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| $ nmcli --version nmcli tool, version 1.18.8-2.el7_9
$ man nmcli-examples
$ nmcli -f device,state d DEVICE STATE eth0 connected docker0 unmanaged lo unmanaged
$ nmcli -g device,state d eth0:connected docker0:unmanaged lo:unmanaged
$ nmcli -t d eth0:ethernet:connected:eth0 docker0:bridge:unmanaged: lo:loopback:unmanaged:
$ nmcli -p d ===================== Status of devices ===================== DEVICE TYPE STATE CONNECTION --------------------------------------------------------------- eth0 ethernet connected eth0 docker0 bridge unmanaged -- lo loopback unmanaged --
$ nmcli -m mul -t d DEVICE:eth0 TYPE:ethernet STATE:connected CONNECTION:eth0 DEVICE:docker0 TYPE:bridge STATE:unmanaged CONNECTION: DEVICE:lo TYPE:loopback STATE:unmanaged CONNECTION:
$ nmcli eth0: connected to eth0 "Intel 82545EM" ethernet (e1000), 00:50:56:3A:5B:E6, hw, mtu 1500 ip4 default inet4 192.168.31.11/24 route4 192.168.31.0/24 route4 0.0.0.0/0 inet6 fe80::6bc0:6af2:4032:645b/64 route6 fe80::/64 docker0: unmanaged "docker0" bridge, 02:42:DC:4D:E4:B7, sw, mtu 1500 lo: unmanaged "lo" loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536 DNS configuration: servers: 192.168.31.1 223.5.5.5 interface: eth0
$ nmcli dev DEVICE TYPE STATE CONNECTION eth0 ethernet connected eth0 docker0 bridge unmanaged -- lo loopback unmanaged --
$ nmcli con NAME UUID TYPE DEVICE eth0 5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03 ethernet eth0
nmcli -t -f RUNNING general
nmcli -t -f STATE general
nmcli radio wifi off
nmcli connection show
nmcli con mod eth0 ipv4.method manual ipv4.addr "192.168.11.23/24,172.16.10.5/16"
nmcli con modify eth0 +ipv4.dns 8.8.8.8
nmcli con modify eth0 -ipv4.addresses "172.16.10.5/16"
nmcli -p connection show eth0
$ nmcli con add con-name eth1 type ethernet ifname eth1
$ nmcli con modify eth1 ipv4.method manual ipv4.addresses "192.168.11.12/24"
$ nmcli con up eth1
$ nmcli con del eth1
nmcli device status
nmcli dev wifi
nmcli dev wifi con "ap" password 12345 name "ap"
nmcli con up id "ap"
nmcli dev con eth0 nmcli dev nmcli n on nmcli n
cd /etc/sysconfig/network-scripts mv ifcfg-eth1 ifcfg-eth1.bak mv ifcfg-eth2 ifcfg-eth2.bak
$ nmcli con add type bond con-name bond0 ifname bond0 mode active-backup ip4 192.168.10.10/24 $ nmcli con add type bond-slave con-name bond0-eth1 ifname eth1 master bond0 $ nmcli con add type bond-slave con-name bond0-eth2 ifname eth2 master bond0 $ nmcli con up bond0 $ nmcli con up bond0-eth1 $ nmcli con up bond0-eth2
$ cat /proc/net/bonding/bond0
$ nmcli con down bond0 $ nmcli con delete bond0 bond0-eth1 bond0-eth2
$ nmcli con add type team con-name team0 ifname team0 config '{"runner":{"name":"activebackup"}}' ip4 192.168.10.10/24 $ nmcli con add type team-slave con-name team0-eth1 ifname eth1 master team0 $ nmcli con add type team-slave con-name team0-eth2 ifname eth2 master team0 $ nmcli con up team0 $ nmcli con up team0-eth1 $ nmcli con up team0-eth2
$ teamdctl team0 state
$ nmcli con down team0 $ nmcli con delete team0 team0-eth1 team0-eth2
$ nmcli con add type bridge con-name bridge0 ifname bridge0 ip4 192.168.10.10/24 $ nmcli con add type bridge-slave con-name bridge0-eth1 ifname eth1 master bridge0 $ nmcli con add type bridge-slave con-name bridge0-eth2 ifname eth2 master bridge0 $ nmcli con modify bridge0 bridge.stp no $ nmcli con down bridge0 $ nmcli con up bridge0 $ nmcli con up bridge0-eth1 $ nmcli con up bridge0-eth2
$ brctl show
$ nmcli con down bridge0 $ nmcli con delete bridge0 bridge0-eth1 bridge0-eth2
$ nmcli con add con-name eth1 ifname eth1 type ethernet ip4 192.168.10.10/24 gw4 192.168.10.1 $ nmcli con mod eth1 ipv4.dns "8.8.8.8 8.8.4.4" $ nmcli con mod eth1 +ipv4.dns 1.2.3.4 $ nmcli con mod eth1 ipv6.dns "2001:4860:4860::8888 2001:4860:4860::8844" $ nmcli -p con show eth1
$ nmcli -g ipv4.addresses connection show eth1 192.168.10.10/24 $ nmcli -g ipv4.addresses,ipv4.dns connection show eth1 192.168.10.10/24 8.8.8.8,8.8.4.4,1.2.3.4 $ nmcli -g ipv4 connection show eth1 ipv4:manual:8.8.8.8,8.8.4.4,1.2.3.4:: :0:192.168.10.10/24:192.168.10.1::-1:0::no:no::0:yes:::no:yes:-1
$ nmcli -g ip4 connection show eth1 $ nmcli -g ip4 connection show eth0 IP4:192.168.31.11/24:192.168.31.1:dst = 192.168.31.0/24, nh = 0.0.0.0, mt = 100 | dst = 0.0.0.0/0, nh = 192.168.31.1, mt = 100:192.168.31.1 | 223.5.5.5::
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