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Linux下111端口有何作用

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[LV.Master]伴坛终老

发表于 2021/2/4 05:21 | 显示全部楼层 |阅读模式 |Google Chrome 88.0.4324.104|Windows 10
天涯海角搜一下: 百度 谷歌 360 搜狗 有道 雅虎 必应 即刻
Dear Customer,

Recent network security audits have detected some issues on your instances.  Please review the following reports and help us to ensure the security of our network:



== Portmapper servers ==
Portmapper is a service usually used with NFS.  When this is not properly firewalled, it can be abused to conduct DDOS attacks.  We recommend that all portmapper services be behind a firewall, and restricted to only IPs that need to contact them.

For Linux machines, please add firewall rules to block port 111 on both UDP and TCP:

iptables -I INPUT 1 -m tcp -p tcp --dport 111 -j DROP
iptables -I INPUT 1 -m udp -p udp --dport 111 -j DROP

Please see https://blog.cloudflare.com/reflections-on-reflections/ for more information on reflection attacks.

The following IPs have been detected running open portmapper servers:
0.0.0.0:111 - at 2021-02-02 10:23:09



If you believe these reports to be false positives, please let us know.

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[LV.10]以坛为家III

发表于 2021/2/5 01:56 | 显示全部楼层 |Google Chrome 88.0.4324.146|Windows 10
[发帖际遇]: 不可名 乐于助人,奖励 8 贡献. 幸运榜 / 衰神榜
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