DRBD полезные ссылки

Решение некоторых проблем в DRBD
Репликация дисков по сети с помощью DRBD

SSMTP

SSMTP is a program which delivers email from a local computer to a configured mailhost (mailhub). It is not a mail server (like feature-rich mail server sendmail) and does not receive mail, expand aliases or manage a queue. One of its primary uses is for forwarding automated email (like system alerts) off your machine and to an external email address.

SSMTP

Passwordless root SSH Public Key Authentication on CentOS 6

It's often useful to be able to SSH to other machines without being prompted for a password. Additionally, if you using tools such as Parallel SSH you will need to setup Public Key SSH Authentication. To set it up is relatively straight forward: original

Send mail from command line with external smtp server on Linux

Send mail via SMTP servers, original: linux mail with smtp

Galera replication – how to recover a PXC cluster

Galera replication for MySQL brings not only the new, great features to our ecosystem, but also introduces completely new maintenance techniques. Are you concerned about adding such new complexity to your MySQL environment? Perhaps that concern is unnecessarily.

galera-replication-how-to-recover-a-pxc-cluster

Kostik Matvienko - обманщик

Константин Матвиенко - мошенник, жулик. Не доверяйте фрилансеру по имени
Kostik Matvienko. Подробности могу описать личным сообщением. Будьте бдительны.

 

 

Cache Directory - tar

Regardless of where the application decides to (or is configured to) place its cache directory, it should place within this directory a file named:

CACHEDIR.TAG

This file must be an ordinary file, not for example a symbolic link. Additionally, the first 43 octets of this file must consist of the following ASCII header string:

Signature: 8a477f597d28d172789f06886806bc55

http://www.brynosaurus.com/cachedir/spec.html