Analytic

Thursday, October 30, 2014

Mysql 5.5 Innodb slow insert query issue

An upgrade MySQL from version 5.1 to 5.5 has very slowed Typo3 instances.

The reason was very slow insert queries in InnoDB tables.

In order to save you some distress, for a possible solution, add following line to my.cnf and restart the mysql:

innodb_flush_log_at_trx_commit=0



Wednesday, October 15, 2014

Disable SSLv2 and SSLv3 in Apache

The best way to disable both SSLv2 and SSLv3 and only enable TLS 1.0-1.2 is to use this configuration in your Apache configuration file:






SSLProtocol TLSv1
 
Example:
 
SSLEngine On
SSLProtocol TLSv1
SSLCertificateFile      domain.crt
SSLCertificateKeyFile   domain.key

Testing your SSL Version

if you want to test your ssl version details of perticular host use the following command:

openssl s_client -connect YOURDOMAIN:443

You need to replace YOURDOMAIN to your website hostname Output looks like below:

Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
SSL-Session:
    Protocol  : TLSv1
    Cipher    : ....
    Session-ID: ....