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使用 MRTG 搭配 Net-SNMP 監測系統網路流量 - 修訂歷史
2024-03-28T22:14:23Z
本 Wiki 上此頁面的修訂歷史
MediaWiki 1.35.8
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JoeHorn:/* 前言 */
2006-12-30T06:25:20Z
<p><span dir="auto"><span class="autocomment">前言</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2006年12月30日 (六) 06:25 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l12" >行 12:</td>
<td colspan="2" class="diff-lineno">行 12:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==前言==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==前言==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>可能有許多人跟我一樣,負責維護的主機幾乎不在身邊,所有控管的動作幾乎都從遠端進行。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>可能有許多人跟我一樣,負責維護的主機幾乎不在身邊,所有控管的動作幾乎都從遠端進行。</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">~</del>在主機上安裝 MRTG 與 Net-SNMP 可以讓我們由網頁就可以監測主機的網路流量,增加主機的安全性,例如:主機被入侵後拿來當作攻擊的跳板。</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>在主機上安裝 MRTG 與 Net-SNMP 可以讓我們由網頁就可以監測主機的網路流量,增加主機的安全性,例如:主機被入侵後拿來當作攻擊的跳板。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==安裝==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==安裝==</div></td></tr>
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JoeHorn
https://wiki.joehorn.tw/index.php?title=%E4%BD%BF%E7%94%A8_MRTG_%E6%90%AD%E9%85%8D_Net-SNMP_%E7%9B%A3%E6%B8%AC%E7%B3%BB%E7%B5%B1%E7%B6%B2%E8%B7%AF%E6%B5%81%E9%87%8F&diff=1654&oldid=prev
JoeHorn:/* 設定 Net-SNMP */
2006-12-09T14:23:10Z
<p><span dir="auto"><span class="autocomment">設定 Net-SNMP</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2006年12月9日 (六) 14:23 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l28" >行 28:</td>
<td colspan="2" class="diff-lineno">行 28:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><pre>rocommunity [您想要的community名稱]</pre></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><pre>rocommunity [您想要的community名稱]</pre></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>修改 /etc/rc.conf <del class="diffchange diffchange-inline">,加入以下兩行:</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>修改 /etc/rc.conf <ins class="diffchange diffchange-inline">,加入以下這行:</ins></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><pre>snmpd_enable="YES<del class="diffchange diffchange-inline">"</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><pre>snmpd_enable="YES"</pre></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">snmpd_flags="-p /var/run/snmpd.pid</del>"</pre></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===啟動 Net-SNMP===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===啟動 Net-SNMP===</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>輸入以下指令來啟動 SNMP 監控 daemon :</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>輸入以下指令來啟動 SNMP 監控 daemon :</div></td></tr>
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JoeHorn
https://wiki.joehorn.tw/index.php?title=%E4%BD%BF%E7%94%A8_MRTG_%E6%90%AD%E9%85%8D_Net-SNMP_%E7%9B%A3%E6%B8%AC%E7%B3%BB%E7%B5%B1%E7%B6%B2%E8%B7%AF%E6%B5%81%E9%87%8F&diff=1515&oldid=prev
203.70.154.76:/* 修改設定檔 */
2006-09-04T07:32:28Z
<p><span dir="auto"><span class="autocomment">修改設定檔</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2006年9月4日 (一) 07:32 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l45" >行 45:</td>
