Fix NGINX 403 forbidden error after changing Root directory
Installed Nginx and PHP-FPM for processing PHP files on CentOS server. To my surprise when accessed PHP files through browser,...
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Vim highlights texts in Red? Here’s how you can stop that!
Here’s a question from Mr. Rajan, one of the regular readers at Techglimpse. His issue is why vim highlights texts...Error Cannot build module while building external Perl modules
Do you get an error “Cannot build module” while compiling OpenCA base 1.5.1? If yes, then this tutorial will explain...Named error network unreachable in system logs [Fix]
Do you see “Named error network unreachable” in your system log files and surprised why there were so many such...Deprecated option RSAAuthentication SSH rexec [Fix]
Here’s a question from Mr. Ramesh, one of our regular reader at Techglimpse. He says that his system log messages...How to find a Disk is SSD or HDD in Linux?
I recently bought a server with SSD (Solid State Drive) disk. But how do I verify if I had really...Systemctl replaces Chkconfig and Service commands in CentOS 7
From our previous experience of CentOS/RedHat, we all knew that “chkconfig“ command is used for checking and updating runlevel information...Metadata file does not match checksum – YUM error!
Sometimes you might land up with this error – Metadata file does not match checksum while performing any yum operation. For...fatal error openssl/evp.h: No such file or directory : [Solved]
Did you ran into an error “fatal error openssl/evp.h” while installing openca-base-1.5.1 package? I did ran through few errors –...ifconfig command not found on CentOS 7 Minimal installation
I have been using ifconfig command to configure network interfaces, enable or disable interface, display IP address information, change MAC...What is the current runlevel of Linux system?
These days Linux systems comes with beautiful graphical interfaces as compared to earlier terminals that are text-mode interfaces. So, Linux...Why hosts.allow not working on CentOS 7 Minimal installation
Here’s a question asked by Gokul, one of the regular reader at Techglimpse – hosts.allow not working on CentOS 7...How to Disable Root User Login via SSH
By default SSH will allow any valid user account to login to the remote system and that includes root user...Can’t locate Module/Load/Conditional.pm [Solution]
Did you get an error “Can’t locate Module/Load/Conditional.pm” while installing/Upgrading OpenSSL to the latest version? Here’s the complete error message...Can’t locate Test/Harness.pm perl Error: [Solution]
Do you get the below Perl error while installing/Upgrading OpenSSL to the latest version? Can't locate Test/Harness.pm in @INC (@INC...Error loading shared libraries libcrypto.so.1.1 – OpenSSL [Fix]
Followed the guide to upgrade my OpenSSL to version 1.1.0f and after successful installation I get this error “Error loading...How to upgrade OpenSSL v1.0.1e to v1.0.2 on CentOS/RHEL
OpenSSL is an open source toolkit that provides tons of functionalities for Secure Socket Layer (SSL) and Transport Layer Security (TLS)...yum-config-manager command not found [Fix]
Do you get an error “yum-config-manager command not found” while upgrading PHP? Well, I got this error while upgrading PHP...Configure error: no acceptable C compiler found in $PATH
Do you get an error “no acceptable C compiler found” while compiling OpenCA from source? If yes, here’s a fix...Perl error: PERL XML-Parser module requires expat-devel
I recently fixed an error “addMessage failed for log slot XML” while accessing OpenCA pub page. However that was an older...