In the recent past CloudVPS had one Objectstore FTP proxy located under ftp.objectstore.eu 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 ftp.objectstore.eu became a loadbalancer. This means… Read More »
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 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: https://my.spamexperts.com/kb/40/MTA-examples-to-set-use-a-smarthost.html For incoming filtering: https://my.spamexperts.com/kb/31/Accept-email-only-from-the-Hosted-Cloud-filter-nodes.html We improved these… Read More »
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 »
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):
1 2 3 | AH01071: Got error 'PHP message: PHP Warning: Parameter 1 to W3_Plugin_Minify::ob_callback() expected to be a reference, value given in wp-content/plugins/w3-total-cache/inc/functions/plugin.php on line 23 PHP Warning: Parameter 1 to W3_PgCache::ob_callback() expected to be a reference, value given in wp-content/plugins/w3-total-cache/inc/functions/plugin.php on line 23\n' |
This can be fixed by editting the following files:
1 2 3 4 5 6 | wp-content/plugins/w3-total-cache/lib/W3/PgCache.php: function ob_callback(&$buffer) { wp-content/plugins/w3-total-cache/lib/W3/Plugin/NewRelic.php: function ob_callback(&$buffer) { wp-content/plugins/w3-total-cache/lib/W3/Plugin/Cdn.php: function ob_callback(&$buffer) { wp-content/plugins/w3-total-cache/lib/W3/Plugin/BrowserCache.php: function ob_callback(&$buffer) { wp-content/plugins/w3-total-cache/lib/W3/Plugin/Minify.php: function ob_callback(&$buffer) { |
Such that:
1 | function ob_callback(&$buffer) { |
becomes:
1 | function ob_callback($buffer) { |
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 »
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 »
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 »
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 »
If you are hosting multiple domainnames with emailaccounts within an Office365 Exchange account, each emailaccount can see all other emailaddresses through the “all users” addresslist. This is a nice future if the domainnames belong to one organization but it isn’t if the domainnames belong to different organizations. To avoid this you can disable the visibility… Read More »