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.

Amazon CloudWatch introduces organization-wide EC2 detailed monitoring enablement

16 March 2026 @ 11:10 pm

Amazon CloudWatch now allows customers to automatically enable Amazon Elastic Compute Cloud (EC2) detailed monitoring across their AWS Organization. Customers can create enablement rules in CloudWatch Ingestion that automatically enable detailed monitoring for both existing and newly launched EC2 instances matching the rule scope, ensuring consistent metrics collection at 1-minute intervals across their EC2 instances. EC2 detailed monitoring enablement rules can be scoped to the whole organization, specific accounts, or specific resources based on resource tags to standardize the configuration across EC2 instances. For example, the central DevOps team can create an enablement rule to automatically turn on detailed monitoring for EC2 instances with specific tags, e.g., env:production, and ensure Auto Scaling policies respond quickly to changes in instance utilization. CloudWatch's auto-enablement capability is available in all AWS commercial regions. Detailed monitori

Amazon CloudWatch Logs now supports log ingestion using HTTP-based protocol

16 March 2026 @ 10:04 pm

Amazon CloudWatch Logs now supports HTTP Log Collector (HLC), ND-JSON, Structured JSON and OTEL for sending logs using HTTP-based protocol with bearer token. With this launch, customers can ingest logs where AWS SDK integration is not feasible, such as with third-party or packaged software. The new endpoints are: HTTP Log Collector (HLC) Logs (https://logs .<region>.amazonaws.com/services/collector/event) — for JSON events, ideal for migrating existing log pipelines.  ND-JSON Logs (https://logs.<region>.amazonaws.com/ingest/bulk) — for newline-delimited JSON, where each line is an independent log event. Perfect for high-volume streaming and bulk log ingestion.  Structured JSON Logs (https://logs .<region>.amazonaws.com/ingest/json) — Send a single JSON object or a JSON array of objects. OpenT

SageMaker HyperPod now supports idle resource sharing for dynamic cluster utilization

16 March 2026 @ 7:38 pm

Amazon SageMaker HyperPod task governance now supports dynamic resource sharing, allowing teams to borrow unallocated compute capacity in HyperPod clusters beyond their guaranteed quotas. Administrators can also configure borrow limits for specific resource types, such as accelerators, vCPU, or memory, to ensure fair distribution across teams. Administrators running shared compute clusters for generative AI workloads often face underutilization challenges. When data scientists do not fully consume their allocated quotas, expensive compute instances remain idle. Idle resource sharing solves this by automatically identifying unallocated cluster capacity and making it available for teams to borrow on a best-effort basis. HyperPod task governance monitors your cluster state and automatically recalculates borrowable resources when instances and compute quota policies change, eliminating manual configuration. Eligible instances that are in a ready and schedulable state, including

Amazon Neptune now supports reading S3 data using openCyper

16 March 2026 @ 7:00 pm

Amazon Neptune now supports reading data from Amazon S3 within openCypher queries. Through the new `neptune.read()` procedure, customers now have an additional option of federating with external data stored in S3 versus needing to load data into Neptune. Organizations using Neptune for graph analytics can now dynamically incorporate S3-stored data without the traditional multi-step workflow requirements. Key use cases include real-time graph analytics that combine S3 data with existing graph structures, dynamic node and edge creation from external datasets, and complex graph queries requiring external reference data. The procedure supports comprehensive data types including standard and Neptune-specific formats such as geometry and datetime, while maintaining security through the caller's IAM credentials. Read from S3 is available in all regions where Amazon Neptune Database is currently offered. To l

Amazon Timestream for InfluxDB 3 Now Supports Expanded Multi-Node Cluster Configurations

