Change PDF Metadata from Linux Command Line
PDF Metadata generally contains information about the PDF document – such as Title, Author, MIME type, creator, keyword, pdf version,...
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Install_requires must be a string or list of strings – Fix Qiskit Terra installation
Issue: I got this error – “error in qiskit-terra setup command: ‘install_requires’ must be a string or list of strings...Failed building wheel for qiskit-terra : Error [Fix]
Question: While installing Qiskit packages on CentOS 7, I ended up with an error: Failed building wheel for qiskit-terra. There...The GPG keys listed for the “MySQL 8.0 Community Server” repository are already installed [Fix]
Well, I got this error message “The GPG keys listed for the MySQL 8.0 Community Server repository are already installed but...Yum Error: Unable to find a match: python-pip [Fix]
Question: This is Yashikha again and thanks for helping me out with the previous issue. Now I am stuck with...cURL Error: SSL certificate problem CA certificate key too weak
Question: Hi, I was trying to install python-pip via yum. However, the command ended up with a ‘CURL error: SSL...Fix Class ZipArchive not found error [PHP 7]
Question: I am stuck with an error “PHP Fatal error: Uncaught Error Class ZipArchive not found” in one of the...Find which package the command belongs to in CentOS
Question: I generally use rpm -qa | grep command to find which package the command belongs to. However, the grepped...System-wide Crypto Policies in CentOS 8 [Explained]
Can we assume that people who set up systems or software are experts in their field and they do understand...How to fix “Failed to synchronize cache for repo appstream”
Recently I had explored upgrading CentOS 7 to CentOS 8 and during the process, I encountered the error: Failed to...Rubygems-update requires Ruby version >= 2.3.0 [Fix]
I was trying to update rubygems and ended up with an error “Error installing rubygems-update: rubygems-update requires Ruby version >=...Installing WSO2 API Manager on CentOS
WSO2 API Manager is an Open Source-based API Gateway that allows the development teams to deploy and monitor APIs and...PHP 7.4.3 Configure Errors – libpng, libjpeg, freetype-config, recode not found
Question: I was trying to compile PHP 7.4.3 from the source with GD library support. Unfortunately, the configure script failed...Install Oniguruma on PPC64LE machine with CentOS
Have you ever tried installing Oniguruma on POWER PC with CentOS 7? Well, I did that and it was a...Cannot find pspell – Fix PHP Configuration Error
Question: I was trying to compile PHP 7.4.5 in CentOS 7 on ppc64le architecture. The reason for compiling PHP 7...How to use yum to install a specific version of a Package?
If you ever want to instruct YUM to install only a particular version of a package, then here’s how you...Failed to start PostgreSQL database server – Unregistered Authentication Agent for unix-process [Solved]
Question: I got an error ‘Failed to start PostgreSQL database server – Unregistered Authentication Agent for unix-process‘ while starting PostgreSQL...How to Fix Ruby Installation error: EC_GROUP_new_curve_GF2m undeclared (first use in this function)?
Question: I was compiling Ruby version 1.9.3 on a CentOS machine and landed up with the below error message while...Understanding Puppet Resources, Manifests, Modules and Classes with Examples
In this tutorial, I’ll be explaining about Puppet resources, manifests, modules and classes with examples. Also, I assume that you...Setup command in CentOS 7 throws Error – FirewallD is active, please use firewall-cmd!
I generally use setup or system-config-firewall commands to configure firewall in CentOS machines. But the same commands in CentOS 7...