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SYN_SENT in wflogs/[filename].php

aberbenni — Mon, 07 Oct 2024 21:15:41 +0000

Hello, my hosting provider notifies me that earlier today they received several emails from their system containing the following:

lsphp 255641 username cwd DIR 253,0 4096 17015496 /home/username/website/wp-admin
lsphp 255641 username 7u REG 253,0 51 21152705 /home/username/website/wp-content/wflogs/ips.php
lsphp 255641 username 8u REG 253,0 560 21152784 /home/username/website/wp-content/wflogs/config.php
lsphp 255641 username 9u REG 253,0 40083 21112604 /home/username/website/wp-content/wflogs/attack-data.php
lsphp 255641 username 10u REG 253,0 14218 21116318 /home/username/website/wp-content/wflogs/config-synced.php (deleted)
lsphp 255641 username 11u REG 253,0 37889 21112666 /home/username/website/wp-content/wflogs/config-livewaf.php
lsphp 255641 username 12u REG 253,0 1545298 21153461 /home/username/website/wp-content/wflogs/config-transient.php
lsphp 255641 username 14u IPv4 2263568748 0t0 TCP localhost:40946->localhost:memcache (SYN_SENT)
lsphp 257665 username cwd DIR 253,0 4096 17016270 /home/username/website
lsphp 257665 username 7u REG 253,0 51 21152705 /home/username/website/wp-content/wflogs/ips.php
lsphp 257665 username 8u REG 253,0 560 21152784 /home/username/website/wp-content/wflogs/config.php
lsphp 257665 username 9u REG 253,0 40083 21112604 /home/username/website/wp-content/wflogs/attack-data.php
lsphp 257665 username 10u REG 253,0 14218 21112680 /home/username/website/wp-content/wflogs/config-synced.php (deleted)
lsphp 257665 username 11u REG 253,0 37889 21112666 /home/username/website/wp-content/wflogs/config-livewaf.php
lsphp 257665 username 12u REG 253,0 1545298 21153461 /home/username/website/wp-content/wflogs/config-transient.php
lsphp 257665 username 14u IPv4 2263561840 0t0 TCP localhost:40924->localhost:memcache (SYN_SENT)
lsphp 265986 username cwd DIR 253,0 4096 17016270 /home/username/website
lsphp 265986 username 7u REG 253,0 51 21152705 /home/username/website/wp-content/wflogs/ips.php
lsphp 265986 username 8u REG 253,0 560 21152784 /home/username/website/wp-content/wflogs/config.php
lsphp 265986 username 9u REG 253,0 40083 21112604 /home/username/website/wp-content/wflogs/attack-data.php
lsphp 265986 username 10u REG 253,0 14216 21116535 /home/username/website/wp-content/wflogs/config-synced.php (deleted)
lsphp 265986 username 11u REG 253,0 37889 21112666 /home/username/website/wp-content/wflogs/config-livewaf.php
lsphp 265986 username 12u REG 253,0 1545298 21153461 username/wp-content/wflogs/config-transient.php
lsphp 265986 username 14u IPv4 2263533408 0t0 TCP localhost:40930->localhost:memcache (SYN_SENT)

These notifications are sent by their firewall to indicate that it has blocked its service because it is making anomalous connections, of type SYN_SENT, which are usually attributable to outward DDoS attacks.

If the firewall performs this type of action, it means that something abnormal or “different than usual” is being performed.

Memcache

Starhorsepax2 — Wed, 20 Mar 2024 17:14:56 +0000

We’d like to enable Memcache with this. So far all we see is the choice to abandon Hummingbird AND Smush for another plugin (probably A2, inconvenient) or not use meme cache. Isn’t there a way to implement it with it? Or can you recommend a code snippet or something? It is enabled on our server.

Multiple WordPress on one server

Andyt8 — Wed, 07 Feb 2024 17:21:01 +0000

Hello, I have a question about the support of several WordPress on the same server. I have a setup with several WordPress installation. Some of them use PHP8.2, other use PHP8.3 and so on…

I startet to use the plugin on a demo WordPress with PHP8.3 and it startet running. However, I disabled it and enabled it on a different WordPress with PHP8.2 and it work too.

