Ubuntu: Difference between revisions
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lsb_release -a | lsb_release -a | ||
=Package Management= | |||
{{External|[https://www.howtogeek.com/261449/how-to-install-linux-software-in-windows-10s-ubuntu-bash-shell/ apt-get tutorial]}} | |||
apt-get update | |||
Add a repository: | |||
add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | |||
Query and display available information about installed and installable packages: | |||
apt-cache | |||
=User Management= | |||
[[useradd]], [[usermod]], etc. | |||
=Configuration= | =Configuration= | ||
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<tt>ifup</tt> is one of the utilities that can be used to configure the network interfaces. It reads its configuration from /etc/network/interfaces: | <tt>ifup</tt> is one of the utilities that can be used to configure the network interfaces. It reads its configuration from /etc/network/interfaces: | ||
<syntaxhighlight'> | <syntaxhighlight lang='bash'> | ||
# This file describes the network interfaces available on your system | # This file describes the network interfaces available on your system | ||
# and how to activate them. For more information, see interfaces(5). | # and how to activate them. For more information, see interfaces(5). | ||
| Line 31: | Line 49: | ||
# The primary network interface | # The primary network interface | ||
auto ens5 | auto ens5 | ||
iface ens5 inet static | iface ens5 inet static | ||
address 192.168.1.10 | address 192.168.1.10 | ||
netmask 255.255.255.0 | netmask 255.255.255.0 | ||
gateway 192.168.1.1 | gateway 192.168.1.1 | ||
dns- | dns-nameservers 1.1.1.1 8.8.8.8 8.8.4.4 | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| Line 47: | Line 64: | ||
====DNS Resolver==== | ====DNS Resolver==== | ||
DNS resolver is configured with <tt>resolvconf</tt>. Normally, <tt>resolvconf</tt> is invoked by network interface configuration programs, such as <tt>ifup</tt>, <tt>NetworkManager</tt> or <tt>dhclient</tt>. <tt>resolvconf</tt> ''can'' be run by administrators, but this s normally necessary. | DNS resolver is configured with <tt>resolvconf</tt>, which writes /etc/resolv.conf. Normally, <tt>resolvconf</tt> is invoked by network interface configuration programs, such as <tt>ifup</tt>, <tt>NetworkManager</tt> or <tt>dhclient</tt>. <tt>resolvconf</tt> ''can'' be run by administrators, but this s normally necessary. /etc/network/interfaces contains DNS-related configuration keywords: "dns-nameserver", "dns-search", "dns-nameservers". For more details | ||
man resolvconf | |||
=Execute a Script on Boot= | |||
Place the script to be executed in the /etc/init.d directory. | |||
Make it executable. | |||
Execute: | |||
<syntaxhighlight lang='text'> | |||
sudo update-rc.d <script-name> defaults | |||
</syntaxhighlight> | |||
Do not prefix the script name with "/etc/init.d". | |||
Latest revision as of 01:45, 20 September 2020
Internal
Info
Ubuntu Version
lsb_release -a
Package Management
apt-get update
Add a repository:
add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
Query and display available information about installed and installable packages:
apt-cache
User Management
Configuration
Network
Network Interfaces
ifup
ifup is one of the utilities that can be used to configure the network interfaces. It reads its configuration from /etc/network/interfaces:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto ens5
iface ens5 inet static
address 192.168.1.10
netmask 255.255.255.0
gateway 192.168.1.1
dns-nameservers 1.1.1.1 8.8.8.8 8.8.4.4
NetworkManager
dhclient
DNS
DNS Resolver
DNS resolver is configured with resolvconf, which writes /etc/resolv.conf. Normally, resolvconf is invoked by network interface configuration programs, such as ifup, NetworkManager or dhclient. resolvconf can be run by administrators, but this s normally necessary. /etc/network/interfaces contains DNS-related configuration keywords: "dns-nameserver", "dns-search", "dns-nameservers". For more details
man resolvconf
Execute a Script on Boot
Place the script to be executed in the /etc/init.d directory.
Make it executable.
Execute:
sudo update-rc.d <script-name> defaults
Do not prefix the script name with "/etc/init.d".