16 March 2026 @ 6:20 pm

Amazon Timestream for InfluxDB now supports expanded multi-node cluster configurations for InfluxDB 3 Enterprise edition, enabling you to scale clusters up to 15 nodes for demanding production workloads requiring high read throughput and high availability. With this launch, you can now configure clusters with up to 15 nodes total, with one to four writer/reader nodes for data ingestion and queries, zero to 13 dedicated reader-only nodes for scaling query performance, plus a dedicated compactor node. This enables you to optimize for specific workload patterns. For example, you can create a dedicated reader-only nodes to handle read-heavy workloads such as dashboards, reporting, and analytical queries without impacting write performance. All Multi-node deployments distribute workloads across multiple nodes in different Availability Zones for enhanced fault tolerance and high availability With this release, you can now add and remove nodes from all Enterprise clusters

Announcing AWS Partner Central agents to accelerate co-sell

16 March 2026 @ 5:04 pm

Today, AWS announces the general availability of AWS Partner Central agents, new AI-powered capabilities designed to accelerate partner co-selling with AWS. Built on Amazon Bedrock AgentCore, these agentic capabilities work alongside partner sales teams to shorten sales cycles and simplify funding access. AWS Partners can engage with these agentic capabilities directly in the console or programmatically through Model Context Protocol (MCP), enabling sales teams to access from within their own customer relationship management (CRM) systems. With AWS Partner Central agents, partner teams get pipeline insights, tailored sales plays, and next-step recommendations on demand, so they know where to focus and what to do next. Partner sales teams can share meeting transcripts, notes, or emails with agents that automatically populate fields and advance deals, so they stay focused on selling, not data entry. Agents recommend funding at the opportunity level, highlight eligibility gaps,

Amazon SimpleDB now supports exporting domain data to Amazon S3

16 March 2026 @ 5:00 pm

Amazon SimpleDB now supports exporting domain data directly to Amazon S3 buckets in standard JSON format. Exports run in the background with no impact on database performance, making it simple to migrate data to other systems or meet data archival requirements. The export tool offers features including cross-region and cross-account support, multiple encryption options, and flexible S3 bucket configuration. Key use cases include migrating data for long-term archival or compliance purposes. The tool provides three new APIs (StartDomainExport, GetExport, and ListExports) with built-in rate limiting of 5 exports per domain and 25 per account within 24 hours. There is no charge to use this tool. However, standard data transfer charges apply.   The export tool is available in all regions where Amazon SimpleDB is available. You can get started with the export tool by using the AWS API or CLI. For more information, see the 

Amazon Connect now enables agents to forward email contacts to external email addresses

16 March 2026 @ 3:45 pm

Amazon Connect now enables agents to forward email contacts to external email addresses and distribution lists directly from the Agent workspace and Contact Center Panel. When an email is forwarded, agents still retain ownership and complete communication trail of the original contact. This makes it easy for your agents to seamlessly loop in back-office teams, subject matter experts, partners, and other stakeholders, while remaining a single consistent point of contact for your customers. Amazon Connect email is available in the US East (N. Virginia), US West (Oregon), Africa (Cape Town), Asia Pacific (Seoul), Asia Pacific (Singapore), Asia Pacific (Sydney), Asia Pacific (Tokyo), Canada (Central), Europe (Frankfurt), and Europe (London) regions. To learn more and get started, please refer to the help

Amazon Bedrock AgentCore Runtime now supports the AG-UI protocol

13 March 2026 @ 9:51 pm

Amazon Bedrock AgentCore Runtime now supports the Agent-User Interaction (AG-UI) protocol, enabling developers to deploy AG-UI servers that deliver responsive, real-time agent experiences to user-facing applications. With AG-UI support, AgentCore Runtime handles authentication, session isolation, and scaling for AG-UI workloads, allowing developers to focus on building interactive frontends for their agents. AG-UI is an open, event-based protocol that standardizes how AI agents communicate with user interfaces. It complements the existing Model Context Protocol (MCP) and Agent-to-Agent (A2A) protocol support in AgentCore Runtime. Where MCP provides agents with tools and A2A enables agent-to-agent communication, AG-UI brings agents into user-facing applications. Key capabilities include streaming text chunks, reasoning steps, and tool results to frontends as they happen; real-time state synchronization that can update UI elements such as progress bars and dashboards; structur

