fighting against slowloris attack
2010-07-22 by , tagged as
Last week my webserver was hit by a "slowloris" attack.
slowloris
is a simple and effective low-bandwidth Deny-Of-Service-attack
which brings almost every apache to its knees.
GreenSQL database firewall production report
2010-07-05 by , tagged as
Since 24.06.2010 i use GreenSQL database firewall in production on my root server.
Here are some experiences and a performance report.
SATA Drives exception PHYRdyChg timeout
2010-05-24 by , tagged as
Between two and five times a month i had sata kernel exceptions
with 40 seconds timeouts and freezing the server completely.
sendmail client authentication failed with TLS
2010-03-04 by , tagged as
When sending mail with sendmail to a providers SMTP-server
authentication was not done because STARTTLS disabled
advertising authorization methods on the server side.
Oracle EE refused to install into OpenVZ
2010-02-07 by , tagged as
Oracle Express Edition 10g refused to install into an OpenVZ container
with the following message:
This system does not meet the minimum requirements for swap space.
Rails locking across multiple forms
2009-11-24 by , tagged as
In a rails application i needed to lock an object across multiple forms.
When i tried to increment lock_version the locking code prevented it.