network
references:
devops-kubernetes-controller
devops-kubernetes-02
/etc/network/interface
$ cat /etc/network/interfaces
auto lo
iface lo inet loopback
auto eno1
iface eno1 inet static
address 130.147.180.86
netmask 255.255.255.192
gateway 130.147.180.65
dns-nameservers 130.147.236.5 161.92.35.78
dns-search cn-132.lan.mycompany.com$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto eno1
iface eno1 inet static
address 130.147.180.86
netmask 255.255.255.192
gateway 130.147.180.65
dns-nameservers 130.147.236.5 161.92.35.78
dns-search cn-132.lan.mycompany.com
broadcast 130.147.219.127
network 130.147.219.0
auto eno3
# iface eno3 inet dhcp
# auto eno3
# iface eno3 inet static
# address 192.168.11.121
# netmask 255.255.254.0
# gateway 192.168.10.1
# dns-nameservers 61.139.2.69 218.6.200.139network info
$ nmcli [-p] d[evice] show <interface>$ nmcli -p d show eno1
===============================================================================
Device details (eno1)
===============================================================================
GENERAL.DEVICE: eno1
-------------------------------------------------------------------------------
GENERAL.TYPE: ethernet
-------------------------------------------------------------------------------
GENERAL.HWADDR: C4:34:6B:BA:31:8C
-------------------------------------------------------------------------------
GENERAL.MTU: 1500
-------------------------------------------------------------------------------
GENERAL.STATE: 10 (unmanaged)
-------------------------------------------------------------------------------
GENERAL.CONNECTION: --
-------------------------------------------------------------------------------
GENERAL.CON-PATH: --
-------------------------------------------------------------------------------
WIRED-PROPERTIES.CARRIER: on
-------------------------------------------------------------------------------
IP4.ADDRESS[1]: 130.147.180.86/26
IP4.GATEWAY: --
IP4.ROUTE[1]: dst = 161.92.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[2]: dst = 130.145.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[3]: dst = 180.166.223.190/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[4]: dst = 185.46.212.34/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[5]: dst = 130.140.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[6]: dst = 130.147.236.5/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[7]: dst = 130.147.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[8]: dst = 161.91.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[9]: dst = 161.84.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[10]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.ROUTE[11]: dst = 185.166.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[12]: dst = 130.146.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[13]: dst = 137.55.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[14]: dst = 161.83.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[15]: dst = 42.99.164.34/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[16]: dst = 161.85.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[17]: dst = 161.92.35.78/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[18]: dst = 140.207.91.234/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[19]: dst = 161.88.0.0/16, nh = 0.0.0.0, mt = 0
-------------------------------------------------------------------------------
IP6.ADDRESS[1]: fe80::c634:6bff:feba:318c/64
IP6.GATEWAY: --
-------------------------------------------------------------------------------
$ nmcli -p device show eno3
===============================================================================
Device details (eno3)
===============================================================================
GENERAL.DEVICE: eno3
-------------------------------------------------------------------------------
GENERAL.TYPE: ethernet
-------------------------------------------------------------------------------
GENERAL.HWADDR: C4:34:6B:BA:31:8E
-------------------------------------------------------------------------------
GENERAL.MTU: 1500
-------------------------------------------------------------------------------
GENERAL.STATE: 10 (unmanaged)
-------------------------------------------------------------------------------
GENERAL.CONNECTION: --
-------------------------------------------------------------------------------
GENERAL.CON-PATH: --
-------------------------------------------------------------------------------
WIRED-PROPERTIES.CARRIER: on
-------------------------------------------------------------------------------
IP4.ADDRESS[1]: 192.168.11.121/23
IP4.GATEWAY: 192.168.10.1
-------------------------------------------------------------------------------
IP6.ADDRESS[1]: fe80::c634:6bff:feba:318e/64
IP6.GATEWAY: --
-------------------------------------------------------------------------------
$ nmcli -p device show
===============================================================================
Device details (eno2)
===============================================================================
GENERAL.DEVICE: eno2
-------------------------------------------------------------------------------
GENERAL.TYPE: ethernet
-------------------------------------------------------------------------------