<td colspan="2" class="diff-lineno">行 45:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* WorkDir 前面的 # 請拿掉,後面的絕對目錄指的是您的網頁放置目錄,請依照各主機之情況自行設定。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* WorkDir 前面的 # 請拿掉,後面的絕對目錄指的是您的網頁放置目錄,請依照各主機之情況自行設定。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">然後在這行下面:</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">請將這行前面的 # 拿掉:</ins></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><pre>Options[_]: growright, bits</pre></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><pre><ins class="diffchange diffchange-inline"># </ins>Options[_]: growright, bits</pre></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">加進這行:</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">並在下面加進這行:</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><pre>Language: big5</pre></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><pre>Language: big5</pre></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>也就是變成這樣:</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>也就是變成這樣:</div></td></tr>
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203.70.154.76
https://wiki.joehorn.tw/index.php?title=%E4%BD%BF%E7%94%A8_MRTG_%E6%90%AD%E9%85%8D_Net-SNMP_%E7%9B%A3%E6%B8%AC%E7%B3%BB%E7%B5%B1%E7%B6%B2%E8%B7%AF%E6%B5%81%E9%87%8F&diff=1493&oldid=prev
JoeHorn 於 2006年9月3日 (日) 19:01
2006-09-03T19:01:21Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2006年9月3日 (日) 19:01 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l6" >行 6:</td>
<td colspan="2" class="diff-lineno">行 6:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>附註:安裝步驟適用於 FreeBSD 平台,其它 UNIX-Like OS 可能有所不同。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>附註:安裝步驟適用於 FreeBSD 平台,其它 UNIX-Like OS 可能有所不同。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>----</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>----</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">使用軟體 :</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">使用軟體:</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [[http://people.ee.ethz.ch/~oetiker/webtools/mrtg/ MRTG]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [[http://people.ee.ethz.ch/~oetiker/webtools/mrtg/ MRTG]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [[http://net-snmp.sourceforge.net/ Net-SNMP]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [[http://net-snmp.sourceforge.net/ Net-SNMP]]</div></td></tr>
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JoeHorn
https://wiki.joehorn.tw/index.php?title=%E4%BD%BF%E7%94%A8_MRTG_%E6%90%AD%E9%85%8D_Net-SNMP_%E7%9B%A3%E6%B8%AC%E7%B3%BB%E7%B5%B1%E7%B6%B2%E8%B7%AF%E6%B5%81%E9%87%8F&diff=1492&oldid=prev
JoeHorn 於 2006年9月3日 (日) 19:00
2006-09-03T19:00:15Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2006年9月3日 (日) 19:00 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l4" >行 4:</td>
<td colspan="2" class="diff-lineno">行 4:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>授權:[[http://creativecommons.org/licenses/by-nc-sa/2.5/ CC授權:姓名標示-非商業性-相同方式分享 2.5]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>授權:[[http://creativecommons.org/licenses/by-nc-sa/2.5/ CC授權:姓名標示-非商業性-相同方式分享 2.5]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">附註:本文件適用於 </del>FreeBSD 平台,其它 UNIX-Like OS <del class="diffchange diffchange-inline">可能略有不同。</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">附註:安裝步驟適用於 </ins>FreeBSD 平台,其它 UNIX-Like OS <ins class="diffchange diffchange-inline">可能有所不同。</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>----</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>----</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>使用軟體 :</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>使用軟體 :</div></td></tr>
