Reviewer (Preview)

23 December 2025 @ 8:00 am

Starting today, AWS End User Messaging customers can use AWS generative AI to review their phone number registrations, so you can submit to mobile carriers correctly the first time. With the registration reviewer (preview), AWS will provide you feedback on your registration form checking the message sample, opt-in description, use-case, help and stop messages, etc., helping you submit an accurate and complete registration. AWS End User Messaging provides developers with a scalable and cost-effective messaging infrastructure without compromising the safety, security, or results of their communications. Developers can integrate messaging to support uses cases such as one-time passcodes (OTP) at sign-ups, account updates, appointment reminders, delivery notifications, promotions and more. Support for generative AI registration reviewer is available in all AWS Regions where End User Messaging is available, see the

Amazon Redshift supports four new materialized view (MV) features on data shares

23 December 2025 @ 8:00 am

Amazon Redshift now allows you to run create MV and refresh MV commands from multiple Amazon Redshift data warehouses. This update also allows you to create an MV on shared MVs. Finally, this release now supports concurrency scaling of the create materialized view (MV) data definition language (DDL) command. With this update, you can now scale the create MV DDL command whenever your main Amazon Redshift data warehouse cluster or workgroup runs out of resources simply by enabling concurrency scaling in your Amazon Redshift account. You can start using these new capabilities immediately in all AWS regions where Amazon Redshift is available to scale your workload and build resilient analytics applications with predictable Service Level Agreements. To get started, refer to the Concurrency Scalin

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

Google Cloud signs $10 billion deal with Palo Alto Networks

23 December 2025 @ 1:21 pm

Google Cloud has signed a comprehensive cooperation agreement with cybersecurity company Palo Alto Networks. As part of the agreement, some of Palo Alto Networks’ current services will be moved to Google’s cloud platform. But it is also about offering new AI services to customers, Reuters reports. According to Reuters, the agreement is estimated

Google agrees to acquire infrastructure builder Intersect to accelerate capacity development

23 December 2025 @ 4:01 am

Google parent Alphabet is taking steps to enable speedier addition of capacity to feed AI’s increasing demands with its announcement of plans to buy data center and energy company Intersect. This, it said, will meet intensive demand, increase energy reliability, reduce power delays, and support development of alternative energy sources. “AI infrastructure across the board appears to be at capacity, and there are questions whether upcoming investments in data centers will come to fruition on time,” said Thomas Randall, research lead at Info-Tech Research Group. “Alphabet acqui

Data center investments break all records

22 December 2025 @ 4:33 pm

New data centers are being built around the world in connection with AI initiatives. According to a compilation by S&P Global, spending will reach a record $61 billion in 2025, with the US and Canada accounting for the vast majority. Europe, on the other hand, accounts for only a small fraction of spending on data center construction. “In Europe, the buildout of data centers is expected to grow at a lower rate than other regions,” S&P Global Market Intelligence analyst Iuri Struta told

Top 5 enterprise tech priorities for 2026

22 December 2025 @ 10:00 am

It’s the season for “looking ahead to next year” articles that tell some group or another what they should be doing or what some “expert” says they should do. Let’s take a different slant and focus on what one group— arguably the most important tech buyer group — actually says they’re going to do. I’ve collected 284 comments on tech priorities for 2026 from enterprises, and here are the top five. 1. AI optimization and uncertainty Let’s start with a priority that embraces two unsurprising sentiments. The first is that the top priority, cited by 211 of the enterprises, is to

WatchGuard fixes ‘critical’ zero-day allowing firewall takeover

19 December 2025 @ 5:48 pm

WatchGuard has issued an urgent patch alert for its Firebox firewall appliances after discovering a critical-rated vulnerability that is under exploit by threat actors. Tracked as CVE-2025-14733, with a CVSS score of 9.3, the flaw is an Out-of-bounds Write vulnerability affecting the iked process, a WatchGuard Fireware OS component responsible for the IKEv2 key exchange in IPSec VPNs. According to the WatchGuard advisory, this weakness could “allow a remot

Attackers bring their own passwords to Cisco and Palo Alto VPNs

19 December 2025 @ 3:28 pm

Security researchers have flagged a coordinated credential-based campaign targeting VPN authentication endpoints from Cisco and Palo Alto Networks. Over just two days in mid-December, attackers launched large-scale automated login attempts against Cisco’s SSL VPN and Palo Alto Networks’ GlobalProtect services. A GreyNoise analysis noted that the campaign does not exploit software bugs, but instead relies on churning through username and password combos at scale.“Consistent infrastructure usage and timing indicate a single campaign pivoting across multiple VPN platforms,” the researchers said in a blog post. GreyNoise confirmed millions of login sessions acros

