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	<title>IT блог - полезные заметки. &#187; Несортированное</title>
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	<link>http://itblog.su</link>
	<description>IT blog - авторский блог о Linux, windows, php, mysql.</description>
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		<item>
		<title>Linux KVM and USB devices</title>
		<link>http://itblog.su/linux-kvm-and-usb-devices.html</link>
		<comments>http://itblog.su/linux-kvm-and-usb-devices.html#comments</comments>
		<pubDate>Wed, 28 Dec 2011 21:09:08 +0000</pubDate>
		<dc:creator>Артур Шакиров</dc:creator>
				<category><![CDATA[Несортированное]]></category>

		<guid isPermaLink="false">http://itblog.su/?p=595</guid>
		<description><![CDATA[Возникла необходимость прокинуть в KVM-ную виртуалку USB девайсы, токен и флешку. &#91;root@office ~&#93;# lsusb Bus 002 Device 003: ID 0930:6545 Toshiba Corp. Kingston DataTraveler 102 Flash Drive Bus 006 Device 003: ID 23a0:0002 &#91;root@office ~&#93;# virsh virsh # list --all ID Имя Статус ---------------------------------- - WindowsXP выключен &#160; virsh # edit WindowsXP в блок devices [...]]]></description>
			<content:encoded><![CDATA[<p>Возникла необходимость прокинуть в KVM-ную виртуалку USB девайсы, токен и флешку.</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="br0">&#91;</span>root<span class="sy0">@</span>office ~<span class="br0">&#93;</span><span class="co0"># lsusb</span>
Bus 002 Device 003: ID 0930:<span class="nu0">6545</span> Toshiba Corp. Kingston DataTraveler <span class="nu0">102</span> Flash Drive 
Bus 006 Device 003: ID 23a0:0002</pre></div></div></div></div></div></div></div>




<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="br0">&#91;</span>root<span class="sy0">@</span>office ~<span class="br0">&#93;</span><span class="co0"># virsh</span>
virsh <span class="co0"># list  --all</span>
 ID Имя               Статус
<span class="re5">----------------------------------</span>
  - WindowsXP             выключен
&nbsp;
virsh <span class="co0"># edit WindowsXP</span></pre></div></div></div></div></div></div></div>


<p>в блок devices добавляем:</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="xml"><pre class="de1">    <span class="sc3"><span class="re1">&lt;hostdev</span> <span class="re0">mode</span>=<span class="st0">'subsystem'</span> <span class="re0">type</span>=<span class="st0">'usb'</span> <span class="re0">managed</span>=<span class="st0">'no'</span><span class="re2">&gt;</span></span>
      <span class="sc3"><span class="re1">&lt;source<span class="re2">&gt;</span></span></span>
        <span class="sc3"><span class="re1">&lt;vendor</span> <span class="re0">id</span>=<span class="st0">'0x23a0'</span><span class="re2">/&gt;</span></span>
        <span class="sc3"><span class="re1">&lt;product</span> <span class="re0">id</span>=<span class="st0">'0x0002'</span><span class="re2">/&gt;</span></span>
      <span class="sc3"><span class="re1">&lt;/source<span class="re2">&gt;</span></span></span>
    <span class="sc3"><span class="re1">&lt;/hostdev<span class="re2">&gt;</span></span></span>
    <span class="sc3"><span class="re1">&lt;hostdev</span> <span class="re0">mode</span>=<span class="st0">'subsystem'</span> <span class="re0">type</span>=<span class="st0">'usb'</span> <span class="re0">managed</span>=<span class="st0">'no'</span><span class="re2">&gt;</span></span>
      <span class="sc3"><span class="re1">&lt;source<span class="re2">&gt;</span></span></span>
        <span class="sc3"><span class="re1">&lt;vendor</span> <span class="re0">id</span>=<span class="st0">'0x0930'</span><span class="re2">/&gt;</span></span>
        <span class="sc3"><span class="re1">&lt;product</span> <span class="re0">id</span>=<span class="st0">'0x6545'</span><span class="re2">/&gt;</span></span>
      <span class="sc3"><span class="re1">&lt;/source<span class="re2">&gt;</span></span></span>
    <span class="sc3"><span class="re1">&lt;/hostdev<span class="re2">&gt;</span></span></span></pre></div></div></div></div></div></div></div>


<p>На Centos 6 это к сожалению работать не будет, только один девайс можно прокинуть. По тому что qemu-kvm-0.12. </p>
]]></content:encoded>
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		</item>
		<item>
		<title>yum thru proxy</title>
		<link>http://itblog.su/yum-thru-proxy.html</link>
		<comments>http://itblog.su/yum-thru-proxy.html#comments</comments>
		<pubDate>Tue, 15 Nov 2011 18:02:09 +0000</pubDate>
		<dc:creator>Артур Шакиров</dc:creator>
				<category><![CDATA[Несортированное]]></category>

