Monitor Windows services with PowerShell

How to monitor Windows Servers with PowerShell

As a Windows Server and IIS administrator, you want your Windows services to run at all times. One can monitor Windows services in many, many, ways. Some of our customers websites may depend on certain services, which may be hard to monitor externally. For those Windows services that need local monitoring, I like to schedule a PowerShell script. Here is one…

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PHP, MySQL and IPv6: still slow

Years ago, I noticed that PHP connections to MySQL were significantly slower over IPV6 (host name with an IPv6 AAAA record), when no MySQL service listens on that address. The connection is refused, and PHP has to fallback to IPv4. The fallback takes a significant amount of time. Too much time if you’d asked me. Unfortunately this fallback to IPv4 is still slow today…

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How to set a good PHP realpath_cache_size

The PHP directive realpath_cache_size sets the size of the realpath cache to be used by PHP. Increasing realpath_cache_size might greatly improve PHP performance, as PHP states: “this value should be increased on systems where PHP opens many files.” Setting a correct value for PHP realpath_cache_size can greatly improve PHP performance and optimize WordPress – and other CMS’s – websites.

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Set or remove the read-only attribute assigned to files with PHP chmod

Chmod.php, change file attributes with PHP, to make files read only or normally accessible on Windows IIS servers. Sometimes you need chmod to make files read only on your website, or make them normally accessible in case they already are read only. For instance Drupal’s settings.php configuration file, or WordPress Contact Form 7 temporary captcha files, are examples of read-only files.

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