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.

AWS WAF is now available in the AWS Asia Pacific (New Zealand) Region

30 December 2025 @ 6:00 pm

Starting today, AWS WAF is available in the AWS Asia Pacific (New Zealand) Region. AWS WAF is a web application firewall that helps you protect your web application resources against common web exploits and bots that can affect availability, compromise security, or consume excessive resources. With AWS WAF, you can control access to your content. Based on conditions that you specify, such as the IP addresses that requests originate from or the values of query strings, your protected resource responds to requests either with the requested content, with an HTTP 403 status code (Forbidden), or with a custom response. To see the full list of regions where AWS WAF is currently available, visit the AWS Region Table. For more information about the service, visit the

AWS launches simplified import of CloudTrail Lake data in Amazon CloudWatch

30 December 2025 @ 2:00 pm

Today, AWS launches simplified import of CloudTrail Lake data in Amazon CloudWatch, a data management and analytics service that allows you to unify operational, security, and compliance data across your AWS environment and third-party sources. With this launch, you can now import your historical CloudTrail Lake data into CloudWatch with a few steps enabling you to easily consolidate operational, security, and compliance data in one place. In CloudWatch, you simply specify the CloudTrail Lake event data store (EDS), and the date range to initiate import of your CloudTrail data. Simplified import of CloudTrail Lake data is supported via the AWS console, CLI, and SDK. While simplified import of CloudTrail Lake data is available at no additional cost, you incur CloudWatch fees based on custom logs pricing. To learn more about simplified import of CloudTrail Lake data and supported AWS regions, visit the

Amazon Connect dashboards now support filtering metrics based on custom business dimensions

29 December 2025 @ 3:00 pm

Amazon Connect dashboards now support filtering metrics based on custom business dimensions such as business divisions, product lines, or customer segments. Using predefined attributes, you can create business dimensions to filter metrics helping you customize the dashboards based on your unique business need. For example, if your queue handles contacts across product lines, you can filter metrics by product line to compare handle times and determine where agents need product training. Amazon Connect dashboards are available in all AWS commercial and AWS GovCloud (US-West) Regions where Amazon Connect is offered. To learn more about dashboards, see the Amazon Connect Administrator Guide. To learn more about Amazon Connect, the AWS cloud-based contact center, please

Amazon OpenSearch UI supports CMK and increased metadata size

29 December 2025 @ 8:00 am

Amazon OpenSearch Service now supports AWS KMS customer managed keys (CMKs) and increased size for OpenSearch UI metadata. Amazon OpenSearch UI is a managed service for dashboarding and operational analytics that provides a unified view across multiple data sources, including OpenSearch domains and collections, Amazon S3, Amazon CloudWatch, and AWS Security Lake. You can now create new OpenSearch UI applications with metadata encrypted with your own CMKs, helping organizations meet regulatory and compliance requirements. This launch also increases the metadata size limit for saved objects in OpenSearch UI, enabling you to create and store complex queries, extensive visualizations, and large-scale dashboards. CMK support and increased metadata size are available in all regions that OpenSearch UI is available.

Amazon Connect expands automated agent performance evaluations to 5 additional languages

26 December 2025 @ 6:00 pm

Amazon Connect now automates agent performance evaluations in Portuguese, French, Italian, German, and Spanish using generative AI. Managers define custom evaluation criteria in natural language and receive AI-generated evaluations with justifications in their preferred language. Performance evaluations also supports cross-language evaluation and can complete assessments in English, even when the conversation is in another language. This enables multilingual contact centers to use a standardized evaluation framework across languages. This feature is supported in 8 AWS regions including US East (N. Virginia), US West (Oregon), Europe (Frankfurt), Europe (London), Canada (Central), Asia Pacific (Sydney), Asia Pacific (Tokyo), and Asia Pacific (Singapore). For information about Amazon Connect pricing, please visit our pricing page. To learn mor

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

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

Nvidia licenses Groq’s inferencing chip tech and hires its leaders

30 December 2025 @ 3:14 pm

Nvidia has licensed intellectual property from inferencing chip designer Groq, and hired away some of its senior executives, but stopped short of an outright acquisition. “We’ve taken a non-exclusive license to Groq’s IP and have hired engineering talent from Groq’s team to join us in our mission to provide world-leading accelerated computing technology,” an Nvidia spokesman said Tuesday, via email. But, he said, “We haven’t acquired Groq.” Groq designs and sells chips optimized for AI inferencing. These chips, which Groq calls language processing units (LPUs), are lower-powered, lower-priced devices than the GPUs Nvidia designs and sells, which these days are

