ipv6.dhcp-send-hostname: yes
ipv6.dhcp-hostname: --
[root@new-host-4 ~]# nmcli connection show static
connection.id: static
connection.uuid: 6ed539ad-9039-4903-8686-dd0d75896954
connection.interface-name: ens33
connection.type: 802-3-ethernet
connection.autoconnect: no
connection.autoconnect-priority: 0
connection.timestamp: 1451691995
connection.read-only: no
connection.permissions:
connection.zone: --
connection.master: --
connection.slave-type: --
connection.autoconnect-slaves: -1 (default)
connection.secondaries:
connection.gateway-ping-timeout: 0
connection.metered: unknown
802-3-ethernet.port: --
802-3-ethernet.speed: 0
802-3-ethernet.duplex: --
802-3-ethernet.auto-negotiate: yes
802-3-ethernet.mac-address: --
802-3-ethernet.cloned-mac-address: --
802-3-ethernet.mac-address-blacklist:
802-3-ethernet.mtu: auto
802-3-ethernet.s390-subchannels:
802-3-ethernet.s390-nettype: --
802-3-ethernet.s390-options:
802-3-ethernet.wake-on-lan: 1 (default)
802-3-ethernet.wake-on-lan-password: --
ipv4.method: manual
ipv4.dns:
ipv4.dns-search:
ipv4.addresses: 192.168.10.22/24
ipv4.gateway: 192.168.10.1
ipv4.routes:
ipv4.route-metric: -1
ipv4.ignore-auto-routes: no
ipv4.ignore-auto-dns: no
ipv4.dhcp-client-id: --
ipv4.dhcp-send-hostname: yes
ipv4.dhcp-hostname: --
ipv4.never-default: no
ipv4.may-fail: yes
ipv6.method: auto
ipv6.dns:
ipv6.dns-search:
ipv6.addresses:
ipv6.gateway: --
ipv6.routes:
ipv6.route-metric: -1
ipv6.ignore-auto-routes: no
ipv6.ignore-auto-dns: no
ipv6.never-default: no
ipv6.may-fail: yes
ipv6.ip6-privacy: -1 (unknown)
ipv6.dhcp-send-hostname: yes
ipv6.dhcp-hostname: --
[root@new-host-4 ~]# nmcli connection show static | grep -i auto
connection.autoconnect: no
connection.autoconnect-priority: 0
connection.autoconnect-slaves: -1 (default)
802-3-ethernet.auto-negotiate: yes
802-3-ethernet.mtu: auto
ipv4.ignore-auto-routes: no
ipv4.ignore-auto-dns: no
ipv6.method: auto
ipv6.ignore-auto-routes: no
ipv6.ignore-auto-dns: no
[root@new-host-4 ~]# nmcli con mod "static" connection.autoconnect yes
[root@new-host-4 ~]# ifconfig ens33
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.10.22 netmask 255.255.255.0 broadcast 192.168.10.255
inet6 fe80::20c:29ff:fe80:c1d2 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:80:c1:d2 txqueuelen 1000 (Ethernet)
RX packets 5118 bytes 1001886 (978.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 194 bytes 28144 (27.4 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@new-host-4 ~]# nmcli con up best
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkMana ger/ActiveConnection/9)
[root@new-host-4 ~]# ifconfig ens33
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.10.11 netmask 255.255.255.0 broadcast 192.168.10.255
inet6 fe80::20c:29ff:fe80:c1d2 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:80:c1:d2 txqueuelen 1000 (Ethernet)
RX packets 5130 bytes 1004593 (981.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 212 bytes 30869 (30.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@new-host-4 ~]# nmcli connection up static
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkMana ger/ActiveConnection/10)
[root@new-host-4 ~]# nmcli con mod static ipv4.dns 192.168.10.110
[root@new-host-4 ~]# cat /etc/resolv.conf
# Generated by NetworkManager
search home
nameserver 192.168.10.1
[root@new-host-4 ~]# nmcli mod static +ipv4.dns 8.8.8.8
Error: Object 'mod' is unknown, try 'nmcli help'.
