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share/man/man5/rc.conf.5
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.Dq Li YES | .Dq Li YES | ||||
will cause the kernel to ignore TCP frames that have both | will cause the kernel to ignore TCP frames that have both | ||||
the SYN and FIN flags set. | the SYN and FIN flags set. | ||||
This prevents OS fingerprinting, but may | This prevents OS fingerprinting, but may | ||||
break some legitimate applications. | break some legitimate applications. | ||||
.It Va icmp_drop_redirect | .It Va icmp_drop_redirect | ||||
.Pq Vt bool | .Pq Vt bool | ||||
Set to | Set to | ||||
.Dq Li NO | .Dq Li AUTO | ||||
by default. | by default. This setting will take the value from | ||||
.Va routed_enable | |||||
instead, because redirect processing may cause perfomance issues | |||||
for large routing tables. | |||||
Setting to | Setting to | ||||
.Dq Li YES | .Dq Li YES | ||||
will cause the kernel to ignore ICMP REDIRECT packets. | will cause the kernel to ignore ICMP REDIRECT packets. | ||||
Setting to | |||||
.Dq Li NO | |||||
will cause the kernel to process ICMP REDIRECT packets. | |||||
Refer to | Refer to | ||||
.Xr icmp 4 | .Xr icmp 4 | ||||
for more information. | for more information. | ||||
.It Va icmp_log_redirect | .It Va icmp_log_redirect | ||||
.Pq Vt bool | .Pq Vt bool | ||||
Set to | Set to | ||||
.Dq Li NO | .Dq Li NO | ||||
by default. | by default. | ||||
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