SoftBank expands AI infrastructure ambitions with $4B DigitalBridge acquisition

29 December 2025 @ 6:53 pm

SoftBank Group has announced plans to acquire DigitalBridge Group, an asset manager specializing in digital infrastructure investments such as data centers, cell towers, and fiber networks, in a deal valued at $4 billion. The acquisition underscores SoftBank’s aggressive strategy to dominate the next wave of AI infrastructure globally. SoftBank said the acquisition is part of its mission to realize Artificial Super Intelligence (ASI), a vision that goes beyond current AI capabilities. “Achieving that vision requires breakthroughs

Top Intel stories of 2025

29 December 2025 @ 10:00 am

It’s been a roller coaster of a year for Intel, marked by the arrival of a new chief, new Xeon processors, select product divestitures, and sizable layoffs. Under the leadership of CEO Lip-Bu Tan, who took the helm in March, Intel delivered the first Xeon built on its next-generation 18A process node, navigated the divestiture of its FPGA business, and upped its efforts to restructure the company and regain market leadership amid strengthening competition. It also inked a $5 billion partnership with Nvidia and saw the U.S. government take a 10% stake in the company. Here are our top stories about Intel in 2025, organized in five sections:

Top 10 Nvidia stories of 2025 – From data center to AI factory

26 December 2025 @ 5:49 pm

2025 was not just about faster GPUs. It was about the fundamental re-architecture of the enterprise data center from a storage/retrieval hub to a manufacturing plant for intelligence – or the AI factory. Nvidia CEO Jensen Huang set the stage in May at Dell Technologies World 2025: “AI is here — this is unquestionably the single biggest platform shift… This is a once in a lifetime opportunity — in the last 60 years, this is the biggest reinvention that you and I have seen.” Here’s a look back at the top Nvidia storeis of 2025. 1. The rise of the AI factory

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

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

Is it possible to see all IPs currently in use in a GCP subnetwork?

30 December 2025 @ 6:16 pm

Under subnet details I see this: enter image description here Does GCP show you what all the individual private IPs are and are allocated to? Not just ones I've reserved but ALL the IP addresses currently in use. This would include serverless stuff launched inside the subnetwork, etc. Network intelligence also only shows me percentage used of IP range used not list of individual addresses. Is there not a source of truth API call that returns all IP addresses currently in use in a subnetwork?

Do IIS Application Pool Advanced Settings Changes Require an IISRESET?

30 December 2025 @ 6:19 am

I’m planning to change some Advanced Settings (tuning parameters) of an IIS Application Pool. Do these changes require a full iisreset, or is it sufficient to recycle / restart the related Application Pool for the settings to take effect?

Why is `sshfs` unable to resolve hostname when using short host name from ~/.ssh/config?

29 December 2025 @ 11:54 pm

When using the short hostname from ~/.ssh/config sshfs says it can't resolve the hostname sudo sshfs -o debug,sshfs_debug,loglevel=debug,allow_other,default_permissions,compression=yes,cache=yes,auto_cache,reconnect,ServerAliveInterval=15,ServerAliveCountMax=3 remote-admin:/home/remote/DocumentsShare /home/local/DocumentsShare SSHFS version 3.7.3 executing <ssh> <-x> <-a> <-oClearAllForwardings=yes> <-ologlevel=debug> <-ocompression=yes> <-oServerAliveInterval=15> <-oServerAliveCountMax=3> <-2> <remote-admin> <-s> <sftp> debug1: OpenSSH_10.0p2 Debian-7, OpenSSL 3.5.4 30 Sep 2025 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Reading configuration data /etc/ssh/ssh_config.d/20-systemd-ssh-proxy.conf debug1: /etc/ssh/ssh_config line 21: Applying options for * ssh: Could not resolve hostname remote-admin: Name or service not known read: Connection reset by peer

ceph-volume lvm prepare ends up with error -11

29 December 2025 @ 5:42 pm

I'm trying to add OSDs to my Ceph installation. There is a clean (no partitions, no LVM, no GPT) M.2 SSD /dev/nvme0n1 attached to each node. After having solved numerous issues with ceph-volume lvm prepare (missing keyfile, ceph-osd in wrong directory etc.), I ended up with a message saying, Was unable to complete a new OSD, will rollback changes (without any details), and error -11 at the very end of the procedure. Here is the whole output: mixtile@blade3n1:~$ sudo ceph-volume lvm prepare --data /dev/nvme0n1 Running command: /usr/bin/ceph-authtool --gen-print-key Running command: /usr/bin/ceph-authtool --gen-print-key Running command: /usr/bin/ceph --cluster ceph --name client.bootstrap-osd --keyring /var/lib/ceph/bootstrap-osd/ceph.keyring -i - osd new 7823b3e8-040f-469f-a190-25e7ae58f56d Running command: vgcreate --force --yes ceph-35f55425-c7a8-4fa1-bda8-8b2358f2eba5 /dev/nv