Amazon CloudWatch Application Signals adds new SLO capabilities

13 March 2026 @ 8:52 pm

Amazon CloudWatch Application Signals now offers three new console based capabilities for Service Level Objectives (SLOs): SLO Recommendations, Service-Level SLOs, and SLO Performance Report. CloudWatch Application Signals helps customers monitor and improve application performance on AWS. It automatically collects data from applications running on services like Amazon EC2, Amazon ECS, and Lambda. Previously, customers had to manually set SLO thresholds without data-driven guidance, often leading to misconfigured targets and alert fatigue. They also lacked visibility into overall service health across operations and had no way to track reliability trends over time or generate calendar periods performance reports. These new capabilities address each of those gaps, making it easier to set data-driven reliability targets, monitor overall service health, and identify reliability trends before they become incidents.

networkworld.com

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Information, intelligence and insight for Network and IT Executives.

Cato Networks unveils GPU-powered SASE with native AI security controls

17 March 2026 @ 12:55 pm

Cato Networks this week launched two additions to its secure access service edge (SASE) platform that the company says will address security challenges enterprises are facing now: protecting the AI tools end users rely on, while also using AI to defend against sophisticated threats. Cato Neural Edge deploys Nvidia GPUs across the

Chip wafer shortage will run through 2030 as AI demand overwhelms supply: SK Hynix chief

17 March 2026 @ 12:29 pm

The global shortage of semiconductor wafers will not ease before the end of the decade, SK Group Chairman Chey Tae-won said, delivering one of the most definitive long-range forecasts yet from the executive of the world’s leading supplier of high-bandwidth memory chips. Speaking to reporters on the sidelines of Nvidia’s GTC Conference in San Jose, California, Chey said the industry faces a wafer deficit of more than 20% and that at least four to five years of capacity building lie ahead before supply can match demand. “The current shortage could continue until 2030,” Chey said, according to a

Why Nvidia’s DGX Rubin NVL8 runs on Intel Xeon 6

17 March 2026 @ 11:22 am

Nvidia has selected Intel’s Xeon 6 processors as the host CPUs for its Nvidia DGX Rubin NVL8 systems. The DGX Rubin NVL8 is part of Nvidia’s next flagship AI system portfolio, designed to help companies accelerate agentic AI adoption. The DGX Rubin NVL8 systems are designed for large-scale AI workloads, combining eight Rubin GPUs with high-bandwidth memory and interconnects to support high-throughput inference and data movement. The systems are powered by Intel Xeon 6776P processors as host CPUs. The platform also uses NVLink technology to enable fast communication between GPUs for parallel processing. The Xeon 6 CPU will provide architectural continuity and scalability fo

Nvidia announces Vera Rubin platform, signaling a shift to full-stack AI infrastructure

17 March 2026 @ 10:35 am

Nvidia introduced its Vera Rubin platform, which combines compute, networking, and data processing into rack-scale deployments for large AI data centers, underscoring a shift in hyperscale environments toward more tightly integrated infrastructure. The company said the platform integrates its Vera CPU, Rubin GPU, NVLink 6 switch, ConnectX-9 SuperNIC, BlueField-4 DPU, and Spectrum-6 Ethernet switch, along with the newly added Groq 3 LPU, into a single system designed to operate as an AI supercomputer. The architecture is designed to support all stages of AI workloads, from large-scale training and post-training to real-time inference, and is aimed at so-called

Available’s $5B Project Qestrel aims to roll out 1,000 AI-ready edge data centers by year’s end

17 March 2026 @ 1:53 am

Hyperscaler data center projects are plagued by a host of issues: delayed time-to-market, capacity constraints, and supply chain issues. However, secure edge infrastructure provider Available Infrastructure aims to offer a different experience: A “nationwide fleet of cybersecure, private neocloud edge data centers.” Through a new $5 billion initiative, Project Qestrel, the company has an ambitious plan to bring 1,000 locations in 100 US cities and 30-plus states online by the end of this year. Each site will be equipped with high performance compute (HPC) infrastructure and AI inferencing capabilities, which the company says will bring sites online “in weeks to months, n

