Category Archives: Apache

Increase SSL and TLS security on nginx and Apache by enabling PFS and HSTS

The default configuration of SSL is fine on most Linux distributions (you will get an A-Rating at SSL Labs), but still could be done a lot better and more secure. Goals we want to achieve: Enable Perfect Forward Secrecy (PFS) Enable HTTP Strict Transport Security (HSTS) Disable SSLv2 and SSLv3 PCI compliant FIPS-ready (optional) Don’t break IE… NOTE: the configuration below will … Continue reading

Posted in Apache, CentOS, Linux, nginx, Security | Tagged , , , , , , , , | 3 Comments

Plesk (11) – Redirect Webmail to HTTPS

By default the webmail interfaces of Plesk is running unsecured on port 80. That’s bad, really bad (Shame on you Parallels!). There are some guides out there to fix that, but they are all wrong in my eyes. Some are made for old releases, others are changing stuff in files which are overwritten on update or regeneration of config files. But … Continue reading

Posted in Apache, CentOS, Linux, Plesk | 3 Comments

Find out the website causing high load on a Apache webserver

If you’re running an Apache webserver with many customer websites, there will be a time (sooner or later) where your server is flooded with a lot of page requests, causing a high CPU-load and memory usage. Specially if PHP or other scripting is used behind. Most of the time this is caused by a harmful script somewhere in the net. … Continue reading

Posted in Apache, Linux, Plesk | Tagged , , , , , , , | 2 Comments