网络工具
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网络工具
配置网络有很多工具，以下具体做下工具的简介：
ifconfig命令
ifconfig命令被用于配置和显示Linux内核中网络接口的网络参数
ifconfig [网络设备][参数] ifconfig -a ifconfig IFACE [ up | down ] 参数： add <地址>：设置网络设备IPV6的IP地址； del <地址>；删除网络设备的IPV6地址 down: 关闭指定设备 hw ： 硬件设备的MAC地址 mtu ： 设置网络最大MTU值 netmask： 子网掩码 up: 开启指定设备实例：1 ifconfig直接显示网络信息
[root@localhost ~]#ifconfig <-- 直接输入是显示当前网络配置信息 ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.3.3 netmask 255.255.255.0 broadcast 192.168.3.255 inet6 fe80::4f5c:981f:ccf5:8821 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:12:ae:2f txqueuelen 1000 (Ethernet) RX packets 558 bytes 60821 (59.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 371 bytes 99707 (97.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ens37: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 222.222.222.222 netmask 255.255.255.0 broadcast 222.222.222.255 inet6 fe80::1fcd:de78:df2b:afd1 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:12:ae:39 txqueuelen 1000 (Ethernet) RX packets 41803 bytes 3074642 (2.9 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 110 bytes 12848 (12.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 实例：2 down 和 up 指定网卡
[root@localhost ~]#ifconfig ens37 down [root@localhost ~]#ip a <--查看所有网卡信息 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:12:ae:2f brd ff:ff:ff:ff:ff:ff inet 192.168.3.3/24 brd 192.168.3.255 scope global ens33 valid_lft forever preferred_lft forever inet6 fe80::4f5c:981f:ccf5:8821/64 scope link 关闭状态 valid_lft forever preferred_lft forever | 3: ens37: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000 link/ether 00:0c:29:12:ae:39 brd ff:ff:ff:ff:ff:ff [root@localhost ~]#ifconfig ens37 up [root@localhost ~]#ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:12:ae:2f brd ff:ff:ff:ff:ff:ff inet 192.168.3.3/24 brd 192.168.3.255 scope global ens33 valid_lft forever preferred_lft forever UP状态 inet6 fe80::4f5c:981f:ccf5:8821/64 scope link | 3: ens37: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:12:ae:39 brd ff:ff:ff:ff:ff:ff inet 172.18.253.205/16 brd 172.18.255.255 scope global dynamic ens37 valid_lft 86397sec preferred_lft 86397sec inet6 fe80::1fcd:de78:df2b:afd1/64 scope link valid_lft forever preferred_lft forever 实例：3 修改IP地址，此命令修改的IP只存于内存中，重启或退出后就无效了
[root@localhost ~]#ifconfig ens37 222.222.222.222/24 [root@localhost ~]#ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.3.3 netmask 255.255.255.0 broadcast 192.168.3.255 inet6 fe80::4f5c:981f:ccf5:8821 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:12:ae:2f txqueuelen 1000 (Ethernet) RX packets 1058 bytes 116869 (114.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 687 bytes 158377 (154.6 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ens37: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 222.222.222.222 netmask 255.255.255.0 broadcast 222.222.222.255 inet6 fe80::1fcd:de78:df2b:afd1 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:12:ae:39 txqueuelen 1000 (Ethernet) RX packets 52295 bytes 3798547 (3.6 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 155 bytes 20392 (19.9 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 route命令
route命令用来显示并设置Linux内核中的网络路由表，route命令设置的路由主要是静态路由
