네트워킹 가이드

~]$ nmcli connection modify enps1s0 ipv4.dhcp-timeout infinity

~]$ nmcli connection modify enp1s0 ipv4.address 192.168.122.88/24

nmcli con up id bond0
nmcli con up id port0
nmcli dev disconnect bond0
nmcli dev disconnect ens3

~]$ nmcli con edit

nmcli con edit [id | uuid | path] ID

nmcli con edit [type new-connection-type] [con-name new-connection-name]

describe setting.property

nmcli> describe team.config

nmcli c add type ethernet ifname enp1s0 con-name "My Connection"

nmcli c add type ethernet ifname enp1s0 con-name "My Connection" ethernet.mtu 1600

nmcli c add connection.type ethernet ifname enp1s0 con-name "My Connection" ethernet.mtu 1600 

nmcli c add connection.type ethernet connection.interface-name enps1s0 connection.id  "My Connection" ethernet.mtu 1600

nmcli c modify

nmcli c modify "My Connection" connection.id "My favorite connection" connection.interface-name enp1s0

nmcli c modify "My favorite connection" ethernet.mtu 1600 

nmcli con up con-name

nmcli con up My-favorite-connection 
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/16)

~]$ nmcli con show
NAME              UUID                                  TYPE            DEVICE
Auto Ethernet     9b7f2511-5432-40ae-b091-af2457dfd988  802-3-ethernet  --
ens3              fb157a65-ad32-47ed-858c-102a48e064a2  802-3-ethernet  ens3
MyWiFi            91451385-4eb8-4080-8b82-720aab8328dd  802-11-wireless wlp61s0

~]$ nmcli device status
DEVICE  TYPE      STATE         CONNECTION
ens3    ethernet  disconnected  --
ens9    ethernet  disconnected  --
lo      loopback  unmanaged     --

nmcli connection add type ethernet con-name connection-name ifname interface-name

~]$ nmcli con add type ethernet con-name my-office ifname ens3
Connection 'my-office' (fb157a65-ad32-47ed-858c-102a48e064a2) successfully added.

~]$ nmcli con up my-office
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/5)

~]$ nmcli device status
DEVICE  TYPE      STATE         CONNECTION
ens3    ethernet  connected     my-office
ens9    ethernet  disconnected  --
lo      loopback  unmanaged     --

~]$ nmcli con modify my-office my-office ipv4.dhcp-hostname host-name ipv6.dhcp-hostname host-name

~]$ nmcli con modify my-office my-office ipv4.dhcp-client-id client-ID-string

~]$ nmcli con modify my-office my-office ipv4.ignore-auto-dns yes ipv6.ignore-auto-dns yes

nmcli connection add type ethernet con-name connection-name ifname interface-name ip4 address gw4 address

~]$ nmcli con add type ethernet con-name test-lab ifname ens9 ip4 10.10.10.10/24 \
gw4 10.10.10.254

~]$ nmcli con add type ethernet con-name test-lab ifname ens9 ip4 10.10.10.10/24 \
gw4 10.10.10.254 ip6 abbe::cafe gw6 2001:db8::1
Connection 'test-lab' (05abfd5e-324e-4461-844e-8501ba704773) successfully added.

~]$ nmcli con mod test-lab ipv4.dns "8.8.8.8 8.8.4.4"

~]$ nmcli con mod test-lab ipv6.dns "2001:4860:4860::8888 2001:4860:4860::8844"

~]$ nmcli con mod test-lab +ipv4.dns "8.8.8.8 8.8.4.4"

~]$ nmcli con mod test-lab +ipv6.dns "2001:4860:4860::8888 2001:4860:4860::8844"

~]$ nmcli con up test-lab ifname ens9
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/6)

~]$ nmcli device status
DEVICE  TYPE      STATE      CONNECTION
ens3    ethernet  connected  my-office
ens9    ethernet  connected  test-lab
lo      loopback  unmanaged  --

~]$ nmcli -p con show test-lab
===============================================================================
                     Connection profile details (test-lab)
===============================================================================
connection.id:                          test-lab
connection.uuid:                        05abfd5e-324e-4461-844e-8501ba704773
connection.interface-name:              ens9
connection.type:                        802-3-ethernet
connection.autoconnect:                 yes
connection.timestamp:                   1410428968
connection.read-only:                   no
connection.permissions:
connection.zone:                        --
connection.master:                      --
connection.slave-type:                  --
connection.secondaries:
connection.gateway-ping-timeout:        0
[output truncated]

nmcli connection add type ethernet con-name connection-name ifname interface-name

nmcli connection add type ethernet con-name connection-name ifname "*"

nmcli connection add type ethernet con-name "connection-name" ifname "*" mac 00:00:5E:00:53:00

