path: root/doc/primary-expression.txt
diff options
authorFernando Fernandez Mancera <>2019-03-27 11:37:59 +0100
committerPablo Neira Ayuso <>2019-04-08 23:46:50 +0200
commit894ae9a519a46d15f5051cc7b1a6311d6f92231e (patch)
treeea482d9c3d16cdaf6ee0a4cfbbc94294c50ae38d /doc/primary-expression.txt
parent12adf747a3f627241339eccb477273d5385a8bb9 (diff)
doc: add osf version option to man page
Signed-off-by: Fernando Fernandez Mancera <> Signed-off-by: Pablo Neira Ayuso <>
Diffstat (limited to 'doc/primary-expression.txt')
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/primary-expression.txt b/doc/primary-expression.txt
index d819b24c..a62ed00e 100644
--- a/doc/primary-expression.txt
+++ b/doc/primary-expression.txt
@@ -219,6 +219,8 @@ and others) from packets with the SYN bit set.
Do TTL checks on the packet to determine the operating system.|
+Do OS version checks on the packet.|
Name of the OS signature to match. All signatures can be found at pf.os file.
Use "unknown" for OS signatures that the expression could not detect.|