route (选项)(参数) 选项： -A 设置地址类型； -C 打印将Linux核心的路由缓存； -v 详细信息模式； -n 显示详细路由表 -e netstat格式显示路由表 -net 到一个网络的路由表 -host 到一台主机的路由表 参数： add: 增加路由记录 del: 删除指定路由记录 Target: 目的网络或目的主机 gw: 网关 dev: 路由记录所表示的网络接口实例1：显示当前路由
[root@localhost ~]#route 不加参数直接显示路由信息，目标地址与加了-n的不同 Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default gateway 0.0.0.0 UG 100 0 0 ens33 default gateway 0.0.0.0 UG 101 0 0 ens37 172.18.0.0 0.0.0.0 255.255.0.0 U 100 0 0 ens37 192.168.3.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33 192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0 [root@localhost ~]#route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.3.1 0.0.0.0 UG 100 0 0 ens33 0.0.0.0 172.18.0.1 0.0.0.0 UG 101 0 0 ens37 172.18.0.0 0.0.0.0 255.255.0.0 U 100 0 0 ens37 192.168.3.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33 ## ##192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0 实例2： 删除一条路由和添加一条路由
[root@localhost ~]#route del -net 0.0.0.0 <-- 删除路由时如果不添加后续的参数也是可以的[root@localhost ~]#route -nKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Iface172.18.0.0 0.0.0.0 255.255.0.0 U 100 0 0 ens37192.168.3.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0[root@localhost ~]#route add default gw 172.18.0.1[root@localhost ~]#route add default gw 192.168.3.1[root@localhost ~]#route -nKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Iface0.0.0.0 192.168.3.1 0.0.0.0 UG 0 0 0 ens330.0.0.0 172.18.0.1 0.0.0.0 UG 0 0 0 ens37172.18.0.0 0.0.0.0 255.255.0.0 U 100 0 0 ens37192.168.3.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0netstat 命令
显示网络连接及路由表接口状态
netstat [--tcp|-t] [--udp|-u] [--raw|-w] [--listening|-l] [--all|-a] [--numeric|-n] [--extend|-e[--extend|-e]] [--program|-p]选项： -t: tcp协议相 -u: udp协议相关 -w: raw socket相关 -l: 处于监听状态 -a: 所有状态 -n: 以数字显示IP和端口； -e：扩展格式 -p: 显示相关进程及P -r: 显示内核路由表常用的选项： netstat -tnl , netstat -unl , netstat -tan , netstat -uan实例：
[root@localhost ~]#netstat -tnl Active Internet connections (only servers)Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN tcp 0 0 192.168.122.1:53 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN tcp6 0 0 :::111 :::* LISTEN tcp6 0 0 :::22 :::* LISTEN tcp6 0 0 ::1:631 :::* LISTEN tcp6 0 0 ::1:25 :::* LISTEN ip 命令
查看或调整路由，网络设备，策略路由和隧道
ip [ OPTIONS ] OBJECT { COMMAND | help 选项： -V：显示指令版本信息； -s：输出更详细的信息； -f：强制使用指定的协议族； -4：指定使用的网络层协议是IPv4协议； -6：指定使用的网络层协议是IPv6协议； -0：输出信息每条记录输出一行，即使内容较多也不换行显示； -r：显示主机时，不使用IP地址，而使用主机的域名。 项目： link: 链路 addr: 地址 route:路由实例1：添加ip别名及地址
[root@localhost ~]#ip addr add 172.18.0.11/16 dev ens37 label ens37:1 <--创建ens37:1的别名[root@localhost ~]#ifconfigens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.3.3 netmask 255.255.255.0 broadcast 192.168.3.255 inet6 fe80::4f5c:981f:ccf5:8821 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:12:ae:2f txqueuelen 1000 (Ethernet) RX packets 2106 bytes 226018 (220.7 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1321 bytes 381623 (372.6 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0ens37: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 172.18.253.205 netmask 255.255.0.0 broadcast 172.18.255.255 inet6 fe80::1fcd:de78:df2b:afd1 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:12:ae:39 txqueuelen 1000 (Ethernet) RX packets 395630 bytes 25797238 (24.6 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 206 bytes 18381 (17.9 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0ens37:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 172.18.0.11 netmask 255.255.0.0 broadcast 0.0.0.0 ether 00:0c:29:12:ae:39 txqueuelen 1000 (Ethernet)实例2：清除网卡别名
