advanced·20 min·مدفوع
Egress Filter on the Records Server
An outbound filter permits the wrong department and blocks the right one.
السيناريو
Halstead Legal restricts which departments may reach the records server, applied where traffic leaves the firewall towards that server rather than where it enters. A policy rewrite named the wrong department: the paralegal team has lost its access, and the contractor network - which should never have had any - now reaches records freely. Correct the filter so only paralegals get through.
أهداف التعلّم
- acl
- nftables
- egress filtering
- troubleshooting
الطوبولوجيا والإعداد
تحتوي هذه البيئة على 4 جهازًا (3 Hosts, 1 Router). تقوم بإعداد واستكشاف أخطاء المهارات المذكورة أعلاه وإصلاحها.