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This only impact you if you use the affect versions with Log4J and Java, and have the vulnerable configs set to True, which I believe is default for most.

How did a crash of the database result in a total loss of the db tables? If the database crashes, the files may be corrupted but in many cases can be rolled back/recovered. Was it a drive/hardware issue? If so, consider sending the drive to a forensics lab if the data is really of importance...

Indeed. A backup does a SQL dump, which is basically a full read of the database, so some caches will be used in MySQL. That's normal, expected, and as Peter mentioned, just let the systems manage memory unless you're getting errors or issues. High cached memory usage won't result in lower...

Key here is "they're not waiting for free workers" - if you previously did not have enough workers, and now add more, more CPU will be used simply because it can be and needs to be. You'd get similar resource usage by increasing max_workers presumably,

Just the FPM for the pool - it's dependent. It's fine - the overhead on CPU/memory is generally minimal. You get the benefit of "better" isolation, plus unique OpCache pools for each site. My gripe is the total lack of documentation surrounding this. Take, for example, restarting all...

Not really the most ideal. You're adding a significant overhead by using PHP instead of Apache to process these rules. It may not be pretty, but I'd guess dropping a bunch of denys into ,htaccess will be signficantly faster.

Have you tried caching the page they refresh? Then just purge it once it is live?

Is WP Fastest setup correctly? Do you have caching via .htaccess on? Unless you know what you're doing, NGINX proxy cache doesn't actually work well with WordPress because of cookies. There is no need for varnish, though memcached could help. 300 what users? Forum? Woocom users trying to...

I mean, as expected HTTPD/PHP are burning up most of your cycles. There isn't really a whole lot you can do about that. Some minor tuning can be done (rp/op caching w/ PHP) - but importantly, are you using any server caching with WordPress?

What if you go to "Session Management" and check "Allow IP address changes during a single session"

Stick with NGINX / PHP-FPM, or even Apache. Not that big of a difference.

Look at your maillog - what does the delivery say?

I missed your head -n 5. It looks like it's mostly PHP-FPM processes. Is there a long-running task being spawned by your script?

As root?

Run ps aux / top?

Might be hard assuming he deleted it :) There is no real way to recover it if you have absolutely no backups. Maybe check with your service provider to see if they keep backups. If it was extremely important data, you may be able to ship it to a forensics lab and see what they can scrape off...

CTRL + SHIFT + J on chrome

Open your JS Console, and check for any errors

You cannot. Fail2ban IP/port bans operate at a network level, and use iptables to drop incoming connections. The incoming connection still comes from a Cloudflare IP and is simply rewritten to a different IP by Apache at an application level. You cannot rewrite the TCP SRC IP to the real IP like...

> In order to provide even a simple layer of security on SSH, we change the port. You really don't add any security by changing the SSH port. That's silly. > Now I'm wondering what if ssh fails and we are not able to access it through third party programs like Putty? The Terminal option...