		<guid isPermaLink="false">http://itblog.su/?p=586</guid>
		<description><![CDATA[В сети есть ip-pbx, по политике безопасности трафик с него/на него не должен маршрутизироваться за пределы сегмента локальной сети. Но он должен обновляться, ему нужен http доступ наружу. Соотвественно Yum должен ходить через прокси (в том же сегменте сети). По ленивой привычке идем в гугл и читаем тонны бреда про то как правильно экспортировать переменные [...]]]></description>
			<content:encoded><![CDATA[<p>В сети есть ip-pbx, по политике безопасности трафик с него/на него не должен маршрутизироваться за пределы сегмента локальной сети. Но он должен обновляться, ему нужен http доступ наружу. Соотвественно Yum должен ходить через прокси (в том же сегменте сети). По ленивой привычке идем в гугл и читаем тонны бреда про то как правильно экспортировать переменные среды. </p>
<p>Ну чтож за любовь такая у людей, велосипеды изобретать. man yum.conf:</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1">              proxy url to the proxy server that <span class="kw2">yum</span> should use.
&nbsp;
              proxy_username username to use <span class="kw1">for</span> proxy
&nbsp;
              proxy_password password <span class="kw1">for</span> this proxy</pre></div></div></div></div></div></div></div>


<p>Прокся в данном случае без авторизации, соответственно добавляю в конфиг /etc/yum.conf</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1">proxy = http:<span class="sy0">//</span>192.168.3.1:<span class="nu0">3128</span><span class="sy0">/</span></pre></div></div></div></div></div></div></div>


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		</item>
		<item>
		<title>Adaptec 5405 and others on Centos 5</title>
		<link>http://itblog.su/adaptec-5405-and-others-on-centos-5.html</link>
		<comments>http://itblog.su/adaptec-5405-and-others-on-centos-5.html#comments</comments>
		<pubDate>Wed, 29 Jun 2011 14:20:32 +0000</pubDate>
		<dc:creator>Артур Шакиров</dc:creator>
				<category><![CDATA[Несортированное]]></category>
		<category><![CDATA[Adaptec 5405]]></category>
		<category><![CDATA[CentOS]]></category>
		<category><![CDATA[RAID]]></category>

		<guid isPermaLink="false">http://itblog.su/?p=558</guid>
		<description><![CDATA[Есть такой популярный контроллер Adaptec 5405, мы его ставим в сервера в больших количествах, соотвественно нужно мониторить состояние массивов на серверах. Для этого есть nagios и zabbix, а чтобы наши мониторинги могли узнавать статус массивов используем утилиту arcconf от производителя Adaptec. Покажу на примере CentOS 5.6 x86_64 установку arcconf http://download.adaptec.com/raid/storage_manager/asm_linux_x64_v7_00_18781.tgz tar zxf asm_linux_x64_v7_00_18781.tgz mv cmdline/arcconf [...]]]></description>
			<content:encoded><![CDATA[<p>Есть такой популярный контроллер Adaptec 5405, мы его ставим в сервера в больших количествах, соотвественно нужно мониторить состояние массивов на серверах. </p>
<p>Для этого есть nagios и zabbix, а чтобы наши мониторинги могли узнавать статус массивов используем утилиту arcconf от производителя Adaptec.</p>
<p>Покажу на примере CentOS 5.6 x86_64 установку arcconf</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1">http:<span class="sy0">//</span>download.adaptec.com<span class="sy0">/</span>raid<span class="sy0">/</span>storage_manager<span class="sy0">/</span>asm_linux_x64_v7_00_18781.tgz
<span class="kw2">tar</span> zxf asm_linux_x64_v7_00_18781.tgz 
<span class="kw2">mv</span> cmdline<span class="sy0">/</span>arcconf <span class="sy0">/</span>bin<span class="sy0">/</span></pre></div></div></div></div></div></div></div>


<p>Если вам нужен Adaptec Storage Manager agent то можете поставить пакетом всё что поставляет Adaptec</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"> rpm <span class="re5">-Uvh</span> manager<span class="sy0">/</span>StorMan-<span class="nu0">7.00</span>.x86_64.rpm</pre></div></div></div></div></div></div></div>


<p>Ну и проверить не забудьте:</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1">arcconf GETCONFIG <span class="nu0">1</span> AD
Controllers found: <span class="nu0">1</span>
<span class="re5">----------------------------------------------------------------------</span>
Controller information
<span class="re5">----------------------------------------------------------------------</span>
   Controller Status                        : Optimal
   Channel description                      : SAS<span class="sy0">/</span>SATA
   Controller Model                         : Adaptec <span class="nu0">5405</span>
   Controller Serial Number                 : 0D29116C7A3
   Physical Slot                            : <span class="nu0">1</span>
   Temperature                              : <span class="nu0">67</span> C<span class="sy0">/</span> <span class="nu0">152</span> F <span class="br0">&#40;</span>Normal<span class="br0">&#41;</span>
   Installed memory                         : <span class="nu0">256</span> MB
   Copyback                                 : Disabled
   Background consistency check             : Disabled
   Automatic Failover                       : Enabled
   Global task priority                     : High
   Performance Mode                         : Default<span class="sy0">/</span>Dynamic
   Stayawake period                         : Disabled
   Spinup limit internal drives             : <span class="nu0">0</span>
   Spinup limit external drives             : <span class="nu0">0</span>
   Defunct disk drive count                 : <span class="nu0">0</span>
   Logical devices<span class="sy0">/</span>Failed<span class="sy0">/</span>Degraded          : <span class="nu0">1</span><span class="sy0">/</span><span class="nu0">0</span><span class="sy0">/</span><span class="nu0">0</span>
   SSDs assigned to MaxIQ Cache pool        : <span class="nu0">0</span>
   Maximum SSDs allowed <span class="kw1">in</span> MaxIQ Cache pool : <span class="nu0">8</span>
   MaxIQ Read Cache Pool Size               : <span class="nu0">0.000</span> GB
   MaxIQ cache fetch rate                   : <span class="nu0">0</span>
   MaxIQ Cache Read, Write Balance Factor   : <span class="nu0">3</span>,<span class="nu0">1</span>
   NCQ status                               : Enabled
   Statistics data collection mode          : Enabled
   <span class="re5">--------------------------------------------------------</span>
   Controller Version Information
   <span class="re5">--------------------------------------------------------</span>
   BIOS                                     : <span class="nu0">5.2</span>-<span class="nu0">0</span> <span class="br0">&#40;</span><span class="nu0">17899</span><span class="br0">&#41;</span>
   Firmware                                 : <span class="nu0">5.2</span>-<span class="nu0">0</span> <span class="br0">&#40;</span><span class="nu0">17899</span><span class="br0">&#41;</span>
   Driver                                   : <span class="nu0">1.1</span>-<span class="nu0">5</span> <span class="br0">&#40;</span><span class="nu0">24702</span><span class="br0">&#41;</span>
   Boot Flash                               : <span class="nu0">5.2</span>-<span class="nu0">0</span> <span class="br0">&#40;</span><span class="nu0">17899</span><span class="br0">&#41;</span>
   <span class="re5">--------------------------------------------------------</span>
   Controller Battery Information
   <span class="re5">--------------------------------------------------------</span>
   Status                                   : Not Installed</pre></div></div></div></div></div></div></div>


