When to Restart Services or Reboot after Update on Debian or Ubuntu
After update Debian (or Ubuntu) using apt-get update && apt-get -V upgrade you need to know which services need restart and if system reboot is required (kernel upgrade). A common…
Update Postgres Major Version in Debian Jessie
Postgresql update is not a trivial task. According to PostgreSQL Versioning policy: A major release is numbered by increasing either the first or second part of the version number, e.g.…
A Simple Guide to Obtain and Install an SSL Certificate
More and more companies use SSL certificates (small data files that digitally bind a cryptographic key) to protect their customers sensitive data, as username, password and credit card number, as…
Upgrade Debian 7 Wheezy to 8 Jessie
One of the advantages of Debian operating system is the ability to live update a production server from current to next release. Under normal circumstances you do not have to…
Debian 8 Jessie Dedicated Web Server Setup Step by Step
Debian 8.0 Jessie was initially released on April 26th, 2015. Jessie is powered by Linux kernel 3.16. Jessie ships with a new default init system, systemd. The sysvinit init system…