Running out of Memory. Driving me nuts

April 2, 2016 1.9k

Nginx WordPress

Hi, I have an Ubuntu server with 512 MB Memory and 20 GB Disk.

It is currently running Ngninx and one Wordpress site, and constantly running out of memory.

I have also created a swap file, but it doesn't help. It stills runs out of memory.

I am out of ideas and articles to read. Please help!

3 comments

tagin April 3, 2016
Is mysqld running out of memory?

You might be getting hit with XML-RPC attacks (seems to be a popular thing these days), which cause the out-of-memory condition.

See these two links:
https://www.digitalocean.com/community/questions/error-establishing-a-database-connection-wordpress
https://www.digitalocean.com/community/tutorials/how-to-protect-wordpress-from-xml-rpc-attacks-on-ubuntu-14-04

How To Protect WordPress from XML-RPC Attacks on Ubuntu 14.04
WordPress is a popular and powerful CMS (content management system) platform. Its popularity can bring unwanted attention in the form of malicious traffic specially targeted at a WordPress site. There are many instances where a server that has not been protected or optimized could experience issues or errors after receiving a small amount of malicious traffic. This guide will show you how to protect WordPress from XML-RPC attacks on an Ubuntu 14.04 system.
elia April 3, 2016
Yes I am having many of these XML-RPC attacks and decided to implement the changes to the vi /etc/nginx/sites-available/wordpress conf.

How can I verify that it works?
Can my server still be underdimensioned because of these attacks?
newbie April 4, 2016
check for the return code in your access log file. it should change to 500 instead of 200

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