<p>версии под другие платформы и ОС доступны на <a href="http://www.adaptec.com/en-us/downloads/storage_manager/sm/productid=sas-5405&#038;dn=adaptec+raid+5405.html">официальном сайте</a></p>
<p>Данная инструкция также верна для:<br />
Adaptec RAID 2045<br />
Adaptec RAID 2405<br />
Adaptec RAID 2405Q<br />
Adaptec RAID 2805<br />
Adaptec RAID 5085<br />
Adaptec RAID 51245<br />
Adaptec RAID 51645<br />
Adaptec RAID 52445<br />
Adaptec RAID 5405<br />
Adaptec RAID 5405Z<br />
Adaptec RAID 5445<br />
Adaptec RAID 5445Z<br />
Adaptec RAID 5805<br />
Adaptec RAID 5805Q<br />
Adaptec RAID 5805Z<br />
Adaptec RAID 5805ZQ</p>
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		<item>
		<title>Remove UTF8 BOM under linux</title>
		<link>http://itblog.su/remove-utf8-bom-under-linux.html</link>
		<comments>http://itblog.su/remove-utf8-bom-under-linux.html#comments</comments>
		<pubDate>Wed, 15 Jun 2011 17:33:11 +0000</pubDate>
		<dc:creator>Артур Шакиров</dc:creator>
				<category><![CDATA[Несортированное]]></category>

		<guid isPermaLink="false">http://itblog.su/?p=559</guid>
		<description><![CDATA[После переноса файлов с фряхи на linux простым rsync в текстовых файлах появился UTF-8 BOM, это такой маркер типа UTF (легко гуглится кому интересно). По факту это в начало вайла добавляется HEX символы: EF BB BF. Проблема выражается в том что кирилицу в файлах кривит и косит. Переходим в каталог который надо чинить и правим: [...]]]></description>
			<content:encoded><![CDATA[<p>После переноса файлов с фряхи на linux простым rsync в текстовых файлах появился UTF-8 BOM, это такой маркер типа UTF (легко гуглится кому интересно). По факту это в начало вайла добавляется HEX символы: EF BB BF. Проблема выражается в том что кирилицу в файлах кривит и косит.</p>
<p>Переходим в каталог который надо чинить и правим:</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="kw2">find</span> . <span class="re5">-type</span> f \<span class="br0">&#40;</span> <span class="re5">-name</span> <span class="st_h">'*.css'</span> <span class="re5">-o</span> <span class="re5">-name</span> <span class="st_h">'*.js'</span> <span class="re5">-o</span> <span class="re5">-name</span> <span class="st_h">'*.txt'</span> <span class="re5">-o</span> <span class="re5">-name</span> <span class="st_h">'*.php'</span> <span class="re5">-o</span> <span class="re5">-name</span> <span class="st_h">'*.htm'</span> <span class="re5">-o</span> <span class="re5">-name</span> <span class="st_h">'*.html'</span> \<span class="br0">&#41;</span> <span class="re5">-print0</span> <span class="sy0">|</span> <span class="kw2">xargs</span> <span class="re5">-0</span> <span class="kw2">grep</span> <span class="re5">-l</span> <span class="sy0">`</span><span class="kw3">printf</span> <span class="st_h">'^\xef\xbb\xbf'</span><span class="sy0">`</span> <span class="sy0">|</span> <span class="kw2">xargs</span> <span class="kw2">sed</span> <span class="re5">-i</span> <span class="st_h">'1 s/^\xef\xbb\xbf//'</span></pre></div></div></div></div></div></div></div>


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		<item>
		<title>Booting ms dos via PXE to update bios</title>
		<link>http://itblog.su/booting-ms-dos-via-pxe-to-update-bios.html</link>
		<comments>http://itblog.su/booting-ms-dos-via-pxe-to-update-bios.html#comments</comments>
		<pubDate>Tue, 31 May 2011 18:28:28 +0000</pubDate>
		<dc:creator>Артур Шакиров</dc:creator>
				<category><![CDATA[Несортированное]]></category>