[root@localhost ~]#ip addr flush dev ens37 label ens37:1 <--冲刷ens37:1的别名[root@localhost ~]#ifconfig <--再次查看已没有了别名ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.3.3 netmask 255.255.255.0 broadcast 192.168.3.255 inet6 fe80::4f5c:981f:ccf5:8821 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:12:ae:2f txqueuelen 1000 (Ethernet) RX packets 2347 bytes 251188 (245.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1459 bytes 421301 (411.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0ens37: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 172.18.253.205 netmask 255.255.0.0 broadcast 172.18.255.255 inet6 fe80::1fcd:de78:df2b:afd1 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:12:ae:39 txqueuelen 1000 (Ethernet) RX packets 398184 bytes 25973444 (24.7 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 212 bytes 18906 (18.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0lo: 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 1 (Local Loopback) 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 0virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255 ether 52:54:00:3a:bb:da txqueuelen 1000 (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实例3：添加路由
[root@localhost ~]#route -nKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Iface0.0.0.0 192.168.3.1 0.0.0.0 UG 0 0 0 ens330.0.0.0 172.18.0.1 0.0.0.0 UG 0 0 0 ens37172.18.0.0 0.0.0.0 255.255.0.0 U 100 0 0 ens37192.168.3.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0[root@localhost ~]#ip route add 192.168.59.0/24 via 192.168.3.1[root@localhost ~]#route -nKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Iface0.0.0.0 192.168.3.1 0.0.0.0 UG 0 0 0 ens330.0.0.0 172.18.0.1 0.0.0.0 UG 0 0 0 ens37172.18.0.0 0.0.0.0 255.255.0.0 U 100 0 0 ens37192.168.3.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33192.168.59.0 192.168.3.1 255.255.255.0 UG 0 0 0 ens33192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0[root@localhost ~]#ip route add 192.168.58.0/24 via 192.168.3.1 dev ens33[root@localhost ~]#route -nKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Iface0.0.0.0 192.168.3.1 0.0.0.0 UG 0 0 0 ens330.0.0.0 172.18.0.1 0.0.0.0 UG 0 0 0 ens37172.18.0.0 0.0.0.0 255.255.0.0 U 100 0 0 ens37192.168.3.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33192.168.58.0 192.168.3.1 255.255.255.0 UG 0 0 0 ens33192.168.59.0 192.168.3.1 255.255.255.0 UG 0 0 0 ens33192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0实例4：删除路由
[root@localhost ~]#ip route del 192.168.58.0/24[root@localhost ~]#ip route del 192.168.59.0/24[root@localhost ~]#route -nKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Iface0.0.0.0 192.168.3.1 0.0.0.0 UG 0 0 0 ens330.0.0.0 172.18.0.1 0.0.0.0 UG 0 0 0 ens37172.18.0.0 0.0.0.0 255.255.0.0 U 100 0 0 ens37192.168.3.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0实例5：清空接口路由
[root@localhost ~]#ip route flush dev ens37[root@localhost ~]#route -nKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Iface0.0.0.0 192.168.3.1 0.0.0.0 UG 0 0 0 ens33192.168.3.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0 ss命令