Cisco: Latest news and insights

19 December 2025 @ 3:25 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

Snowflake software update caused 13-hour outage across 10 regions

19 December 2025 @ 2:40 pm

A software update knocked out Snowflake’s cloud data platform in 10 of its 23 global regions for 13 hours on December 16, leaving customers unable to execute queries or ingest data. Customers saw “SQL execution internal error” messages when trying to query their data warehouses, according to Snowflake’s incident report. The outage also disrupted Snowpipe and Snowpipe Streaming file ingestion, and data clustering appeared unhealthy. “Our initial investigation has identified that our most recent release introduced a backwards-incompatible database schema update,�

HPE OneView vulnerable to remote code execution attack

19 December 2025 @ 1:53 am

A maximum severity remote code execution vulnerability in Hewlett Packard Enterprise (HPE) OneView network and systems management suite is “bad” and needs to be patched immediately, says a cybersecurity expert. “Vendors typically downplay the severity of a vulnerability,” says Curtis Dukes, executive VP for security best practices at the Center for Internet Security, “but HPE did not – it’s a 10.” The vulnerability is remotely executable by an unauthenticated user, he added, and it impacts every recent version of the suite. On top of that, he pointed out, OneView

Networking terms and definitions

18 December 2025 @ 6:21 pm

To find a brief definition of the networking term you are looking for user your browser’s “Find” feature then follow links to a fuller explanation. Abstraction interface (SAI) An abstraction interface (SAI) is an API designed to allow network software (such as an operating system) to control the hardware of a network switch. Traditionally, if you bought a switch from a specific vendor, you had to use its software to run it. If you wanted to switch hardware, you had to redo management system. SAI c

forensicswiki.org

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Computer forensic tools and techniques used by investigators

cyberciti.biz

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online community of new and seasoned Linux / Unix sysadmins.

Download of the day: GIMP 3.0 is FINALLY Here!

18 March 2025 @ 3:45 am

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

How to list upgradeable packages on FreeBSD using pkg

16 March 2025 @ 8:25 pm

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

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

16 March 2025 @ 12:17 pm

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

How to install KSH on FreeBSD

3 March 2025 @ 11:50 pm

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

Linux Sed Tutorial: Learn Text Editing with Syntax & Examples

3 March 2025 @ 9:47 am

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

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

23 February 2025 @ 10:07 pm

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

Critical Rsync Vulnerability Requires Immediate Patching on Linux and Unix systems

15 January 2025 @ 6:04 pm

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

How to control the SSH multiplexing with the control commands

15 January 2025 @ 8:29 am

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

ZFS Raidz Expansion Finally, Here in version 2.3.0

14 January 2025 @ 9:19 am

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

How to run Docker inside Incus containers

18 December 2024 @ 5:44 am

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

heartinternet.co.uk

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Hosting packages for an initial web presence

How to Choose the Perfect Domain Name for Your Business

9 July 2025 @ 9:30 am

Get Your Name Right – The Internet Never Forgets Choosing a domain name might sound simple – until you realise it’s the online equivalent of naming your child. No pressure.... The post How to Choose the Perfect Domain Name for Your Business appeared first on Heart Internet.

What is a VPS? And is it Time You Got One?

25 June 2025 @ 9:30 am

Discover what a VPS server is, how VPS hosting works, and why it’s ideal for small businesses. Learn the benefits and explore VPS plans with Heart Internet. The post What is a VPS? And is it Time You Got One? appeared first on Heart Internet.

We’re Now Certified by the Green Web Foundation

11 June 2025 @ 9:30 am

💚 Hosting that works hard, treads lightly.   Big news: Heart Internet is now officially listed with the Green Web Foundation. That means our hosting services are recognised as being... The post We’re Now Certified by the Green Web Foundation appeared first on Heart Internet.

What is Web Hosting and Why Does Your Business Need It?

6 May 2025 @ 4:54 pm

Without web hosting, your website would not be visible or accessible to users! It is crucial to host your website with a website hosting service to ensure that your business... The post What is Web Hosting and Why Does Your Business Need It? appeared first on Heart Internet.

How to Enable Root Access via SSH on Your VPS for Migration using Plesk

11 March 2025 @ 7:41 am

If you get one of the following messages from the Plesk migrator you should check that you are using root as the username along with the Plesk admin password. “The... The post How to Enable Root Access via SSH on Your VPS for Migration using Plesk appeared first on Heart Internet.

How to Enable Root Access on Your VPS Server Using Plesk

11 March 2025 @ 7:40 am

If you get one of the following messages from the Plesk migrator you should check that you are using root as the username along with the Plesk admin password. “The... The post How to Enable Root Access on Your VPS Server Using Plesk appeared first on Heart Internet.

