Tag Archives: cent os

System76 brings 4K display Ubuntu Linux laptop for Pro users

System76 brings 4K display Ubuntu Linux laptop for Pro users
Finally, some good news for Apple fans who crashed System76 website a few days back. Apple makes a good laptop. However, they lack the option to add additional RAM or ports or graphics card. The new System76 Oryx laptop has a 4K HiDPI display. If you are a sysadmin, DevOps, or developer, give it a try to System76.
System76 Oryx Pro with 4K display
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How to setup HTTP Strict Transport Security With Lighttpd Web Server

How to setup HTTP Strict Transport Security With Lighttpd Web Server

HTTP Strict Transport Security (HSTS) is a security feature that lets your web site tell client browsers that it should only be communicated with using HTTPS only. How can I setup HSTS using lighttpd web server on Linux or Unix-like system?
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Issue #1

Issue #1

News and updates from Linux/Unix and FOSS world

  • {PHP} PHP 7.0.13 released
  • {Debian} Debian 9 drops support for powerpc
  • {Security} A fake SSH server that lets everyone in and logs their activity
  • {Docker} Docker in production: A history of failure
  • {Editor} Buttery smooth Emacs
  • {Kernel} The status of Linux kernel hardening
  • {Hardware} Warning: 2016 MacBook Pro is not compatible with Linux. You should avoid Apple and try: 10 Places To Buy A Laptop With Linux Preloaded
  • {Hardware} VoCore2: $4 Coin-sized Linux Computer with WiFi

Free books

  • Learn Vimscript the Hard Way
  • Vim for Humans
  • A byte of Vim

Tutorials

  • {Updated} Openbsd install or add binary software package. Now includes pkg.conf info
  • {Updated} A Shell Primer: Master Your Linux, OS X, Unix Shell Environment
  • {Updated} I love simplicity of OpenBSD. Restart networking service on OpenBSD

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How to remove all old and outdated brew packages on MacOS

How to remove all old and outdated brew packages on MacOS

I am using Homebrew to install packages on MacOS Sierra or Mac OS X. I noticed multiple version of bash or curl installed in /usr/local/Cellar/bash/. How can I delete an outdated version of brew packages and only keep the latest version on my system?
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How to speed up OpenSSL/GnuPG Entropy For Random Number Generation On Linux

How to speed up OpenSSL/GnuPG Entropy For Random Number Generation On Linux
Entropy is nothing but the measure of “randomness” in a sequence of bits. The PRNG ( pseudorandom number generator ) is a special device (e.g. /dev/random on Linux) to create randomness from server hardware activities. It uses interrupts generated from the keyboard, hard disk, mouse, network and other sources. The random number generator gathers environmental noise from device drivers and other sources into an entropy pool. The randomness usually used for security purposes like creating TLS/SSL keys and the quality source of random bits is critical. For example, OpenSSL APIs can use quality randomness to make your program cryptographically secure. However, a poor source of randomness could result in loss of security. In this post, I will cover haveged and rng-utils/rng-tools to generate random numbers and feed linux random device for your virtual or dedicated Linux server.
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