/var/lib/ureadahead/debugfs/tracing is not accessible

  Nagios check_disk You are monitoring an Unix Ubuntu Server using nagios and the NRPE command « check_disk », and you are blocked on the following error : DISK CRITICAL – /var/lib/ureadahead/debugfs/tracing is not accessible: No such file or directory Simply run the command mountall It may display some errors, like « Device or resource busy »...

juin 22nd, 2017 by Benoit Bonneville 

Mysql 5.7 upgrade too strict

Mysql 5.7 come with a new default settings: the strict mode. This feature replace MySql previous warning by a Fatal error and it will crash your application in many cases : Forgetting to defined default values for your field Trying to set a empty string into a integer field Dividing by 0 … Errors Sample Incorrect integer value: '' for column 'id' at row 1 How to fix In order to disable...

septembre 23rd, 2016 by Benoit Bonneville 

LetsEncrypt is currently unsecure

LetsEncrypt (LE) permet la délivrance de certificats gratuits, c’est une révolution pour le web. Problème: Les certificats générés sont lisible par tout utilisateur du system unix lors de la génération automatique. Actuellement sur letsencrypt 0.4.2 Récapitulatif sur son le fonctionnement Installation : git clone https://github.com/letsencrypt/letsencrypt /opt/letsencrypt /opt/letsencrypt/letsencrypt-auto Puis...

mars 3rd, 2016 by Benoit Bonneville