Linux59 SSH配置前瞻 JumpServer雙網卡ping通

在這里插入圖片描述

為什么Ping這個IP地址Ping得通
本地址
[root@localhost network-scripts]# cat ifcfg-ens33
iTYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
DEVICE=ens33
ONBOOT=no
IPADDR=192.168.235.4
NETMASK=255.255.255.0
GATEWAY=192.168.235.2
DNS1=114.114.114.114
[root@localhost network-scripts]# service network restart
Restarting network (via systemctl): [ 確定 ]
[root@localhost network-scripts]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
[root@localhost network-scripts]# ifup ens33
連接已成功激活（D-Bus 活動路徑：/org/freedesktop/NetworkManager/ActiveConnection/6）
[root@localhost network-scripts]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.235.2 0.0.0.0 UG 100 0 0 ens33
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
192.168.235.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33
[root@localhost network-scripts]# ping 192.168.235.2
PING 192.168.235.2 (192.168.235.2) 56(84) bytes of data.
64 bytes from 192.168.235.2: icmp_seq=1 ttl=128 time=0.646 ms
64 bytes from 192.168.235.2: icmp_seq=2 ttl=128 time=0.232 ms
64 bytes from 192.168.235.2: icmp_seq=3 ttl=128 time=0.210 ms
^C
— 192.168.235.2 ping statistics —
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.210/0.362/0.646/0.201 ms
[root@localhost network-scripts]# cat ifcfg-ens33
iTYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
DEVICE=ens33
ONBOOT=no
IPADDR=192.168.235.4
NETMASK=255.255.255.0
GATEWAY=192.168.235.2
DNS1=114.114.114.114
[root@localhost network-scripts]# ping www.baidu.com
PING www.baidu.com (223.109.82.212) 56(84) bytes of data.
64 bytes from 223.109.82.212 (223.109.82.212): icmp_seq=1 ttl=128 time=16.5 ms
64 bytes from 223.109.82.212 (223.109.82.212): icmp_seq=2 ttl=128 time=15.6 ms
64 bytes from 223.109.82.212 (223.109.82.212): icmp_seq=3 ttl=128 time=16.6 ms
64 bytes from 223.109.82.212 (223.109.82.212): icmp_seq=4 ttl=128 time=15.6 ms
^C
— www.baidu.com ping statistics —
4 packets transmitted, 4 received, 0% packet loss, time 12034ms
rtt min/avg/max/mdev = 15.616/16.114/16.618/0.496 ms
[root@localhost network-scripts]# vim ifcfg-ens33
[root@localhost network-scripts]# cat ifcfg-ens33
iTYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
DEVICE=ens33
ONBOOT=no
IPADDR=192.168.235.3
NETMASK=255.255.255.0
GATEWAY=192.168.235.254
DNS1=114.114.114.114
[root@localhost network-scripts]# service network restart
Restarting network (via systemctl): [ 確定 ]
[root@localhost network-scripts]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
[root@localhost network-scripts]# ifup ens33
連接已成功激活（D-Bus 活動路徑：/org/freedesktop/NetworkManager/ActiveConnection/7）
[root@localhost network-scripts]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.235.254 0.0.0.0 UG 100 0 0 ens33
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
192.168.235.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33
[root@localhost network-scripts]# ping 192.168.235.254
PING 192.168.235.254 (192.168.235.254) 56(84) bytes of data.
^C
— 192.168.235.254 ping statistics —
26 packets transmitted, 0 received, 100% packet loss, time 24999ms 為啥我網關換成192.168.254就Ping不通了在這里插入圖片描述

應該就是這里了默認網關是192.168.235.2
修改成192.168.234.254試一下

通了
在配虛擬機靜態地址時若ping不通外界地址需看下虛擬地址編輯器內默認網關是多少靜態地址網關需與默認網關一致
OK 雙網卡雙卡雙待該虛擬機能Ping通外網
在準備配個RealServer就準備休息了在這里插入圖片描述
realserver

今日源碼

參考

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