nginx – Page 5 – Tarik Billa

How to write a url rewrite in nginx?

December 23, 2023 by Tarik

The code above will not work because of a missing $ and poor use of the return command. The code below works with Nginx, including version 0.8.54. Format below is : DesiredURL Actual URL Nginx_Rule They must be inside location / {} http://example.com/notes/343 http://example.com/notes.php?id=343 rewrite ^/notes/(.*)$ /notes.php?id=$1 last; http://example.com/users/BlackBenzKid http://example.com/user.php?username=BlackBenzKid rewrite ^/users/(.*)$ /user.php?username=$1 last; http://example.com/top … Read more

Anonymize IP logging in nginx?

December 22, 2023 by Tarik

Even if there is already an accepted answer, the solution seems not to be valid. nginx has the log_format directive, which has a context of http. This means, the log_format can only be (valid) set within the http {} section of the config file, NOT within the server sections! On the other hand we have … Read more

Nginx – Do I really need sites-available and sites-enabled folders?

December 22, 2023 by Tarik

No, they are not needed if you define your server blocks properly in nginx.conf, but it’s highly suggested. As you noticed, they are only used because of the include /etc/nginx/sites-enabled/*; in nginx.conf. For curiosity, is there a reason why you do not want to use them? They are very useful; easier to add new sites, … Read more

display_errors for php5-fpm not working with nginx

December 21, 2023 by Tarik

Really logging the POST request body (instead of “-“) with nginx

December 21, 2023 by Tarik

Nginx doesn’t parse the client request body unless it really needs to, so it usually does not fill the $request_body variable. The exceptions are when: it sends the request to a proxy, or a fastcgi server. So you really need to either add the proxy_pass or fastcgi_pass directives to your block. The easiest way is … Read more

How to parse several log nginx files using goaccess

December 20, 2023 by Tarik

Quoting the man page and assuming you have a Combined Log Format: If we would like to process all access.log.*.gz we can do one of the following: # zcat -f access.log* | goaccess –log-format=COMBINED OR # zcat access.log.*.gz | goaccess –log-format=COMBINED On Mac OS X, use gunzip -c instead of zcat.

X-Frame-Options in nginx to allow all domains

December 20, 2023 by Tarik

Solved it by changing proxy_hide_header values in /etc/nginx/sites-available/default file like so: proxy_hide_header X-Frame-Options; Needed to restart nginx as well as use pm2 to restart my nodejs server (for some reason, it didn’t work till I made a small change to my server and restarted it).

http_sub_module / sub_filter of nginx and reverse proxy not working

December 19, 2023 by Tarik

Check if the upstream source has gzip turned on, if so you need proxy_set_header Accept-Encoding “”; so the whole thing would be something like location / { proxy_set_header Accept-Encoding “”; proxy_pass http://upstream.site/; sub_filter_types text/css; sub_filter_once off; sub_filter .upstream.site special.our.domain; } Check these links https://www.ruby-forum.com/topic/178781 https://forum.nginx.org/read.php?2,226323,226323 http://www.serverphorums.com/read.php?5,542078

How to set nginx max open files?

December 19, 2023 by Tarik

On CentOS (tested on 7.x): Create file /etc/systemd/system/nginx.service.d/override.conf with the following contents: [Service] LimitNOFILE=65536 Reload systemd daemon with: systemctl daemon-reload Add this to Nginx config file: worker_rlimit_nofile 16384; (has to be smaller or equal to LimitNOFILE set above) And finally restart Nginx: systemctl restart nginx You can verify that it works with cat /proc/<nginx-pid>/limits.

How to avoid nginx “upstream sent too big header” errors?

December 19, 2023 by Tarik

Came across this error recently. Since Passenger 3.0.8 there is now a setting that allows you to set the buffers and buffer size. So now you can do http { … passenger_buffers 8 16k; passenger_buffer_size 32k; } That resolved the issue for me.