		<guid isPermaLink="false">http://itblog.su/?p=550</guid>
		<description><![CDATA[Для обновления BIOS на сервре как правило нужно загрузиться с дискеты с MS DOS и запустить утилиту обновления, в современном мире не так просто найти FDD, да и дискету сходу не удалось найти. Но в it инфраструктуре как правило уже развернут PXE сервер для обслуживания серверов или устновки операционной системы, собственно им и воспользуемся. apt-get [...]]]></description>
			<content:encoded><![CDATA[<p>Для обновления BIOS на сервре как правило нужно загрузиться с дискеты с MS DOS  и запустить утилиту обновления, в современном мире не так просто найти FDD, да и дискету сходу не удалось найти.</p>
<p>Но в it инфраструктуре как правило уже развернут PXE сервер для обслуживания серверов или устновки операционной системы, собственно им и воспользуемся.</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="kw2">apt-get install</span> dosfstools <span class="kw2">gettext</span> build-essential
<span class="kw2">wget</span> <span class="st0">&quot;http://downloads.sourceforge.net/project/ms-sys/ms-sys%20stable/2.2.0/ms-sys-2.2.0.tar.gz?use_mirror=citylan&quot;</span> <span class="re5">-O</span> ms-sys-2.2.0.tar.gz
<span class="kw2">tar</span> zxf ms-sys-2.2.0.tar.gz <span class="sy0">&amp;&amp;</span> <span class="kw3">cd</span> ms-sys-2.2.0<span class="sy0">/</span>
<span class="kw2">make</span>
<span class="kw2">cp</span> bin<span class="sy0">/</span>ms-sys <span class="sy0">/</span>usr<span class="sy0">/</span>bin<span class="sy0">/</span>
<span class="kw3">cd</span> .. <span class="sy0">&amp;&amp;</span> <span class="kw2">rm</span> <span class="re5">-rf</span> ms-sys-2.2.0<span class="sy0">*</span></pre></div></div></div></div></div></div></div>




<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="kw2">dd</span> <span class="re2">if</span>=<span class="sy0">/</span>dev<span class="sy0">/</span>zero <span class="re2">of</span>=floppy.img <span class="re2">bs</span>=<span class="nu0">1024</span> <span class="re2">count</span>=<span class="nu0">20000</span>
mkdosfs floppy.img
ms-sys <span class="re5">-1</span> <span class="re5">-f</span> floppy.img</pre></div></div></div></div></div></div></div>




<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="kw2">mount</span> <span class="re5">-o</span> loop floppy.img <span class="sy0">/</span>mnt<span class="sy0">/</span>
<span class="kw2">wget</span> http:<span class="sy0">//</span>itblog.su<span class="sy0">/</span>downloads<span class="sy0">/</span>W98SE_R.img
<span class="kw2">mount</span> <span class="re5">-o</span> loop W98SE_R.img <span class="sy0">/</span>tmp<span class="sy0">/</span>dos
<span class="kw2">cp</span> <span class="sy0">/</span>tmp<span class="sy0">/</span>dos<span class="sy0">/*</span> <span class="sy0">/</span>mnt<span class="sy0">/</span> 
<span class="kw2">umount</span> <span class="sy0">/</span>tmp<span class="sy0">/</span>dos <span class="sy0">&amp;&amp;</span> <span class="kw2">rm</span> <span class="re5">-rf</span> <span class="sy0">/</span>tmp<span class="sy0">/</span>dos</pre></div></div></div></div></div></div></div>




<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="kw2">mv</span> X8DTU_204.ima <span class="sy0">/</span>mnt<span class="sy0">/</span>
<span class="kw2">wget</span> ftp:<span class="sy0">//</span>ftp.supermicro.com<span class="sy0">/</span>utility<span class="sy0">/</span>IPMI<span class="sy0">%</span>20FW<span class="sy0">%</span>20flash<span class="sy0">%</span>20tools<span class="sy0">/</span>AMI<span class="sy0">/</span>DOS<span class="sy0">%</span><span class="nu0">202.4</span>.zip
<span class="kw2">unzip</span>  DOS\ <span class="nu0">2.4</span>.zip 
<span class="kw2">mv</span> DOS<span class="sy0">/</span>yafukcs.exe <span class="sy0">/</span>mnt<span class="sy0">/</span>
<span class="kw2">rm</span> <span class="re5">-rf</span> DOS<span class="sy0">*</span>
<span class="kw2">umount</span> <span class="sy0">/</span>mnt</pre></div></div></div></div></div></div></div>




<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="kw2">mv</span> floppy.img <span class="sy0">/</span>tftpboot<span class="sy0">/</span>
&nbsp;
<span class="kw2">cat</span> <span class="sy0">&gt;&gt;</span> <span class="sy0">/</span>tftpboot<span class="sy0">/</span>pxelinux.cfg<span class="sy0">/</span>default <span class="co2">&lt;&lt;EOF
label dos
    menu label dos
   kernel memdisk
   append initrd=floppy.img
EOF</span></pre></div></div></div></div></div></div></div>


