Categories
Server

Does CSF Firewall Make Your WHM / Server Slow ?

There are various reasons why CSF firewall may make your WHM / server slow.
Here are some personal tips from me.

Categories
Server

Find String in Files in Linux

To find some string within files in Linux, you can use this command

grep -rnw '/your/path/' -e "find this string"

-r means recursive
-n means line number
-w means match the whole word 🙂

Categories
JavaScript Programming

How to Install PhantomJS in cPanel / WHM Server

Here is what i did to install PhantomJS in cPanel / WHM 🙂

Categories
Server

How to Append Date and Time to Log File in Linux

If we want to get detailed log report, we can store multiple log files with date and time information on the file name 🙂

We can do this command in Linux :

your_command_here > /path_1/path_2/your_log_$(date +"%Y-%m-%d_%H-%M-%S").txt
Categories
Server

How to Delete Files in Directory in Linux

If you want to delete files within a directory in Linux, you can use this simple command

rm -f /your/directory/*

If you want to delete files and directories recursively within a directory in Linux, you can use this command instead 🙂

rm -rf /your/directory/*
Categories
Server

Empty a File Using Linux Command

Today i received an e-mail notification from cpanel that a partition in my server is almost full.
First i checked largest directories / files using this command :

du -h --max-depth=1 /some/path

Then i noticed that they were some log files which took space in my partition 🙂

Categories
Server

How to Remove Directory and Subdirectories Recursively in Linux

Sometimes there is occasion where deleting files from Cpanel takes a very long time to finish.
For example because there are too many files under a directory.
In this situation we can use SSH to delete a directory and all files and subdirectories under that directory.

We can use the command below.
But be careful, do not enter wrong path.
You may delete the wrong directory. 🙂

rm -rf /your/directory/
Categories
Server

How to Create and Extract Tar.gz File in Linux

How to create tar.gz in Linux :

tar -zcvf "archive.tar.gz" "file.sql"
tar -zcvf "archive.tar.gz" "/home/example/public_html/"

How to extract tar.gz in Linux :

tar -zxvf "archive.tar.gz"
Categories
Server

How to Install PECL Memcache in WHM / CentOS

You can run these commands to install PECL memcache (not memcached).
However, this memcache will work with memcached.

wget http://pecl.php.net/get/memcache-3.0.8.tgz
tar xvfz memcache-3.0.8.tgz
cd memcache-3.0.8
phpize
./configure
make
make install

Take note of the php extensions directory that memcache is installed in.
Mine is: /usr/local/lib/php/extensions/no-debug-non-zts-20020429/

Then add this line to your php.ini

extension="/usr/local/lib/php/extensions/no-debug-non-zts-20020429/memcache.so"
Categories
Server

How to Install Memcached in WHM / CentOS

I use Centos & WHM.
Here is how to install memcached (not memcache) using command line.

First, installing memcached

wget http://memcached.org/latest
tar -zxvf memcached-1.x.x.tar.gz
cd memcached-1.x.x
./configure && make && make test && sudo make install