Modificando seus arquivos de hosts

Algumas vezes precisamos fazer com que nossa máquina seja acessada como determinado domínio, principalmente na fase de desenvolvimento de um site, antes de colocá-lo em produção, para que possamos simular o seu correto funcionamento.

Para fazer isso, edite seu arquivo de hosts:

• c:\Windows\System32\Drivers\etc\hosts (Windows)
• /etc/hosts (Linux)

No windows você verá o seguinte conteúdo:

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#	127.0.0.1       localhost
#	::1             localhost

127.0.0.1	localhost

Adicione no final do arquivo a linha “127.0.0.1 www.seudominio.com.br”:

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#	127.0.0.1       localhost
#	::1             localhost

127.0.0.1	localhost
127.0.0.1	www.seudominio.com.br

Salve, e a partir de agora, quando você digitar o endereço http://www.seudominio.com.br em seu navegador, abrirá o site que está hospedado no servidor web localizado em sua máquina.