Automatic Updates Linux Server

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Linux is simplest terms, an operating system. It is the software on a computer that enable applications and the computer operator to correct to use the devices on the computer to implement chosen functions. The processor performs the instruct task, then sends the results back to the application via the operating system.  Linux is extremely comparable to other operating systems, such as Windows and OS X.

As an open operating system Linux is developed collaboratively, meaning no one company is exclusively accountable for its growth or ongoing support. Companies participate in the Linux market share study and development expenses with their associates and competitor. This distribution of the development load among st persons and companies has resulted in a great and well organized ecosystem and unheralded software modernism.

If you are one of Anchor’s clientele with an unmanaged committed server or VPS we enable automatic update by default. This is a newer even if defectively documented characteristic on Debian and Ubuntu systems, and a old task we have scripted up for Redhat and  Fedora systems.

Debian Type /Ubuntu:  Debian systems have a pack up solution for this in extra recent versions albeit not well known at all.

Install the package:  aptitude update

aptitude install unattended-upgrades

This does not do anything on its own, contrary to what you might have guessed, so we add can conf fragment in /etc/apt/apt.conf.d/98local newer Ubuntu install may do this for you already in 20auto-upgrades.

APT::Periodic::Unattended-Upgrade “1”;

Set some periodic options to have downloads and cleaning done automatically.

If you have the update-notifier-common package installed more likely on Ubuntu you can modify /etc/apt/apt.conf.d/10periodic like so:

APT::Periodic::Update-Package-Lists “1”;

APT::Periodic::Download-Upgradeable-Packages “1”;

APT::Periodic::AutocleanInterval “1”;

If not, drop those three lines into /etc/apt/apt.conf.d/98local

Activity is logged to /var/log/unattended-upgrades/

You may well wish to edit /etc/apt/apt.conf.d/50unattended-upgrades to configure upgrade sources.

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Depending on your version of the unattended upgrades package, you can as well set a mail recipient for notification about upgrade actions, once again in /etc/apt/apt.conf.d/50unattended-upgrades.

You should be high quality to go. APT bring its own cronjob to /etc/cron.daily/apt which handles the actual running of maintenance tasks.

Redhat-type / Fedora:

Things are a little less higher for Red hat. Drop this shell script into /etc/cron.daily/yumupdate and set it to be executable.

#!/bin/sh

YUM=/usr/bin/yum

# -y == assume yes

# -d == debug verbosity

# -e == error-reporting level

# -R == wait 0~n min before running the command (randomise)

# clear all packages, dependency headers, metadata and metadata cache

${YUM} -y -d 0 -e 0 clean all

# update the yum package itself

${YUM} -y -d 0 -e 0 update yum

# update everything

${YUM} -y -R 10 -e 0 -d 0 update.

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