> For the complete documentation index, see [llms.txt](https://imarslo.gitbook.io/handbook/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://imarslo.gitbook.io/handbook/virtualization/kubernetes/tools/network.md). # network * [devops-kubernetes-controller](#devops-kubernetes-controller) * [devops-kubernetes-02](#devops-kubernetes-02) * [/etc/network/interface](#etcnetworkinterface) * [network info](#network-info) * [Route Details](#route-details) * [devops-kubernetes-03](#devops-kubernetes-03) {% hint style="info" %} > references: > > * [Traefik 另类的服务暴露方式](https://mritd.com/2018/05/24/kubernetes-traefik-service-exposure/) > {% endhint %} ### devops-kubernetes-controller ### devops-kubernetes-02 #### /etc/network/interface ```bash $ 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 ``` ```bash $ 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 61.139.2.69 218.6.200.139 ``` #### network info ```bash $ nmcli [-p] d[evice] show ``` ```bash $ 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 ```bash $ 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 eno3 ``` ### devops-kubernetes-03 ```bash $ ifconfig en1 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 $ ifconfig en0 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 ```
ifconfig ``` $ 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=201 ```
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