Centos 6:向现有NIC提出NIC原因问题

Question

我有一台用于Nagios的CentOS 6机器。这是一台戴尔PowerEdge服务器，没有保修，有两个车载NIC和两个多卡。它已经运行Nagios几个月了，运行良好。2在船上运行，而第二对是不活动。

最近，我拥有了一个来自eesensors.com的水/温度/光传感器，它可以插入网卡并与Nagios兼容。我编译了Nagios插件，将其连接到第二个NIC中的一个，根据似乎合适的配置'ifcfg-p3p1‘，并运行'ifup-p3p1’。

此时，“ifconfig”显示了新端口的启动和数据包通过。同样发生的情况是，原来的端口似乎停止工作。Apache没有响应性，Nagios报告每个测试的错误。我仍然能够通过SSH与服务器进行通信。要解决这个问题，我必须重新启动网络，网络启动eth1，而不是p3p1。

所以-

• 我在增加港口方面做错了什么？
• 为什么即使SSH工作，我的HTTPD，etc服务也会停止响应？我会想，如果NIC下降了，那就需要SSH了。

ifcfg-p3p1:    
    DEVICE=p3p1   
    HWADDR=00:0E:0C:xx:xx:xx    
    ONBOOT=no    
    BOOTPROTO=static    
    IPADDR=192.168.0.1   
    NETMASK=255.255.255.0   
    GATEWAY=192.168.0.2    

ifcfg-eth1:    
    DEVICE="eth1"   
    HWADDR="00:14:22:xx:xx:xx"   
    NM_CONTROLLED="yes"  
    ONBOOT="yes"  
    IPADDR=10.127.24.21  
    GATEWAY=10.127.24.1  
    NETMASK=10.127.254.0  
    NETWORK=10.127.24.0  
    TYPE=ETHERNET  


[root@orange network-scripts]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
   valid_lft forever preferred_lft forever

2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link/ether 00:14:22:13:b7:f3 brd ff:ff:ff:ff:ff:ff

3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:14:22:13:b7:f4 brd ff:ff:ff:ff:ff:ff
inet 10.127.24.21/23 brd 10.127.25.255 scope global eth1
inet6 fe80::214:22ff:fe13:b7f4/64 scope link
   valid_lft forever preferred_lft forever

4: p3p1: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link/ether 00:0e:0c:71:82:ae brd ff:ff:ff:ff:ff:ff

5: p3p2: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link/ether 00:0e:0c:71:82:af brd ff:ff:ff:ff:ff:ff

[root@orange network-scripts]# ip route
10.127.24.0/23 dev eth1  proto kernel  scope link  src 10.127.24.21
169.254.0.0/16 dev eth1  scope link  metric 1003
default via 10.127.24.1 dev eth1

[root@orange network-scripts]# ifup p3p1

[root@orange network-scripts]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
   valid_lft forever preferred_lft forever

2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link/ether 00:14:22:13:b7:f3 brd ff:ff:ff:ff:ff:ff

3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:14:22:13:b7:f4 brd ff:ff:ff:ff:ff:ff
inet 10.127.24.21/23 brd 10.127.25.255 scope global eth1
inet6 fe80::214:22ff:fe13:b7f4/64 scope link
   valid_lft forever preferred_lft forever

4: p3p1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0e:0c:71:82:ae brd ff:ff:ff:ff:ff:ff
inet 192.168.0.1/24 brd 192.168.0.255 scope global p3p1
inet6 fe80::20e:cff:fe71:82ae/64 scope link
   valid_lft forever preferred_lft forever

5: p3p2: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link/ether 00:0e:0c:71:82:af brd ff:ff:ff:ff:ff:ff

[root@orange network-scripts]# ip route
192.168.0.0/24 dev p3p1  proto kernel  scope link  src 192.168.0.1
10.127.24.0/23 dev eth1  proto kernel  scope link  src 10.127.24.21
169.254.0.0/16 dev eth1  scope link  metric 1003
169.254.0.0/16 dev p3p1  scope link  metric 1004
default via 192.168.0.2 dev p3p1

Answer 1

移除这一行：

GATEWAY=192.168.0.2    

那里没有入口！

如果您指定的IP地址实际上不是网关，则任何需要使用网关的服务都会中断。