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How to perform find and replace operations within a visual selection in Vim

nixCraft - Wed, 11/19/2025 - 10:35
Here's a quick tip for vim users. You can perform find and replace operations within a visual selection in Vim for text or code block. Visual selection for finding and replacing text in Vim allows developers and Linux/Unix users precise and efficient text editing. It's handy when you want to change specific portions of text or code blocks within a larger file without affecting other occurrences. This method required to minimizing manual search and reducing the risk of unintended code or text modifications. Let us see how to find and replace in Vim visual mode selection. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to perform find and replace operations within a visual selection in Vim appeared first on nixCraft. 2024-05-07T06:14:33Z 2024-05-07T06:14:33Z Vivek Gite

How to find hidden processes and ports on Linux/Unix/Windows

nixCraft - Wed, 11/19/2025 - 10:35
Unhide is a little handy forensic tool to find hidden processes and TCP/UDP ports by rootkits / LKMs or by another hidden technique. This tool works under Linux, Unix-like system, and MS-Windows operating systems. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to find hidden processes and ports on Linux/Unix/Windows appeared first on nixCraft. 2024-05-07T05:05:51Z 2024-05-07T05:05:51Z Vivek Gite

How to add bash auto completion in Debian Linux

nixCraft - Wed, 11/19/2025 - 10:35
Bash is a command language interpreter compatible with sh. It can execute commands read from a file or keyboard. On Debian Linux, bash-completion is a set of shell functions that uses Bash's programmable completion feature. This page provides instructions on installing and enabling Bash auto-completion on Debian Linux versions 10, 11, and 12 to increase productivity by writing custom bash code. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to add bash auto completion in Debian Linux appeared first on nixCraft. 2024-05-06T15:51:25Z 2024-05-06T15:51:25Z Vivek Gite

How to add cron job entry for acme.sh

nixCraft - Wed, 11/19/2025 - 10:35
Recently, I had a learning experience with cron jobs and acme.sh. acme.sh is an excellent tool that simplifies the management of Let's Encrypt TLS (SSL) certificates. It makes obtaining and renewing these essential security certificates for your web server easier. Recently, I moved my server from Linode to AWS, which was a new environment for me. Initially, everything appeared to be working correctly, and I assumed everything was running smoothly. However, I forgot to migrate the cron job that acme.sh uses to renew the certificate automatically. This oversight caused my Let's Encrypt certificates to expire, resulting in security warnings and potential disruptions for visitors to my website. Opps! Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to add cron job entry for acme.sh appeared first on nixCraft. 2024-05-03T06:43:12Z 2024-05-03T06:43:12Z Vivek Gite

How to Upgrade Ubuntu 22.04 to 24.04 LTS: A Complete Guide

nixCraft - Wed, 11/19/2025 - 10:35
{nixCraft Patreon supporters content}Below is a sneak peek of this content! Ubuntu 24.04 LTS (Noble Numbat) was launched on April 25th, 2024. This new version will be supported for five years until June 2029. The armhf architecture now provides support for the Year 2038 problem. The upgrades include significant updates to core packages like Linux kernel, systemd, Netplan, […]The post How to Upgrade Ubuntu 22.04 to 24.04 LTS: A Complete Guide appeared first on Opensource Flare✨. 2024-04-26T18:25:08Z 2024-04-26T18:25:08Z Vivek Gite

How to Upgrade Ubuntu 22.04 to 24.04 LTS: A Complete Guide

nixCraft - Wed, 11/19/2025 - 10:35
Ubuntu 24.04 LTS (Noble Numbat) was launched on April 25th, 2024. This new version will be supported for five years until June 2029. The armhf architecture now provides support for the Year 2038 problem. The upgrades include significant updates to core packages like Linux kernel, systemd, Netplan, toolchain upgrades for better development support, enhanced security measures, and performance optimizations. It also has an updated GNOME desktop environment and other default applications. Let us see how to upgrade Ubuntu 22.04 LTS to Ubuntu 24.04 LTS using the CLI over ssh-based session. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to Upgrade Ubuntu 22.04 to 24.04 LTS: A Complete Guide appeared first on nixCraft. 2024-04-26T08:33:21Z 2024-04-26T08:33:21Z Vivek Gite

How to configure AWS SES with Postfix MTA on Debian Linux

nixCraft - Wed, 11/19/2025 - 10:35
AWS SES (Amazon Simple Email Service) is a cloud-based email-sending service that is both reliable and cost-effective. This service is offered by Amazon Web Services. Postfix is a popular email server for Debian and Unix-like systems. It is an open-source Mail Transfer Agent (MTA) responsible for routing and delivering emails. Debian Linux is a widely used Linux distribution known for its stability and user-friendliness for server usage. Let us see how to integrate AWS SES with the Postfix MTA on Debian Linux version 11/12. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to configure AWS SES with Postfix MTA on Debian Linux appeared first on nixCraft. 2024-04-19T07:04:06Z 2024-04-19T07:04:06Z Vivek Gite

The repository ‘http://deb.debian.org/debian buster-backports Release’ no longer has a Release file.