My problem, it don’t work if the plugin is already enabled and I try to enable it on another installation. I see the message “plugin enabled” but after a reload it is still disabled. It look like there is a check for that…

Is it possible to support such situation? Maybe a “salt” or “hash” for every installation?

best regards, Andyt

Antis Spam Plugin prevent Site Ground Memcache from working

manalan77 — Thu, 17 Aug 2023 22:49:36 +0000

Site Ground have sent me this email in response to my concerns as to why the Memcache was not working:

the website was still not being cached dynamically and that is due to the “cleantalk-spam-protect” plugin as it continued to add no-cache headers. As soon as I deactivated the plugin, the Dynamic Cache started working as expected as per the following CURL test

They then said:

And if you wish to keep on using the CleanTalk plugin, then you should discuss this further with their support team on how exactly to remove the headers added by the plugin which currently affect the functionalities of the dynamic cache.

As this plugin has been Deactivated to attain the Memcache feature for several hours, I would appreciate your earliest advice about this, as I am concerned about my website’s security without this plugin being Activated.

Thanks Alan

Plugin could not be activated because it triggered a fatal error.

ingenuity — Tue, 25 Jul 2023 08:59:04 +0000

Plugin could not be activated because it triggered a fatal error.

Fatal error: Cannot redeclare wp_cache_add() (previously declared in /home/audubonartists/public_html/wordpress/wp-includes/cache.php:41) in /home/audubonartists/public_html/wordpress/wp-content/plugins/memcached/object-cache.php on line 22

I looked at the file manager and commented out lines 14-23, but that caused the whole site to go down with a fatal error and I had to uncomment it.

Mailchimp & Memcache problems

SteveC123 — Tue, 14 Feb 2023 09:48:39 +0000

I switched on memcache yesterday to help alleviate my sites increasing CPU use on Siteground. everything went smoothly until the site got busy after a promo where orders were coming in blank, no customer details.
Switching of memcache immediately solved the problem. What points to the mailchimp plugin was the huge increase in past and queued action schedules, with them being created sometimes many times a minute and failing to complete.
Any help appreciated.

Basic setup for Memcache

Malae — Fri, 20 Jan 2023 06:55:41 +0000

Hello Terry,

I am using WordPress 6.1.1 with PHP 7.4 on the server and enabled the Memcache extension. From the Query Monitor plugin I get the following message:

Persistent object cache plugin not in use.
The Memcache object cache extension for PHP is installed, but is not in use by WordPress. You should install a Memcache plugin.

I installed the CacheMaster plugin to hopefully fix this issue. However on the Basic page I only get three choices for the driver: File, MySQL an SQL Lite. Why do I not see Memcache? If for some reason CacheMaster does not see it can I use another driver? In any event, I tried each the thee drivers and enabled the caching, but still see the same message.

memcache

rivermobster — Sat, 17 Dec 2022 06:44:58 +0000

Well by now, I’m sure we have all seen this error…

A persistent object cache makes your site’s database more efficient, resulting in faster load times because WordPress can retrieve your site’s content and settings much more quickly.

Your hosting provider can tell you if a persistent object cache can be enabled on your site. Your host appears to support the following object caching services: Memcache, Memcached.

I manage my own server. Memcache is installed. This has been verified by my hosting company.

Does a plugin need to be used to make this error go away?

Can you please shed some light on this situation? I can’t be the only one that is wondering! lol

Thanks in advance,

-Joe

Works out of the box!

strarsis — Fri, 09 Dec 2022 16:56:06 +0000

A particular runtime environment doesn’t have memcache or redis PHP extension and their respective servers available, but PHP Opcache is enabled. This plugin is exactly what one needs for this!

The plugin worked right out of the box after activation and initial setup, even WordPress Site Health detects the presence of an object cache.

Memcache on Nginx

SteveC123 — Wed, 28 Sep 2022 17:17:44 +0000

Just to let you know of an issue when using your plugin on Siteground (Nginx server) and activating memcache. Orders started coming in as blanks with all customer data lost.

Took a while for siteground support to find the issue, but thorough testing showed that the issue only appeared when Mailchimp for WooCommerce plugin was active.
Steve