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 Payment Cryptography Achieves Cartes Bancaires Approval

11 February 2026 @ 9:00 pm

Today, AWS Payment Cryptography has become one of the first cloud-based payment cryptography services to obtain approval from Groupement des Cartes Bancaires (CB), France's national card payment network. This CB approval, combined with existing compliance credentials, enables customers to run payment workloads in AWS while helping customers maintain CB compliance. Organizations such as acquirers, payment facilitators, networks, switches, processors, and issuing banks that are moving workloads to the cloud can rely on AWS Payment Cryptography’s CB approval as part of their compliance frameworks. Organizations processing card payments typically require Hardware Security Modules (HSM) to perform cryptography in a compliant manner. AWS Payment Cryptography provides equivalent functionality in an elastic, scalable service, eliminating the operational burden of procuring a

Amazon Connect launches after contact work timeout configuration for tasks, chats, and emails

11 February 2026 @ 8:14 pm

Amazon Connect now supports the ability to configure agents with after contact work timeout settings for chat, tasks, emails, and callbacks. After contact work timeouts improve agent efficiency by time-boxing the amount of time each agent can spend doing after contact work for a contact, before being automatically set back to a ready state so they can be offered another contact. You can now enable these settings at the channel level for each agent to further optimize how agents spend their time. For example, you could choose to enable a shorter ACW timeout for emails while maintaining a longer ACW timeout for voice contacts to give agents a cool-down period between phone calls to prepare for the next customer interaction.

Amazon Connect launches auto-accept for tasks, chats, and emails

11 February 2026 @ 8:00 pm

Amazon Connect now supports the ability to configure agents with auto-accept settings for chat, tasks, emails, and callbacks. When auto-accept is enabled, incoming contacts are automatically connected to available agents instead of waiting on the agent to manually accept or reject each contact, ensuring that customers receive timely assistance. Previously, these settings were available only for inbound voice contacts. You can now enable these settings at the channel level for each agent to further optimize how agents spend their time. For example, you could choose to enable auto-accept for tasks while keeping auto-accept disabled for voice calls to ensure that the agent is connected to a voice call only once they indicate they are ready.

Amazon Aurora DSQL is now available in additional AWS Regions

11 February 2026 @ 7:30 pm

Amazon Aurora DSQL is now available with single-Region clusters in Asia Pacific (Melbourne), Asia Pacific (Sydney), Canada (Central), and Canada West (Calgary). Aurora DSQL is the fastest serverless, distributed SQL database that enables you to build always available applications with virtually unlimited scalability, the highest availability, and zero infrastructure management. It is designed to make scaling and resilience effortless for your applications and offers the fastest distributed SQL reads and writes. With this launch, Aurora DSQL is available in the following AWS Regions: US East (N. Virginia), US East (Ohio), US West (Oregon), Canada (Central), Canada West (Calgary), Asia Pacific (Melbourne), Asia Pacific (Sydney), Asia Pacific (Osaka), Asia Pacific (Tokyo), Asia Pacific (Seoul), Europe (Ireland), Europe (London), Europe (Frankfurt), and Europe (Paris). Get s

Amazon MSK now supports broker logs on Express Brokers

11 February 2026 @ 7:23 pm

Amazon Managed Streaming for Apache Kafka (MSK) now supports broker logs for Express brokers at no additional cost. With access to broker logs, you can troubleshoot client connectivity and availability issues and get insights into broker behavior during rebalances or fail-overs. You can also easily integrate Kafka operational telemetry into existing observability pipelines using pre-built integrations with Amazon CloudWatch Logs and Amazon S3. Broker Logs are available for both new and existing Express brokers . You can enable them from the Amazon MSK Console or AWS CLI. To learn how to setup broker log delivery, see the Amazon MSK broker logs documentation. MSK Express brokers are designed to deliver up to three times more throughput per broker, scale up to 20 times f

AWS Elastic Beanstalk now supports GitHub Actions for automated application deployment

11 February 2026 @ 7:00 pm

AWS Elastic Beanstalk now enables you to use GitHub Actions to automatically deploy web applications when you push code or configuration changes to your GitHub repository, streamlining your continuous integration and continuous deployment (CI/CD) pipeline for scalable web applications. GitHub Actions allow development teams to automate their software delivery process, enabling CI/CD workflows that automatically build, test, and deploy code changes whenever developers push updates to their repositories. Teams deploying to Elastic Beanstalk can now benefit from enhanced automation that handles deployment package creation, S3 uploads, version management, and environment monitoring. The new GitHub Action provides a simplified way to deploy applications to Elastic Beanstalk using declarative configuration in GitHub Actions workflows

