Nginx upstream timed out (110: Connection timed out) while reading response header from upstream is pretty common error. Lets find out why it happens and how to avoid it.
When you get this error, it usually means your upstream is slow and while there are couple easy fixes which I’ll show below, …
“HAProxy vs Nginx, which one should I choose??” – I get asked this question almost every day and while I’m not a fan of “vs” style posts, I’ll try to express my opinion on the topic that may or may not help you to select a product for your particular use case. …
Nginx resolver is playing very important part in creating fault tolerant setups, especially when it comes to the free open source version. In this article I’ll explain why we need Nginx resolver and how it works.
I remember the moment about a year or so ago when I came to the office and found people screaming that one of our sites was hacked. …
Today I wanted to write a little useful tip for people trying to do POST requests to static files. Apparently Nginx returns 405 not allowed response in those cases.
Here are the couple workarounds to get you going again:
server {
listen 80; ...
Nginx Access-Control-Allow-Origin header is part of CORS standard (stands for Cross-origin resource sharing) and used to control access to resources located outside of the original domain sending the request.
This standard was created to overcome same-origin security restrictions in browsers, that prevent loading resources from different domains. …
Nginx server_name is a special directive used for server block configuration selection. Let say you have multiple server sections in your Nginx config file:
server {
listen 80;
server_name test.com;
...
}
server {
listen 80;
server_name example.com;
...
}
When we get incoming request with test.com “Host” …
If you are running some kind of e-commerce store, it’s quite possible that your product images are protected with watermark. At the same time original uploaded images are not available for public access.
All nice and good! But what if some of your partners request access to original images without watermarks? …
I was happily eating my apple when one of our developers reached out to me with strange issue. Basically he couldn’t fall asleep and decided to go through our mysql binlogs files ( yeah, I know! 🙂 ).
Anyways, earlier this week we discovered some issues with our shipping labels being rejected and our provider said that we were sending duplicate ids. …
Prerequisites
Here is real world scenario: You have this project you are working on, it requires php 5.3 ( yeah, old I know 🙂 ) in fpm mode + xdebug + nginx and maybe something else (database?). You spent couple days configuring all that stuff on your workstation and everything works.. …
From time to time your Logstash process may crash and you start seeing gaps on your Kibana graph (you graph logs and monitor those, right? ). That may also, coincidentally?, correlate with downtime you had 10 minutes ago.. So you need to replay missing events back into Logstash and figure out what happened. …