]]></content:encoded>
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		</item>
		<item>
		<title>H-Sphere account move error &#171;Suspended due to resources integrity&#187;</title>
		<link>http://itblog.su/h-sphere-account-move-error-suspended-due-to-resources-integrity.html</link>
		<comments>http://itblog.su/h-sphere-account-move-error-suspended-due-to-resources-integrity.html#comments</comments>
		<pubDate>Wed, 04 May 2011 08:15:34 +0000</pubDate>
		<dc:creator>Артур Шакиров</dc:creator>
				<category><![CDATA[Несортированное]]></category>

		<guid isPermaLink="false">http://itblog.su/?p=531</guid>
		<description><![CDATA[При переносе аккаунта с сервера на сервер из H-shphere возможна ошибка &#171;Suspended due to resources integrity&#187; Заходим на сервер cp рутом и выполняем: grep &#34;duplicate key violates unique&#34; /var/log/hsphere/hsphere.log.1 -B3 получим что-то вроде: 2011-05-04 11:15:34,614 &#91;transfer&#93; DEBUG cron.TransferCron - getResourcesInMoveInfo&#40;&#41;: got and checking 1608767_7 is a HostDependentResource - true 2011-05-04 11:15:34,614 &#91;transfer&#93; DEBUG cron.TransferCron - [...]]]></description>
			<content:encoded><![CDATA[<p>При переносе аккаунта с сервера на сервер из H-shphere возможна ошибка &#171;Suspended due to resources integrity&#187;</p>
<p>Заходим на сервер cp рутом и выполняем:</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="kw2">grep</span> <span class="st0">&quot;duplicate key violates unique&quot;</span> <span class="sy0">/</span>var<span class="sy0">/</span>log<span class="sy0">/</span>hsphere<span class="sy0">/</span>hsphere.log.1  <span class="re5">-B3</span></pre></div></div></div></div></div></div></div>


<p>получим что-то вроде:</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="nu0">2011</span>-05-04 <span class="nu0">11</span>:<span class="nu0">15</span>:<span class="nu0">34</span>,<span class="nu0">614</span> <span class="br0">&#91;</span>transfer<span class="br0">&#93;</span> DEBUG cron.TransferCron - getResourcesInMoveInfo<span class="br0">&#40;</span><span class="br0">&#41;</span>: got and checking <span class="nu0">1608767</span>_7 is a HostDependentResource -  <span class="kw2">true</span>
<span class="nu0">2011</span>-05-04 <span class="nu0">11</span>:<span class="nu0">15</span>:<span class="nu0">34</span>,<span class="nu0">614</span> <span class="br0">&#91;</span>transfer<span class="br0">&#93;</span> DEBUG cron.TransferCron - getResourcesInMoveInfo<span class="br0">&#40;</span><span class="br0">&#41;</span>: <span class="re2">host_id</span>=<span class="nu0">75</span>
<span class="nu0">2011</span>-05-04 <span class="nu0">11</span>:<span class="nu0">15</span>:<span class="nu0">34</span>,<span class="nu0">623</span> <span class="br0">&#91;</span>transfer<span class="br0">&#93;</span> ERROR cron.TransferCron - Getting resources info <span class="kw1">for</span> process <span class="nu0">1510</span>
org.postgresql.util.PSQLException: ERROR: duplicate key violates unique constraint <span class="st0">&quot;resources_in_move_pkey&quot;</span>
<span class="re5">--</span>
<span class="nu0">2011</span>-05-04 <span class="nu0">11</span>:<span class="nu0">15</span>:<span class="nu0">35</span>,<span class="nu0">195</span> <span class="br0">&#91;</span>transfer<span class="br0">&#93;</span> DEBUG cron.TransferCron - getResourcesInMoveInfo<span class="br0">&#40;</span><span class="br0">&#41;</span>: got and checking <span class="nu0">1505546</span>_7 is a HostDependentResource -  <span class="kw2">true</span>
<span class="nu0">2011</span>-05-04 <span class="nu0">11</span>:<span class="nu0">15</span>:<span class="nu0">35</span>,<span class="nu0">195</span> <span class="br0">&#91;</span>transfer<span class="br0">&#93;</span> DEBUG cron.TransferCron - getResourcesInMoveInfo<span class="br0">&#40;</span><span class="br0">&#41;</span>: <span class="re2">host_id</span>=<span class="nu0">75</span>
<span class="nu0">2011</span>-05-04 <span class="nu0">11</span>:<span class="nu0">15</span>:<span class="nu0">35</span>,<span class="nu0">197</span> <span class="br0">&#91;</span>transfer<span class="br0">&#93;</span> ERROR cron.TransferCron - Getting resources info <span class="kw1">for</span> process <span class="nu0">1519</span>
org.postgresql.util.PSQLException: ERROR: duplicate key violates unique constraint <span class="st0">&quot;resources_in_move_pkey&quot;</span></pre></div></div></div></div></div></div></div>


<p>Теперь переходим к системено PostgreSQL базе:</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="kw2">sudo</span> <span class="kw2">su</span> <span class="re5">-l</span> cpanel <span class="re5">-c</span> <span class="st_h">'psql hsphere'</span></pre></div></div></div></div></div></div></div>


