snort: add page (#10018)

pages/common/snort.md

@@ -0,0 +1,24 @@
+# snort
+
+> Open-source network intrusion detection system.
+> More information: <https://www.snort.org/#documents>.
+
+- Capture packets with verbose output:
+
+`sudo snort -v -i {{interface}}`
+
+- Capture packets and dump application layer data with verbose output:
+
+`sudo snort -vd -i {{interface}}`
+
+- Capture packets and display link layer packet headers with verbose output:
+
+`sudo snort -ve -i {{interface}}`
+
+- Capture packets and save them in the specified directory:
+
+`sudo snort -i {{interface}} -l {{path/to/directory}}`
+
+- Capture packets according to rules and save offending packets along with alerts:
+
+`sudo snort -i {{interface}} -c {{path/to/rules.conf}} -l {{path/to/directory}}`