Opening Ports In CSF Firewall

CSF can be configured in Web Host Manager (WHM) as well as over ssh. You need to open up the following file: nano /etc/csf/csf.conf and add the port you mean to open to the needed line: # Allow incoming TCP portsTCP_IN = "20,21,22,25,53,80,110,143,443,465,587,993,995,26"# Allow outgoing TCP portsTCP_OUT = "20,21,22,25,37,43,53,80,110,113,443,587,873" CSF then needs to be restarted for the...

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How To Optimize Your Site With HTTP Caching

I’ve been on a web tweaking kick lately: how to speed up your javascript, gzip files with your server, and now how to set up caching. But the reason is simple: site performance is a feature. For web sites, speed may be feature #1. Users hate waiting, we get frustrated by buffering videos and pages that pop together as images slowly load. It’s a jarring (aka bad) user experience....

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How to check if your Linux server is under DDOS Attack?

Login to your server as root and fire the following command, using  which you can check if your server is under DDOS attack or not:netstat -anp |grep ‘tcp\|udp’ | awk ‘{print $5}’ | cut -d: -f1 | sort | uniq -c | sort –nThis command will show you the list of IP’s which have logged in is maximum number of connections to your server. ddos becomes more complex as attackers  use fewer connections with more number of attacking IP’s.In such cases, you should get less number of connections...

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What's in the wp-config.php File?

The items that come with the default wp-config-sample.php file are in blue. All extra items that you can add are in black, as normal (only add these if you're going to use them). Database Settings DB_NAME : Database Name used by WordPress DB_USER : Username used to access Database DB_PASSWORD : Password used by Username to access Database DB_HOST : The hostname...

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