AWS Lake Formation enhances cross-account sharing

11 February 2026 @ 6:00 pm

AWS Lake Formation now enhances cross-account sharing, allowing you to share hundreds of thousands of tables across accounts. You can centralize permissions in Lake Formation for resources such as catalogs, databases, and tables for multi-account analytics environments that require fine-grained access controls at scale. You can share Data Catalog resources (databases, tables, and columns) with external IAM principals, AWS accounts, AWS Organizations, and organizational units (OUs). Lake Formation sets up a single AWS Resource Access Manager resource share for an unlimited number of tables to another account, eliminating previous resource association limits per resource type. To get started, upgrade to cross-account version 5 through the Lake Formation console or API. Any new cross-account permission grants will automatically use wildcard patterns in the AWS Resource Access Manager resource shares instead of individual resource associations. All existing cross-account shares

Amazon EC2 C8i and C8i-flex instances are now available in Europe (Paris), Canada (Central), and US West (N. California) regions

11 February 2026 @ 5:00 pm

Starting today, Amazon Elastic Compute Cloud (Amazon EC2) C8i and C8i-flex instances are available in the Europe (Paris), Canada (Central), and US West (N. California) regions. These instances are powered by custom Intel Xeon 6 processors, available only on AWS, delivering the highest performance and fastest memory bandwidth among comparable Intel processors in the cloud. These C8i and C8i-flex instances offer up to 15% better price-performance, and 2.5x more memory bandwidth compared to previous generation Intel-based instances. They deliver up to 20% higher performance than C7i and C7i-flex instances, with even higher gains for specific workloads. The C8i and C8i-flex are up to 60% faster for NGINX web applications, up to 40% faster for AI deep learning recommendation models, and 35% faster for Memcached stores compared to C7i and C7i-flex. C8i-flex are the easiest way to get price performance benefits for a majority of compute intensive workloads like web and application

Amazon RDS for MariaDB now supports community MariaDB minor versions 10.6.25, 10.11.16, 11.4.10, and 11.8.6

11 February 2026 @ 4:23 pm

Amazon Relational Database Service (Amazon RDS) for MariaDB now supports community MariaDB minor versions 10.6.25, 10.11.16, 11.4.10, and 11.8.6. We recommend that you upgrade to the latest minor versions to fix known security vulnerabilities in prior versions of MariaDB, and to benefit from the bug fixes, performance improvements, and new functionality added by the MariaDB community. You can leverage automatic minor version upgrades to automatically upgrade your databases to more recent minor versions during scheduled maintenance windows. You can also leverage Amazon RDS Managed Blue/Green deployments for safer, simpler, and faster updates to your MariaDB instances. Learn more about upgrading your database instances, including automatic minor version upgrades and Blue/Green Deployments, in the

Amazon DocumentDB (with MongoDB compatibility) is Now Available in the Europe (Zurich) Region

11 February 2026 @ 4:00 pm

Amazon DocumentDB (with MongoDB compatibility) is now available in the Europe (Zurich) region adding to the list of available regions where you can use Amazon DocumentDB. Amazon DocumentDB is a fully managed, native JSON database that makes it simple and cost-effective to operate critical document workloads at virtually any scale without managing infrastructure. Amazon DocumentDB is designed to give you the scalability and durability you need when operating mission-critical MongoDB workloads. Storage scales automatically up to 128TiB without any impact to your application. In addition, Amazon DocumentDB natively integrates with AWS Database Migration Service (DMS), Amazon CloudWatch, AWS CloudTrail, AWS Lambda, AWS Backup and more. Amazon DocumentDB supports millions of requests per second and can be scaled out to 15 low latency read replicas in minutes with no application downtim

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

SSHStalker botnet brute-forces its way onto 7,000 Linux machines

12 February 2026 @ 12:58 am

A newly discovered botnet is compromising poorly-protected Linux servers by brute-forcing weak SSH password login authentication. Researchers at Canada-based Flare Systems, who discovered the botnet, got into its staging server and believe at least 7,000 servers had been compromised by the end of January, half of them in the US. The botnet’s weapons include exploits for unpatched Linux vulnerabilities going back as far as 2009. The researchers describe the botnet, dubbed SSHStalker, as “a soph

Cisco extends AgenticOps model across networking, security, observability products

11 February 2026 @ 11:00 pm

At the Cisco Live EMEA event going on in Amsterdam this week, Cisco unveiled a range of updates across its networking and security portfolio that are aimed at helping customers tap agentic AI technologies to more effectively run their enterprise infrastructure. “Agentic AI orchestrates workflows, moves data, communicates with other agents, and makes decisions autonomously. This represents a fundamental shift in how

Top network and data center events 2026

11 February 2026 @ 8:50 pm

Ready to travel to gain hands-on experience with new networking and infrastructure tools? Tech conferences – in person and virtual – give attendees a chance to access product demos, network with peers, earn continuing education credits, and catch a celebrity keynote or live entertainment. Check out our calendar of upcoming network, I&O, and data center conferences, and

