{Updated} Want to do a reverse DNS (rDNS) Lookup in Linux, macOS, *BSD or Unix/WSL/Windows to find scammers/phishers/spammer using a forward confirm. Try these tips.The post How To Test or Check Reverse DNS on a Linux / Unix appeared first on nixCraft. 2022-06-09T16:31:00Z 2022-06-09T16:31:00Z Vivek Gite

Today, I will share one helpful tip that allows FreeBSD developers and sysadmin to make a backup list of installed all FreeBSD packages and then restore it. Hence, this is useful for disaster recovery (DR) or simply rebuilding a new server. It will save you time. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to backup & restore a list of installed FreeBSD packages appeared first on nixCraft. 2022-06-09T14:31:46Z 2022-06-09T14:31:46Z Vivek Gite

I already wrote about setting up wildcard Let’s Encrypt SSL/TLS with AWS Route53 DNS for Nginx or Apache. One of my clients decided to use Cloudflare CDN and DNS at some point. They changed their DNS to Cloudflare. Naturally, their wildcard certificate failed because it was using Route53 DNS authentication to issue the certificate. Let us see how to convert existing or expired TLS/SSL certification renewal from AWS Route53 to Cloudflare. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How To Convert AWS Route53 to Cloudflare Let’s Encrypt DNS challenge with acme.sh appeared first on nixCraft. 2022-02-08T21:40:04Z 2022-02-08T21:40:04Z Vivek Gite

Many of you access the nixCraft tutorial and blog post using the RSS feed. However, Google decided to kill the last part of Feedburner. Back in the old days, I and many others used FeedBurner. At some stage, Google acquired FeedBurner, and now they are putting it into maintenance mode. Hence, this new change will affect those getting daily emails via FeedBurner when new content is posted here. Therefore I urge you to update your feed. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post Update your nixCraft RSS feed appeared first on nixCraft. 2022-02-08T21:39:15Z 2022-02-08T21:39:15Z Vivek Gite

One can use a hardware security key such as YubiKey for OTP or FIDO2 for additional security on Linux to protect disks, ssh keys, password manager, web applications and more. Since I am a full-time Linux desktop user, I thought today I would document how to install the YubiKey GUI Manager to configure functionality on […] Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to install YubiKey Manager GUI on Linux appeared first on nixCraft. 2022-02-07T10:02:57Z 2022-02-07T10:02:57Z Vivek Gite

While working on the client's system, I found that the whois client was missing. So I used that in one of my deployment scripts. I should add that to cloud-init or Ansible, but the Ubuntu server was already running. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to install whois on Ubuntu / Debian Linux appeared first on nixCraft. 2022-02-07T10:02:51Z 2022-02-07T10:02:51Z Vivek Gite

Google объявил о принятых проектах GSoC на 2022 год. В этом году LibreOffice заявил только два слота (больше не нашлось интересующихся и знающих С++ желающих).

Проект первый: добавить больше тестов для функционала поддержки макросов VBA в LibreOffice и по возможности дописать какие-либо отсутствующие методы. Делать будет Hanna Meeks.

Второй проект: поддержка Z-компрессии для графических форматов файлов. В частности для EMF/WMF. Делать будет Paris Oplopoios. И он уже добавил саму поддержку форматов EMZ/WMZ в исходный код LibreOffice. А теперь будет полировать это, писать тесты, и возможно еще что-нибудь.

Сегодня 25 мая 2022г наш форум https://forumooo.ru подвергся DDoS атаке и перестал работать, поскольку хостер его "спрятал" по техническим причинам.

Вот кому наш местячковый форум про очень уж узкоспециализированную тему помешал?

{Updated} Alpine Linux 3.16.0 has been released. Here is how to upgrade from version 3.15.xx to 3.16.0.The post How to upgrade Alpine Linux 3.15 to 3.16 appeared first on nixCraft. 2022-05-24T20:46:00Z 2022-05-24T20:46:00Z Vivek Gite

WireGuard is an open-source, free, modern, and fast VPN with state-of-the-art cryptography. It is like OpenSSH in simplicity and uses private and public keys. Hence, it is more straightforward as compared to IPSec and OpenVPN. Initially released for the Linux kernel, it works with other operating systems. This page explains how to install and set up WireGuard VPN on Amazon Linux EC2 or Lightsail server. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to Set Up WireGuard VPN on Amazon Linux 2 appeared first on nixCraft. 2022-05-24T17:48:52Z 2022-05-24T17:48:52Z Vivek Gite

{Updated} Forgot to edit Linux or Unix/macOS file as sudo user? Want to overwrite without quitting vim on Linux/Unix? Try vim cmd trick and save time.The post How To Save A File In Vim / Vi Without Root Permission With sudo appeared first on nixCraft. 2022-05-23T12:03:00Z 2022-05-23T12:03:00Z Vivek Gite

