Smokeping targets for Europe and rest of the world 2017

It is hard to find a good list of Smokeping targets to add to your smokeping, so here is our targetlist. This list covers the most countries in Europe with multiple targets per country and some targets in big countries in other continents.


CloudVPS Objectstore FTP proxy firewall rules for CSF

In the recent past CloudVPS had one Objectstore FTP proxy located under which only required port 20 and port 21 to be opened in the firewall. Since the load of the proxy was getting higher and higher CloudVPS upgraded their platform with (currently) four FTP backend servers, and became a loadbalancer. This means… Read More »

DirectAdmin backup to CloudVPS Objectstore with CURL v2

We use the CloudVPS Objectstore to store data in a redundant (3 times) and cheap way, ideal for backups. One of the main disadvantages is that files on the Objectstore may not be larger than 5 GB in size. To workaround this we created a customized ftp_upload.php script (= bash script that handles the upload… Read More »

SpamExperts advanced filtering with DirectAdmin

SpamExperts got a couple of example configurations in their knowledgebase for using SpamExperts as a smarthost (outgoing email filtering) and to accept only mail from the SpamExperts servers to avoid bypassing the SpamExperts filters (incoming email filtering). The knowledgebase articles are: For outgoing filtering using a smarthost: For incoming filtering: We improved these… Read More »

Force SpamAssassin spamfilter for external forwarders

Users like to forward email from emailaccounts under their own domain to their personal emailaccount at Hotmail, Google or other thirth party emailproviders. The current techniques does not handle forwarding spam very well, meaning that incoming spam is handled by your server and routed to the thirth party provider. The receiving provider thinks that you… Read More »

W3 Total Cache plugin with PHP 7.0.9

In addition to our previous article W3 Total Cache plugin with PHP7 a couple of new fixes are necessary after updating to PHP version 7.0.9. The PHP errors are (together with a white screen of death):

This can be fixed by editting the following files:

Such that:


W3 Total Cache plugin with PHP7

W3 Total Cache is a great plugin to speed up your WordPress website. It will make the difference between a server that is crashing under its load when serving 70 requests per seconds to being almost bored when serving 1200 requests per seconds. However: to make the W3 Total Cache plugin functional on a PHP7… Read More »

Segfaults in after upgrading to RHEL/CentOS 6.8

Please be aware of the following bug in RHEL and CentOS 6.8 when using Xen as your Hypervisor. We experienced this issue on a couple of servers after updating CentOS after which some websites were starting to serve “503 Service Unavailable” or “404 Page not found” errors. The website related logfiles didn’t show any issues,… Read More »

WordPress/Joomla bruteforce server-wide protection with reCAPTCHA

A common way to protect the WordPress wp-admin and Joomla administrator directories against (automated) bruteforce password attacks is to password protect both directories with Basic Authentication. Webhosting companies could do this on a server-wide base through an Apache configuration that matches all wp-login.php and administrator requests. If a bot, or user, accessed the wp-admin (WordPress)… Read More »

Mix Office365 Exchange and IMAP/POP3

Email for a domainname can only be delivered at one location (our Exchange Online emailaccounts or emailaccounts hosted in our webhosting product) since MX records are domain specific and cannot be different depending on the emailaddress (doh ;-)). To avoid complicated setups we prefer to use only one kind of email within a domainname, either… Read More »