[root@new-host-4 ~]# nmcli con mod static +ipv4.dns 8.8.8.8
[root@new-host-4 ~]# nmcli con mod static ipv4.addresses "192.168.10.222/24 192.16 8.10.1"
Error: failed to modify ipv4.addresses: invalid prefix '24 192.168.10.1'; <1-32> a llowed.
[root@new-host-4 ~]# nmcli con mod static ipv4.addresses "192.168.10.222/24 192.168.10.1" Error: failed to modify ipv4.addresses: invalid prefix '24 192.168.10.1'; <1-32> allowed.
[root@new-host-4 ~]# nmcli con mod static ipv4.addresses "192.168.10.222 255.255.255.0 192.168.10.1"
Error: failed to modify ipv4.addresses: invalid IP address: Invalid IPv4 address '192.168.10.222 255.255.255.0 192.168.10.1'.
[root@new-host-4 ~]# nmcli con mod static ipv4.addresses "192.168.10.122/24 192.168.10.1" Error: failed to modify ipv4.addresses: invalid prefix '24 192.168.10.1'; <1-32> allowed.
[root@new-host-4 ~]# nmcli con mod static ipv4.addresses "192.168.10.122/24"
[root@new-host-4 ~]# nmcli con status static
Usage: nmcli connection { COMMAND | help }
COMMAND := { show | up | down | add | modify | edit | delete | reload | load }
show [--active] [[--show-secrets] [id | uuid | path | apath] <ID>] ...
up [[id | uuid | path] <ID>] [ifname <ifname>] [ap <BSSID>] [passwd-file <file with passwords>]
down [id | uuid | path | apath] <ID> ...
add COMMON_OPTIONS TYPE_SPECIFIC_OPTIONS IP_OPTIONS
modify [--temporary] [id | uuid | path] <ID> ([+|-]<setting>.<property> <value>)+
edit [id | uuid | path] <ID>
edit [type <new_con_type>] [con-name <new_con_name>]
delete [id | uuid | path] <ID>
reload
load <filename> [ <filename>... ]
Error: 'status' is not valid 'connection' command.
[root@new-host-4 ~]# nmcli dev status static
Unknown parameter: static
DEVICE TYPE STATE CONNECTION
virbr0 bridge connected virbr0
ens33 ethernet connected static
ens37 ethernet connected Wired connection 1
virbr0-nic ethernet disconnected --
lo loopback unmanaged --
[root@new-host-4 ~]# nmcli dev status static ens33
Unknown parameter: static
Unknown parameter: ens33
DEVICE TYPE STATE CONNECTION
virbr0 bridge connected virbr0
ens33 ethernet connected static
ens37 ethernet connected Wired connection 1
virbr0-nic ethernet disconnected --
lo loopback unmanaged --
[root@new-host-4 ~]# nmcli con up static
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/11)
[root@new-host-4 ~]# nmcli dev status static ens33
Unknown parameter: static
Unknown parameter: ens33
DEVICE TYPE STATE CONNECTION
virbr0 bridge connected virbr0
ens33 ethernet connected static
ens37 ethernet connected Wired connection 1
virbr0-nic ethernet disconnected --
lo loopback unmanaged --
[root@new-host-4 ~]# ifconfig ens33
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.10.122 netmask 255.255.255.0 broadcast 192.168.10.255
inet6 fe80::20c:29ff:fe80:c1d2 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:80:c1:d2 txqueuelen 1000 (Ethernet)
RX packets 5326 bytes 1044006 (1019.5 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 289 bytes 41901 (40.9 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@new-host-4 ~]# list all devices (interfaces)^C
[root@new-host-4 ~]# nmcli dev status
DEVICE TYPE STATE CONNECTION
virbr0 bridge connected virbr0
ens33 ethernet connected static
ens37 ethernet connected Wired connection 1
virbr0-nic ethernet disconnected --
lo loopback unmanaged --
[root@new-host-4 ~]# list all connections^C
[root@new-host-4 ~]# nmcli connection show
NAME UUID TYPE DEVICE
Wired connection 2 14060a87-3977-46fe-a350-6ec3948627c2 802-3-ethernet --
Wired connection 1 07fdc26a-ec57-427e-a877-8bacc8893ecd 802-3-ethernet ens37
ens33 eaa62a4e-fb5c-4461-983a-58bad6f8cbf7 802-3-ethernet --
static 6ed539ad-9039-4903-8686-dd0d75896954 802-3-ethernet ens33
best 64c78344-15dd-442e-bc69-25c5bf2c1b6b 802-3-ethernet --
virbr0 b53ef7bb-7c98-4d88-9dc5-64cdab8f1bad bridge virbr0
[root@new-host-4 ~]# list only active connections
bash: list: command not found...