<p>и находим ресурсы взятые из лога выше:</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="sql"><pre class="de1">hsphere<span class="sy0">=</span># <span class="kw1">SELECT</span> <span class="sy0">*</span> <span class="kw1">FROM</span> resources_in_move <span class="kw1">WHERE</span> rid <span class="sy0">=</span> <span class="nu0">1608767</span>;
 tp_id <span class="sy0">|</span>   rid   <span class="sy0">|</span> rtype <span class="sy0">|</span>          created           <span class="sy0">|</span> deleted <span class="sy0">|</span> job_id <span class="sy0">|</span> tt_id <span class="sy0">|</span> ord 
<span class="co1">-------+---------+-------+----------------------------+---------+--------+-------+-----</span>
  <span class="nu0">1188</span> <span class="sy0">|</span> <span class="nu0">1608767</span> <span class="sy0">|</span>     <span class="nu0">7</span> <span class="sy0">|</span> <span class="nu0">2010</span><span class="sy0">-</span>02<span class="sy0">-</span>08 06:08:<span class="nu0">08.191</span><span class="sy0">+</span>03 <span class="sy0">|</span>         <span class="sy0">|</span>   <span class="nu0">1149</span> <span class="sy0">|</span>       <span class="sy0">|</span>   <span class="nu0">0</span>
<span class="br0">&#40;</span><span class="nu0">1</span> <span class="kw1">ROW</span><span class="br0">&#41;</span>
&nbsp;
hsphere<span class="sy0">=</span># <span class="kw1">SELECT</span> <span class="sy0">*</span> <span class="kw1">FROM</span> resources_in_move <span class="kw1">WHERE</span> rid <span class="sy0">=</span> <span class="nu0">1505546</span>;
 tp_id <span class="sy0">|</span>   rid   <span class="sy0">|</span> rtype <span class="sy0">|</span>          created           <span class="sy0">|</span>          deleted           <span class="sy0">|</span> job_id <span class="sy0">|</span> tt_id <span class="sy0">|</span> ord 
<span class="co1">-------+---------+-------+----------------------------+----------------------------+--------+-------+-----</span>
  <span class="nu0">1271</span> <span class="sy0">|</span> <span class="nu0">1505546</span> <span class="sy0">|</span>     <span class="nu0">7</span> <span class="sy0">|</span> <span class="nu0">2010</span><span class="sy0">-</span>02<span class="sy0">-</span>08 07:<span class="nu0">38</span>:<span class="nu0">30.028</span><span class="sy0">+</span>03 <span class="sy0">|</span> <span class="nu0">2010</span><span class="sy0">-</span>02<span class="sy0">-</span>09 08:<span class="nu0">18</span>:<span class="nu0">42.944</span><span class="sy0">+</span>03 <span class="sy0">|</span>   <span class="nu0">1225</span> <span class="sy0">|</span>       <span class="sy0">|</span>   <span class="nu0">0</span>
<span class="br0">&#40;</span><span class="nu0">1</span> <span class="kw1">ROW</span><span class="br0">&#41;</span></pre></div></div></div></div></div></div></div>


<p>удаляем найденные из таблицы resources_in_move:</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="sql"><pre class="de1">hsphere<span class="sy0">=</span># <span class="kw1">BEGIN</span>;
<span class="kw1">BEGIN</span>
hsphere<span class="sy0">=</span># <span class="kw1">DELETE</span> <span class="kw1">FROM</span> resources_in_move <span class="kw1">WHERE</span> tp_id <span class="sy0">=</span> <span class="nu0">1188</span>;
<span class="kw1">DELETE</span> <span class="nu0">168</span>
hsphere<span class="sy0">=</span># <span class="kw1">DELETE</span> <span class="kw1">FROM</span> resources_in_move <span class="kw1">WHERE</span> tp_id <span class="sy0">=</span> <span class="nu0">1271</span>;
<span class="kw1">DELETE</span> <span class="nu0">41</span>
hsphere<span class="sy0">=</span># COMMIT;
COMMIT
hsphere<span class="sy0">=</span># \q</pre></div></div></div></div></div></div></div>


<p>И снова начинаем перенос аккаунтов, теперь всё пройдет нормально.</p>
]]></content:encoded>
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		</item>
		<item>
		<title>iptables and ftp in passive mode</title>
		<link>http://itblog.su/iptables-and-ftp-in-passive-mode.html</link>
		<comments>http://itblog.su/iptables-and-ftp-in-passive-mode.html#comments</comments>
		<pubDate>Fri, 18 Mar 2011 09:30:01 +0000</pubDate>
		<dc:creator>Артур Шакиров</dc:creator>
				<category><![CDATA[Несортированное]]></category>

		<guid isPermaLink="false">http://itblog.su/?p=519</guid>
		<description><![CDATA[Если на сервере открыть только 21 порт то ftp будет доступен только в active mode, но браузеры по умолчанию ломятся всегда в passive. Для того чтобы отрыть passive mode нужно подгрузить модуль ip_conntrack_ftp. modprobe ip_conntrack_ftp iptables -I RH-Firewall-1-INPUT 1 -p tcp -m state --state NEW -m tcp --dport 20 -j ACCEPT iptables -I RH-Firewall-1-INPUT 1 [...]]]></description>
			<content:encoded><![CDATA[<p>Если на сервере открыть только 21 порт то ftp будет доступен только в active mode, но браузеры по умолчанию ломятся всегда в passive. Для того чтобы отрыть passive mode нужно подгрузить модуль ip_conntrack_ftp.</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1">modprobe ip_conntrack_ftp
iptables <span class="re5">-I</span> RH-Firewall-<span class="nu0">1</span>-INPUT <span class="nu0">1</span> <span class="re5">-p</span> tcp <span class="re5">-m</span> state <span class="re5">--state</span> NEW <span class="re5">-m</span> tcp <span class="re5">--dport</span> <span class="nu0">20</span> <span class="re5">-j</span> ACCEPT 
iptables <span class="re5">-I</span> RH-Firewall-<span class="nu0">1</span>-INPUT <span class="nu0">1</span> <span class="re5">-p</span> tcp <span class="re5">-m</span> state <span class="re5">--state</span> NEW <span class="re5">-m</span> tcp <span class="re5">--dport</span> <span class="nu0">21</span> <span class="re5">-j</span> ACCEPT</pre></div></div></div></div></div></div></div>


