No space left on device: Couldn’t create the rewrite-map mutex: Configuration Failed [Apache]
Since my webserver (apache) wasn’t responding, I restarted the apache service. Most of the time restarting works, this time it...
Web Server
Configure Apache for WebSockets using Reverse Proxy
I used WebSockify in my web application to connect to the VNC server using noVNC to enable remote access to...SELinux: Cannot write into “Config” directory! [OwnCloud]
I installed owncloud with all the necessary pre-requisites and when tried to access over the browser encountered error: Cannot write...How to stop Apache mod_rewrite log message [Apache]
I had written a few rewrite rules to disable HTTP TRACE and TRACK as part of VAPT. When looking at...How to Enable HSTS (HTTP Strict Transport Security) Policy in Nginx & Apache
According to Netcraft’s study, 95% of HTTPS servers are vulnerable to Man-in-the-Middle attacks. Therefore, it is very important to implement...How to disable HTTP TRACE/TRACK methods in APACHE
VAPT testing by the security experts group suggested disabling HTTP TRACE/TRACK methods. TRACE and TRACK are HTTP methods that are...Hide Apache and PHP versions from HTTP Headers
Website security is the most important and critical component of web hosting and revealing Apache and PHP versions on the...Failed to open stream: Permission denied [Apache]
Moved my local development files to the server after setting up Apache, PHP, and MySQL on my CentOS 7. When...RewriteCond: NoCase option for non-regex pattern ‘-f’ is not supported [htaccess]
After removing the .php extension from the URLs, I ended up seeing a warning “RewriteCond: NoCase option for non-regex pattern...[CentOS 7 Apache]: Permission denied: file permissions deny server access
Whenever I configure Apache on CentOS 7, most of the time I get “(13) Permission denied: file permissions deny server...Remove .php extension from the URL [htaccess]
I love PHP, but my boss does not. Once, he was not happy to see the project coded in PHP...Session Hijacking – VAPT Vulnerability Detection & Prevention
After the development of a web application for a client, I had requested our security experts group to carry out...Install phpseclib packages Net_SSH2 and Net_SFTP on PPC64LE with CentOS 7
I was deploying a web application on PPC64LE architecture with CentOS 7. As the machine wasn’t set up with web...Fix SSL_PROTOCOL_ERROR and SSL_ERROR_RX_UNEXPECTED_NEW_SESSION_TICKET [NGINX & LetsEncrypt]
I had set up my website on NGINX with LetsEncrypt for SSL. All was good until the browser refused to...502 Bad Gateway Error NGINX [Solution]
How do you feel when your client WhatsApps a screenshot of his website that says 502 bad gateway NGINX error? Nothing...Using PHP encoders to Protect Source Code [phpBolt example]
How to protect PHP source code? Well, this is one of the most asked question among PHP developers. Many PHP...Upstream sent too big header while reading response header from upstream – NGINX error
While working on my client website which is based on WooCommerce, I happened to see the checkout page failing with...Run multiple versions of PHP for different domains in NGNIX
I recently purchased EduExpression WordPress plugin for a client to setup an examination software. I was able to install and...PHP Fatal error: Call to undefined function bcmod()
I recently purchased an examination software plugin called EduExpression for WordPress. However, I got the below error while setting up...Uncaught Error Class ZipArchive not found – docxpresso plugin
One of my client wanted to write tutorials containing lots of mathematical equations and formulas. By default, WordPress editor supports...