Energy providers seek flexible load strategies for data center operations

11 February 2026 @ 8:10 pm

A survey of U.S. energy professionals shows how critical load flexibility and demand response (DR) programs are to business operations as electric grid demand intensifies. Respondents said that rapid expansion in data centers, AI computing, and commercial electrification are driving shifting capacity and reliability concerns from long-range planning to on

Nokia predicts huge WAN traffic growth, but experts question assumptions

11 February 2026 @ 4:25 pm

The latest Nokia Global network traffic report forecasts a big uptick in traffic owing to three converging forces, two of which include an enterprise focus: artificial intelligence and an expansion in industrial operations across the WAN. How much those assumptions match realities on the ground is up for discussion. Consumer-oriented traffic remains the largest share of global WAN traffic, and Nokia also sees large increases there as consumers shift to “more immersive, interactive and increasingly uplink-heavy uses.” Overall, the report predicts WAN traffic to increase between 300% and 700% through 2034, with video accounting for by

NetBrain’s new AI agents automate network diagnosis

11 February 2026 @ 4:04 pm

Network automation vendor NetBrain is getting an intelligence boost via human and artificial intelligence updates. The company had a busy 2025, delivering multiple releases that add AI capabilities to its platform and finalizing its acquisition by Blackstone. The momentum is continuing into 2026 with the NetBrain 12.3 release. The new version adds AI agents that can investigate n

IBM FlashSystems gain AI-assisted telemetry, analytics

11 February 2026 @ 3:17 pm

IBM is refreshing its FlashSystem lineup, expanding capacity in the all-flash storage portfolio and adding AI agent-powered data services that promise to automate manual and error-prone tasks. Big Blue rolled out three new FlashSystem boxes: the entry/edge level, 1U, 2.5 petabytes 5600; the 2U, 7.2 petabyte 7600 aimed at large, virtualized environments and analytics platforms; and the high-end, 11.8 petabyte 9600 for enterprises that need extreme performance and massive scalability. IBM says the boxes deliver up to 40% greater dat

Cisco: Latest news and insights

11 February 2026 @ 2:35 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 amps up Silicon One line, delivers new systems and optics for AI networking

10 February 2026 @ 8:22 pm

Cisco is significantly ratcheting up the speed of its Silicon One family with the introduction of a 102.4 Terabit/sec chip and switch family, and it’s adding advanced software features designed for customers that need to support serious AI clusters. The new Silicon One G300 is a 102.4 Tbps switching silicon. It includes a feature called Intelligent Collective Networking, which supports shared packet buffers, path-based load balancing, and proactive network telemetry to handle large-scale, bursty data center traffic, AI training, inference, and real-time agentic workloads. [ Related: 

Versa bolsters data protection, AI-powered operations in SASE upgrade

10 February 2026 @ 6:00 pm

Versa has added to the AI features of its flagship VersaONE Universal SASE Platform to better protect enterprise assets and help customers improve network and security operations. Built on the Versa Operating System, the VersaONE platform includes secure access service edge (SASE) elements such as SD-WAN, secure web gateway, cloud access security broker (CASB), zero trust network access (ZTNA), and firewall-as-a-service. Common platform capabilities include shared AI engines and a zero-trust foundation,

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Computer forensic tools and techniques used by investigators

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online community of new and seasoned Linux / Unix sysadmins.

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

DNS Filtering on Ubiquity UDM Pro

11 February 2026 @ 7:16 pm

I have a UDM Pro running UniFi OS 5.0.12 and Network 10.0.162 in a children's library. I have tried using the following DNS setup to force safe searches. It works for DuckDuckGo and Pixabay but not for Brave, Bing, Google or YouTube. . The results differ for the different systems: search.Brave.com will not load, and Bing, Google and Youtube default to non-filtered searches. Any thoughts on what am I missing here? enter image description here

Setting up process-based network routing with ip netns on remote server

11 February 2026 @ 4:20 pm

I would like to route all the network traffic of a specific executable through VPN, while at the same time route all other traffic through the default interface. The extra complication being that I am trying to do this remotely into a VPS server with a single NIC. I can not experiment at home because I only have a wireless interface and the guides I am following fail for wlan interfaces (Device does not allow enslaving to a bridge. Operation not supported). So, I am following this guide (https://gist.github.com/EnigmaCurry/2a199eb35f2bbf23d55ff50dbcc57959): ip link add name br0 type bridge ip link set br0 up But this command cuts me off from the server: ip link set eth0 master br0 On the other hand, this https://superuser.com/a/1516

Spamhaus is blocking my ip because of a HELO mismatch

11 February 2026 @ 2:07 pm

Spamhaus is blocking my mail servers (mail.die.de) ip 92.204.4.245. It says the HELO lookup doesn't match. According to spamhaus, my helo is "woelfer.de". And yes, that would be incorrect. However, my HELO is actually "mail.die.de". I just confirmed this in settings and i also used aboutmy.email, which also confirms HELO is "mail.die.de". (We have never sent any spam, our google spam rate is 0.00%). Any ideas what might be causing this?

