OracleLinux7.1增加网卡及IP配置

由于需要给虚拟机(oracle linux 7.1)增加网卡并设置IP操作,在增加网卡后执行ifconfig命令可以看到增加的网卡信息，但没有生成网卡配置文件

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[root@jytest1 ~]# ifconfig
ens34: flags=4163  mtu 1500
        ether 00:50:56:a0:7e:4c  txqueuelen 1000  (Ethernet)
        RX packets 14332  bytes 1177864 (1.1 MiB)
        RX errors 0  dropped 25  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens160: flags=4163  mtu 1500
        inet 10.138.130.171  netmask 255.255.255.0  broadcast 10.138.130.255
        inet6 fe80::250:56ff:feb1:260  prefixlen 64  scopeid 0x20
        ether 00:50:56:b1:02:60  txqueuelen 1000  (Ethernet)
        RX packets 14524  bytes 1203727 (1.1 MiB)
        RX errors 0  dropped 11  overruns 0  frame 0
        TX packets 349  bytes 31569 (30.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10
        loop  txqueuelen 0  (Local Loopback)
        RX packets 1152  bytes 89096 (87.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1152  bytes 89096 (87.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:88:ce:47  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6  bytes 1172 (1.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@jytest1 ~]# cd /etc/sysconfig/network-scripts
[root@jytest1 network-scripts]# ls -lrt
total 232
-rwxr-xr-x. 1 root root  1876 Nov  6  2014 ifup-TeamPort
-rwxr-xr-x. 1 root root  1755 Nov  6  2014 ifup-Team
-rwxr-xr-x. 1 root root  1556 Nov  6  2014 ifdown-TeamPort
-rwxr-xr-x. 1 root root  1599 Nov  6  2014 ifdown-Team
-rw-r--r--. 1 root root 26134 Jan 15  2015 network-functions-ipv6
-rw-r--r--. 1 root root 15316 Jan 15  2015 network-functions
-rwxr-xr-x. 1 root root  4623 Jan 15  2015 init.ipv6-global
-rwxr-xr-x. 1 root root  1740 Jan 15  2015 ifup-wireless
-rwxr-xr-x. 1 root root  2682 Jan 15  2015 ifup-tunnel
-rwxr-xr-x. 1 root root  3263 Jan 15  2015 ifup-sit
-rwxr-xr-x. 1 root root  1925 Jan 15  2015 ifup-routes
-rwxr-xr-x. 1 root root  4154 Jan 15  2015 ifup-ppp
-rwxr-xr-x. 1 root root  2609 Jan 15  2015 ifup-post
-rwxr-xr-x. 1 root root  1043 Jan 15  2015 ifup-plusb
-rwxr-xr-x. 1 root root   642 Jan 15  2015 ifup-plip
-rwxr-xr-x. 1 root root 10430 Jan 15  2015 ifup-ipv6
-rwxr-xr-x. 1 root root 12039 Jan 15  2015 ifup-ippp
-rwxr-xr-x. 1 root root 11502 Jan 15  2015 ifup-eth
-rwxr-xr-x. 1 root root   859 Jan 15  2015 ifup-bnep
-rwxr-xr-x. 1 root root 12616 Jan 15  2015 ifup-aliases
-rwxr-xr-x. 1 root root  1462 Jan 15  2015 ifdown-tunnel
-rwxr-xr-x. 1 root root  1444 Jan 15  2015 ifdown-sit
-rwxr-xr-x. 1 root root   837 Jan 15  2015 ifdown-routes
-rwxr-xr-x. 1 root root  1068 Jan 15  2015 ifdown-ppp
-rwxr-xr-x. 1 root root  1642 Jan 15  2015 ifdown-post
-rwxr-xr-x. 1 root root  4201 Jan 15  2015 ifdown-ipv6
-rwxr-xr-x. 1 root root   781 Jan 15  2015 ifdown-ippp
-rwxr-xr-x. 1 root root  5817 Jan 15  2015 ifdown-eth
-rwxr-xr-x. 1 root root   627 Jan 15  2015 ifdown-bnep
-rw-r--r--. 1 root root   254 Jan 15  2015 ifcfg-lo
-rwxr-xr-x. 1 root root 10145 Mar  6  2015 ifup-ib
-rwxr-xr-x. 1 root root  6196 Mar  6  2015 ifdown-ib
lrwxrwxrwx. 1 root root    24 Nov  5 10:11 ifdown -> ../../../usr/sbin/ifdown
lrwxrwxrwx. 1 root root    11 Nov  5 10:11 ifdown-isdn -> ifdown-ippp
lrwxrwxrwx. 1 root root    22 Nov  5 10:11 ifup -> ../../../usr/sbin/ifup
lrwxrwxrwx. 1 root root     9 Nov  5 10:11 ifup-isdn -> ifup-ippp
-rw-r--r--. 1 root root   358 Nov  5 12:01 ifcfg-ens160

可以看到并没有生成网卡配置文件ifcfg-ens34,而之前在创建虚拟机时增加的网卡ens160是有相应的配置文件ifcfg-ens160。在oracle linux 7.1中使用nmtui来设置网络，nmtui 属于curses-based text user interface（文本用户界面)， 类似Linux7以前的setup工具

