黑龙江网站建设开发,网站建设是不是无形资产,wordpress默认根目录,做鞋原料网站Linux系统之网卡子接口配置方法一、本地系统环境检查1.检查系统版本2.检查系统内核版本3.检查本地IP地址二、网卡子接口介绍1.网卡子接口简介2.网卡子接口的优点3.网卡子接口的缺点三 加载802.1q 模块1.查看系统802.1q 模块信息2.加载802.1q 模块3.检查802.1q 模块加载状态四、…
Linux系统之网卡子接口配置方法一、本地系统环境检查1.检查系统版本2.检查系统内核版本3.检查本地IP地址二、网卡子接口介绍1.网卡子接口简介2.网卡子接口的优点3.网卡子接口的缺点三 加载802.1q 模块1.查看系统802.1q 模块信息2.加载802.1q 模块3.检查802.1q 模块加载状态四、配置网卡子接口1.设置静态IP地址2.创建ens33:0配置文件3.修改ens33:0文件4.重启网卡5.查看子接口IP地址五、测试网卡子接口一、本地系统环境检查
1.检查系统版本
[rootjeven ~]# cat /etc/centos-release
CentOS Linux release 7.6.1810 (Core) 2.检查系统内核版本
[rootjeven ~]# uname -r
3.10.0-957.el7.x86_643.检查本地IP地址
[rootjeven ~]# ifconfig |grep -C 5 ens33RX packets 0 bytes 0 (0.0 B)RX errors 0 dropped 0 overruns 0 frame 0TX packets 0 bytes 0 (0.0 B)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0ens33: flags4163UP,BROADCAST,RUNNING,MULTICAST mtu 1500inet 192.168.3.166 netmask 255.255.255.0 broadcast 192.168.3.255inet6 fe80::8a83:7297:7cb8:9934 prefixlen 64 scopeid 0x20linkether 00:0c:29:4f:3c:68 txqueuelen 1000 (Ethernet)RX packets 1859420 bytes 2414510963 (2.2 GiB)RX errors 0 dropped 0 overruns 0 frame 0
二、网卡子接口介绍
1.网卡子接口简介 在日常的运维工作当中我们有时候需要在一块物理网卡上配置多个IP地址这就是网卡子接口的概念。 2.网卡子接口的优点 打破物理网卡接口数量的限制可以在一个接口中实现多个VLAN间的路由和通信。 3.网卡子接口的缺点 由于是多个子接口共用主接口会让子接口性能比单个物理接口差在网络流量过大网络繁忙会造成通信及网络流量瓶颈。 三 加载802.1q 模块
1.查看系统802.1q 模块信息 查看系统802.1q 模块信息 [rootjeven ~]# modinfo 8021q
filename: /lib/modules/3.10.0-957.el7.x86_64/kernel/net/8021q/8021q.ko.xz
version: 1.8
license: GPL
alias: rtnl-link-vlan
retpoline: Y
rhelversion: 7.6
srcversion: 931E6349BAB0ACE4D4A3A50
depends: mrp,garp
intree: Y
vermagic: 3.10.0-957.el7.x86_64 SMP mod_unload modversions
signer: CentOS Linux kernel signing key
sig_key: B7:0D:CF:0D:F2:D9:B7:F2:91:59:24:82:49:FD:6F:E8:7B:78:14:27
sig_hashalgo: sha256
2.加载802.1q 模块
modprobe 8021q ### 加载模块
3.检查802.1q 模块加载状态
[rootjeven ~]# lsmod | grep 8021q
8021q 33208 0
garp 14384 1 8021q
mrp 18542 1 8021q
四、配置网卡子接口
1.设置静态IP地址 将物理网卡地址由DHCP获取设置为静态IP地址。 进入网卡配置文件目录
[rootjeven ~]# cd /etc/sysconfig/network-scripts/
[rootjeven network-scripts]# ls
ifcfg-ens33 ifdown-bnep ifdown-ipv6 ifdown-routes ifdown-tunnel ifup-eth ifup-isdn ifup-ppp ifup-TeamPort network-functions
ifcfg-ens33.bak ifdown-eth ifdown-isdn ifdown-sit ifup ifup-ib ifup-plip ifup-routes ifup-tunnel network-functions-ipv6
ifcfg-lo ifdown-ib ifdown-post ifdown-Team ifup-aliases ifup-ippp ifup-plusb ifup-sit ifup-wireless
