Dam Viet vietdien2005

Firstly, install the dev tools you’re doing to need.

yum -y groupinstall "Development Tools" yum -y install libev libev-devel zlib zlib-devel openssl openssl-devel git Next, we’re going to store a few things in /var/tmp and install the new version of openssl into /opt/openssl

mkdir /var/tmp cd /var/tmp wget https://www.openssl.org/source/openssl-1.0.2-latest.tar.gz tar -zxf openssl-1.0.2-latest.tar.gz

Command

grep -o "[0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+" /var/log/nginx/access.log

Unique IPs

grep -o "[0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+" /var/log/nginx/access.log | sort | uniq

Commands Check Performance Disk

Commands

Reading speed cache/buffer: hdparm
Check cache reading speed: hdparm
Sequential write speed: dd
Check iops when random read/write (block 4K): fio

	# Stop MySQL
	```bash
	sudo /etc/init.d/mysql start
	```
	# Make MySQL service directory & give MySQL user permission to write to the service directory.
	```bash
	sudo mkdir /var/run/mysqld && sudo chown mysql: /var/run/mysqld
	```
	# Start MySQL manually, without permission checks or networking.
	```bash

	version="3.4.1"

	echo "Installing OpenCV" $version
	mkdir OpenCV
	cd OpenCV

	echo "Removing any pre-installed ffmpeg and x264"
	sudo apt-get -qq remove ffmpeg x264 libx264-dev

	echo "Installing Dependenices"

	<?php

	include 'simple_html_dom.php';

	function crawlDetail($url)
	{
	$html = file_get_contents($url);
	$html = str_get_html($html);

	$info = [];

Dam Viet vietdien2005

Commands Check Performance Disk

Commands

Usage hdparm

Usage `hdparm`