12 junio, 2024
Initial Settings : Network Settings

[1] Set static IP address to the server. ( Replace the section [ens3] to your own interface name )
# set hostname

[root@localhost ~]#

hostnamectl set-hostname dlp.srv.world
# display devices

[root@localhost ~]#

nmcli device

ens3    ethernet  connected  ens3
lo      loopback  unmanaged  --

# set IPv4 address

[root@localhost ~]#

nmcli connection mod ens3 ipv4.addresses

# set default gateway

[root@localhost ~]#

nmcli connection mod ens3 ipv4.gateway

# set DNS

[root@localhost ~]#

nmcli connection mod ens3 ipv4.dns

# set manual for static setting (it’s [auto] for DHCP)

[root@localhost ~]#

nmcli connection mod ens3 ipv4.method manual

# restart the interface and reload the settings

[root@localhost ~]#

nmcli connection down ens3; nmcli connection up ens3

Connection ‘ens3’ successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1)
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/2)

# show settings

[root@localhost ~]#

nmcli device show ens3

GENERAL.DEVICE:                         ens3
GENERAL.TYPE:                           ethernet
GENERAL.HWADDR:                         52:54:00:1F:F9:3F
GENERAL.MTU:                            1500
GENERAL.STATE:                          100 (connected)
GENERAL.CONNECTION:                     ens3
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveC
IP4.ROUTE[1]:                           dst =, nh =, mt = 1
IP4.ROUTE[2]:                           dst =, nh =, mt = 100
IP6.ADDRESS[1]:                         fe80::5054:ff:fe1f:f93f/64
IP6.GATEWAY:                            --
IP6.ROUTE[1]:                           dst = ff00::/8, nh = ::, mt = 256, tabl
IP6.ROUTE[2]:                           dst = fe80::/64, nh = ::, mt = 256
IP6.ROUTE[3]:                           dst = fe80::/64, nh = ::, mt = 100

# show state

[root@localhost ~]#

ip addr show

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 52:54:00:1f:f9:3f brd ff:ff:ff:ff:ff:ff
    inet brd scope global noprefixroute ens3
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:ff:fe1f:f93f/64 scope link noprefixroute
       valid_lft forever preferred_lft forever
[2] Disable IPv6 like follows if you do not need it.

[root@localhost ~]#

vi /etc/default/grub
# line 7: add




# apply changes

[root@localhost ~]#

grub2-mkconfig -o /boot/grub2/grub.cfg

[root@localhost ~]#

Fuente: https://www.server-world.info/en/note?os=Fedora_28&p=initial_conf&f=3

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