[root@jytest1 ~]# nmtui

使用nmtui设置完后可以看到生成了网卡ens34的配置文件ifcfg-ens34

 [root@jytest1 network-scripts]# ls -lrt
total 236
-rwxr-xr-x. 1 root root  1876 Nov  6  2014 ifup-TeamPort
-rwxr-xr-x. 1 root root  1755 Nov  6  2014 ifup-Team
-rwxr-xr-x. 1 root root  1556 Nov  6  2014 ifdown-TeamPort
-rwxr-xr-x. 1 root root  1599 Nov  6  2014 ifdown-Team
-rw-r--r--. 1 root root 26134 Jan 15  2015 network-functions-ipv6
-rw-r--r--. 1 root root 15316 Jan 15  2015 network-functions
-rwxr-xr-x. 1 root root  4623 Jan 15  2015 init.ipv6-global
-rwxr-xr-x. 1 root root  1740 Jan 15  2015 ifup-wireless
-rwxr-xr-x. 1 root root  2682 Jan 15  2015 ifup-tunnel
-rwxr-xr-x. 1 root root  3263 Jan 15  2015 ifup-sit
-rwxr-xr-x. 1 root root  1925 Jan 15  2015 ifup-routes
-rwxr-xr-x. 1 root root  4154 Jan 15  2015 ifup-ppp
-rwxr-xr-x. 1 root root  2609 Jan 15  2015 ifup-post
-rwxr-xr-x. 1 root root  1043 Jan 15  2015 ifup-plusb
-rwxr-xr-x. 1 root root   642 Jan 15  2015 ifup-plip
-rwxr-xr-x. 1 root root 10430 Jan 15  2015 ifup-ipv6
-rwxr-xr-x. 1 root root 12039 Jan 15  2015 ifup-ippp
-rwxr-xr-x. 1 root root 11502 Jan 15  2015 ifup-eth
-rwxr-xr-x. 1 root root   859 Jan 15  2015 ifup-bnep
-rwxr-xr-x. 1 root root 12616 Jan 15  2015 ifup-aliases
-rwxr-xr-x. 1 root root  1462 Jan 15  2015 ifdown-tunnel
-rwxr-xr-x. 1 root root  1444 Jan 15  2015 ifdown-sit
-rwxr-xr-x. 1 root root   837 Jan 15  2015 ifdown-routes
-rwxr-xr-x. 1 root root  1068 Jan 15  2015 ifdown-ppp
-rwxr-xr-x. 1 root root  1642 Jan 15  2015 ifdown-post
-rwxr-xr-x. 1 root root  4201 Jan 15  2015 ifdown-ipv6
-rwxr-xr-x. 1 root root   781 Jan 15  2015 ifdown-ippp
-rwxr-xr-x. 1 root root  5817 Jan 15  2015 ifdown-eth
-rwxr-xr-x. 1 root root   627 Jan 15  2015 ifdown-bnep
-rw-r--r--. 1 root root   254 Jan 15  2015 ifcfg-lo
-rwxr-xr-x. 1 root root 10145 Mar  6  2015 ifup-ib
-rwxr-xr-x. 1 root root  6196 Mar  6  2015 ifdown-ib
lrwxrwxrwx. 1 root root    24 Nov  5 10:11 ifdown -> ../../../usr/sbin/ifdown
lrwxrwxrwx. 1 root root    11 Nov  5 10:11 ifdown-isdn -> ifdown-ippp
lrwxrwxrwx. 1 root root    22 Nov  5 10:11 ifup -> ../../../usr/sbin/ifup
lrwxrwxrwx. 1 root root     9 Nov  5 10:11 ifup-isdn -> ifup-ippp
-rw-r--r--. 1 root root   346 Mar 16 12:36 ifcfg-ens160
-rw-r--r--. 1 root root   181 Mar 16 12:42 ifcfg-ens34

编辑配置文件

[root@jytest1 network-scripts]# vi ifcfg-ens34
TYPE=Ethernet
BOOTPROTO=none
IPADDR=88.88.88.1
NETMASK=255.255.255.0
PREFIX=32
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=no
NAME=ens34
UUID=f0e4fffc-668c-4b3d-b1cf-ab2b0122dd7d
DEVICE=ens34
ONBOOT=yes

重启网络

[root@jytest1 network-scripts]# systemctl restart network
[root@jytest1 network-scripts]# ifconfig
ens34: flags=4163  mtu 1500
        inet 88.88.88.1  netmask 255.255.255.255  broadcast 88.88.88.1
        inet6 fe80::250:56ff:fea0:7e4c  prefixlen 64  scopeid 0x20
        ether 00:50:56:a0:7e:4c  txqueuelen 1000  (Ethernet)
        RX packets 24804  bytes 2064784 (1.9 MiB)
        RX errors 0  dropped 25  overruns 0  frame 0
        TX packets 57  bytes 8254 (8.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens160: flags=4163  mtu 1500
        inet 10.138.130.171  netmask 255.255.255.0  broadcast 10.138.130.255
        inet6 fe80::250:56ff:feb1:260  prefixlen 64  scopeid 0x20
        ether 00:50:56:b1:02:60  txqueuelen 1000  (Ethernet)
        RX packets 25331  bytes 2120003 (2.0 MiB)
        RX errors 0  dropped 11  overruns 0  frame 0
        TX packets 767  bytes 84120 (82.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10
        loop  txqueuelen 0  (Local Loopback)
        RX packets 1480  bytes 113808 (111.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1480  bytes 113808 (111.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:88:ce:47  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6  bytes 1172 (1.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

 [root@jytest1 network-scripts]# ping jytest1-priv
PING jytest1-priv (88.88.88.1) 56(84) bytes of data.
64 bytes from jytest1-priv (88.88.88.1): icmp_seq=1 ttl=64 time=0.419 ms
64 bytes from jytest1-priv (88.88.88.1): icmp_seq=2 ttl=64 time=0.227 ms
^C
--- jytest1-priv ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.227/0.323/0.419/0.096 ms

配置完成