d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Document the net.inet.ip.portrange.reserved{high,low} sysctl knobs

Browse Source 
added in sys/netinet/in_pcb.c 1.120.

Prodded by:	ru
This commit is contained in:
cjc 2003-02-21 21:09:35 +00:00
parent e71043be7e
commit b8c7e26405
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
share/man/man4/ip.4
View File

@ -202,6 +202,24 @@ This is adjustable through the sysctl setting:
and
.Sy net.inet.ip.portrange.lowlast .
.El
.Pp
The range of privileged ports which only may be opened by
root-owned processes may be modified by the
.Sy net.inet.ip.portrange.reservedlow
and
.Sy net.inet.ip.portrange.reservedhigh
sysctl settings.
The values default to the traditional range,
0 through
.Dv IPPORT_RESERVED - 1
(0 through 1023), respectively.
Note that these settings do not affect and are not accounted for in the
use or calculation of the other
.Sy net.inet.ip.portrange
values above.
Changing these values departs from Unix tradition and has security
concequences that the administrator should carefully evaluate before
modifying these settings.
.Ss "Multicast Options"
.Pp
.Tn IP