How to Fix DROWN Vulnerability in Apache/NGINX Web server and SMTP?
Here’s a latest vulnerability called DROWN (Decrypting RSA with Obsolete and Weakened eNcryption) that aims to attack servers using weak...
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How to use libguestfs tools to Edit Virtual machine (VM) Disk Images in CentOS/RHEL/Fedora?
Question: By mistake I had disabled ‘root’ account in a CentOS Virtual machine running in VMWare. Thereafter, I tried all...How to Extract Audio from YouTube Videos and Save it as mp3, wav using youtube-dl command-line tool in Linux?
This tutorial will guide you to install a simple command-line utility called youtube-dl that allows you to extract audio from...How to Fix ‘ERROR: WARNING: unable to obtain file audio codec with ffprobe’? [Solved]
Question: I was using youtube-dl command-line utility on CentOS to extract an audio from YouTube Video. However, the command failed with...How to Compile and Install FFmpeg from source in CentOS/RHEL?
I got an ERROR: ffprobe or avprobe not found while installing youtube-dl command-line utility on CentOS. This tutorial will show you on...How to Install or Update autoconf and automake on RHEL/CentOS?
Question: I was installing ffmpeg with Yasm support, during which I need to use autoconf to generate configuration script on...[Solved]: How to Prevent Virtual Machine’s clock Synchronizing with Host machine and Set Independent clock time?
Question: In my CentOS 5 VM (running on Xen server), the date command displays wrong output (as 16 Jun 2015 07:05:11...How to configure a Linux Bridge to act as a Hub instead of a Switch
A bridge is a device that separates two or more network segments within one logical network. A bridge is one...CentOS7 minimal Installation:”Ifconfig” : Command not found [Solved]
Question : Recently installed minimal version of CentOS 7 as a guest VM on my xen hypervisor. After successful completion...How to Setup Image Authorization in MediaWiki and Restrict access only to Logged-in users?
I had setup a private MediaWiki for one of my project and that allows only logged-in users to view its...How to fix Python Installation Error while loading shared libraries: libssl.so.1.0.0? [Solved]
Question: Thanks to the guide on How to compile and install Python with OpenSSL Support. However, the installation failed with an...Python Error – urllib2 URLError: urlopen error unknown url type: https [Solved]
Question: I got this error urllib2.URLError: <urlopen error unknown url type: https> while installing packstack. After checking the program, I understood that...[Linux]: Diagnose Network Issues using MTR – better than traceroute!
Monitoring network connectivity is an important part of server administration. Few tools like ping, traceroute are simple to use and provides valuable...How to Store the output of SHOW PROCESSLIST into a file in MySQL?
Question: I have used SPOOL command in Oracle SQL for storing query results into a file and when all is done, spool...How to Install Multiple Versions of Python (2.7 and 3.5) Without breaking System tools and Create Isolated environment using Virtualenv?
Today, I’m going to tell you how to install Python 2.7 and 3.5 versions on CentOS 6.4. And we are...[Solved]: dig: command not found – How to install dig on CentOS/Redhat/Fedora Linux using yum
Question: I followed your tutorial – how to identify the DNS server IP address configured on my CentOS 6 using the dig...[Solved]: Why rsync didn’t copy Hidden files/directories and Why asterisk does not include hidden(dot) files in Linux?
I used rsync command to copy a particular user directory from one storage device to another. The operation completed successfully without...[Solved]: Tips to fix Disk usage 100% always on Windows 10 & Improve Windows Performance
Recently due to some issue I had to re-install Windows 10 OS on my Lenovo Ideapad laptop. The installation went...Microsoft Windows 10/8/7 Sticky Notes App : A Handy in reminding you all the things – Tips n Tricks
Sticky Notes, a simple app which comes bundled with Windows 10/8/7 is a powerful reminder visible on your screen to...