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| 行21: |
行21: |
| | * [[Snortの設定 FreeBSD]] | | * [[Snortの設定 FreeBSD]] |
| | * [[Snortの設定関係のエラー]] | | * [[Snortの設定関係のエラー]] |
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| | == 使い方 == | | == 使い方 == |
| | * [[Snortのシグネチャの作成方法]] | | * [[Snortのシグネチャの作成方法]] |
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| − | === Snort が起動しない場合 ===
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| − | 自分の使用しているネットワークの[[IPアドレス]]を設定する必要があります。
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| − | <syntaxhighlight lang="bash">
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| − | % sudo /usr/local/etc/rc.d/snort onestart
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| − | Starting snort.
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| − | /usr/local/etc/rc.d/snort: WARNING: failed to start snort
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| − | % sudo /usr/local/bin/snort -c /usr/local/etc/snort/snort.conf
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| − | Running in IDS mode
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| − |
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| − | --== Initializing Snort ==--
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| − | Initializing Output Plugins!
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| − | Initializing Preprocessors!
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| − | Initializing Plug-ins!
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| − | Parsing Rules file "/usr/local/etc/snort/snort.conf"
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| − | ERROR: /usr/local/etc/snort/snort.conf(45) Failed to parse the IP address: [YOU_NEED_TO_SET_HOME_NET_IN_snort.conf].
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| − | Fatal Error, Quitting..
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| − | </syntaxhighlight>
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| − |
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| − | === ルールがないと動かない ===
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| − |
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| − | ERROR: /usr/local/etc/snort/./rules/local.rules(0) Unable to open rules file
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| − | <syntaxhighlight lang="bash">
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| − | sudo touch "/usr/local/etc/snort/./rules/local.rules"
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| − | </syntaxhighlight>
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| − |
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| − | <syntaxhighlight lang="bash">
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| − | % sudo local/etc/rbin/snort -c /usr/local/etc/snort/snort.conf
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| − | Running in IDS mode
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| − |
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| − | --== Initializing Snort ==--
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| − | Initializing Output Plugins!
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| − | Initializing Preprocessors!
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| − | Initializing Plug-ins!
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| − | Parsing Rules file "/usr/local/etc/snort/snort.conf"
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| − | PortVar 'HTTP_PORTS' defined : [ 80:90 311 383 591 593 631 901 1220 1414 1741
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| − | 1830 2301 2381 2809 3037 3057 3128 3443 3702 4343 4848 5250 6080 6988 7000:7001
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| − | 7144:7145 7510 7777 7779 8000 8008 8014 8028 8080 8085 8088 8090 8118 8123
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| − | 8180:8181 8222 8243 8280 8300 8500 8800 8888 8899 9000 9060 9080 9090:9091 9443
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| − | 9999:10000 11371 34443:34444 41080 50000 50002 55555 ]
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| − | PortVar 'SHELLCODE_PORTS' defined : [ 0:79 81:65535 ]
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| − | PortVar 'ORACLE_PORTS' defined : [ 1024:65535 ]
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| − | PortVar 'SSH_PORTS' defined : [ 22 ]
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| − | PortVar 'FTP_PORTS' defined : [ 21 2100 3535 ]
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| − | PortVar 'SIP_PORTS' defined : [ 5060:5061 5600 ]
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| − | PortVar 'FILE_DATA_PORTS' defined : [ 80:90 110 143 311 383 591 593 631 901
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| − | 1220 1414 1741 1830 2301 2381 2809 3037 3057 3128 3443 3702 4343 4848 5250 6080
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| − | 6988 7000:7001 7144:7145 7510 7777 7779 8000 8008 8014 8028 8080 8085 8088 8090
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| − | 8118 8123 8180:8181 8222 8243 8280 8300 8500 8800 8888 8899 9000 9060 9080
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| − | 9090:9091 9443 9999:10000 11371 34443:34444 41080 50000 50002 55555 ]
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| − | PortVar 'GTP_PORTS' defined : [ 2123 2152 3386 ]
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| − | Detection:
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| − | Search-Method = AC-Full-Q
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| − | Split Any/Any group = enabled
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| − | Search-Method-Optimizations = enabled
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| − | Maximum pattern length = 20
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| − | ERROR: /usr/local/etc/snort/./rules/local.rules(0) Unable to open rules file
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| − | "/usr/local/etc/snort/./rules/local.rules": No such file or directory.
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| − |
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| − | Fatal Error, Quitting..
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| − | </syntaxhighlight>
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| − |
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| − | === usbus0 でエラーになる ===
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| − |
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| − | インターフェースを指定してない場合、自動的にインターフェースが選択されて、動作しませんでした。
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| − | [[FreeBSD]] の場合は、 rc.conf にsnort_interfaceでインターフェースを指定できます。
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| − | <syntaxhighlight lang="bash">
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| − | [ Port Based Pattern Matching Memory ]
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| − | [ Number of patterns truncated to 20 bytes: 0 ]
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| − | pcap DAQ configured to passive.
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| − | Acquiring network traffic from "usbus0".
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| − | Reload thread starting...
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| − | Reload thread started, thread 0x28805500 (49289)
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| − | ERROR: Cannot decode data link type 186
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| − | Fatal Error, Quitting..
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| − | </syntaxhighlight>
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| − |
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| − | snort コマンド には、-i でインターフェースが指定できます。
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| − | <syntaxhighlight lang="bash">
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| − | sudo /usr/local/bin/snort -c /usr/local/etc/snort/snort.conf -i em0
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| − | </syntaxhighlight>
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| − |
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| | == 関連項目 == | | == 関連項目 == |
| | {{snort}} | | {{snort}} |