diff options
Diffstat (limited to 'extensions/libxt_string.man')
| -rw-r--r-- | extensions/libxt_string.man | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/extensions/libxt_string.man b/extensions/libxt_string.man index b6b271d1..adc9c180 100644 --- a/extensions/libxt_string.man +++ b/extensions/libxt_string.man @@ -16,3 +16,13 @@ Matches the given pattern. .TP [\fB!\fP] \fB\-\-hex\-string\fP \fIpattern\fP Matches the given pattern in hex notation. +.TP +Examples: +.IP +# The string pattern can be used for simple text characters. +.br +iptables \-A INPUT \-p tcp \-\-dport 80 \-m string \-\-algo bm \-\-string 'GET /index.html' \-j LOG +.IP +# The hex string pattern can be used for non-printable characters, like |0D 0A| or |0D0A|. +.br +iptables \-p udp \-\-dport 53 \-m string \-\-algo bm \-\-from 40 \-\-to 57 \-\-hex\-string '|03|www|09|netfilter|03|org|00|' |