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JoeHorn
https://wiki.joehorn.tw/index.php?title=%E4%BD%BF%E7%94%A8_MRTG_%E6%90%AD%E9%85%8D_Net-SNMP_%E7%9B%A3%E6%B8%AC%E7%B3%BB%E7%B5%B1%E7%B6%B2%E8%B7%AF%E6%B5%81%E9%87%8F&diff=1484&oldid=prev
JoeHorn 於 2006年9月3日 (日) 18:39
2006-09-03T18:39:32Z
<p></p>
<p><b>新頁面</b></p><div>[[Category:FreeBSD相關文件|{{PAGENAME}}]]<br />
作者:Joe Horn( joehorn AT leobbs DOT net )<br />
<br />
授權:[[http://creativecommons.org/licenses/by-nc-sa/2.5/ CC授權:姓名標示-非商業性-相同方式分享 2.5]]<br />
<br />
附註:本文件適用於 FreeBSD 平台,其它 UNIX-Like OS 可能略有不同。<br />
----<br />
使用軟體 :<br />
* [[http://people.ee.ethz.ch/~oetiker/webtools/mrtg/ MRTG]]<br />
* [[http://net-snmp.sourceforge.net/ Net-SNMP]]<br />
----<br />
==前言==<br />
可能有許多人跟我一樣,負責維護的主機幾乎不在身邊,所有控管的動作幾乎都從遠端進行。<br />
~在主機上安裝 MRTG 與 Net-SNMP 可以讓我們由網頁就可以監測主機的網路流量,增加主機的安全性,例如:主機被入侵後拿來當作攻擊的跳板。<br />
<br />
==安裝==<br />
===使用 ports 來安裝 Net-SNMP===<br />
<pre># cd /usr/ports/net-mgmt/net-snmp<br />
# make install clean</pre><br />
<br />
===使用 ports 來安裝 MRTG===<br />
<pre># cd /usr/ports/net-mgmt/mrtg<br />
# make install clean</pre><br />
<br />
==設定與啟動 Net-SNMP==<br />
===設定 Net-SNMP===<br />
設定 community 名稱,請在 /usr/local/share/snmp 下面建立一個名為 snmpd.conf 的檔案,加入以下這行:<br />
<pre>rocommunity [您想要的community名稱]</pre><br />
<br />
修改 /etc/rc.conf ,加入以下兩行:<br />
<pre>snmpd_enable="YES"<br />
snmpd_flags="-p /var/run/snmpd.pid"</pre><br />
===啟動 Net-SNMP===<br />
輸入以下指令來啟動 SNMP 監控 daemon :<br />
<pre># /usr/local/etc/rc.d/snmpd.sh start</pre><br />
<br />
==設定 MRTG==<br />
===建立設定檔===<br />
用 cfgmaker 指令來抓取 SNMP 之設定資料:<br />
<pre># /usr/local/bin/cfgmaker [您剛剛設定的 community 名稱]@[欲監測之主機 IP/DN] > /usr/local/bin/mrtg.cfg</pre><br />
<br />
===修改設定檔===<br />
修改 mrtg.cfg 內的資料,用編輯器開啟 /usr/local/bin/mrtg.cfg 並衡量情況修改成以下資料:<br />
<pre>WorkDir: /usr/local/apache/htdocs/mrtg</pre><br />
* WorkDir 前面的 # 請拿掉,後面的絕對目錄指的是您的網頁放置目錄,請依照各主機之情況自行設定。<br />
<br />
然後在這行下面:<br />
<pre>Options[_]: growright, bits</pre><br />
加進這行:<br />
<pre>Language: big5</pre><br />
也就是變成這樣:<br />
<pre># to get bits instead of bytes and graphs growing to the right<br />
Options[_]: growright, bits<br />
Language: big5</pre><br />
<br />
===建立網頁與所需資料===<br />
複製網頁所需圖檔:<br />
<pre># cd /usr/local/share/mrtg<br />
# cp * [MRTG產生流量圖表之網頁所在目錄]</pre><br />
* 後面的那個目錄就是您在設定 WorkDir 所用的目錄,請先確定該目錄是否存在。<br />
<br />
用 indexmaker 初始化網頁:<br />
<pre># /usr/local/bin/indexmaker --title=xxx主機網路流量圖表 --rrdviewer='.' --output=[MRTG產生流量圖表之網頁絕對位置] /usr/local/bin/mrtg.cfg</pre><br />
* xxxx主機網路流量圖表為該網頁之標題,請自行衡量情況作修改。<br />
<br />
==測試 MRTG==<br />
測試 MRTG 是否工作正常:<br />
<pre># /usr/local/bin/mrtg /usr/local/bin/mrtg.cfg</pre><br />
重複執行三次後,打開瀏覽器觀看產生之網頁是否正常。<br />
<br />
==正式執行==<br />
MRTG 需要依靠定時的指令執行才會更新資料。<br />
<br />
請以讓系統每五分鐘執行以下指令: <br />
<pre>/usr/local/bin/mrtg /usr/local/bin/mrtg.cfg</pre><br />
* 例如:<br />
: <pre>*/5 * * * * /usr/local/bin/mrtg /usr/local/bin/mrtg.cfg > /dev/null 2>&1</pre></div>
JoeHorn