Tag Archives: solaris

How to extract a .deb file without opening it on Debian or Ubuntu Linux

How to extract a .deb file without opening it on Debian or Ubuntu Linux

I downloaded a .deb Debian file. How do I extract deb package without installing it on my Debian or Ubuntu Linux based system? How do I list and extract the contents of a Debian package?
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How to enable TLS/SSL encryption with Glusterfs storage cluster on Linux

How to enable TLS/SSL encryption with Glusterfs storage cluster on Linux

I setup GlusterFS cluster on Ubuntu Linux. How do I enable network encryption using TLS/SSL for my Glusterfs storage cluster on Linux for security reasons? How do I setup I/O encryption and management encryption with Glusterfs?
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How to disable smileys/emojis in WordPress headers to speed up the site

How to disable smileys/emojis in WordPress headers to speed up the site
WordPress has smileys or so-called emojis added in version 4.2+. It added emoji character using javascript and other junk. It slows down the site for no real reason, and I do not use it at all. Here is how to remove unnecessary HTML and emoji URL calls to every page of your site and speed up your site.

Disable WordPress emoji
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The Librem 13 v1: A full-fledged modern laptop with coreboot for freedom and privacy freaks

The Librem 13 v1: A full-fledged modern laptop with coreboot for freedom and privacy freaks
Coreboot is a free and open source software. The project aimed at replacing the proprietary BIOS firmware and blobs. Unfortunately, Coreboot does not run on the modern laptop (except Chromebooks) due to Intel ME and other closed source technologies.

Purism vendor sells Linux preloaded on the Librem 13 and the Librem 15 laptops. Purism claims to follow a strict belief in users’ rights to privacy, security, and freedom. Untile today Librem bios was not freed. However, the coreboot port for the Librem 13 v1 is 100% done. It means you can have blob free Coreboot running on a full-fledged modern laptop. The laptop comes with Hardware Kill Switches that physically sever the circuit at the hardware level for Wireless & Bluetooth, Camera & Microphone. The specs are as follows:


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How to install GlusterFS with a replicated high availability storage volume on Ubuntu Linux 16.04 LTS

How to install GlusterFS with a replicated high availability storage volume on Ubuntu Linux 16.04 LTS

I want to share my web server DocumentRoot /var/www/html/ across 2 Apache web server. Both of my web servers are behind load balanced reverse proxy powered by Nginx. How do I setup and install GlusterFS (“distributed storage”) which is a scalable network filesystem on Ubuntu Linux 16.04 LTS server?
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How to wipe a signature from a disk device on Linux with wipefs command

How to wipe a signature from a disk device on Linux with wipefs command

I recently decommissioned Debian Linux based nas server and moved disk from my nas server to Linux-powered desktop. However, when I run fdisk command, I am getting the following error:
    /dev/sdb: device contains a valid ‘LVM2_member’ signature; it is strongly recommended to wipe the device with wipefs(8) if this is unexpected, in order to avoid possible collisions
What is a wipefs and how do I use it on Linux?
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How to use parallel ssh (PSSH) for executing ssh in parallel on a number of Linux/Unix/BSD servers

How to use parallel ssh (PSSH) for executing ssh in parallel on a number of Linux/Unix/BSD servers
Recently I come across a nice little nifty tool called pssh to run a single command on multiple Linux / UNIX / BSD servers. You can easily increase your productivy with this SSH tool.

More about pssh

pssh is a command line tool for executing ssh in parallel on some hosts. It provides specialties includes:

  1. Sending input to all of the processes
  2. Inputting a password to ssh
  3. Saving output to files
  4. IT/sysadmin taks automation such as patching servers
  5. Timing out and more

Let us see how to install and use pssh on Linux and Unix-like system.

pssh-welcome
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How to forcefully shutdown a guest VM using virsh command on Linux KVM

How to forcefully shutdown a guest VM using virsh command on Linux KVM

I used the command ‘virsh shutdown vm1’ to shut down a guest named vm1 using the virsh command. However, it is still running, and my vm1 is not responding to an ssh session. Is there is a way to forcefully stop or kill a guest VM using the virsh command from host server?
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