ifdown ifdown-ippp ifdown-ppp ifdown-TeamPort ifup-bnep ifup-ipv6 ifup-post ifup-Team init.ipv6-global修改物理网卡配置文件
[rootjeven network-scripts]# cat ifcfg-ens33
TYPEEthernet
BOOTPROTOstatic
DEFROUTEyes
IPADDR192.168.3.166
NETMASK255.255.255.0
GATEWAY192.168.3.254
DNS1192.168.3.254
IPV6INITyes
IPV6_AUTOCONFyes
IPV6_DEFROUTEyes
IPV6_FAILURE_FATALno
IPV6_ADDR_GEN_MODEstable-privacy
NAMEens33
UUIDba415981-963e-4130-984a-8dd764f4bb70
DEVICEens33
ONBOOTyes
ZONEpublic
重启网卡
[rootjeven network-scripts]# service network restart
Restarting network (via systemctl): [ OK ]
[rootjeven network-scripts]#
2.创建ens33:0配置文件 将ifcfg-ens33配置文件拷贝并改名为ifcfg-ens33:0文件 [rootjeven network-scripts]# ls
ifcfg-ens33 ifdown-bnep ifdown-ipv6 ifdown-routes ifdown-tunnel ifup-eth ifup-isdn ifup-ppp ifup-TeamPort network-functions
ifcfg-ens33.bak ifdown-eth ifdown-isdn ifdown-sit ifup ifup-ib ifup-plip ifup-routes ifup-tunnel network-functions-ipv6
ifcfg-lo ifdown-ib ifdown-post ifdown-Team ifup-aliases ifup-ippp ifup-plusb ifup-sit ifup-wireless
ifdown ifdown-ippp ifdown-ppp ifdown-TeamPort ifup-bnep ifup-ipv6 ifup-post ifup-Team init.ipv6-global
[rootjeven network-scripts]# cp ifcfg-ens33 ifcfg-ens33:0
[rootjeven network-scripts]# ls
ifcfg-ens33 ifdown ifdown-ippp ifdown-ppp ifdown-TeamPort ifup-bnep ifup-ipv6 ifup-post ifup-Team init.ipv6-global
ifcfg-ens33:0 ifdown-bnep ifdown-ipv6 ifdown-routes ifdown-tunnel ifup-eth ifup-isdn ifup-ppp ifup-TeamPort network-functions
ifcfg-ens33.bak ifdown-eth ifdown-isdn ifdown-sit ifup ifup-ib ifup-plip ifup-routes ifup-tunnel network-functions-ipv6
ifcfg-lo ifdown-ib ifdown-post ifdown-Team ifup-aliases ifup-ippp ifup-plusb ifup-sit ifup-wireless
[rootjeven network-scripts]#
3.修改ens33:0文件 修改ifcfg-ens33:0文件,内容如下 [rootjeven network-scripts]# cat ifcfg-ens33:0
TYPEEthernet
BOOTPROTOstatic
IPADDR192.168.3.33
NETMASK255.255.255.0
GATEWAY192.168.3.254
DNS1192.168.3.254
DEVICEens33:0
ONBOOTyes
ZONEpublic
4.重启网卡
[rootjeven network-scripts]# service network restart
Restarting network (via systemctl): [ OK ]5.查看子接口IP地址 查看子接口IP地址可以看到网卡子接口配置已生效。 [rootjeven network-scripts]# ifconfig |grep ens33
ens33: flags4163UP,BROADCAST,RUNNING,MULTICAST mtu 1500
ens33:0: flags4163UP,BROADCAST,RUNNING,MULTICAST mtu 1500
