nixCraft Linux / UNIX Newsletter

How do I install and configure the latest version of Nginx web server on a CentOS 7 or RHEL 7 server using the CLI and host a static site?

The post How to install and use Nginx on CentOS 7 / RHEL 7 appeared first on nixCraft.

I setup Redis cache for my web app. I want a blank database and get rid of all keys. How can I delete everything in Redis cache? How do I flush my Redis cache using the Linux/Unix command line option?

The post How to flush Redis cache and delete everything using the CLI appeared first on nixCraft.

FreeBSD includes software from the OpenSSL Project for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. OpenSSL has multiple vulnerabilities on a FreeBSD. Currently, no workaround is available. You need to update OpenSSL on FreeBSD version 10.x and 11.x.

The post Update your OpenSSL on FreeBSD 10.x/11.x to fix vulnerabilities appeared first on nixCraft.

The Debian project has announced an updated version of Debian 9 (codename "stretch") and Debian 8 (codename "jessie"). One can get new updates merely running the apt command/apt-get command.

The post Updated version of Debian Linux 8/9 has been released appeared first on nixCraft.

S-tui is a free and open source terminal UI for monitoring your computer. s-tui allows to monitor CPU temperature, frequency, power and utilization in a graphical way from the terminal. It is written in Python and need root permission to use the s-tui. It is useful for:

1. Watch your CPU temperature/utilization/frequency/power
2. See performance dips caused by thermal throttling
3. No need to use X-server. Perfect for headless usage including Raspberry PI

Let us see how to install and use s-tui on a Linux based system.

The post Monitor Linux CPU temperature, frequency, power in a graphical way appeared first on nixCraft.

Redis is a free and open source (BSD licensed) key-value store. It is in-memory data structure store, used as a database, cache and message broker. How can I install Redis server on Ubuntu Linux 16.04 LTS?

The post How to install Redis server on Ubuntu Linux 16.04 appeared first on nixCraft.

How do I download and use a cloud image with kvm running on an Ubuntu Linux server? How do I create create a virtual machine without the need of a complete installation on an Ubuntu Linux 16.04 LTS server? How can I use KVM cloud image on Ubuntu?

The post How to use KVM cloud images on Ubuntu Linux appeared first on nixCraft.

I have a bash shell variable called u="this is a test". How can I extract the "test" string and store into a shell variable?

The post How to extract substring in Bash appeared first on nixCraft.

I like htop interactive process viewer. Recently I found another one called gtop. It is similar to top, but fancier. Let us see how to install and use gtop on a Linux or macOS Unix based system.

The post gtop: Awesome system monitoring dashboard for Linux/macOS Unix terminal appeared first on nixCraft.

The vim editor is a free and open source text editor. It is a clone of vi text editor. Vim is extremely popular among the Linux, macOS and Unix-like system users. Vim has many commands. It comes with a pretty extensive built-in manual too. One might get lost in the built-in manual. Let us see if "Mastering Vim Quickly From WTF to OMG in no time" can help a new or experienced vim user to increase productivity.

The post Book review: Mastering Vim Quickly From WTF to OMG in no time appeared first on nixCraft.

You can configure sudo command to insult user when they type the wrong password. Now, it is possible to abuse insult the user when they enter the wrong command at the shell prompt.

The post Command line fun: Insult the user when typing wrong bash command appeared first on nixCraft.