Categoria: Linux & Servidores

Sub-categorias

• Apache (5)

• MySQL (1)

• NGINX (6)

Socket backlog tuning for apache

6 anos atrás

With more clients moving to the mobile world web traffic changes somewhat and new challenges rise. One particular challenge related to the fact that mobile customers are not as fast as broadband ones and they create all kinds of problems related to big roundtrip latency. One of the problems ...

• Apache
• backlog
• socket

Using Free Let’s Encrypt SSL/TLS Certificates with

7 anos atrás

Editor – This is an update to a previous blog post about using Let’s Encrypt certificates with NGINX. This new blog is based on newly added NGINX support in certbot. Also see our blog post from nginx.conf 2015, in which Peter Eckersley and Yan Zhu of the Electronic Frontier ...

• Certificate Authority (CA)
• Let's Encrypt
• Nginx
• security certificate
• SSL/TLS

Setup Nginx as web server and as reverse proxy for

7 anos atrás

We know that Nginx is more faster than Apache and most of us prefer to replace Apache with Nginx as their web server. Nginx is known to serve faster static content and run with less RAM. As of this writing, Virtualmin supports Apache as its web server. To take advantage of Nginx, we will ...

• Apache
• Nginx

Descompacte vários arquivos da linha de comando do

7 anos atrás

Aqui vai uma dica rápida que irá ajudá-lo a trabalhar com vários arquivos zip na linha de comando. Se você está em uma pasta e tem três arquivos zip nele (a.zip, b.zip, c.zip) que você deseja descompactar, “sem problema”, você pensa. “Eu posso cuidar disso com um único ...

• Command line
• linux

How To: Solve PHP-FPM server reached max_children

8 anos atrás

There are many possible reasons why your PHP-FPM would reach the max_children. Most common ones are: A lot of concurrent site visitors Slow execution of the PHP scripts due to server resources or buggy scripts Very low setting of max_children setting in php-fpm config If you have a busy ...

• Apache
• Nginx
• PHP
• Php-fpm

Example .htaccess Code Snippets

8 anos atrás

Here are some specific examples taken from the Htaccess Guide. Redirect Everyone Except IP address to alternate page [crayon-6766b7a047d9a368515850/] When developing sites This lets google crawl the page, lets me access without a password, and lets my client access the page WITH a password. ...

• Apache
• htaccess
• Wordpress

How to Use Let’s Encrypt SSL Certificate Automatic

8 anos atrás

Since Webmin 1.78 and Virtualmin 5.0, Webmin can request an SSL certificate for itself from Let’s Encrypt, the free, automated and open certificate authority (CA), if you have the letsencrypt client command installed. The built-in Let’s Encrypt feature in Webmin and Virtualmin makes it very ...

• Let's Encrypt
• Virtualmin
• Webmin

VirtualMin WordPress Nginx Permalinks

8 anos atrás

VirtualMin WordPress Nginx Permalinks If you want to use Virtualmin with nginx, there are two nice tutorials (Using Nginx with Virtualmin and Virtualmin with NGINX+PHP-FPM+OPCACHE). To get the WordPress permalinks to work, do the following: Go to Virtualmin > Services > Configure ...

• Nginx
• Virtualmin
• Wordpress

MySQL 5.7 Performance Tuning Immediately After Ins

8 anos atrás

This blog updates Stephane Combaudon’s blog on MySQL performance tuning, and covers MySQL 5.7 performance tuning immediately after installation. A few years ago, Stephane Combaudon wrote a blog post on Ten MySQL performance tuning settings after installationthat covers the (now) older ...

• MySQL
• Performance

Como copiar um diretório recursivamente de um Host

9 anos atrás

Para copiar um diretório de um servidor remoto para o servidor local: [crayon-6766b7a04a0a9048732035/] Para copiar um diretório de local para um servidor remoto@ [crayon-6766b7a04a0b0588436105/] Comando: man scp -r   Copiar recursivamente diretórios inteiros   ...

• Dicas
• linux

9 Tips for Improving WordPress Performance

9 anos atrás

WordPress is the single largest platform for website creation and web application delivery worldwide. About a quarter of all sites are now built on open source WordPress software, including sites for eBay, Mozilla, RackSpace, TechCrunch, CNN, MTV, the New York Times, the Wall Street ...

• Performance
• tips
• Wordpress

Creating NGINX Rewrite Rules

9 anos atrás

In this blog post, we discuss how to create NGINX rewrite rules (the same methods work for both NGINX Plus and the open source NGINX software). Rewrite rules change part or all of the URL in a client request, usually for one of two purposes: To inform clients that the resource they’re ...

• Nginx
• permalinks
• rewrite

How To Install and Configure DKIM with Postfix on

9 anos atrás

Introduction The frustration of getting falsely flagged as a spammer is not strange to most of the mail server admins. By excluding the possibility of a compromised server, a false flag is usually caused by one of the following: the server is an open mail relay the sender’s or ...

• Postfix

Compressing files under Linux or UNIX cheat sheet

10 anos atrás

Both Linux and UNIX include various commands for Compressing and decompresses (read as expand compressed file). To compress files you can use gzip, bzip2 and zip commands. To expand compressed file (decompresses) you can use and gzip -d, bunzip2 (bzip2 -d), unzip commands. Compressing files ...

• comandos

How TCP backlog works in Linux

10 anos atrás

When an application puts a socket into LISTEN state using the listen syscall, it needs to specify a backlog for that socket. The backlog is usually described as the limit for the queue of incoming connections. Because of the 3-way handshake used by TCP, an incoming connection goes through ...

• socket
• TCP

Top 10 Mistakes to Avoid in Business Website Hosti

10 anos atrás

We all learn from our own mistakes in one way or the other. However, don’t you think it’s better to learn from others’ mistakes than doing it ourselves and then repent of them? If it’s about hosting your commercial website, you can’t afford making a single mistake.  An hour of downtime can ...

• host

Important Shortcuts For Linux Beginners

10 anos atrás

Ctrl + Alt + F1 You would already know that Linux can support various terminals. This command helps you move to the first terminal from wherever you are. Ctrl + Alt + Fn (n=1..6) In the standard setup, Linux can support a total of 6 terminals. This command lets you move to the terminal of ...

• linux

Top 15 Examples of Practical Grep Commands In Linu

10 anos atrás

Here we present on-going 15 Examples series, where 15 detailed examples will be offered for a particular command or functionality. The current article describes 15 practical examples of Linux grep command that will be useful to both newbies as well as experts. EFYTImes.com explores how you ...

• linux

Preventing DDOS aplification open resolver attack

11 anos atrás

DDOS Attack  by open DNS resolver: Open dns resolver provides name resolution to any network outside your network. This means any one can use your server to resolve the host name and also use it to attack other server by spoofing as your server. This in return consume your server bandwidth ...

• DDOS
• DNS

Driver NVidia no Debian 7 Wheezy GNU/Linux

11 anos atrás

Veremos como instalar o driver de vídeo proprietário NVIDIA em sistemas Debian via repositório Wheezy, onde podemos instalar drivers mais recentes via repositórios SID ou baixando diretamente do site da NVidia. IDENTIFICAÇÃO A unidade de processamento gráfico NVIDIA (GPU) series/codinome de ...