~]$ nmcli dev wifi list
  SSID            MODE  CHAN  RATE     SIGNAL  BARS  SECURITY
  FedoraTest     Infra  11    54 MB/s  98      ▂▄▆█  WPA1
  Red Hat Guest  Infra  6     54 MB/s  97      ▂▄▆█  WPA2
  Red Hat        Infra  6     54 MB/s  77      ▂▄▆_  WPA2 802.1X
* Red Hat        Infra  40    54 MB/s  66      ▂▄▆_  WPA2 802.1X
  VoIP           Infra  1     54 MB/s  32      ▂▄__  WEP
  MyCafe         Infra  11    54 MB/s  39      ▂▄__  WPA2

~]$ nmcli con add con-name MyCafe ifname wlp61s0 type wifi ssid MyCafe \
ip4 192.168.100.101/24 gw4 192.168.100.1

~]$ nmcli con modify MyCafe wifi-sec.key-mgmt wpa-psk
~]$ nmcli con modify MyCafe wifi-sec.psk caffeine

~]$ nmcli radio wifi [on | off ]

~]$ nmcli connection show id 'MyCafe' | grep mtu
802-11-wireless.mtu:                     auto

~]$ nmcli connection modify id 'MyCafe' 802-11-wireless.mtu 1350

~]$ nmcli connection show id 'MyCafe' | grep mtu
802-11-wireless.mtu:                     1350

USERS="joe bob alice"

10.10.10.0/24 via 192.168.0.10 table 1
10.10.10.0/24 via 192.168.0.10 table 2

nmcli c add type wifi ifname wlo61s0 con-name 'My Wifi Network' \
      802-11-wireless.ssid 'My Wifi' \
      802-11-wireless-security.key-mgmt wpa-eap \
      802-1x.eap tls \
      802-1x.identity identity@example.com \
      802-1x.ca-cert /etc/pki/my-wifi/ca.crt \
      802-1x.client-cert /etc/pki/my-wifi/client.crt \
      802-1x.private-key /etc/pki/my-wifi/client.key \
      802-1x.private-key-password s3cr3t

~]$ hostnamectl status

~]# hostnamectl set-hostname name

~]# hostnamectl set-hostname name [option...]

~]# hostnamectl set-hostname "Stephen's notebook" --pretty

~]# hostnamectl set-hostname "" [option...]

~]# hostnamectl set-hostname -H [username]@hostname

~]# modprobe --first-time bonding

~]$ modinfo bonding

~]# ifup ifcfg-enp1s0
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/7)

~]# ifup ifcfg-enp2s0
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/8)

ifdown device_name

~]# nmcli con load /etc/sysconfig/network-scripts/ifcfg-device

~]# nmcli con reload

~]# ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp1s0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP mode DEFAULT qlen 1000
    link/ether 52:54:00:e9:ce:d2 brd ff:ff:ff:ff:ff:ff
3: enp2s0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP mode DEFAULT qlen 1000
    link/ether 52:54:00:38:a6:4c brd ff:ff:ff:ff:ff:ff
4: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT
    link/ether 52:54:00:38:a6:4c brd ff:ff:ff:ff:ff:ff

~]$ nmcli connection show
NAME  UUID                                  TYPE            DEVICE
enp2s0  0e8185a1-f0fd-4802-99fb-bedbb31c689b  802-3-ethernet  --
enp1s0  dfe1f57b-419d-4d1c-aaf5-245deab82487  802-3-ethernet  --

~]$ nmcli device status
DEVICE      TYPE      STATE                                  CONNECTION
virbr0      bridge    connected                              virbr0
ens3        ethernet  connected                              ens3

~]$ nmcli connection add type team ifname ServerA
Connection 'team-ServerA' (b954c62f-5fdd-4339-97b0-40efac734c50) successfully added.