Cisco: Latest news and insights

17 March 2026 @ 1:49 am

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 extends its Secure AI Factory with Nvidia

16 March 2026 @ 9:41 pm

Cisco and Nvidia continue to develop integrated packages aimed at helping enterprises and larger customers build the infrastructure needed to deploy and secure AI at scale. As Nvidia’s GTC event kicks off this week, the two vendors announced the expansion of their jointly developed Secure AI Factory with Nvidia, which melds Cisco security and networking technology, Nvidia DPUs and AI Enterprise software, and multivendor storage options. New to the portfolio is the 102.4Tbps Cisco N9100 powered by Nvidia’s Spectrum-6 Ethernet switch silicon.

War in Middle East raises concerns about physical data center security

16 March 2026 @ 8:00 pm

The war with Iran has added a new dimension to data center security: aerial attack. AWS data centers in Dubai and Bahrain were targeted in drone attacks by Iran earlier this month. The chance of a drone attack on an AWS facility, or any other, for that matter, inside the United States is extremely low but not impossible. So, do data center operators need to start putting surface-to-air missi

Palantir partners with Nvidia to streamline AI data center deployment

16 March 2026 @ 7:03 pm

Two of the companies most synonymous with the AI revolution, Nvidia and Palantir Technologies, have linked arms to create an AI reference architecture operating system. The new Palantir AI OS Reference Architecture (AIOS-RA) is designed to support end-to-end processes from hardware acquisition to application deployment. It will serve as a blueprint for private and public entities to design, deploy, and scale high-performance AI factories. It runs both training and inference tasks on

Quantum Elements cuts quantum error rates using AI-powered digital twin

16 March 2026 @ 3:02 pm

Quantum Elements, a Los Angeles startup, has demonstrated a new technique for suppressing errors in logical qubits that shows the highest fidelity of entangled, logical qubits on a superconducting quantum computer ever achieved. The company says it developed and validated the approach using its own AI-powered quantum digital twin platform, which simulates not just how a quantum circuit is supposed to work but also how it actually behaves on real hardware, noise and all. The peer-reviewed paper was

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.

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heartinternet.co.uk

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Hosting packages for an initial web presence

SSL Certificates are changing. Here’s what you need to know.

17 March 2026 @ 10:12 am

The rules around SSL certificates are changing across the whole internet. The good news is that for most customers, very little will change on your side. This is an industry-wide... The post SSL Certificates are changing. Here’s what you need to know. appeared first on Heart Internet.

Hosting VPS Linux vs Windows VPS

9 March 2026 @ 3:03 pm

The post Hosting VPS Linux vs Windows VPS appeared first on Heart Internet.

Domain Name Transfer Checklist: Everything You Need to Know

3 March 2026 @ 2:56 pm

The post Domain Name Transfer Checklist: Everything You Need to Know appeared first on Heart Internet.

Heart Internet Win Gapstars Innovation Award 2026

23 February 2026 @ 11:57 am

We’re incredibly proud to celebrate our Site Reliability Engineering team, who have won the Gapstars Innovation Award for their outstanding work improving platform stability, security, and visibility across our shared... The post Heart Internet Win Gapstars Innovation Award 2026 appeared first on Heart Internet.

A/B Testing Explained: A Practical Guide To Better Results | Part 1

20 February 2026 @ 8:32 am

If you want to improve your website you probably need to do A/B testing, otherwise known as split testing. Instead of guessing, A/B testing allows you to experiment more scientifically.... The post A/B Testing Explained: A Practical Guide To Better Results | Part 1 appeared first on Heart Internet.