Mod_security on Plesk - how to turn off a specific rule for a specific folder? [closed]

11 February 2026 @ 12:57 pm

PLESK obsidian 18.0.75 ModSecurity 2.9.12 Mod_security is coming back with a specific rule preventing form submitted by a page "editpage.php" to the save page "savepage.php". How can we turn off this specific rule in this specific admin' folder? It is a custom build admin area where page HTML of public pages are edited. Mod Security is now refusing to accept this claiming it an XSS attack although the two pages (edit and save) are in the same folder on the same domain. Mod security states: ModSecurity: Access denied with code 403 (phase 2). Match of "rx (?:body|content|description|post|desc|html_message|text)=" against "MATCHED_VAR" required. [file "/etc/httpd/conf/modsecurity.d/rules/comodo_free/07_XSS_XSS.conf"] [line "75"] [id "212800"] [rev "8"] [msg "COMODO WAF: XSS Attack Detected||www.domain.co.uk|F|2&quo

Install Composer under PHP 8.5

11 February 2026 @ 12:36 pm

I have installed Debian 13 and Frankenphp with PHP 8.5.2. Now I try to install Composer 2.9.5 on that system. That Composer version should be compatible with PHP 8.5. What ever I due, the Frankenphp PHP 8.5 version will always overwritten with 8.4 during the installation of Composer. Is there any way that Composer recognized the installed PHP 8.5 version?

"Failed to connect to system scope bus" after dnf update

11 February 2026 @ 11:22 am

I run a Rocky Linux 10 VM. Today I did a dnf update. After that the system behaves strange. I cannot shutdown -r now or reboot. Entering systemctl daemon-reload gives me: Failed to connect to system scope bus via local transport: Connection refused Looks like the DBus is damaged. I don't know which package is the guilty one, as very many packages are updated. Any ideas?

Debug an IPsec connection

11 February 2026 @ 11:19 am

I have a PFsense firewall that is rejecting authentication on a peer to peer IPsec. Why? Very hard to tell if you don't know where to look. parsed IKE_AUTH response 1 [ N(AUTH_FAILED) ] is all I have. The other side can provide only the parameters, and I need to provide them with what's wrong. Can this be done? How do I find out why it's doing that? I need to decrypt. How do I decrypt? What's an SK_ei? What's an SPI? I see the https://docs.strongswan.org/docs/latest/plugins/save-keys.html "plugin". Plugin to what? Where? I found that adding this to the plugins section in /var/etc/ipsec/strongswan.conf (What's configuration doing hiding in /var?) should get me somewhere: save-keys { load = yes esp = yes ike = yes wireshark_keys = /root/.config/wireshark

NTPd stopped working

11 February 2026 @ 8:42 am

I found a strange behaviour by NTP synchronization. That NTP server worked fine until now when some clients reported a wrong date/time set to today but in year 2000. After investigation I found the issue in the restriction in /etc/ntp.conf file. I had this restriction policy: restrict default notrap nomodify nopeer To solve this issue I had to remove nopeer from this restriction rule. What I'm trying to understand is why that worked correctly in past, but not now. I know that NTPd is pretty obsolete, but the migration to a new NTP server (chronyd based) is going slow so I have to maintain also the old NTPd server. Did anyone had any similar issues?

Roundcube or postfix - send email from any From:

10 February 2026 @ 3:05 pm

I have my own postfix which is sending emails through some external service. This external service is Roundcube but with one address "from" configured (account, not alias). I have already catch-all service which moves all emails coming to my domain to one account, but need the other way - to send as any [email protected]. Is it possible to configure that with postfix on my side or in roundcube from the external service but not creating aliases nor new accounts?

Configuring PFSense IPsec between two vms on two different networks [migrated]

10 February 2026 @ 1:13 am

I am a beginner in network and I'm building in my home lab a simulation that I have to deal in the future at my real job. So basically I have two different networks: On Oracle Virtualbox LAN A:172.16.10.1/24 host A - 172.16.10.10 NIC1: LAN Segment FW A pfsense - 172.16.10.1 NIC1: Bridge, NIC2:LAN Segment On VMWare LAN B: 192.168.20.1/24 host B - 192.168.20.101 NIC1: Lan Segment FW B pfsense - 192.168.20.1 - NIC1: NAT, NIC2: LAN Segment So the topology would be something like that: HostA -> fwA (bridge) -> wanA -> IPSEC -> wanB -> fwB (NAT) -> HostB and the inverse way too But in all my attempts, I was no able to connect through this VPN, I configured the IPSec correctly (I guess) on both sides fwA Config

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Cheap dedicated server hosting

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