Kerberos Keytable missing/not writable

29 December 2025 @ 4:01 pm

I am recently trying to set up a Kerberos-5 service on my latest Debian Trixie server. I have done so years ago, using this Howto and used it this time, too. I used APT package manager to install packages krb5-admin-server and krb5-kdc sudo apt-get install krb5-admin-server krb5-kdc Following the above mentioned script, everything went smooth, until I tried to export a host principal from the (local) server to the (local) machine, as described in Section "Installing kerberized services" Connecting the Kerberos server was no problem, neither creating the principal. But exporting the principal gave an error message, that kadmin

Create new TLD or partition in ApacheDS

29 December 2025 @ 12:23 pm

I have installed ApacheDS 2.0.0 on an Oracle 9 system and am trying to configure it for my setup. It configures a default TLD of example.com with multiple OUs and other items below it. I want to create a fresh TLD: mydivision.mycompany.myorg The help and blogs point to older versions that used XML configuration files. Can someone kindly point me to a how-to for this version? The Linux server is remote and does not have GNome. I am using Apache Directory studio on my Windows PC. I also have SSH connectivity with sudo privilege. BTW, if I select Root DSE and create a new entry from scratch using domain class and specify dc=myorg as the dn, I get an error: LDAP result code 32 - noSuchObject NO_SUCH_OBJECTL failed for MessageType: ADD_REQUEST Today: I added a new partition ads-partitionId: mydivision and ads-partitionSuffix: dc=mydivision,dc=mycompany,dc=myorg, based on ads-partitionId: example. Then, I add a context entry named dn

Linux policy routing VLAN -> OpenVPN tun0 not working

27 December 2025 @ 5:55 pm

OS: Ubuntu 20.04 OpenVPN client (tun0): 10.8.0.0/24 LAN: eth0 -> ISP local (must stay default) VLAN20: vlan20 -> 192.168.80.0/24 (gateway 192.168.80.1) Goal: Only traffic from 192.168.80.0/24 must go through OpenVPN (tun0). eth0 must continue using local ISP. my local network Current state: VLAN20 is reachable locally tun0 is up and reachable net.ipv4.ip_forward = 1 policy routing breaks connectivity from VLAN20 Routing policy database: # ip rule 0: from all lookup local 100: from 192.168.80.0/24 lookup vlan20vpn 32766: from all lookup main 32767: from all lookup default Routing tables: #ip route default via 192.168.0.1 dev eth0 proto dhcp src 192.168.0.50 metric 100 10.8.0.0/24 dev tun0 proto kernel scope link src 10.8.0.10 1

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

What’s the best NGINX “redirect” solution from the following options?

22 December 2025 @ 4:36 pm

NGINX doesn’t do Apache-style redirects. We want to replace these three URL queries "/grid/grid.html" and "grid.html" "grid/grid.html" (two local internal links) with just "/grid/". We have separate domain-specific config files inside "/etc/nginx/sites-available", and use CertBot for SSL. The RegEx in the examples below captures all the URL variations listed above. But which of these two is best practice: a location block inside the existing server block: server { ... location ~ ^(((/?)grid/)?grid.html) { return 301 $scheme://grid/; # OR https://grid/; } ... } add a rewrite block inside the existing server block, using the site root: server { ... rewrite ^(((/?)grid/)?grid.html) /grid/ last; return 403; ... } When updating the cert, Cer

Mysql / Mariadb Federated Table Creation Statement Truncating Host Name

18 December 2025 @ 9:23 pm

I am attempting to create a federated table on a mariadb host at 192.168.254.118 with a mysql server on 192.168.254.185. I can connect to 192.168.254.185 from 192.168.254.118 with no problem using the same credentials, but whenever I try to create a federated table with this src: CONNECTION='mysql://user:[email protected]/database/table' No matter what I do, either a connection string like above or using a "CREATE SERVER" statement I keep getting the same error: ERROR 1434 (HY000): Can't create federated table. Foreign data src error: database: 'database' username: 'user' hostname: '192.168 Note that the error itself doesn't have a closing single quote on it. I've tried using an IP address and a hostname.local and no matter what I do it always lists the same error with the hostname cut off after about 6-8 characters. Versions: 192.168.254.118: mariadb from 12.1.2-MariaDB,

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