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cp /etc/snort/snort.conf /etc/snort/snort.conf.backup vim /etc/snort/snort.conf
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include $RULE_PATH/local.rules include $RULE_PATH/snort.rules include $RULE_PATH/community.rules
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cd /etc/snort/rules/
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vim custom.rules
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alert tcp any any -> any any (msg:"Possible SSH brute force attack"; flow:from_client,established; content:"SSH-"; threshold:type limit, track by_src, count 5, seconds 60; sid:10001; rev:1;)
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snort -A console -c /etc/snort/snort.conf -i eth0
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output alert_syslog_full output database: log, mysql, user=snort password=snort dbname=snort host=localhost output alert_fast: snort.alert config reference_file: reference.config config classification_file:classification.config config gen_file: gen-msg.map config sid_file: sid-msg.map
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output alert_full: alert.full output log_unified2: filename unified2.log, limit 128 output smtp: email@example.com
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