In Apache's default configuration, if you don't explicitly define ErrorLog and CustomLog directives within a VirtualHost block, the server will automatically use the main server's error and access logs defined in the global configuration. This can lead to cluttered log files when you want to completely suppress logging for specific virtual hosts.

To completely disable logging for a particular virtual host, you need to explicitly configure both error and access logs to discard the output. Here's how to implement this:

<VirtualHost *:80>
    ServerName example.com
    DocumentRoot /var/www/example
    
    # Disable error logging
    ErrorLog /dev/null
    
    # Disable access logging
    CustomLog /dev/null common
    
    # Alternative for access log (works on Windows too)
    # CustomLog "|bin/rotatelogs /dev/null 5M" common
    
    # Rest of your configuration...
</VirtualHost>

The solution above uses Unix/Linux specific /dev/null. For Windows systems, you can use:

ErrorLog "nul"
CustomLog "nul" common

If you want more control rather than completely disabling logs, consider conditional logging based on environment variables:

<VirtualHost *:80>
    ServerName example.com
    DocumentRoot /var/www/example
    
    SetEnvIf Request_URI "^" dontlog
    CustomLog logs/access_log common env=!dontlog
</VirtualHost>

After making these changes, always verify your configuration:

apachectl configtest
systemctl restart apache2

While disabling logs can be useful for certain hosts, be aware that this:

• Removes visibility into potential security issues
• Makes troubleshooting more difficult
• Should only be done for non-critical virtual hosts

Apache's default configuration automatically logs all access and errors to the main log files when no specific logging directives are defined within a VirtualHost block. This behavior can create unnecessary log clutter when you want to completely disable logging for a particular virtual host.

To completely suppress both access and error logging for a specific virtual host, add these directives inside your VirtualHost configuration:

    ServerName example.com
    DocumentRoot /var/www/example
    
    # Disable access log
    CustomLog /dev/null combined
    # Alternative for Apache 2.4+
    CustomLog "|/bin/cat" combined
    
    # Disable error log
    ErrorLog /dev/null
    # Alternative for better performance
    ErrorLog "|/bin/cat"
    
    # For Apache 2.4+, you can also use
    ErrorLog "off"

While sending logs to /dev/null works, using pipe to /bin/cat (Apache 2.4+) is more efficient as it avoids filesystem operations. The most modern approach is simply using ErrorLog "off" directive in Apache 2.4+.

If you need to maintain some logging while reducing verbosity:

    ServerName example.com
    
    # Minimal error logging (only critical errors)
    LogLevel crit
    ErrorLog /var/log/apache2/example-error.log
    
    # Access log with reduced information
    CustomLog /var/log/apache2/example-access.log "%h %l %u %t \"%r\" %>s %b"

After making these changes:

1. Test configuration with apachectl configtest
2. Reload Apache: systemctl reload apache2
3. Verify no new entries appear in default logs for this host