~]$ nmcli con show team-ServerA
connection.id:                          team-ServerA
connection.uuid:                        b954c62f-5fdd-4339-97b0-40efac734c50
connection.interface-name:              ServerA
connection.type:                        team
connection.autoconnect:                 yes
…
ipv4.method:                            auto
[output truncated]

~]$ nmcli connection add type team con-name Team0 ifname ServerB
Connection 'Team0' (5f7160a1-09f6-4204-8ff0-6d96a91218a7) successfully added.

~]$ nmcli con show
NAME                UUID                                  TYPE            DEVICE
team-ServerA        b954c62f-5fdd-4339-97b0-40efac734c50  team            ServerA
enp2s0                0e8185a1-f0fd-4802-99fb-bedbb31c689b  802-3-ethernet  --
enp1s0                dfe1f57b-419d-4d1c-aaf5-245deab82487  802-3-ethernet  --
Team0               5f7160a1-09f6-4204-8ff0-6d96a91218a7  team            ServerB

nmcli con mod old-team-name connection.id new-team-name

nmcli connection modify team-name team.config JSON-config

nmcli con show team-name | grep team.config

nmcli connection modify team-name team.link-watchers "name=ethtool delay-up=5, name=nsna_ping target-host=target.host"

nmcli connection modify team-name team.runner activebackup team.link-watchers "name=ethtool delay-up=5, name=nsna_ping target-host=target.host"

nmcli connection modify team-name team.config '{"runner": {"name": "activebackup"}, "link_watch": [{"name": "ethtool", "delay_up": 5},{"name": "nsna_ping", "target_host ": "target.host"}]'

~]$ nmcli con add type ethernet con-name Team0-port1 ifname enp1s0 slave-type team master Team0
Connection 'Team0-port1' (ccd87704-c866-459e-8fe7-01b06cf1cffc) successfully added.

~]$ nmcli con add type ethernet con-name Team0-port2 ifname enp2s0 slave-type team master Team0
Connection 'Team0-port2' (a89ccff8-8202-411e-8ca6-2953b7db52dd) successfully added.

~]$ nmcli connection up Team0-port1
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/2)

~]$ nmcli connection up Team0-port2
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/3)

~]$ ip link
3:  Team0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT
    link/ether 52:54:00:76:6f:f0 brd ff:ff:ff:ff:ff:f

~]$ nmcli connection up Team0
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/4)

~]$ ls /usr/share/doc/teamd-*/example_configs/
activebackup_arp_ping_1.conf  activebackup_multi_lw_1.conf   loadbalance_2.conf
activebackup_arp_ping_2.conf  activebackup_nsna_ping_1.conf  loadbalance_3.conf
activebackup_ethtool_1.conf   broadcast.conf                 random.conf
activebackup_ethtool_2.conf   lacp_1.conf                    roundrobin_2.conf
activebackup_ethtool_3.conf   loadbalance_1.conf             roundrobin.conf

~]$ cat /usr/share/doc/teamd-*/example_configs/activebackup_ethtool_1.conf
{
	"device":	"team0",
	"runner":	{"name": "activebackup"},
	"link_watch":	{"name": "ethtool"},
	"ports":	{
		"enp1s0": {
			"prio": -10,
			"sticky": true
		},
		"enp2s0": {
			"prio": 100
		}
	}
}

~]$ mkdir ~/teamd_working_configs

~]$ cp /usr/share/doc/teamd-*/example_configs/activebackup_ethtool_1.conf \ ~/teamd_working_configs/activebackup_ethtool_1.conf

~]$ vi ~/teamd_working_configs/activebackup_ethtool_1.conf

~]$ ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
    link/ether 52:54:00:d5:f7:d4 brd ff:ff:ff:ff:ff:ff
3: em2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
  link/ether 52:54:00:d8:04:70 brd ff:ff:ff:ff:ff:ff

~]# ip link set down em1

~]# cd /home/userteamd_working_configs

~]# teamd -g -f activebackup_ethtool_1.conf -d
Using team device "team0".
Using PID file "/var/run/teamd/team0.pid"
Using config file "/home/user/teamd_working_configs/activebackup_ethtool_1.conf"

~]# teamdctl team0 state
setup:
  runner: activebackup
ports:
  em1
    link watches:
      link summary: up
      instance[link_watch_0]:
        name: ethtool
        link: up
  em2
    link watches:
      link summary: up
      instance[link_watch_0]:
        name: ethtool
        link: up
runner:
  active port: em1

