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linux_wiki:network_services_overview_ssh [2018/05/20 14:56] billdozor [User Based] |
linux_wiki:network_services_overview_ssh [2019/05/25 23:50] (current) |
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===== Host Based ===== | ===== Host Based ===== | ||
- | All are allowed | + | There are two methods to control access based on host: |
+ | * Firewall rich rule | ||
+ | * TCP Wrappers (hosts.allow, | ||
+ | |||
+ | \\ | ||
+ | ==== Host Based: Firewall ==== | ||
+ | |||
+ | Create a rich rule< | ||
+ | firewall-cmd --reload | ||
+ | </ | ||
+ | * Rejects ssh traffic from the source address 192.168.1.152 and logs the rejection. | ||
+ | |||
+ | \\ | ||
+ | ==== Host Based: TCP Wrappers ==== | ||
+ | |||
+ | The first match of the following actions is taken | ||
+ | * Matching entry in hosts.allow -> Host is allowed | ||
+ | * Matching entry in hosts.deny -> Host is denied | ||
+ | * No match of either -> Host is allowed | ||
\\ | \\ |