ipfw.8 (01fc1ee969cff7b66cf2a239e8cbc1caa526bee0) | ipfw.8 (e71057d8d08fdb6564e17803e73f73efdb688067) |
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1.Dd November 16, 1994 2.Dt IPFW 8 SMM 3.Os FreeBSD 4.Sh NAME 5.Nm ipfw 6.Nd controlling utility for IP firewall / IP accounting facilities. 7.Sh SYNOPSIS 8.Nm --- 117 unchanged lines hidden (view full) --- 126.It Nm bidirectional 127Log packets matching entry and also those going in the 128opposite direction (from 129.Dq dst 130to 131.Dq src ) . 132.El 133.Pp | 1.Dd November 16, 1994 2.Dt IPFW 8 SMM 3.Os FreeBSD 4.Sh NAME 5.Nm ipfw 6.Nd controlling utility for IP firewall / IP accounting facilities. 7.Sh SYNOPSIS 8.Nm --- 117 unchanged lines hidden (view full) --- 126.It Nm bidirectional 127Log packets matching entry and also those going in the 128opposite direction (from 129.Dq dst 130to 131.Dq src ) . 132.El 133.Pp |
134Each keyword will be recognized by the shortest unambigious prefix. | 134Each keyword will be recognized by the shortest unambiguous prefix. |
135.Pp | 135.Pp |
136Recognised | 136Recognized |
137.Em protocols 138are: 139.Bl -hang -offset flag -width 123456 140.It Nm all 141Matches any IP packet. 142.It Nm icmp 143Matches ICMP packets. 144.It Nm tcp --- 94 unchanged lines hidden (view full) --- 239entire accounting chain. 240.Pp 241The 242.Em p[olicy] 243command can be given 244.Pp 245.Dl a[ccept] | d[eny] 246.Pp | 137.Em protocols 138are: 139.Bl -hang -offset flag -width 123456 140.It Nm all 141Matches any IP packet. 142.It Nm icmp 143Matches ICMP packets. 144.It Nm tcp --- 94 unchanged lines hidden (view full) --- 239entire accounting chain. 240.Pp 241The 242.Em p[olicy] 243command can be given 244.Pp 245.Dl a[ccept] | d[eny] 246.Pp |
247to set default policy as denial/acceptance. Without an angument, the | 247to set default policy as denial/acceptance. Without an argument, the |
248current policy status is displayed. 249.Sh EXAMPLES 250This command adds an entry which denies all tcp packets from 251.Em hacker.evil.org 252to the telnet port of 253.Em wolf.tambov.su 254from being forwarded by the host: 255.Pp --- 63 unchanged lines hidden --- | 248current policy status is displayed. 249.Sh EXAMPLES 250This command adds an entry which denies all tcp packets from 251.Em hacker.evil.org 252to the telnet port of 253.Em wolf.tambov.su 254from being forwarded by the host: 255.Pp --- 63 unchanged lines hidden --- |