~]# ip addr add 192.168.23.2/24 dev team0

~]$ ip addr show team0
4: team0:  <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
    link/ether 16:38:57:60:20:6f brd ff:ff:ff:ff:ff:ff
    inet 192.168.23.2/24 scope global team0
       valid_lft forever preferred_lft forever
    inet6 2620:52:0:221d:1438:57ff:fe60:206f/64 scope global dynamic
       valid_lft 2591880sec preferred_lft 604680sec
    inet6 fe80::1438:57ff:fe60:206f/64 scope link
       valid_lft forever preferred_lft forever

~]# ip link set dev team0 up

~]# ip link set dev team0 down

~]# teamd -t team0 -k

~]$ teamd -h

DEVICE=team0
DEVICETYPE=Team
ONBOOT=yes
BOOTPROTO=none
IPADDR=192.168.11.1
PREFIX=24
TEAM_CONFIG='{"runner": {"name": "activebackup"}, "link_watch": {"name": "ethtool"}}'

DEVICE=enp1s0
HWADDR=D4:85:64:01:46:9E
DEVICETYPE=TeamPort
ONBOOT=yes
TEAM_MASTER=team0
TEAM_PORT_CONFIG='{"prio": 100}'

~]# ifup team0

~]$ ip link show

~]# ip link set dev em1 down
~]# ip link set dev em1 master team0

~]# teamnl team0 ports
em2: up 100 fullduplex
em1: up 100 fullduplex

~]# teamnl team0 options

~]# teamnl team0 setoption mode activebackup

~]# ip addr add 192.168.252.2/24 dev team0

~]# ip link set team0 up

~]# teamnl team0 getoption activeport
0

~]# teamnl team0 setoption activeport 5

~]# teamnl team0 getoption activeport
5

~]# teamdctl team0 port add em1

~]# teamdctl team0 port remove em1

~]# teamdctl team0 port config update em1 JSON-config-string

{
  "prio": -10,
  "sticky": true
}

~]# teamdctl team0 port config dump em1

{
 "device": "team0",
 "runner": {"name": "broadcast"},
 "ports": {"em1": {}, "em2": {}}
}

{
 "device": "team0",
 "runner": {"name": "random"},
 "ports": {"em1": {}, "em2": {}}
}

{
 "device": "team0",
 "runner": {"name": "roundrobin"},
 "ports": {"em1": {}, "em2": {}}
}

{
   "device": "team0",
   "runner": {
      "name": "activebackup"
   },
   "link_watch": {
      "name": "ethtool"
   },
   "ports": {
      "em1": {
         "prio": -10,
         "sticky": true
      },
      "em2": {
         "prio": 100
      }
   }
}

{
   "device": "team0",
   "runner": {
      "name": "activebackup"
   },
   "link_watch": {
      "name": "ethtool"
   },
   "ports": {
      "em1": {
         "prio": -10,
         "sticky": true,
         "queue_id": 4
      },
      "em2": {
         "prio": 100
      }
   }
}

{
   "device": "team0",
   "runner": {
      "name": "activebackup"
   },
   "link_watch": {
      "name": "ethtool",
      "delay_up": 2500,
      "delay_down": 1000
   },
   "ports": {
      "em1": {
         "prio": -10,
         "sticky": true
      },
      "em2": {
         "prio": 100
      }
   }
}

{
 "device": "team0",
 "runner": {
   "name": "loadbalance",
   "tx_hash": ["eth", "ipv4", "ipv6"]
 },
 "ports": {"em1": {}, "em2": {}}
}

{
   "device": "team0",
   "runner": {
     "name": "loadbalance",
     "tx_hash": ["eth", "ipv4", "ipv6"],
     "tx_balancer": {
       "name": "basic"
     }
   },
   "ports": {"em1": {}, "em2": {}}
}

{
   "device": "team0",
   "runner": {
       "name": "lacp",
       "active": true,
       "fast_rate": true,
       "tx_hash": ["eth", "ipv4", "ipv6"]
   },
     "link_watch": {"name": "ethtool"},
     "ports": {"em1": {}, "em2": {}}
}

"tx_balancer": {
       "name": "basic"
}

{
  "queue_id": 3
}

~]# tc qdisc add dev team0 handle 1 root multiq
~]# tc filter add dev team0 protocol ip parent 1: prio 1 u32 match ip dst \
  192.168.1.100 action skbedit queue_mapping 3

"tx_hash": ["eth", "ipv4", "ipv6"]