Clik here to view.
Linux Find Out If PCI Hardware Supported or Not In The Current Running Kernel
WARNING: This tutorial only works with older Linux kernels version such as 2.6.xx. A typical question from my mailbag: How do I find out if a given PCI hardware is supported of by the current CentOS /...
View ArticleClik here to view.
Lighttpd Traffic Shaping: Throttle Connections Per Single IP (Rate Limit)
If you do not control or throttle end users, your server may run out of resources. Spammers, abuser and badly written bots can eat up all your bandwidth. A webserver must keep an eye on connections...
View ArticleClik here to view.
30 Linux System Monitoring Tools Every SysAdmin Should Know
Need to monitor Linux server performance? Try these built-in commands and a few add-on tools. Most distributions come with tons of Linux monitoring tools. These tools provide metrics which can be used...
View ArticleClik here to view.
Vmware Linux Guest Add a New Hard Disk Without Rebooting Guest
As a system admin, I need to use additional hard drives for to provide more storage space or to separate system data from user data. This procedure, adding physical block devices to virtualized...
View ArticleClik here to view.
Top 20 OpenSSH Server Best Security Practices
OpenSSH is the implementation of the SSH protocol. OpenSSH is recommended for remote login, making backups, remote file transfer via scp or sftp, and much more. SSH is perfect to keep confidentiality...
View ArticleClik here to view.
BIND 9 Dynamic Update DoS Security Update
BIND 9 is an implementation of the Domain Name System (DNS) protocols. named daemon is an Internet Domain Name Server for UNIX like operating systems. Dynamic update messages may be used to update...
View ArticleClik here to view.
CentOS Linux Project In Trouble
CentOS is a community-supported, freely-available operating system based on Red Hat Enterprise Linux. Lance Davis created CentOS and now he goes absent without leave. In an open letter from his fellow...
View ArticleClik here to view.
Download CentOS 6 CD / DVD ISO
CentOS Linux version 6 has been released. It is a community-supported operating system based on Red Hat Enterprise Linux (RHEL) version 6. CentOS Linux is considered as the most popular Linux...
View ArticleClik here to view.
Download CentOS 6.1 CD / DVD ISO
CentOS Linux version 6.1 has been released and available for the download. It is a community-supported operating system based on Red Hat Enterprise Linux (RHEL) version 6.1. CentOS Linux is considered...
View ArticleClik here to view.
Configure Memcached Distributed Memory Caching System
Memcached can speed up database driven dynamic web site. It must be deployed within trusted network where vm01 and vm02 clients may freely connect to our server. You need to type the following...
View ArticleClik here to view.
Linux Kernel Security (SELinux vs AppArmor vs Grsecurity)
Linux kernel is the central component of Linux operating systems. It is responsible for managing the system’s resources, the communication between hardware and software and security. Kernel play a...
View ArticleClik here to view.
Linux x86_64: Detecting Hardware Errors
The Blue Screen of Death (BSoD) is used by Microsoft Windows, after encountering a critical system error. Linux / UNIX like operating system may get a kernel panic. It is just like BSoD. The BSoD and...
View ArticleClik here to view.
A cautionary tale about locking Linux & FreeBSD user accounts
Like every other solo developer and sysadmin, I do stuff using ssh. Some stuff is automated using scripts, and others require ssh login. For example, one of my scripts logs into my Linux and FreeBSD...
View ArticleClik here to view.
How to protect Linux against rogue USB devices using USBGuard
usbgurd 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...
View ArticleClik here to view.
DNS settings to avoid email spoofing and phishing for unused domain
As you may know, email spoofing allows attackers to pose as someone else to gain illegal profit. For example, I only use webmaster@cyberciti.biz for communication, but someone might create a...
View ArticleClik here to view.
How To Set Up SSH Keys With YubiKey as two-factor authentication (U2F/FIDO2)
Patreon users download the PDF version. All Linux and Unix servers are managed manually or by automation tools such as Ansible using ssh. For example, say you have a server at Linode or AWS. Then you...
View ArticleClik here to view.
How to skip ChatGPT from WireGuard or OpenVPN on Linux
nixCraft Patreon supporters can download the PDF version here. ChatGPT (short for Chat Generative Pre-trained Transformer) is a chatbot by OpenAI. It provides answers to your queries using learning...
View ArticleClik here to view.
nvtop – Awesome Linux task monitor for NVIDIA, AMD & Intel GPUs
Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post nvtop – Awesome Linux task monitor for NVIDIA, AMD & Intel GPUs appeared first on nixCraft.
View ArticleHow to upgrade FreeBSD 13.1 to 13.2 release
The FreeBSD Release Engineering Team is announcing the availability of FreeBSD version 13.2-RELEASE on 11/April/2023. It is the third release of the stable/13 branches. I updated my FreeBSD version...
View ArticleSetting up VSCode for Ansible Lightspeed AI in Ubuntu 22.04 desktop
Red Hat launched the Ansible Lightspeed Code Assistant Generative AI with IBM Watson Code Assistant in May 2023. This preview is now available to all Ansible users, allowing them to explore the...
View Article