GENERAL.HWADDR: C4:34:6B:BA:31:8D
-------------------------------------------------------------------------------
GENERAL.MTU: 1500
-------------------------------------------------------------------------------
GENERAL.STATE: 20 (unavailable)
-------------------------------------------------------------------------------
GENERAL.CONNECTION: --
-------------------------------------------------------------------------------
GENERAL.CON-PATH: --
-------------------------------------------------------------------------------
WIRED-PROPERTIES.CARRIER: off
-------------------------------------------------------------------------------
===============================================================================
Device details (eno4)
===============================================================================
GENERAL.DEVICE: eno4
-------------------------------------------------------------------------------
GENERAL.TYPE: ethernet
-------------------------------------------------------------------------------
GENERAL.HWADDR: C4:34:6B:BA:31:8F
-------------------------------------------------------------------------------
GENERAL.MTU: 1500
-------------------------------------------------------------------------------
GENERAL.STATE: 20 (unavailable)
-------------------------------------------------------------------------------
GENERAL.CONNECTION: --
-------------------------------------------------------------------------------
GENERAL.CON-PATH: --
-------------------------------------------------------------------------------
WIRED-PROPERTIES.CARRIER: off
-------------------------------------------------------------------------------
===============================================================================
Device details (eno1)
===============================================================================
GENERAL.DEVICE: eno1
-------------------------------------------------------------------------------
GENERAL.TYPE: ethernet
-------------------------------------------------------------------------------
GENERAL.HWADDR: C4:34:6B:BA:31:8C
-------------------------------------------------------------------------------
GENERAL.MTU: 1500
-------------------------------------------------------------------------------
GENERAL.STATE: 10 (unmanaged)
-------------------------------------------------------------------------------
GENERAL.CONNECTION: --
-------------------------------------------------------------------------------
GENERAL.CON-PATH: --
-------------------------------------------------------------------------------
WIRED-PROPERTIES.CARRIER: on
-------------------------------------------------------------------------------
IP4.ADDRESS[1]: 130.147.180.86/26
IP4.GATEWAY: --
IP4.ROUTE[1]: dst = 161.92.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[2]: dst = 130.145.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[3]: dst = 180.166.223.190/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[4]: dst = 185.46.212.34/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[5]: dst = 130.140.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[6]: dst = 130.147.236.5/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[7]: dst = 130.147.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[8]: dst = 161.91.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[9]: dst = 161.84.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[10]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.ROUTE[11]: dst = 185.166.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[12]: dst = 130.146.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[13]: dst = 137.55.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[14]: dst = 161.83.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[15]: dst = 42.99.164.34/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[16]: dst = 161.85.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[17]: dst = 161.92.35.78/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[18]: dst = 140.207.91.234/32, nh = 130.147.180.65, mt = 0
IP4.ROUTE[19]: dst = 161.88.0.0/16, nh = 0.0.0.0, mt = 0
-------------------------------------------------------------------------------
IP6.ADDRESS[1]: fe80::c634:6bff:feba:318c/64
IP6.GATEWAY: --
-------------------------------------------------------------------------------
===============================================================================
Device details (eno3)
===============================================================================
GENERAL.DEVICE: eno3
-------------------------------------------------------------------------------
GENERAL.TYPE: ethernet
-------------------------------------------------------------------------------
GENERAL.HWADDR: C4:34:6B:BA:31:8E
-------------------------------------------------------------------------------
GENERAL.MTU: 1500
-------------------------------------------------------------------------------
GENERAL.STATE: 10 (unmanaged)
-------------------------------------------------------------------------------
GENERAL.CONNECTION: --
-------------------------------------------------------------------------------
GENERAL.CON-PATH: --
-------------------------------------------------------------------------------
