Linux Admin Part3 Network Management -Assign ip Address nmtui, ifcfg
20220211 104436
Network Management
how check ip address
ifconfig
ip addr
nmcli
to manage network:
nmtui
Network Manager
/etc/sysconfig/network-scripts/ifcfg-eth0
/etc/sysconfig/network-scripts/ifcfg-ens33
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disable and enable
ex. nic name --ens33
ifdown ens33 --disable nic ens33
ifup ens33 --enable nic ens33
--change network , but ip address not updated from dhcp server
--change your static ip address , but it not showing updated one
Restart network service:
systemctl restart network
or
service network restart
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In GUI
network setting
Network Manager
i assign ip address static ip address to nic ens37
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cli:
check network configuration file
ens33 ip address by dhcp server:
cat /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
BOOTPROTO="dhcp"
DEFROUTE="yes"
NAME="ens33"
#UUID="28d94dfa-8890-4622-8eb6-4a9df6aee920"
DEVICE="ens33"
ONBOOT="yes"
ip address by static/manual:
cat /etc/sysconfig/network-scripts/ifcfg-Wired_connection_1
#HWADDR=00:0C:29:9C:D9:19
TYPE=Ethernet
BOOTPROTO=none
IPADDR=192.168.0.190
PREFIX=24
GATEWAY=192.168.0.1
DEFROUTE=yes
NAME="Wired connection 1"
#UUID=c103de2a-e52d-3a7f-b117-f94b545a092f
ONBOOT=yes
AUTOCONNECT_PRIORITY=-999
DNS1=192.168.0.1
PEERDNS=no
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change ip address on ens37 - static/manual
vi /etc/sysconfig/network-scripts/ifcfg-Wired_connection_1
IPADDR=192.168.0.109 --this only i changed
ifdown ens37
ifup ens37
systemctl restart network
or
service network restart
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tui:
nmtui
edit a network
edit
show
automatic - manual
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