[root@new-host-4 ~]# nmcli con up ens33
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/12)
[root@new-host-4 ~]# activate a connection
bash: activate: command not found...
[root@new-host-4 ~]# nmcli con up ens33
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/13)
[root@new-host-4 ~]# de-activate a connection^C
[root@new-host-4 ~]# nmcli con down static
Error: 'static' is not an active connection.
Error: no active connection provided.
[root@new-host-4 ~]# nmcli con down best
Error: 'best' is not an active connection.
Error: no active connection provided.
[root@new-host-4 ~]# nmcli con down ens33
Connection 'ens33' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/13)
[root@new-host-4 ~]# bringdown the interface and disable autoconnect^C
[root@new-host-4 ~]# nmcli dev disconnect ens33
Device 'ens33' successfully disconnected.
[root@new-host-4 ~]# disable all managed interfaces
bash: disable: command not found...
[root@new-host-4 ~]# nmcli net off
[root@new-host-4 ~]# Enable all managed interfaces
[root@new-host-4 ~]# nmcli net on
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.10.122 netmask 255.255.255.0 broadcast 192.168.10.255
inet6 fe80::20c:29ff:fe80:c1d2 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:80:c1:d2 txqueuelen 1000 (Ethernet)
RX packets 5717 bytes 1099802 (1.0 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 645 bytes 202638 (197.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens37: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.10.9 netmask 255.255.255.0 broadcast 192.168.10.255
inet6 fe80::20c:29ff:fe80:c1dc prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:80:c1:dc txqueuelen 1000 (Ethernet)
RX packets 14854 bytes 1909941 (1.8 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 7451 bytes 2775734 (2.6 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 64 bytes 5440 (5.3 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 64 bytes 5440 (5.3 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 00:00:00:00:00:00 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0-nic: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 52:54:00:ec:67:76 txqueuelen 500 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@new-host-4 ~]#
[root@new-host-4 ~]# nmcli con del ens33^C
456 ls -l /etc/sysconfig/network-scripts/
457 pwd
458 cd /etc/sysconfig/network-scripts/
459 pwd
460 ls
461 ls -l *ens*
462 ifconfig -a
463 ls
464 more ifup-wireless
465 ls
466 ls -ltr
467 more ifcfg-ens33
468 htrp ens37 *
469 grep ens37 *
470 grep ens33 *
471 nmcli con show
472 ls
473 nmcli con show
474 nmcli con show --active
475 nmcli con show -a
476 man nm_settings
477 man nm-settings
478 nmcli con show "Wired connection"
479 nmcli con show "Wired connection 1"
480 nmcli dev status
481 nmcli device show ens37
482 nmcli dev show ens37
483 nmcli net on
484 ifconfig -a
485 history
[root@new-host-4 ~]#
[root@new-host-4 ~]# nslookup ashok.expanor.local
Server: 192.168.10.110
Address: 192.168.10.110#53
Name: ashok.expanor.local
Address: 192.168.10.122
[root@new-host-4 ~]# hostnamectl set-hostname ashok.expanor.local
[root@new-host-4 ~]# hostname
ashok.expanor.local
[root@new-host-4 ~]# hostnamectl status
Static hostname: ashok.expanor.local
Icon name: computer-vm
Chassis: vm
Machine ID: c52adc6d406d4d69904cf8ef9afbaf4a
Boot ID: 1439f42e91ca4645991e8aaf4d51ed6d
Virtualization: vmware
Operating System: CentOS Linux 7 (Core)
CPE OS Name: cpe:/o:centos:centos:7
Kernel: Linux 3.10.0-327.el7.x86_64
Architecture: x86-64
[root@new-host-4 ~]# cat /etc/hostname
ashok.expanor.local
[root@new-host-4 ~]#
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