显示活动状态的套接字信息
格式： ss [option] ...[filter] 选项： -t: tcp协议相 -u: udp协议相关 -w: 裸套接字相关 -x：unix sock相关 -l: listen状态的连接 -a: 所有 -n: 数字格式 -p: 相关的程序及PID -e: 扩展的信息 -m：内存用量 -o：计时器 过滤: FILTER : [ state TCP-STATE ] [ EXPRESSION ] TCP的常见状态： tcp finite state machine: LISTEN: 监听 ESTABLISHED：已建立的连接 FIN_WAIT_1 FIN_WAIT_2 SYN_SENT SYN_RECV CLOSED 表达示： EXPRESSION: dport = sport = 示例：'( dport = :ssh or sport = :ssh )' 常用组合： ss -tan , ss -tanl , ss -tanlp , ss -uan 实例1 ：
[root@localhost ~]#ss -tnlState Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 128 *:111 *:* LISTEN 0 5 192.168.122.1:53 *:* LISTEN 0 128 *:22 *:* LISTEN 0 128 127.0.0.1:631 *:* LISTEN 0 100 127.0.0.1:25 *:* LISTEN 0 128 :::111 :::* LISTEN 0 128 :::22 :::* LISTEN 0 128 ::1:631 :::* LISTEN 0 100 ::1:25 :::* 实例2：显示所有已建立的ssh连接
[root@localhost ~]#ss -o state established '( dport = :ssh or sport = :ssh )'Netid Recv-Q Send-Q Local Address:Port Peer Address:Port tcp 0 0 192.168.3.3:ssh 192.168.3.1:58074 timer:(keepalive,16min,0)nmcli 命令
命令行工具，用于控制网络管理
nmcli [ OPTIONS ] OBJECT { COMMAND | help } 选项： -t[erse] 简要输出 -p[retty] 完美输出 -m[ode] tabular|multiline 输出模式 -c[olors] auto|yes|no 使用颜色输出 -f[ields] <field1,field2,...>|all|common 指定范围输出 -e[scape] yes|no escape columns separators in values -a[sk] 要求这缺少的参数 -s[how-secrets] 参许显示出密码 -w[ait] <seconds> 配置超时时间等待操作完成 -v[ersion] 查看程序的版本 -h[elp] 显示帮助信息 项目： g[enera]: nmcli general {status | hostname | permissions | logging} n[etworking]: nmcli networking {on | off | connectivity} r[adio]: nmcli radio {all | wifi | wwan} c[onnection]: nmcli connection {show | up | down | modify | add | edit | clone | delete | monitor | reload | load | import | export } d[evice]: nmcli device {status | show | set | connect | reapply | modify | disconnect | delete | monitor | wifi | lldp} a[gent]: nmcli agent {secret | polkit | all} m[onitor]: nmcli monitor 常用的OBJECT 是 connection
[root@localhost ~]#nmcli c -helpUsage: nmcli connection { COMMAND | help }COMMAND := { show | up | down | add | modify | clone | edit | delete | monitor | reload | load | import | export } show [--active] [--order <order spec>] show [--active] [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 SLAVE_OPTIONS IP_OPTIONS [-- ([+|-]<setting>.<property> <value>)+] modify [--temporary] [id | uuid | path] <ID> ([+|-]<setting>.<property> <value>)+ clone [--temporary] [id | uuid | path ] <ID> <new name> edit [id | uuid | path] <ID> edit [type <new_con_type>] [con-name <new_con_name>] delete [id | uuid | path] <ID> monitor [id | uuid | path] <ID> ... reload load <filename> [ <filename>... ] import [--temporary] type <type> file <file to import> export [id | uuid | path] <ID> [<output file>]查看连接简要信息 nmcli c show [root@localhost ~]#nmcli c showNAME UUID TYPE DEVICE Wired connection 1 61765cc9-01d2-3a86-8fd8-3a2f28bc14ec 802-3-ethernet ens37 ens33 11d11312-cf20-412f-a5c8-d662b67f4f6e 802-3-ethernet ens33 virbr0 23d111b9-ce71-44ef-a3a7-6c0e6aaaeed4 bridge 查看某个连接的信息 nmcli c show conn-name[root@localhost ~]#nmcli c show ens33connection.id: ens33connection.uuid: 11d11312-cf20-412f-a5c8-d662b67f4f6econnection.stable-id: --connection.interface-name: ens33connection.type: 802-3-ethernetconnection.autoconnect: yesconnection.autoconnect-priority: 0connection.timestamp: 1503627532connection.read-only: noconnection.permissions: connection.zone: --connection.master: --connection.slave-type: --connection.autoconnect-slaves: -1 (default)connection.secondaries: connection.gateway-ping-timeout: 0connection.metered: unknownconnection.lldp: -1 (default)802-3-ethernet.port: --802-3-ethernet.speed: 0802-3-ethernet.duplex: --802-3-ethernet.auto-negotiate: yes802-3-ethernet.mac-address: --802-3-ethernet.cloned-mac-address: --802-3-ethernet.generate-mac-address-mask:--802-3-ethernet.mac-address-blacklist: 802-3-ethernet.mtu: auto802-3-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: manualipv4.dns: ipv4.dns-search: ipv4.dns-options: (default)ipv4.dns-priority: 0ipv4.addresses: 192.168.3.3/24ipv4.gateway: 192.168.3.1ipv4.routes: ipv4.route-metric: -1ipv4.ignore-auto-routes: noipv4.ignore-auto-dns: noipv4.dhcp-client-id: --ipv4.dhcp-timeout: 0ipv4.dhcp-send-hostname: yesipv4.dhcp-hostname: --ipv4.dhcp-fqdn: --ipv4.never-default: noipv4.may-fail: yesipv4.dad-timeout: -1 (default)ipv6.method: autoipv6.dns: ipv6.dns-search: ipv6.dns-options: (default)ipv6.dns-priority: 0ipv6.addresses: ipv6.gateway: --ipv6.routes: ipv6.route-metric: -1ipv6.ignore-auto-routes: noipv6.ignore-auto-dns: noipv6.never-default: noipv6.may-fail: yesipv6.ip6-privacy: 0 (disabled)ipv6.addr-gen-mode: stable-privacyipv6.dhcp-send-hostname: yesipv6.dhcp-hostname: --ipv6.token: --GENERAL.NAME: ens33GENERAL.UUID: 11d11312-cf20-412f-a5c8-d662b67f4f6eGENERAL.DEVICES: ens33GENERAL.STATE: activatedGENERAL.DEFAULT: yesGENERAL.DEFAULT6: noGENERAL.VPN: noGENERAL.ZONE: --GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/ActiveConnection/0GENERAL.CON-PATH: /org/freedesktop/NetworkManager/Settings/0GENERAL.SPEC-OBJECT: /GENERAL.MASTER-PATH: --IP4.ADDRESS[1]: 192.168.3.3/24IP4.GATEWAY: 192.168.3.1IP6.ADDRESS[1]: fe80::4f5c:981f:ccf5:8821/64IP6.GATEWAY: 添加IP nmcli con add type__ con-name__ ifname interface-name ip4 命令 项目 子命令 网络类型(ethernet) 命名的连接名（ens33 ,eth1) 设备名：（ens33 eth1) ip4 (ip地址)[root@localhost network-scripts]#nmcli connection add type ethernet con-name static-ens37 ifname ens37 ip4 172.18.6.10/16[root@localhost network-scripts]#nmcli connection up ens37[root@localhost network-scripts]#ip a1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:12:ae:2f brd ff:ff:ff:ff:ff:ff inet 192.168.3.3/24 brd 192.168.3.255 scope global ens33 valid_lft forever preferred_lft forever inet6 fe80::4f5c:981f:ccf5:8821/64 scope link valid_lft forever preferred_lft forever3: ens37: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:12:ae:39 brd ff:ff:ff:ff:ff:ff inet 172.18.6.10/16 brd 172.18.255.255 scope global ens37 valid_lft forever preferred_lft forever inet6 fe80::8eee:82d4:e231:fa2f/64 scope link valid_lft forever preferred_lft forever 修改IP nmcli connection modify IFACE setting.property value gw4 命令 连接 修改 接口 ipv4.address ip地址 gw4 网关地址[root@localhost network-scripts]#nmcli c mo ens37 ipv4.addresses 172.18.6.11/16 gw4 172.18.6.1/16[root@localhost network-scripts]#nmcli c down ens37 && nmcli c up ens37Connection 'ens37' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/15)Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/17)[root@localhost network-scripts]#ip a1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:12:ae:2f brd ff:ff:ff:ff:ff:ff inet 192.168.3.3/24 brd 