Ubuntu Server 18.04 LTS

Alles wird als root ausgeführt.

IP einstellen

# This file describes the network interfaces available on your system
# For more information, see netplan(5).
  version: 2
  renderer: networkd
      addresses: [192.168.XXX.XXX/24]
      gateway4: 192.168.XXX.XXX
         addresses: [XXX.XXX.XXX.XXX,XXX.XXX.XXX.XXX]

Und mit dem folgenden Befehl die Änderung übernehmen:

netplan apply

Server Mail Versand ermöglichen


apt install postfix mailutils
  • Internet Site

Konfigurieren (am Beispiel von domainfactory)

# See /usr/share/postfix/ for a commented, more complete version
# Debian specific:  Specifying a file name will cause the first
# line of that file to be used as the name.  The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# See -- default to 2 on
# fresh installs.
compatibility_level = 2
# TLS parameters
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = XX-hostname-XX
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination = $myhostname,, localhost.localdomain, localhost
relayhost =
mynetworks = [::ffff:]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
smtp_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_use_tls = yes
smtp_tls_wrappermode = yes
smtp_tls_security_level = encrypt
/etc/postfix/sasl_passwd XX-email-XX:XX-passwort-XX
postmap /etc/postfix/sasl_passwd
chmod 0600 /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db
service postfix restart

Einstellung testen

echo "Test - Body" | mail -s "Test - Subject" XXX@XXX.XXX

Log checken

cat /var/log/mail.log

root Mails empfangen

# See man 5 aliases for format
postmaster:    root

Einstellungen übernehmen:


Einstellung testen

echo "Test - Body" | mail -s "Test - Subject" root

Log checken

cat /var/log/mail.log




apt-get install unattended-upgrades


// Automatically upgrade packages from these (origin:archive) pairs
// Note that in Ubuntu security updates may pull in new dependencies
// from non-security sources (e.g. chromium). By allowing the release
// pocket these get automatically pulled in.
Unattended-Upgrade::Allowed-Origins {
	// Extended Security Maintenance; doesn't necessarily exist for
	// every release and this system may not have it installed, but if
	// available, the policy for updates is such that unattended-upgrades
	// should also install from here by default.
//	"${distro_id}:${distro_codename}-proposed";
//	"${distro_id}:${distro_codename}-backports";
// List of packages to not update (regexp are supported)
Unattended-Upgrade::Package-Blacklist {
//	"vim";
//	"libc6";
//	"libc6-dev";
//	"libc6-i686";
// This option will controls whether the development release of Ubuntu will be
// upgraded automatically.
Unattended-Upgrade::DevRelease "false";
// This option allows you to control if on a unclean dpkg exit
// unattended-upgrades will automatically run 
//   dpkg --force-confold --configure -a
// The default is true, to ensure updates keep getting installed
//Unattended-Upgrade::AutoFixInterruptedDpkg "false";
// Split the upgrade into the smallest possible chunks so that
// they can be interrupted with SIGTERM. This makes the upgrade
// a bit slower but it has the benefit that shutdown while a upgrade
// is running is possible (with a small delay)
//Unattended-Upgrade::MinimalSteps "false";
// Install all unattended-upgrades when the machine is shutting down
// instead of doing it in the background while the machine is running
// This will (obviously) make shutdown slower
//Unattended-Upgrade::InstallOnShutdown "true";
// Send email to this address for problems or packages upgrades
// If empty or unset then no email is sent, make sure that you
// have a working mail setup on your system. A package that provides
// 'mailx' must be installed. E.g. ""
Unattended-Upgrade::Mail "root";
// Set this value to "true" to get emails only on errors. Default
// is to always send a mail if Unattended-Upgrade::Mail is set
Unattended-Upgrade::MailOnlyOnError "true";
// Remove unused automatically installed kernel-related packages
// (kernel images, kernel headers and kernel version locked tools).
//Unattended-Upgrade::Remove-Unused-Kernel-Packages "false";
// Do automatic removal of new unused dependencies after the upgrade
// (equivalent to apt-get autoremove)
//Unattended-Upgrade::Remove-Unused-Dependencies "false";
// Automatically reboot *WITHOUT CONFIRMATION*
//  if the file /var/run/reboot-required is found after the upgrade 
Unattended-Upgrade::Automatic-Reboot "true";
// If automatic reboot is enabled and needed, reboot at the specific
// time instead of immediately
//  Default: "now"
Unattended-Upgrade::Automatic-Reboot-Time "02:00";
// Use apt bandwidth limit feature, this example limits the download
// speed to 70kb/sec
//Acquire::http::Dl-Limit "70";
// Enable logging to syslog. Default is False
// Unattended-Upgrade::SyslogEnable "false";
// Specify syslog facility. Default is daemon
// Unattended-Upgrade::SyslogFacility "daemon";
// Download and install upgrades only on AC power
// (i.e. skip or gracefully stop updates on battery)
// Unattended-Upgrade::OnlyOnACPower "true";
// Download and install upgrades only on non-metered connection
// (i.e. skip or gracefully stop updates on a metered connection)
// Unattended-Upgrade::Skip-Updates-On-Metered-Connections "true";

PPA hinzufügen (am Beispiel Syncthing)

Unattended-Upgrade::Allowed-Origins {


software_handreichungen/ubuntu_server_18.04_lts.txt · Zuletzt geändert: 2019/03/21 18:51 von andreas