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.

serverfault.com

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

Kerberos and Hadoop UI

17 March 2026 @ 12:11 pm

I have a small number of servers among 100s which will not open the local hadoop (datanode) UI (port 1006). I use the NAMENODE UI to access datanodes and can see data on most but, for these few, I get 401 Unauthorized Access. This is not the same as no kerberos ticket when the message is 'Authorization required'. I tested all the other nodes and they function as expected. The browser is FF and, due to security measures (and no local admin access by me) I am unable to use another browser. I asked our hardware guys and they inform me: The server hardware is all the same. The nodes are all in the same datacentre. The nodes are in the same rack and on the same switch(es). From the OS side, ALL servers (working or not) have the same krb5.conf. I also checked timezones, times and NTP configurations. Everything is consistent across all servers, working or not. As for me, my authentication is via active directory (AS) using my general login and a window

opendkim-testkey fails on newly generated key

17 March 2026 @ 12:40 am

I generated my key using opendkim-genkey -s 2026 -b 1024 and fixed the ownership and permissions on the two files generated in /etc/dkimkeys/. I updated my local DNS and flushed the caches. ; <<>> DiG 9.18.39-0ubuntu0.24.04.2-Ubuntu <<>> -t txt 2026._domainkey.xcski.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22647 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 65494 ;; QUESTION SECTION: ;2026._domainkey.xcski.com. IN TXT ;; ANSWER SECTION: 2026._domainkey.xcski.com. 6690 IN TXT "v=DKIM1; h=sha256; k=rsa; " "p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDU01FgEdmrNcuuPKYAAG7Ktt3TnSsIeza46y6+746tCZCYHmXdEOPPa+OtqKxlEH/dQkVEK/zHTh0elPChmIhWzQuypJTnLGBZAQQ7TILPe0Zewnf7sYUuKM9inFEFG2dIv0/G5BcwZhCsyBFBYNQFn5E7Dce0JIZ8U/ix28ekrwIDAQAB" ;; Query time: 0 msec ;; SERVER:

Route update on gateway IP address change

16 March 2026 @ 8:38 pm

I have a server running Linux with two network cards, eth1 and eth2. These two interfaces are connected to gateway1 and gateway2, respectively, and there are two default routes. For a specific host, I want to always use the interface eth2. To achieve this, I define a route to this host, by using "ip route add IP_of_host via IP_of_gateway2 dev eth2". The settings of eth2 are obtained via DHCP. Occasionally, the IP address of gateway2 changes. When this happens, does the linux kernel automatically update the IP_of_gateway2 in the previous route? Or do I need to delete the old route, and recreate a new one with the new IP address of gateway2?

How should I configure nginx on an Azure Ubuntu VM to access an HSM-protected private key in Azure Key Vault?

16 March 2026 @ 2:12 pm

Our client has a requirement that the private key for their SSL certificate be protected by an HSM. We will be doing this using the option in the Azure Key Vault, as the website will be hosted on an Azure Virtual Machine (running Ubuntu). However, the documentation on how to then configure the virtual machine is conflicting. Some sources, e.g. https://docs.azure.cn/en-us/virtual-machines/extensions/key-vault-linux state that using the Azure Key Vault Extension will suffice to allow the VM to access the vault and allow services on the VM, such as nginx, to access the private key. However, I've seen other articles and comments that suggest this would only work for keys that have been setup in the vault as exportable, which HSM-protected keys are not. Which is correct? What is the best practice for accessing an AKV private key from nginx?

ZONE_RESOURCE_POOL_EXHAUSTED error while creating instance in asia-south1-b

16 March 2026 @ 11:17 am

ZONE_RESOURCE_POOL_EXHAUSTED sabbpe-uat-app-server-gv-instance-group-ncq5 asia-south1-b Creating Mar 16, 2026, 4:19:09 pm UTC+05:30 Instance 'sabbpe-uat-app-server-gv-instance-group-ncq5' creation failed: The zone 'projects/sabbpe-uat-free/zones/asia-south1-b' does not have enough resources available to fulfill the request. Try a different zone, or try again later. We are encountering a ZONE_RESOURCE_POOL_EXHAUSTED error while attempting to create an instance in our project. Project ID: sabbpe-uat-free Instance Group: sabbpe-uat-app-server-gv-instance-group-ncq5 Zone: asia-south1-b Timestamp: Mar 16, 2026, 4:19 PM IST Error Message: "Instance creation failed: The zone 'projects/sabbpe-uat-free/zones/asia-south1-b' does not have enough resources available to fulfill the request." This instance is part of our application deployment and is required for maintaining our service availability. Request:

Unable to purge unused Ubuntu Linux kernels

15 March 2026 @ 10:11 pm

How can I proceed to avoid the next error? $ sudo apt-get autoremove --purge Reading package lists... Done Building dependency tree... Done Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 21 not upgraded. 2 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Setting up linux-modules-nvidia-590-6.17.0-19-generic (6.17.0-19.19~24.04.2) ... linux-image-nvidia-6.17.0-19-generic: constructing .ko files /usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring /usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring /usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring /usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring /usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring /usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring /usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring /usr/bin/ld.bfd: cannot open linker script file /usr/s

How to configure PostgreSQL behind Nginx to permit SvelteKit POST requests without returning 403?

15 March 2026 @ 7:36 pm

I am trying to write a web application using SvelteKit as the frontend that sends POST requests to a PostgreSQL database serving as the backend. The database is running in a Docker container, using the postgres image, and is accessible on my server on a subdomain: db.app.domain.tld. I can successfully send POST requests from my SvelteKit app to this domain when I'm running the app using npm run dev on my local machine; the database instance INSERTs and SELECTs data as expected. However, once I deploy the app on the server (using the adapter-node), where it is currently accessible on app.domain.tld, POST requests fail with an error 403 and the message "Cross-site POST form submissions are forbidden". The database never receives the sent data as a consequence. I understand this is likely a CORS issue, so I have tried adding Access-Control-Allow-* headers to

Microsoft Purview ediscovery Logs

15 March 2026 @ 2:01 pm

Is there anyway to find from the logs if a user is added to ediscovery Manager or ediscovery admin role group? KQL query would be helpful. I suppose for the query the Workload would be SecurityComplianceCenter but what would be the rest of the query if I'm only looking to identify when a user is added to this role group and not for any other changes.

How to mitigate DDoS (syn flood) attack?

15 March 2026 @ 2:01 pm

I got about 30K-50K pps syn flood with bandwidth of ~ 10-20 Mbps from a total of 200M network link. Due to it, I have above 90% packet loss to my VPS. I had nf_conntrack table full error, that was solved by raising nf_conntrack_max. Now there is ksoftirqd process consuming 75% CPU and high packet loss still prevents from normal server functioning. syncookies is set to 2. After iptables -I INPUT ! -i lo -p tcp --dport 80 -j DROP packet loss dropped to 2%, ksoftirqd consuming 33% CPU, but I drop also legit traffic, also iptraf shows bandwidth increased 10x to > 130 Mbps, 250K pps!!! Why? Any ideas how to drop malicious traffic inside the VPS to decrease packet loss with no bandwidth over usage? There is no external firewall. I've tried to block the traffic by country using nftables, but it did not solve packet loss problem. This test was performed at different server in a cloud where my domain A record was pointed (and DDoS attack target migrated to that IP), b

DNS NS Record Fail to Propagate

15 March 2026 @ 10:08 am

I want to bang my head to the wall In my domain DNS panel I set an 1. A Record tns.example.com -> 1.2.3.4 (My VPS IP) 2. NS Record t.example.com -> tns.example.com The "A Record" propagate successfully but the NS record even though I waited 1 week still did not propagate at all. Is propagation depend on I really run a resolver on my machine? or is independent and it should show on propagation test tool. I'm using https://www.whatsmydns.net/ and then use "NS Record" option If I also do nslookup on windows and give my domain NS it works but when I use public NS server non of them reply

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Cheap dedicated server hosting

tagadab.com

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Cheap developer VPS hosting from £10