Are your website fonts sending the right message?

3 February 2025 @ 10:18 am

Did you know that the fonts you use on your website can impact the way your customers perceive and interact with your brand? The post Are your website fonts sending the right message? appeared first on Heart Internet.

Black Friday at Heart Internet

28 November 2024 @ 3:27 pm

Black Friday is here, and we’re bringing you incredible savings to help your business thrive online. From 29th November 2024 to 9th December 2024, you can enjoy 15% off some... The post Black Friday at Heart Internet appeared first on Heart Internet.

13 Easy Ways to Optimise Your Website for Speed and Performance

1 October 2024 @ 2:53 pm

A slow website is like a slow waiter: it doesn’t matter how good the food is if the service is frustratingly sluggish. If your site takes too long to load,... The post 13 Easy Ways to Optimise Your Website for Speed and Performance appeared first on Heart Internet.

Black Friday and Cyber Monday sale now on at Heart Internet

22 November 2022 @ 3:31 pm

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

serverfault.com

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

I need some input on how Debian 13 /tmp directory using tmpfs file system works

25 December 2025 @ 3:11 pm

I noticed that on my 16 GB RAM Acer laptop, Debian 13 has set aside 50% of ram for /tmp usage. /tmp is implemented using tmpfs file system according to documentation. The man page for tmpfs says that if it runs out of space it will spile over into swap area. I thought 8GB was excessive so I modified the default 50% to 1 GiB, using: sudo systemctl edit tmp.mount command. After tht I tried to create a 4 GB file on /tmp: dd if=/dev/urandom of=/tmp/testfile bs=4M count=1000 after writing 1 GB it failed with a message that it ran out of space Now, does anyone have an explanation of this ? It would appear it should transparently spill over into the swap area which is configured as 32GB on an LVM2 volume. Can it be fixed somehow so it works as advertised with spilling over to swap, and if yes, how ?

502 Bad Gateway nginx/1.26.0 (Ubuntu)

25 December 2025 @ 1:54 pm

I have 6$ dollar droplet on Digitalocean and I deployed on it backend(nodejs), frontend(nextjs) and mysql database. The app was working fine for 5 months now and I stopped using for a month and now I get 502 Bad Gateway nginx/1.26.0 (Ubuntu). NB: I'm the only one using the website. This is an image that shows cpu & memory usage in my droplet.

Dovecot - Amavis - Spamassassin - why is Hits empty in this perticular case

25 December 2025 @ 12:20 pm

I got an obvious spammail in my mailbox. It even send the mail supposedly in my name... Why isn't this mail filtered out? My setup filters most of the span nicely. (sorry if I wasn't consistent in anonymizing the info...) Mail headers: Return-Path: <[email protected]> X-Original-To: [my e-mail adress] Delivered-To: [my e-mail adress] Received: from [hostname1] ([hostname1] [xxx.xxx.xxx.xxx]) by [FWDN2] (Postfix) with ESMTP id [id number] for [my e-mail adress]; Wed, 24 Dec 2025 16:19:03 +0100 (CET) X-Virus-Scanned: Debian amavis at [domain name] Received: from [FQDN2 ([xxx.xxx.xxx.xxx]) by [hostname3 ([FQDN3] [xxx.xxx.xxx.xxx]) (amavis, port 10024) with ESMTP id [id number 2] for [my e-mail adress]; Wed, 24 Dec 2025 16:19:03 +0100 (CET) Received-SPF: Softfail (mailfrom) identity=mailfrom; client-ip=38.60.125.96; helo=infoo1.swiftmailservice.cfd; [email protected]; receiver=[my domain] Received: from infoo1.swiftmailservice.

Docker Context and `docker.example.com` in the output

25 December 2025 @ 9:56 am

I've added a Docker Context: $ docker context create server --docker "host=ssh://[email protected]" $ docker context use server and now when I try do build anything, it gives a weird error with docker.example.com in the output: $ docker compose build [+] Building 0.0s (0/0) Cannot connect to the Docker daemon at http://docker.example.com. Is the docker daemon running? Same thing happens when I use DOCKER_HOST: $ DOCKER_HOST=ssh://[email protected] docker ps Cannot connect to the Docker daemon at http://docker.example.com. Is the docker daemon running? Why can't it connect to Docker?