Do you want to set or update the AWS EC2 or Lightsail hostname without a reboot when using Amazon Linux 2? Here is how to set or change the hostname on Amazon Linux 2 distribution using the ssh client. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to change hostname on Amazon Linux 2 without reboot appeared first on nixCraft. 2022-05-23T11:48:57Z 2022-05-23T11:48:57Z Vivek Gite

Another day I wrote about setting up ssh public key password-less authentication for FreeBSD server version 12/13 with an optional 2FA hardware USB key (FIDO 2) for additional protection. However, FIDO2 and key type ecdsa-sk and ed25519-sk are not supported by the OpenSSH client and server version shipped with FreeBSD 12 or 13. But, fear not, we can safely upgrade the OpenSSH version using ports collection. This page explains how to install and configure the latest portable version of the OpenSSH client and server on FreeBSD 13. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to install and upgrade OpenSSH server on FreeBSD appeared first on nixCraft. 2022-01-25T15:01:32Z 2022-01-25T15:01:32Z Vivek Gite

SSH is an essential tool for login into the FreeBSD Unix box. Without SSH, you cannot manage a remote server easily. Furthermore, SSH means secure shell, and it is a replacement for insecure protocols such as telnet. This page explains how to configure and set up ssh key-based password-less authentication on a FreeBSD server or workstation. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to set up ssh public key password-less on FreeBSD appeared first on nixCraft. 2022-01-21T11:03:54Z 2022-01-21T11:03:54Z Vivek Gite

I need to find out the CUDA version installed on Linux. How do I know what version of CUDA I have? Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to find the NVIDIA cuda version appeared first on nixCraft. 2021-09-30T09:07:23Z 2021-09-30T09:07:23Z Vivek Gite

{Updated} Learn how to fix warning: setlocale: LC_CTYPE: cannot change locale (UTF-8): No such file or directory on macOS or OX terminal.The post macOS Terminal: -bash: warning: setlocale: LC_CTYPE: cannot change locale (UTF-8): No such file or directory Fix appeared first on nixCraft. 2021-09-30T08:10:00Z 2021-09-30T08:10:00Z Vivek Gite

{nixCraft Patreon supporters content}You deployed a perfect firewall and other network security policies preventing unauthorized access to the user's desktop computer over a network. However, you still need to block USB device access. We can configure a Linux desktop security policy to protect your computer against rogue USB devices (a.k.a. BadUSB) by implementing essential allow and blocklisting capabilities based on device attributes. For instance, I can define what kind of USB devices are authorized and how a USB device interacts with the Linux system. For example, I can define policy allowing Yubikey with serial number "XYZ" and USB LTE modem with serial # "ABC." Every other USB device access is denied by default. This guide will cover the following topics: The post How to protect Linux against rogue USB devices using USBGuard appeared first on Opensource Flare✨. 2021-09-29T21:43:46Z 2021-09-29T21:43:46Z Vivek Gite

LibreOffice 7.4 alpha 1 доступен для тестирования.
Из нового и важного:
1. В Calc по умолчанию включены 16384 столбца вместо 1024 ранее
2. Улучшили производительность в Calc в различных случаях, особенно, когда большое количество ВПР функций в ячейках
3. Добавлена поддержка картинок в формате WEBP
4. В Calc добавлены спарклайны
5. Добавлена поддержка файлов в формате EMZ/WMZ
6. Увеличена скорость экспорта в PDF для некоторых случаев и больших документов
7. Очередная порция фиксов для совместимости с файлами MS Office
8. Порция фиксов для поддержки VBA макросов

{Updated} The host command is an easy to use command-line utility for performing DNS lookups under Linux, macOS, BSD and Unix-like systems. We can use it to find or convert DNS names to IP addresses and vice versa. Let us see the host command examples on Linux and Unix-like systems with daily use cases for developers and sysadmins to troubleshoot DNS and networking issues.The post Linux and Unix host Command Examples appeared first on nixCraft. 2022-05-13T20:02:00Z 2022-05-13T20:02:00Z Vivek Gite

Sometimes I need a specific Ansible module from ansible-galaxy to carry out a particular type of automation. But I don't know if it is already installed or not or bundled with Ansible when I installed the latest version on Ubuntu Linux. So here is a quick command-line tip for finding out if the Ansible module is installed or not on your development workstations powered by Linux, Unix or macOS. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to check if Ansible collection is installed or not appeared first on nixCraft. 2022-05-13T19:27:08Z 2022-05-13T19:27:08Z Vivek Gite