WIRED-PROPERTIES.CARRIER: on
-------------------------------------------------------------------------------
IP4.ADDRESS[1]: 192.168.11.121/23
IP4.GATEWAY: 192.168.10.1
-------------------------------------------------------------------------------
IP6.ADDRESS[1]: fe80::c634:6bff:feba:318e/64
IP6.GATEWAY: --
-------------------------------------------------------------------------------
===============================================================================
Device details (lo)
===============================================================================
GENERAL.DEVICE: lo
-------------------------------------------------------------------------------
GENERAL.TYPE: loopback
-------------------------------------------------------------------------------
GENERAL.HWADDR: 00:00:00:00:00:00
-------------------------------------------------------------------------------
GENERAL.MTU: 65536
-------------------------------------------------------------------------------
GENERAL.STATE: 10 (unmanaged)
-------------------------------------------------------------------------------
GENERAL.CONNECTION: --
-------------------------------------------------------------------------------
GENERAL.CON-PATH: --
-------------------------------------------------------------------------------
IP4.ADDRESS[1]: 127.0.0.1/8
IP4.GATEWAY: --
-------------------------------------------------------------------------------
IP6.ADDRESS[1]: ::1/128
IP6.GATEWAY: --
-------------------------------------------------------------------------------Route Details
$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.10.1 0.0.0.0 UG 100 0 0 eno3
42.99.164.34 130.147.180.65 255.255.255.255 UGH 0 0 0 eno1
130.140.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
130.145.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
130.146.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
130.147.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
130.147.180.64 0.0.0.0 255.255.255.192 U 0 0 0 eno1
130.147.236.5 130.147.180.65 255.255.255.255 UGH 0 0 0 eno1
137.55.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
140.207.91.234 130.147.180.65 255.255.255.255 UGH 0 0 0 eno1
161.83.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
161.84.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
161.85.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
161.88.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
161.91.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
161.92.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
161.92.35.78 130.147.180.65 255.255.255.255 UGH 0 0 0 eno1
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eno1
180.166.223.190 130.147.180.65 255.255.255.255 UGH 0 0 0 eno1
185.46.212.34 130.147.180.65 255.255.255.255 UGH 0 0 0 eno1
185.166.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eno1
192.168.10.0 0.0.0.0 255.255.254.0 U 100 0 0 eno3devops-kubernetes-03
$ ifconfig en1
en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 6c:96:cf:f2:01:0a
inet6 fe80::81d:93a6:a4d4:32c2%en1 prefixlen 64 secured scopeid 0x6
inet 192.168.10.124 netmask 0xfffffe00 broadcast 192.168.11.255
nd6 options=201<PERFORMNUD,DAD>
media: autoselect
status: active
$ ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=10b<RXCSUM,TXCSUM,VLAN_HWTAGGING,AV>
ether 78:7b:8a:bc:c2:3c
inet6 fe80::1843:dfe3:4c35:c38%en0 prefixlen 64 secured scopeid 0x5
inet 130.147.182.248 netmask 0xfffffe00 broadcast 130.147.183.255
nd6 options=201<PERFORMNUD,DAD>
media: autoselect (100baseTX <full-duplex>)
status: activeifconfig
$ ifconfig
lo0: flags=8049 mtu 16384
options=1203
inet 127.0.0.1 netmask 0xff000000
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
nd6 options=201
gif0: flags=8010 mtu 1280
stf0: flags=0<> mtu 1280
XHC20: flags=0<> mtu 0
en0: flags=8863 mtu 1500
options=10b
ether 78:7b:8a:bc:c2:3c
inet6 fe80::1843:dfe3:4c35:c38%en0 prefixlen 64 secured scopeid 0x5
inet 130.147.182.248 netmask 0xfffffe00 broadcast 130.147.183.255
nd6 options=201
media: autoselect (100baseTX )
status: active
en1: flags=8863 mtu 1500
ether 6c:96:cf:f2:01:0a
inet6 fe80::81d:93a6:a4d4:32c2%en1 prefixlen 64 secured scopeid 0x6
inet 192.168.10.124 netmask 0xfffffe00 broadcast 192.168.11.255
nd6 options=201
media: autoselect
status: active
en2: flags=8963 mtu 1500
options=60
ether 2a:00:02:31:1e:a0
media: autoselect
status: inactive
en3: flags=8963 mtu 1500
options=60
ether 2a:00:02:31:1e:a1
media: autoselect
status: inactive
bridge0: flags=8863 mtu 1500
options=63
ether 2a:00:02:31:1e:a0
Configuration:
id 0:0:0:0:0:0 priority 0 hellotime 0 fwddelay 0
maxage 0 holdcnt 0 proto stp maxaddr 100 timeout 1200
root id 0:0:0:0:0:0 priority 0 ifcost 0 port 0
ipfilter disabled flags 0x2
member: en2 flags=3
ifmaxaddr 0 port 7 priority 0 path cost 0
member: en3 flags=3
ifmaxaddr 0 port 8 priority 0 path cost 0
nd6 options=201
media:
status: inactive
p2p0: flags=8843 mtu 2304
ether 0e:96:cf:f2:01:0a
media: autoselect
status: inactive
awdl0: flags=8943 mtu 1484
ether 6e:66:62:10:bb:fa
inet6 fe80::6c66:62ff:fe10:bbfa%awdl0 prefixlen 64 scopeid 0xb
nd6 options=201
media: autoselect
status: active
utun0: flags=8051 mtu 2000
inet6 fe80::2c33:8275:3276:346f%utun0 prefixlen 64 scopeid 0xc
nd6 options=201Last updated