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Apache 2.4 AH01762 & AH01760: failed to initialize shm (Shared Memory Segment)

Apache 2.4 AH01762 & AH01760: failed to initialize shm (Shared Memory Segment)

Mattias Geniar, Tuesday, January 12, 2016

I recently ran into the following problem on an Apache 2.4 server, where after server reboot the service itself would no longer start.

This was the error whenever I tried to start it:

$ tail -f error.log […]

Hotlink Protection

Enable Hotlink Protection on Apache

If your WordPress site is running on Apache, all you need to do is open the .htaccess file in your site’s root directory (or create it) and add the following:

RewriteEngine on RewriteCond %{HTTP_REFERER} !^$ RewriteCond %{HTTP_REFERER} !^http(s)?://(www\.)?yourdomain.com [NC] RewriteCond %{HTTP_REFERER} !^http(s)?://(www\.)?google.com [NC] RewriteCond %{HTTP_REFERER} !^http(s)?://(www\.)?bing.com [NC] RewriteCond %{HTTP_REFERER} !^http(s)?://(www\.)?yahoo.com […]

Implementing Content Security Policy in Apache

Header unset Content-Security-Policy Header add Content-Security-Policy “default-src ‘self'” Header unset X-Content-Security-Policy Header add X-Content-Security-Policy “default-src ‘self'” Header unset X-WebKit-CSP Header add X-WebKit-CSP “default-src ‘self'”

You may also be interested in adding those headers:

Header set X-Content-Type-Options “nosniff” Header set X-XSS-Protection “1; mode=block” Header set X-Frame-Options “DENY” Header set Strict-Transport-Security “max-age=631138519; includeSubDomains”

 

 

 

Along […]

HTTP Strict Transport Security for Apache, NGINX and Lighttpd

HTTP Strict Transport Security (often abbreviated as HSTS) is a security feature that lets a web site tell browsers that it should only be communicated with using HTTPS, instead of using HTTP. This tutorial will show you how to set up HSTS in Apache2, NGINX and Lighttpd. It is tested with all mentioned webservers, NGINX […]

Apache Configure CORS Headers for Whitelist Domains

Apache Configure CORS Headers for Whitelist Domains

 

 

In the current implementation of Cross Origin Resource Sharing (CORS) the Access-Control-Allow-Origin header can only provide a single host domain or a wildcard as the accept value. This is not optimal when you have multiple clients connecting to the same virtual server and simply want to […]

Linux: include hidden files in tar archive

When you create a tar archive of a directory tree the hidden files are normally not included. Here’s how to include the hidden files.

Say you have a web directory called “/var/www/html/mysite/” that contains the following tree:

.htaccess index.php logo.jpg style.css admin_dir/.htaccess admin_dir/includes.php admin_dir/index.php

Normally you would use the tar command like this:

tar […]

Reset your WordPress password via email

Reset your WordPress password via email

If you’ve forgotten your WordPress admin password, you can reset it via email from the WordPress dashboard login page following these steps:

Go to your WordPress login page (example.com/wp-admin) Click on Lost you password? at the bottom Enter the Username or E-mail of your WordPress admin user, then click […]

disable default webpage

Once it is done, you shall disable Apache’s default welcome page.

[root@rmohan.com ~]# sed -i ‘s/^/#&/g’ /etc/httpd/conf.d/welcome.conf

Also, prevent the Apache web server from displaying files within the web directory.

[root@rmohan.com ~]# sed -i “s/Options Indexes FollowSymLinks/Options FollowSymLinks/” /etc/httpd/conf/httpd.conf

After that, start and enable the Apache web server.

[root@rmohan.com ~]# systemctl start httpd.service [root@rmohan.com ~]# […]

Reverse Proxy for Node.js application using Apache

Node.js

Node.js is widely used to build web applications with real-time, two-way connections, where both the client and server can initiate communication, allowing them to exchange data freely. The best side is that we don’t need a host container for building a web app just means including a library that listens for HTTP requests on a port […]

mod_proxy apache 2.4

Using Apache with mod_proxy Related content Using Apache with virtual hosts and mod_proxy Using Apache with mod_jk Installing Confluence on Windows from Zip File Installing Confluence on Linux from Archive File Running Confluence behind Apache Still need help?

The Atlassian Community is here for you.

Ask the community

This page describes how to integrate Confluence […]

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