]]></content:encoded>
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		</item>
		<item>
		<title>Mysql cache on ramdisk</title>
		<link>http://itblog.su/mysql-cache-on-ramdisk.html</link>
		<comments>http://itblog.su/mysql-cache-on-ramdisk.html#comments</comments>
		<pubDate>Fri, 18 Mar 2011 07:16:56 +0000</pubDate>
		<dc:creator>Артур Шакиров</dc:creator>
				<category><![CDATA[Несортированное]]></category>

		<guid isPermaLink="false">http://itblog.su/?p=515</guid>
		<description><![CDATA[Выносим кеш и временные таблицы mysql в память. для этого подключим ram-диск: mount -t tmpfs -o size=1024M tmpfs /tmp/mysql/ echo 'tmpfs /tmp/mysql tmpfs size=1024M,mode=01770,uid=100,gid=101,noatime 0 0' &#62;&#62; /etc/fstab В конфиге Mysql /etc/my.cnf добавляем директиву в блоке [mysqld]: tmpdir=/tmp/mysql/ И перезапускаем mysql сервер. увидеть создаваемые временные файлы можно с помощью lsof lsof /tmp &#124; grep mysql [...]]]></description>
			<content:encoded><![CDATA[<p>Выносим кеш и временные таблицы mysql в память. для этого подключим ram-диск:</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="kw2">mount</span> <span class="re5">-t</span> tmpfs <span class="re5">-o</span> <span class="re2">size</span>=1024M tmpfs <span class="sy0">/</span>tmp<span class="sy0">/</span>mysql<span class="sy0">/</span>
<span class="kw3">echo</span> <span class="st_h">'tmpfs                   /tmp/mysql              tmpfs   size=1024M,mode=01770,uid=100,gid=101,noatime 0 0'</span> <span class="sy0">&gt;&gt;</span> <span class="sy0">/</span>etc<span class="sy0">/</span>fstab</pre></div></div></div></div></div></div></div>


<p>В конфиге Mysql /etc/my.cnf добавляем директиву в блоке [mysqld]:</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1"><span class="re2">tmpdir</span>=<span class="sy0">/</span>tmp<span class="sy0">/</span>mysql<span class="sy0">/</span></pre></div></div></div></div></div></div></div>


<p>И перезапускаем mysql сервер.</p>
<p>увидеть создаваемые временные файлы можно с помощью lsof</p>


<div class="wp-geshi-highlight-wrap5"><div class="wp-geshi-highlight-wrap4"><div class="wp-geshi-highlight-wrap3"><div class="wp-geshi-highlight-wrap2"><div class="wp-geshi-highlight-wrap"><div class="wp-geshi-highlight"><div class="bash"><pre class="de1">lsof <span class="sy0">/</span>tmp <span class="sy0">|</span> <span class="kw2">grep</span> mysql</pre></div></div></div></div></div></div></div>


<p>Кстати, в тот же рамдиск можно запихать кеш eAccelerator/xCache/squid.</p>
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		</item>
		<item>
		<title>Cisco 7900 series power supply</title>
		<link>http://itblog.su/cisco-7900-series-power-supply.html</link>
		<comments>http://itblog.su/cisco-7900-series-power-supply.html#comments</comments>
		<pubDate>Wed, 16 Mar 2011 09:49:38 +0000</pubDate>
		<dc:creator>Артур Шакиров</dc:creator>
				<category><![CDATA[Несортированное]]></category>

		<guid isPermaLink="false">http://itblog.su/?p=500</guid>
		<description><![CDATA[Айпифоны Cisco серии 7900 поставляются без БП, блоки питания к ним нужно заказывать отдельно. Или питать по PoE или Cisco Inline power (в зависимости от модели). На данный момент я видел блоки питания от трех поставщиков, официально они все называются: CP-PWR-CUBE-3 P/N 341-0206-02 48V &#8212; 0.38A По факту сейчас у меня в руках три разных [...]]]></description>
			<content:encoded><![CDATA[<p>Айпифоны Cisco серии 7900 поставляются без БП, блоки питания к ним нужно заказывать отдельно. Или питать по PoE или Cisco Inline power (в зависимости от модели). На данный момент я видел блоки питания от трех поставщиков, официально они все называются:</p>
<p>CP-PWR-CUBE-3<br />
P/N 341-0206-02<br />
48V &#8212; 0.38A</p>
<p>По факту сейчас у меня в руках три разных БП, от разных ОЕМ производителей.<br />
PSA18U-480C &#8212; олдстайл блоки питания, они раньше поставлялись, а сейчас ушлый китайцы делают полную копию.<br />
EADP-18CB A &#8212; их делают в Delta Electronics, известный тайландский OEM-щик. Поставляются официально.<br />
PSC18U-480 &#8212; делает неизвестный производитель в китае, поставляются официально.</p>
<p>Официальная цена в среднем 30-40$. На ebay можно купить за 14 баксов подделку под PSA18U-480C, но из 4-х блоков два перегревались и сдохли через пару часов.</p>