192.168.3.255 scope global ens33 valid_lft forever preferred_lft forever inet6 fe80::4f5c:981f:ccf5:8821/64 scope link valid_lft forever preferred_lft forever3: ens37: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:12:ae:39 brd ff:ff:ff:ff:ff:ff inet 172.18.6.11/16 brd 172.18.255.255 scope global ens37 valid_lft forever preferred_lft forever inet6 fe80::2899:7cd6:3856:cde5/64 scope link valid_lft forever preferred_lft forever4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000 link/ether 52:54:00:3a:bb:da brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0 valid_lft forever preferred_lft forever5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000 link/ether 52:54:00:3a:bb:da brd ff:ff:ff:ff:ff:ff接口bond网卡
4步：
1.添加bonding接口
2.添加bonding接口的奴隶接口
3.启用奴隶接口
4.启用bonding接口
添加bonding接口 ： 命令 连接 添加 类型 连接名 设备名 模式 [root@localhost ~]#nmcli connection add type bond con-name bond0 ifname bond0 mode active-backup Connection 'bond0' (3af850f0-d197-444c-9148-2010f04a38e2) successfully added.添加奴隶接口： 命令 连接 添加 类型 设备名 母设备[root@localhost ~]#nmcli connection add type bond-slave ifname ens38 master bond0Connection 'bond-slave-ens38' (17b1d1b1-bb56-4cce-9d96-f7b32be9fd60) successfully added.[root@localhost ~]#nmcli connection add type bond-slave ifname ens39 master bond0 Connection 'bond-slave-ens39' (0289bb46-8775-46dd-bee7-1d96982afabf) successfully added.启用奴隶接口：[root@localhost ~]#nmcli connection up bond-slave-ens38 && nmcli connection up bond-slave-ens39Connection successfullyactivated(DBusactivepath:/org/freedesktop/NetworkManager/ActiveConnection/7)Connection successfullyactivated(DBusactivepath:/org/freedesktop/NetworkManager/ActiveConnection/8)启用bonding接口[root@localhost ~]#nmcli connection up bond0Connectionsuccessfullyactivated(masterwaitingforslaves(DBusactivepath:/org/freedesktop/NetworkManager/ActiveConnection/9)查看网卡信息[root@localhost ~]#ip a1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:12:ae:2f brd ff:ff:ff:ff:ff:ff inet 192.168.3.3/24 brd 192.168.3.255 scope global ens33 valid_lft forever preferred_lft forever inet6 fe80::4f5c:981f:ccf5:8821/64 scope link valid_lft forever preferred_lft forever3: ens37: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:12:ae:39 brd ff:ff:ff:ff:ff:ff inet 172.18.6.11/16 brd 172.18.255.255 scope global ens37 valid_lft forever preferred_lft forever inet6 fe80::2899:7cd6:3856:cde5/64 scope link valid_lft forever preferred_lft forever4: ens38: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP qlen 1000 link/ether 00:0c:29:12:ae:43 brd ff:ff:ff:ff:ff:ff5: ens39: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP qlen 1000 link/ether 00:0c:29:12:ae:43 brd ff:ff:ff:ff:ff:ff6: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000 link/ether 52:54:00:3a:bb:da brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0 valid_lft forever preferred_lft forever7: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000 link/ether 52:54:00:3a:bb:da brd ff:ff:ff:ff:ff:ff8: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000 link/ether 00:0c:29:12:ae:43 brd ff:ff:ff:ff:ff:ff inet 192.168.3.136/24 brd 192.168.3.255 scope global dynamic bond0 valid_lft 1798sec preferred_lft 1798sec inet6 fe80::52:a23c:e27d:fa92/64 scope link 阅读全文
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