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Plesk / Nginx Open Files Limit

By on January 25, 2022 in Nginx, Plesk

Was trying to increase open files limit for nginx on a Plesk server following instructions here:

MariaDB on CentOS 7 – “Error in accept: Too many open files”

But the limit was not changing. After digging around I found that Plesk was overriding with a config file here:

As described here:

https://support.plesk.com/hc/en-us/articles/213938485-nginx-fails-to-start-reload-on-a-Plesk-server-Too-many-open-files

the easy way to fix open file limit on Plesk is to use:

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Fixing “Size of a request header field exceeds server limit.” error

By on October 15, 2021 in Apache, Uncategorized

This error from Apache is typically caused by a very large cookie. In Apache the “LimitRequestFieldSize” directive sets this limit. The default is 8190 bytes. To change the file create a file at:

/etc/httpd/conf.d/custom.conf

or

/etc/apache2/conf.d/custom.conf

containing the desired change:

Reload Apache after adding the file with:

/sbin/service apache2 restart

or

/sbin/service httpd restart

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AWS CLI V2 Install

By on July 2, 2021 in Uncategorized

Using the bundled installer it’s easy to install or upgrade to version 2 of the AWS CLI:

Here’s a link to full instructions:

https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2-linux.html

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Expires Header In Nginx On Plesk

By on June 28, 2021 in Nginx, Plesk

Trying to add an Expires header in Nginx on a Plesk server like this is problematic.

The “location” directive conflicts (overrides) the “location” directive created by Plesk. The work around is to disable “Serve static files directly by nginx” but this is a valuable feature that we usually don’t want to turn off.

An alternative is to use a “map” directive. Setup the map in the global nginx config by creating /etc/nginx/conf.d/expires_map.conf with:

Next in the “Additional nginx directives” field add:

This works well but may not be possible on a shared server where the global nginx configuration can not be changed.

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