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authorPhil Sutter <phil@nwl.cc>2022-04-16 14:21:51 +0200
committerPhil Sutter <phil@nwl.cc>2022-05-11 12:18:24 +0200
commit404f304d00e69dcdfdb83537e8c11b8c253e415e (patch)
tree1d6c0e569627c492e14559fc045181ac5b8ce388
parent0a53825946892bb22605fa2d9381ffa46f73f5c2 (diff)
man: *NAT: Review --random* option descriptions
Stating the option again in the first (single?) sentence is pointless. Get rid of that initial half-sentence in MASQUERADE options and unify the texts a bit. Signed-off-by: Phil Sutter <phil@nwl.cc>
-rw-r--r--extensions/libxt_DNAT.man4
-rw-r--r--extensions/libxt_MASQUERADE.man10
-rw-r--r--extensions/libxt_REDIRECT.man4
-rw-r--r--extensions/libxt_SNAT.man8
4 files changed, 6 insertions, 20 deletions
diff --git a/extensions/libxt_DNAT.man b/extensions/libxt_DNAT.man
index 12d334af..af9a3f06 100644
--- a/extensions/libxt_DNAT.man
+++ b/extensions/libxt_DNAT.man
@@ -25,9 +25,7 @@ For a single port or \fIbaseport\fP, a service name as listed in
\fB/etc/services\fP may be used.
.TP
\fB\-\-random\fP
-If option
-\fB\-\-random\fP
-is used then port mapping will be randomized (kernel >= 2.6.22).
+Randomize source port mapping (kernel >= 2.6.22).
.TP
\fB\-\-persistent\fP
Gives a client the same source-/destination-address for each connection.
diff --git a/extensions/libxt_MASQUERADE.man b/extensions/libxt_MASQUERADE.man
index 7746f473..26d91ddb 100644
--- a/extensions/libxt_MASQUERADE.man
+++ b/extensions/libxt_MASQUERADE.man
@@ -20,16 +20,10 @@ if the rule also specifies one of the following protocols:
\fBtcp\fP, \fBudp\fP, \fBdccp\fP or \fBsctp\fP.
.TP
\fB\-\-random\fP
-Randomize source port mapping
-If option
-\fB\-\-random\fP
-is used then port mapping will be randomized (kernel >= 2.6.21).
+Randomize source port mapping (kernel >= 2.6.21).
Since kernel 5.0, \fB\-\-random\fP is identical to \fB\-\-random-fully\fP.
.TP
\fB\-\-random-fully\fP
-Full randomize source port mapping
-If option
-\fB\-\-random-fully\fP
-is used then port mapping will be fully randomized (kernel >= 3.13).
+Fully randomize source port mapping (kernel >= 3.13).
.TP
IPv6 support available since Linux kernels >= 3.7.
diff --git a/extensions/libxt_REDIRECT.man b/extensions/libxt_REDIRECT.man
index 10305597..1cbdb9ba 100644
--- a/extensions/libxt_REDIRECT.man
+++ b/extensions/libxt_REDIRECT.man
@@ -19,8 +19,6 @@ if the rule also specifies one of the following protocols:
For a single port, a service name as listed in \fB/etc/services\fP may be used.
.TP
\fB\-\-random\fP
-If option
-\fB\-\-random\fP
-is used then port mapping will be randomized (kernel >= 2.6.22).
+Randomize source port mapping (kernel >= 2.6.22).
.TP
IPv6 support available starting Linux kernels >= 3.7.
diff --git a/extensions/libxt_SNAT.man b/extensions/libxt_SNAT.man
index 08766447..80a698a6 100644
--- a/extensions/libxt_SNAT.man
+++ b/extensions/libxt_SNAT.man
@@ -21,14 +21,10 @@ will be mapped to ports below 1024, and other ports will be mapped to
1024 or above. Where possible, no port alteration will occur.
.TP
\fB\-\-random\fP
-If option
-\fB\-\-random\fP
-is used then port mapping will be randomized through a hash-based algorithm (kernel >= 2.6.21).
+Randomize source port mapping through a hash-based algorithm (kernel >= 2.6.21).
.TP
\fB\-\-random-fully\fP
-If option
-\fB\-\-random-fully\fP
-is used then port mapping will be fully randomized through a PRNG (kernel >= 3.14).
+Fully randomize source port mapping through a PRNG (kernel >= 3.14).
.TP
\fB\-\-persistent\fP
Gives a client the same source-/destination-address for each connection.