Memcached (Memcache Daemon) is a caching daemon designed especially for dynamic web applications to decrease database load by storing objects in memory. It is commonly used to speed up dynamic database-driven websites by caching data and objects in server memory to reduce the number of times the data source must be read. Memcached is free and open-source software, […]
SCP Linux – Securely Copy Files Using SCP examples
January 31, 2019 by Hayden James, in Blog LinuxThis post includes SCP examples. SCP or secure copy allows secure transferring of files between a local host and a remote host or between two remote hosts. It uses the same authentication and security as the Secure Shell (SSH) protocol from which it is based. SCP is loved for it’s simplicity, security and pre-installed availability. SCP […]
PHP 5.6 EOL (End of Life) – PHP 7 Compatibility Check
January 23, 2019 by Hayden James, in Blog LinuxSummary: PHP 7.3 benchmark, how to check your PHP scripts/apps for PHP 7 compatibility, upgrade to PHP 7 ASAP, confirm OpCache is enabled/monitored and some php.ini optimization tweaks. PHP 5.6 and PHP 7.0 to hit EOL this year! reached EOL last Year! (2018) PHP 5.6 was first released back in 2014, with alpha 1 released in January 2014. […]
Choosing the Best Linux Server Distro 2019
January 21, 2019 by Hayden James, in Blog LinuxAre you trying to decide on a Linux server distro (distribution) in 2019? This article will help guide you based on the strengths of the Linux server distributions available. If you are looking for desktop advice, have a look at Choosing the Best Linux Distro 2019, for Desktop. Best Linux Server distro 2019 The first […]
Finding Linux Compatible Printers 2019
January 20, 2019 by Hayden James, in Blog LinuxHere’s all the info and links needed to find a printer or all-in-one printer that supports Linux in 2019. If you don’t want to spend hours comparing printers, have a look at my recommended Linux compatible printers. Last updated January 20th 2019. This is the promised update as per the comments section below, sorry about the delay! Fixed broken […]
Best WordPress Cache Plugin 2019
January 20, 2019 by Hayden James, in Blog LinuxUpdate January 20th, 2019: Hyper Cache is now being actively developed again. Thus, it has returned as my #1 go-to WP Cache plugin. Changes marked in green. This blog post was originally posted just over 4 years ago. WordPress Cache plugin options have changed a lot since. As such, I’m updating this list of 5 best WordPress plugins. Are you […]
Could not increase number of max_open_files to more than… (Solution)
December 5, 2018 by Hayden James, in Blog LinuxA quick solution to the warning “Could not increase number of max_open_files to more than” when starting MySQL or MariaDB. For some background read How MySQL Opens and Closes Tables. Here’s an excerpt: “The table_open_cache and max_connections system variables affect the maximum number of files the server keeps open. If you increase one or both of these […]
Tuning MySQL: my.cnf, avoid this common pitfall!
December 3, 2018 by Hayden James, in Blog LinuxCaution: Don’t overwrite my.cnf all at once. Backup data and config, make one or two changes per restart, test extensively. It took me some time to decide the title for this article. MariaDB has been fast replacing MySQL as a growing number of Linux distributions now default to MariaDB over MySQL. MariaDB is an enhanced drop-in replacement […]
Analyze Your Website’s TTFB (Time to First Byte)
December 2, 2018 by Hayden James, in Blog LinuxHave you improved load time of your websites and web applications recently? Or, maybe your web store or other web app is now slower to respond as you’ve added more features or due to data growth? The time it takes for your web applications to respond when users visit, is more important than ever before! […]
Measure Linux web server memory usage correctly
November 11, 2018 by Hayden James, in Blog LinuxImportant update: This article was originally posted back in 2014. However, as I later posted in 2017 in the blog post Does your Linux server need a RAM upgrade? Lets check with free, top, vmstat and sar …there was a Linux kernel change to address this in 2016. Hopefully, this change will motivate New Relic and others to follow […]
MySQL Query Cache for Performance, Avoid This When Tuning
November 7, 2018 by Hayden James, in Blog LinuxUpdate: MySQL query cache is deprecated as of MySQL 5.7.20, and is removed in MySQL 8.0. – mysql.com One of the most misconfigured MySQL performance features, is MySQL query_cache_size. This post references a web server with 32 gigabytes of RAM where the existing config had MySQL’s query cache size set incorrectly to 4 gigabytes. The thought behind it seemed […]