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Linux59 SSH配置前瞻 JumpServer双网卡ping通

news 2025/5/10 6:20:01

在这里插入图片描述

为什么Ping这个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): [ 确定 ]
[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
连接已成功激活（D-Bus 活动路径：/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): [ 确定 ]
[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
连接已成功激活（D-Bus 活动路径：/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 为啥我网关换成192.168.254就Ping不通了在这里插入图片描述

应该就是这里了默认网关是192.168.235.2
修改成192.168.234.254试一下

通了
在配虚拟机静态地址时若ping不通外界地址需看下虚拟地址编辑器内默认网关是多少静态地址网关需与默认网关一致
OK 双网卡双卡双待该虚拟机能Ping通外网
在准备配个RealServer就准备休息了在这里插入图片描述
realserver

今日源码

参考