[rootjeven network-scripts]# ifconfig |grep -C 5 ens33RX packets 0 bytes 0 (0.0 B)RX errors 0 dropped 0 overruns 0 frame 0TX packets 0 bytes 0 (0.0 B)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0ens33: flags4163UP,BROADCAST,RUNNING,MULTICAST mtu 1500inet 192.168.3.166 netmask 255.255.255.0 broadcast 192.168.3.255inet6 fe80::8a83:7297:7cb8:9934 prefixlen 64 scopeid 0x20linkether 00:0c:29:4f:3c:68 txqueuelen 1000 (Ethernet)RX packets 1862362 bytes 2414734860 (2.2 GiB)RX errors 0 dropped 0 overruns 0 frame 0TX packets 850234 bytes 175051446 (166.9 MiB)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0ens33:0: flags4163UP,BROADCAST,RUNNING,MULTICAST mtu 1500inet 192.168.3.33 netmask 255.255.255.0 broadcast 192.168.3.255ether 00:0c:29:4f:3c:68 txqueuelen 1000 (Ethernet)lo: flags73UP,LOOPBACK,RUNNING mtu 65536inet 127.0.0.1 netmask 255.0.0.0
[rootjeven network-scripts]#
五、测试网卡子接口 在其他服务器ping网卡子接口的IP地址进行测试连通性。 [rootserver001 ~]# ifconfig |grep ens33
[rootserver001 ~]# ifconfig |grep eth0
eth0: flags4163UP,BROADCAST,RUNNING,MULTICAST mtu 1500
[rootserver001 ~]# ifconfig |grep -C 5eth0
grep: 5eth0: invalid context length argument
[rootserver001 ~]# ifconfig |grep -C5 eth0RX packets 294460 bytes 34353514 (32.7 MiB)RX errors 0 dropped 0 overruns 0 frame 0TX packets 252317 bytes 47136565 (44.9 MiB)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0eth0: flags4163UP,BROADCAST,RUNNING,MULTICAST mtu 1500inet 192.168.3.158 netmask 255.255.255.0 broadcast 192.168.3.255inet6 fd58:bc95:d4fb:0:38ab:86a1:2ba0:f65d prefixlen 64 scopeid 0x0globalinet6 fe80::7b2d:77fb:1708:7edb prefixlen 64 scopeid 0x20linkether 52:54:00:a7:02:31 txqueuelen 1000 (Ethernet)RX packets 3760871 bytes 600897760 (573.0 MiB)
[rootserver001 ~]# ping 192.168.3.33 -c 12
PING 192.168.3.33 (192.168.3.33) 56(84) bytes of data.
64 bytes from 192.168.3.33: icmp_seq1 ttl64 time108 ms
64 bytes from 192.168.3.33: icmp_seq2 ttl64 time2.91 ms
64 bytes from 192.168.3.33: icmp_seq3 ttl64 time2.64 ms
64 bytes from 192.168.3.33: icmp_seq4 ttl64 time2.72 ms
64 bytes from 192.168.3.33: icmp_seq5 ttl64 time2.94 ms
64 bytes from 192.168.3.33: icmp_seq6 ttl64 time2.93 ms
64 bytes from 192.168.3.33: icmp_seq7 ttl64 time2.85 ms
64 bytes from 192.168.3.33: icmp_seq8 ttl64 time2.91 ms
64 bytes from 192.168.3.33: icmp_seq9 ttl64 time2.86 ms
64 bytes from 192.168.3.33: icmp_seq10 ttl64 time3.20 ms
64 bytes from 192.168.3.33: icmp_seq11 ttl64 time3.12 ms
64 bytes from 192.168.3.33: icmp_seq12 ttl64 time3.15 ms--- 192.168.3.33 ping statistics ---
12 packets transmitted, 12 received, 0% packet loss, time 11016ms
rtt min/avg/max/mdev 2.647/11.756/108.788/29.256 ms
