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Limit requests per IP on Nginx using HttpLimitZoneModule and HttpLimitReqModule except whitelist

– Make sure to check Nginx, PHP posts for information on Nginx and PHP setup and configuration.

Nginx offers two modules, HttpLimitReqModule and HttpLimitZoneModule, to limit simultaneous connections for the assigned session and the number of requests for a given session from one IP address. Basically these modules are built to protect the web server from possible DDos attacks; For example, this configuration limits remote clients to no more than 20 concurrently “open” connections per remote ip address:

http{
    limit_conn_zone  $binary_remote_addr zone=concurrent:10m;
    limit_conn_log_level warn;
    limit_conn  concurrent  20;

Install Sphinx 2.0.4 on CentOS 6.2

– Make sure to check CentOS, PHP-FPM, Nginx, memcached and MYSQL posts.

– Get fresh RPM from sphinxsearch.com

– Install Sphinx

rpm -Uhv http://sphinxsearch.com/files/sphinx-2.0.4-1.rhel6.x86_64.rpm

– Create sample MySQL database

install memcached 1.4.13 on CentOS 6.2

– Make sure to check PHP-FPM and MYSQL posts.

– One of the dependencies of memcache is libevent, get latest version from libevent.org

mkdir libevent
cd libevent
wget https://github.com/downloads/libevent/libevent/libevent-2.0.17-stable.tar.gz
tar xfz libevent-2.0.17-stable.tar.gz
cd libevent-2.0.17-stable

– get latest version from memcached.org

Configuring vsFTPd on CentOS with different port

Check Installing CentOS 6.2 on VMware post.

– make sure SELINUX is disabled and iptables is configured for FTP

– add ftp user

adduser ftpuser -g ftp -s /sbin/nologin -d /server
#set password
passwd ftpuser

– configuration, more info

Sitemap Creator 0.2 beta

New Version is available. Click here

Sitemap Creator crawls/spiders your website creating XML sitemaps compatible with the standard sitemaps.org protocol supported by Google, Yahoo!, MSN and MoreOver. The script pings Google, Yahoo!, MSN and MoreOver bots to download the sitemap file, then tracks the bot and sends you an email on every scan to your Sitemap and gives you a full report of the Search Engine respond.
Sitemaps are created from a CSV file which could easily be edited using any text editor before creating the sitemap.