Apache Archives - Linux Server Support

cPanel Request body no files data length is larger than the configured limit

May 29, 2023 by Yujin Boby

On a WordPress website hosted on Cpanel server, when editing a page, i get 404 error. On checking ModSecurity logs, found the following Message: Request body no files data length is larger than the configured limit (1048576). Message: collection_store: Failed to access DBM file “/var/cpanel/secdatadir/serverok-session”: Permission denied Apache-Error: [file “apache2_util.c”] [line 277] [level 3] [client … Read more

How to enable Apache SSL module in Ubuntu

May 20, 2023 by Yujin Boby

To enable the Apache SSL module in Ubuntu, follow these steps Update apt package cache apt update Install Apache SSL module apt install libapache2-mod-ssl Enable the SSL module a2enmod ssl Example # a2enmod ssl Considering dependency setenvif for ssl: Module setenvif already enabled Considering dependency mime for ssl: Module mime already enabled Considering dependency socache_shmcb … Read more

How to configure Security Headers in Apache

November 23, 2022 by Yujin Boby

Enable HSTS Header set Strict-Transport-Security “max-age=31536000; includeSubDomains; preload” Enable X-Frame-Options Header always append X-Frame-Options SAMEORIGIN Enable X-XSS-Protection Header set X-XSS-Protection “1; mode=block” Enable X-Content-Type-Options Header always set X-Content-Type-Options “nosniff” Enable Referrer-Policy Header always set Referrer-Policy “strict-origin” Enable Content Security Policy (CSP) Header always set Content-Security-Policy “default-src ‘self’; font-src *;img-src * data:; script-src *; style-src *;” … Read more

Apache Website not loading – DDoS

October 22, 2022October 22, 2022 by Yujin Boby

On a Fresh Cpanel Server, after pointing the domain name to the server, the website won’t load. Some times site loads after a very long wait. Apache was working fine and the server load was normal. On checking Apache status in WHM, I found all workers are in use 150 requests currently being processed, 0 … Read more

How to Redirect HTTP to HTTPS using htaccess

September 1, 2022 by Yujin Boby

To redirect a website from HTTP to HTTPS, you can use the following code in .htaccess file RewriteEngine On RewriteCond %{HTTPS} !=on RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301,NE] If you want to redirect HTTP to HTTPS and keep SSL verification pages on HTTP, this is needed on Cpanel servers. RewriteEngine on RewriteCond %{HTTPS} !=on [NC] RewriteCond %{REQUEST_URI} … Read more

How to block Bad Bots (User Agents) using .htaccess

June 24, 2024August 27, 2022 by Yujin Boby

Some bots can cause a high load on servers as they index too many pages or get into some never-ending loop. last day one of the servers I manage had a very high load. On checking Apache logs, I have thousands of access like In this case, the bot user agent is To block the … Read more

Apache 414 Request-URI Too Long

July 15, 2022 by Yujin Boby

On an Apache server, when accessing a long URL, got 414 Request-URI Too Long The error is because the URL is too long, this may be a bug with the web applications. If you pass so much data, you should consider using the HTTP POST method instead of GET request. To fix this error, edit … Read more

Change Apache Server MPM in RHEL 8

February 23, 2022February 23, 2022 by Yujin Boby

Apache on RHEL 8 uses events MPM. You can use apachectl -V command to see the current MPM used by Apache. [root@ok ~]# apachectl -V Server version: Apache/2.4.37 (AlmaLinux) Server built: Jan 25 2022 20:48:49 Server’s Module Magic Number: 20120211:83 Server loaded: APR 1.6.3, APR-UTIL 1.6.1 Compiled using: APR 1.6.3, APR-UTIL 1.6.1 Architecture: 64-bit Server … Read more

How to deny access to a file using .htaccess?

February 5, 2022 by Yujin Boby

You may need to deny access to specific files on your web server for security reasons. On the Apache web server, you can do this by using .htaccess file. Let’s say you need to prevent anyone from accessing the file with the name .user.ini, you can create a file with the name .htaccess with the … Read more

How to install Apache from source code

February 4, 2022 by Yujin Boby

To install the latest version of Apache Web Server from source code, go to the apache website, download the latest source code .tar.gz file. https://httpd.apache.org/download.cgi At the time of writing this, the latest version was Apache HTTP Server 2.4.52. cd /usr/local/src wget –no-check-certificate https://dlcdn.apache.org//httpd/httpd-2.4.52.tar.gz tar xvf httpd-2.4.52.tar.gz cd /usr/local/src/httpd-2.4.52 ./configure –prefix=/usr/local/apache –enable-proxy –enable-proxy-connect –enable-proxy-fcgi –enable-remoteip … Read more

Install PHP APC Cache on CentOS 7 using yum

December 26, 2021 by Yujin Boby

To install APC cache on CentOS 7, run yum install php-pecl-apcu After that, you need to restart the Apache webserver. systemctl restart httpd in phpinfo() page, you will see Files in the packages are [root@localhost ~]# rpm -q –filesbypkg php-pecl-apcu php-pecl-apcu /etc/php-zts.d/40-apcu.ini php-pecl-apcu /etc/php.d/40-apcu.ini php-pecl-apcu /usr/lib64/php-zts/modules/apcu.so php-pecl-apcu /usr/lib64/php/modules/apcu.so php-pecl-apcu /usr/share/doc/pecl/apcu php-pecl-apcu /usr/share/doc/pecl/apcu/NOTICE php-pecl-apcu /usr/share/doc/pecl/apcu/README.md php-pecl-apcu … Read more

Apache 413 Request Entity Too Large

December 24, 2021 by Yujin Boby

On a CentOS server, when uploading a 100 MB video file in WordPress media manager, I got the following error message Request Entity Too Large The requested resource /wp-admin/async-upload.php does not allow request data with POST requests, or the amount of data provided in the request exceeds the capacity limit. The server had mod_security installed. … Read more