<a href='http://itblog.su/cisco-7900-series-power-supply.html/psc18u-480' title='PSC18U-480'><img width="150" height="150" src="http://itblog.su/wp-content/uploads/2011/03/PSC18U-480-150x150.jpg" class="attachment-thumbnail" alt="PSC18U-480" title="PSC18U-480" /></a>
<a href='http://itblog.su/cisco-7900-series-power-supply.html/psc18u-480-002' title='PSC18U-480-002'><img width="150" height="150" src="http://itblog.su/wp-content/uploads/2011/03/PSC18U-480-002-150x150.jpg" class="attachment-thumbnail" alt="PSC18U-480" title="PSC18U-480-002" /></a>
<a href='http://itblog.su/cisco-7900-series-power-supply.html/psc18u-480-003' title='PSC18U-480'><img width="150" height="150" src="http://itblog.su/wp-content/uploads/2011/03/PSC18U-480-003-150x150.jpg" class="attachment-thumbnail" alt="PSC18U-480" title="PSC18U-480" /></a>
<a href='http://itblog.su/cisco-7900-series-power-supply.html/psa18u-480c-001' title='PSA18U-480C'><img width="150" height="150" src="http://itblog.su/wp-content/uploads/2011/03/PSA18U-480C-001-150x150.jpg" class="attachment-thumbnail" alt="PSA18U-480C" title="PSA18U-480C" /></a>
<a href='http://itblog.su/cisco-7900-series-power-supply.html/psa18u-480c-002' title='PSA18U-480C'><img width="150" height="150" src="http://itblog.su/wp-content/uploads/2011/03/PSA18U-480C-002-150x150.jpg" class="attachment-thumbnail" alt="PSA18U-480C" title="PSA18U-480C" /></a>
<a href='http://itblog.su/cisco-7900-series-power-supply.html/psa18u-480c-003' title='PSA18U-480C'><img width="150" height="150" src="http://itblog.su/wp-content/uploads/2011/03/PSA18U-480C-003-150x150.jpg" class="attachment-thumbnail" alt="PSA18U-480C" title="PSA18U-480C" /></a>
<a href='http://itblog.su/cisco-7900-series-power-supply.html/eadp-18cb' title='EADP-18CB'><img width="150" height="150" src="http://itblog.su/wp-content/uploads/2011/03/EADP-18CB-150x150.jpg" class="attachment-thumbnail" alt="EADP-18CB" title="EADP-18CB" /></a>
<a href='http://itblog.su/cisco-7900-series-power-supply.html/eadp-18cb-2' title='EADP-18CB'><img width="150" height="150" src="http://itblog.su/wp-content/uploads/2011/03/EADP-18CB-2-150x150.jpg" class="attachment-thumbnail" alt="EADP-18CB" title="EADP-18CB" /></a>
<a href='http://itblog.su/cisco-7900-series-power-supply.html/eadp-18cb-3' title='EADP-18CB'><img width="150" height="150" src="http://itblog.su/wp-content/uploads/2011/03/EADP-18CB-3-150x150.jpg" class="attachment-thumbnail" alt="EADP-18CB" title="EADP-18CB" /></a>
<a href='http://itblog.su/cisco-7900-series-power-supply.html/cp-pwr-cube-3-power-connector' title='CP-PWR-CUBE-3-power-connector'><img width="100" height="121" src="http://itblog.su/wp-content/uploads/2011/03/CP-PWR-CUBE-3-power-connector.jpg" class="attachment-thumbnail" alt="коннектор" title="CP-PWR-CUBE-3-power-connector" /></a>

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		<title>wish list</title>
		<link>http://itblog.su/wish-list.html</link>
		<comments>http://itblog.su/wish-list.html#comments</comments>
		<pubDate>Thu, 17 Feb 2011 08:20:40 +0000</pubDate>
		<dc:creator>Артур Шакиров</dc:creator>
				<category><![CDATA[Несортированное]]></category>

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		<description><![CDATA[Делаю себе заметочку чтобы не забыть, домой надо купить: Cisco Linksys SLM2008 datashet in pdf Allied Telesis AT-WR2304N datashet in pdf]]></description>
			<content:encoded><![CDATA[<p>Делаю себе заметочку чтобы не забыть, домой надо купить:<br />
Cisco Linksys SLM2008 <a href='http://itblog.su/wp-content/uploads/2011/02/Cisco-SLM2008.pdf'>datashet in pdf</a><br />
<img src="http://itblog.su/wp-content/uploads/2011/02/slm2008-eu.jpg" alt="" title="Linksys SLM2008" width="381" class="aligncenter size-full wp-image-482" /></p>
<p>Allied Telesis AT-WR2304N <a href='http://itblog.su/wp-content/uploads/2011/02/WR2304N_ds.pdf'>datashet in pdf</a><br />
<img src="http://itblog.su/wp-content/uploads/2011/02/allied-telesis-at-wr2304n.jpg" alt="" title="allied-telesis-at-wr2304n" width="381" height="300" class="aligncenter size-full wp-image-484" /></p>
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