nixCraft - Wed, 11/19/2025 - 10:35
When you run the sudo apt update, you may see the following message or error on a Debian Linux: Err:5 http://deb.debian.org/debian buster-backports Release 404 Not Found [IP: 146.75.34.132 80] Reading package lists... Done E: The repository 'http://deb.debian.org/debian buster-backports Release' no longer has a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. Here is how to fix this issue. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post The repository ‘http://deb.debian.org/debian buster-backports Release’ no longer has a Release file. appeared first on nixCraft. 2024-04-14T20:42:01Z 2024-04-14T20:42:01Z Vivek Gite

How do I find out my timezone in Linux?

nixCraft - Wed, 11/19/2025 - 10:35
You can find the timezone in Linux using the command line. The easiest way to do this is to type the "timedatectl" command and look for the "timezone" line when using modern Linux distros with systemd. There are other commands and ways to temporarily switch to a new timezone for date calculations. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How do I find out my timezone in Linux? appeared first on nixCraft. 2024-04-06T01:06:44Z 2024-04-06T01:06:44Z Vivek Gite

Chinese University Collected More AI Patents Than MIT, Stanford, Princeton and Harvard Combined

Slashdot.org - Wed, 11/19/2025 - 10:25
Tsinghua University collected 4,986 AI and machine learning patents between 2005 and the end of 2024. The Beijing institution has received more than 900 patents last year alone. The total exceeds the combined patent count from MIT, Stanford, Princeton and Harvard during the same period. China now accounts for more than half of all active patent families globally in AI and machine learning fields, according to data analytics service LexisNexis. The university also has more AI research papers among the 100 most cited than any other school at last count. The US still holds the most influential AI patents and the top performing models. Harvard and MIT consistently rank ahead of Tsinghua in patent influence. American institutions produced 40 notable AI models in 2024 compared to 15 from Chinese organizations, according to Stanford's AI Index Report. China's share of the world's elite AI researchers -- the top 2% -- rose from 10% in 2019 to 26% in 2022. The US share fell from 35% to 28% during the same period, according to the Information Technology & Innovation Foundation.

Read more of this story at Slashdot.

Google’s 2025 Accelerator Impact Report is hereGoogle’s 2025 Accelerator Impact Report is hereGlobal Head of Google Accelerators

GoogleBlog - Wed, 11/19/2025 - 10:00
An overview of Google’s 2025 Accelerator Impact Report.An overview of Google’s 2025 Accelerator Impact Report.
Categories: Technology

Cloudflare Explains Its Worst Outage Since 2019

Slashdot.org - Wed, 11/19/2025 - 09:47
Cloudflare suffered its worst network outage in six years on Tuesday, beginning at 11:20 UTC. The disruption prevented the content delivery network from routing traffic for roughly three hours. The failure, writes Cloudflare in a blog post, originated from a database permissions change deployed at 11:05 UTC. The modification altered how a database query returned information about bot detection features. The query began returning duplicate entries. A configuration file used to identify automated traffic doubled in size and spread across the network's machines. Cloudflare's traffic routing software reads this file to distinguish bots from legitimate users. The software had a built-in limit of 200 bot detection features. The enlarged file contained more than 200 entries. The software crashed when it encountered the unexpected file size. Users attempting to access websites behind Cloudflare's network received error messages. The outage affected multiple services. Turnstile security checks failed to load. The Workers KV storage service returned elevated error rates. Users could not log into Cloudflare's dashboard. Access authentication failed for most customers. Engineers initially suspected a coordinated attack. The configuration file was automatically regenerated every five minutes. Database servers produced either correct or corrupted files during a gradual system update. Services repeatedly recovered and failed as different versions of the file circulated. Teams stopped generating new files at 14:24 UTC and manually restored a working version. Most traffic resumed by 14:30 UTC. All systems returned to normal at 17:06 UTC.

Read more of this story at Slashdot.

Simplify the holidays with 4 new Google Maps featuresSimplify the holidays with 4 new Google Maps featuresChief Holiday Officer

GoogleBlog - Wed, 11/19/2025 - 09:00
Learn more about Maps’ new features to help you find inspiration and plan in advanceLearn more about Maps’ new features to help you find inspiration and plan in advance
Categories: Technology

Netgear Accused by Rival of China Smear To Fan Security Fear

Slashdot.org - Wed, 11/19/2025 - 08:49
An anonymous reader shares a report: California-based TP-Link says it may take a sales hit of more than $1 billion because of erroneous reports that the networking company's technology has been "infiltrated" by Beijing. In a lawsuit, TP-Link claims its competitor, Netgear, orchestrated a smear by planting false claims with journalists and internet influencers with the goal of scaring off customers. Closely held TP-Link, which makes wireless routers, alleges in a complaint filed Monday that Netgear's campaign "threatens injury to well over a billion dollars in sales" and violates a 2024 settlement of a patent fight. That accord, in which TP-Link agreed to pay Netgear $135 million, includes a provision that the public company promises not to disparage its rival, according to the suit in Delaware federal court. The suit comes as TP-Link faces growing scrutiny in Washington over national-security issues. US lawmakers from both parties have expressed concern that TP-Link's wireless equipment could be exploited by Chinese hackers following a series of attacks on its routers.

Read more of this story at Slashdot.

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