Intermittent file save errors over SMB after migrating to Windows Server 2022

25 December 2025 @ 7:01 am

Environment: Windows Server 2022 file server Clients: Windows 10 1607 and 1809 mixed (managed by WSUS) No DFS SMB file shares used by Office applications, line-of-business apps, and Explorer Multiple MFPs writing PDFs to the same SMB shares (fax forwarding, high frequency) Symptoms: Intermittent errors when saving files to SMB shares (e.g. "Access denied", "Cannot save file") Retrying the same operation usually succeeds Sometimes an error appears when creating a new folder, but the folder is actually created successfully This issue did not occur on Windows Server 2012 R2, but started after the file server was replaced in November 2025 with a fully patched Windows Server 2022 Standard system. What has been checked: NTFS and share permissions are correct Network connectivity is stable Since retrying works, ACL/permissio

Remove a line only if it is outside a blockinfile block

25 December 2025 @ 12:43 am

Using Ansible, I am looking to add or update multiple entries to a postfix main.cf file. I want to use ansible.builtin.blockinfile since some of my entries will be multiline and/or have comments. Is there a way to remove lines only if they are outside of a blockinfile block? Example This example is simplified; in my actual situation, I need to replace ~7 entries. Original main.cf: mynetworks = 127.0.0.0/16 relayhost = [smtp1.example.com] smtpd_client_restrictions = permit_mynetworks,reject Desired (Blockinfile markers are acceptable of course, and the order of lines is not important): relayhost = [smtp1.example.com] mynetworks = cidr:/etc/postfix/mynetworks.cidr hash:/etc/postfix/mynetworks.fqdn smtpd_client_restrictions = permit_mynetworks,

Reverse Proxy supporting UDP with Proxy Protocol headers

24 December 2025 @ 11:21 pm

I want to host a Minecraft server on my home PC for both Java Edition (TCP) and Bedrock Edition (UDP). Because my home connection is behind CGNAT, I cannot expose the server directly, so I’m using a very low-resource VPS as a public entry point and forwarding traffic to my PC over Tailscale. The basic setup works using a simple reverse proxy (NGINX with the stream module), but there is a major limitation: on the backend server, all player connections appear to come from the VPS IP, not from the players’ real IP addresses. I learned that this can be solved for TCP by enabling PROXY protocol, which prepends the original client IP to the connection. With NGINX acting as the proxy and the backend configured to accept PROXY protocol, this works perfectly for Minecraft Java Edition (TCP). However, Minecraft Bedrock Edition uses UDP, and this is where I’m stuck: NGINX only supports PROXY protocol over TCP, not UDP. I tested HAProxy Community Edition

DeepWiki-Open Docker image ignores OPENAI_API_KEY from .env, no LLM models loaded

24 December 2025 @ 11:05 am

I’m deploying DeepWiki-Open using Docker Compose on a RHEL 9 server and the application starts correctly, but no LLM models are available in the UI, preventing wiki generation. Environment OS: RHEL 9 Docker + Docker Compose Image: deepwiki-open-deepwiki:latest Issue UI error: “Failed to load model configurations. Using default options.” Model Provider and Model Selection dropdowns are empty No LLM backends appear to be registered Logs Container logs show: OPENAI_API_KEY is not set GOOGLE_API_KEY is not set This indicates the container is not receiving environment variables from the .env file, despite documentation suggesting .env support. Result DeepWiki UI and backend are operational Model configuration never loads Wiki generation is impossible Question What is the correct way to pass API keys (OpenAI or compatible providers) to the DeepWiki-Ope

Error 0x80070001 When Deploying 3rd Party MDR Agent Through Intune Apps

23 December 2025 @ 10:43 pm

I am trying to utilize uploading a Win32 app to Intune to deploy to Intune-joined devices. When the test device receives the laptop the install fails with the following event ID logs. Event ID:1040, beginning a windows installer transactionEvent ID:11708, Installation failedEvent ID:1033, Installation success or error status: 1603 Intune reports device install status details as Status:Failed, Status details:0x80070001 The app package is configured as instructed by the app's documentation. Research on the install error looks to be permission based. This seems odd to me as a the intune manager should have full control, correct? Research on the status code given by Intune only finds things related to VMs and images. This is not relevant to this issue because the te

Split VPN per user with wireguard and policy based routing

23 December 2025 @ 10:24 pm

There is a box that is connected to a vpn via a wireguard link. But I would like to implement split VPN setup such as that traffic from specific system user processes goes via the vpn. All other traffic should be routed via the default internet gateway. Traffic from user vpner should be routed via the vpn network. What I already have that does not seem to work : /etc/wireguard/vpn.conf [Interface] PrivateKey = xxx FwMark = 0x7148 #29000 Address = 10.9.0.2/32 Table = 29000 PostUp = /etc/wireguard/ws.sh %i PostUp PreDown = /etc/wireguard/ws.sh %i PreDown [Peer] PublicKey = xxx AllowedIPs = 0.0.0.0/0, ::/0 Endpoint = xxx /etc/wireguard/ws.sh #!/bin/bash set -e IF=$1 MODE=$2

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