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 | 1 brMu Apr 12, 2021 iptables ？ arptables ？ 网卡配置错误？ |
 | 2 kevinonepiece OP |
| 3 kevinonepiece OP 重启网卡，服务器不行 |
| 4 OP @brMu |
 | 5 dier Apr 12, 2021 ifconfig 看看 IP 信息 cat /etc/sysconfig/network-scripts/ifcfg-eth0 或 eth3 看看配置信息 |
 | 6 Rwing Apr 12, 2021 CentOS 6 End of life November 30, 2020 |
 | 7 tomwen Apr 12, 2021 cat /etc/sysconfig/network-scripts/ifcfg-eth* 看一下 |
| 8 kevinonepiece OP |
 | 9 cpstar Apr 13, 2021 iptables 丢弃了 ICMP 包吧 |
 | 10 iscurry Apr 13, 2021 # 1. vim /etc/sysctl.conf # 2. 增加一行 net.ipv4.icmp_echo_ignore_all=1 # 0 是禁止，1 是允许 |
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