If you host your blog yourself, you will need some commands from time to time. To avoid having to google it every time, I have created this overview that serves various purposes. It can be used regardless of whether you have compiled Nginx yourself or installed a ready-made package. Install SSL certificate with certbot: Test Nginx configuration:
Nginx hosting: common commands Read Post »
If you run a small private blog like this one and have a sufficiently fast internet connection (uploading is particularly important), you can consider hosting it directly at home. There are some advantages to this, but there are also new challenges. Here I explain the steps that are necessary to reach 100 - 200 visitors per day.
Host WordPress blog at home in 3 steps Read Post »
If you run a small blog, you may think that a secure password or two-factor authentication are not that important. However, this is a fallacy: even a blog with only a few dozen hits a day is sufficiently in the focus of "hackers" that there are several login attempts a day. Using a fail2ban plugin (I use https://wp-fail2ban.com/)
Why WordPress security is important Read Post »
If you want to store as little data as possible for data protection reasons - GDPR is the keyword - you can define a corresponding log file format. This will anonymize both IPv4 and IPv6 addresses. Unfortunately, no new format can be defined for the error logs - however, a legitimate interest in smooth operation can be assumed here even if the storage period is sufficiently short. The
Nginx: Do not save IP address in log files Read Post »
Some time ago, I changed the domain of my blog - from www.kadder.de to www.techblogger.net. There was a pitfall with the use of Let's encrypt. The approach: when the domain is changed, the old domain should of course be forwarded to the new one. The problem: if the certificate of the old domain expires, SSL calls lead to
Let's encrypt: Pitfalls with domain change Read Post »
If you use the Nginx pagespeed module - as I do on tech-blogger.net and routerzwang.de - you should also keep it up to date. This can save you a lot of troubleshooting. If you already compile Nginx yourself and use the "ngx_pagespeed" module, you not only need to keep Nginx up to date, which has brought HTTP/2 support in the latest versions, but also the
Nginx: keep ngx_pageespeed up to date Read Post »
If you want to further optimize the execution speed of PHP scripts, sooner or later you will stumble across HHVM - a just-in-time compiler for PHP. HHVM can be easily installed via the Debian package management. Once this is done, it can basically be used like php5-fpm. I have left all the rest of the configuration within Nginx - this allows good
Nginx: PHP alternative HHVM Read Post »
If you want WordPress to be really fast, at a certain point you won't get any further with standard caching plugins. Nginx with HTTP2 can help. Since version 1.9.5, the open-source version of Nginx also supports the HTTP/2 protocol directly - so tedious configuration or the use of patches is no longer necessary. English Version below The HTTP/2 implementation is running -
Pagespeed: Load WordPress in under 1s (Nginx + HTTP/2) Read Post »
HTTP/2 is supported by more and more browsers, but there are still some problems with web servers. A first patch has now been released for Nginx that integrates the new protocol. Of course, this first requires Nginx itself to be compiled. I use the current mainline branch (currently 1.9.4) as a basis, and OpenSSL 1.0.2 must also be installed.
Nginx: HTTP/2 available via alpha patch Read Post »
If you use WordPress with mod_pagespeed or ngx_pagespeed and use the combine_css filter, you will notice that nothing happens. What can be done? The reason for the problems: The Pagespeed module does not take into account CSS embeddings that have different IDs. WordPress sets the name of the CSS as the ID for the integration, and in the end it looks like this: link rel='stylesheet'
Pagespeed: combine_css with WordPress Read Post »
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