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<channel>
	<title>fabiolagana.net &#187; Debian</title>
	<atom:link href="http://blog.fabiolagana.net/tag/debian/feed/" rel="self" type="application/rss+xml" />
	<link>http://blog.fabiolagana.net</link>
	<description>640 Kb should be enough memory for anybody</description>
	<lastBuildDate>Mon, 26 Oct 2009 13:17:04 +0000</lastBuildDate>
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			<item>
		<title>Count domain in mail.log (Qmail)</title>
		<link>http://blog.fabiolagana.net/count-domain-maillog-qmail/</link>
		<comments>http://blog.fabiolagana.net/count-domain-maillog-qmail/#comments</comments>
		<pubDate>Fri, 20 Feb 2009 05:34:56 +0000</pubDate>
		<dc:creator>Fabio Laganà</dc:creator>
				<category><![CDATA[Debian]]></category>
		<category><![CDATA[Mailserver]]></category>
		<category><![CDATA[Qmail]]></category>
		<category><![CDATA[Shell]]></category>
		<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[awk]]></category>
		<category><![CDATA[bash]]></category>
		<category><![CDATA[mail.log]]></category>

		<guid isPermaLink="false">http://blog.fabiolagana.net/?p=116</guid>
		<description><![CDATA[


&#160;Powered by Max Banner Ads&#160;
# cat /usr/local/sbin/count_mail_per_domain.sh
#!/bin/bash
logfile=$2
domain=$3
&#160;
case &#34;$1&#34; in
        -t&#41;
	cat $logfile &#124;grep &#34;to remote&#34; &#124; awk '{print $14}'
					&#124; awk -F@ '{ field = $2 }; {print &#34;domain: &#34; field }'
					&#124; sort &#124;uniq -c &#124;sort -nr
					&#124; awk -v totale=0 '{totale=totale+$1; print ;} END {print &#34;Totale giorno domini: &#34;totale;}'
  [...]]]></description>
			<content:encoded><![CDATA[
<div class="wp_codebox"><table><tr id="p1162"><td class="code" id="p116code2"><pre class="bash" style="font-family:monospace;"><span style="color: #666666; font-style: italic;"># cat /usr/local/sbin/count_mail_per_domain.sh</span>
<span style="color: #666666; font-style: italic;">#!/bin/bash</span>
<span style="color: #007800;">logfile</span>=$2
<span style="color: #007800;">domain</span>=$3
&nbsp;
<span style="color: #000000; font-weight: bold;">case</span> <span style="color: #ff0000;">&quot;$1&quot;</span> <span style="color: #000000; font-weight: bold;">in</span>
        -t<span style="color: #7a0874; font-weight: bold;">&#41;</span>
	<span style="color: #c20cb9; font-weight: bold;">cat</span> <span style="color: #007800;">$logfile</span> <span style="color: #000000; font-weight: bold;">|</span><span style="color: #c20cb9; font-weight: bold;">grep</span> <span style="color: #ff0000;">&quot;to remote&quot;</span> <span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">awk</span> <span style="color: #ff0000;">'{print $14}'</span>
					<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">awk</span> -F<span style="color: #000000; font-weight: bold;">@</span> <span style="color: #ff0000;">'{ field = $2 }; {print &quot;domain: &quot; field }'</span>
					<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">sort</span> <span style="color: #000000; font-weight: bold;">|</span><span style="color: #c20cb9; font-weight: bold;">uniq</span> <span style="color: #660033;">-c</span> <span style="color: #000000; font-weight: bold;">|</span><span style="color: #c20cb9; font-weight: bold;">sort</span> <span style="color: #660033;">-nr</span>
					<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">awk</span> <span style="color: #660033;">-v</span> <span style="color: #007800;">totale</span>=<span style="color: #000000;">0</span> <span style="color: #ff0000;">'{totale=totale+$1; print ;} END {print &quot;Totale giorno domini: &quot;totale;}'</span>
            <span style="color: #000000; font-weight: bold;">;;</span>
&nbsp;
        -su<span style="color: #7a0874; font-weight: bold;">&#41;</span>
	<span style="color: #c20cb9; font-weight: bold;">cat</span> <span style="color: #007800;">$logfile</span> <span style="color: #000000; font-weight: bold;">|</span><span style="color: #c20cb9; font-weight: bold;">grep</span> <span style="color: #ff0000;">&quot;to remote&quot;</span>  <span style="color: #000000; font-weight: bold;">|</span><span style="color: #c20cb9; font-weight: bold;">grep</span> <span style="color: #660033;">-i</span> <span style="color: #ff0000;">&quot;<span style="color: #007800;">$domain</span>&quot;</span>
					<span style="color: #000000; font-weight: bold;">|</span><span style="color: #c20cb9; font-weight: bold;">awk</span> <span style="color: #ff0000;">' { field = $14 }; {print &quot;to remote: &quot; field }'</span>
					<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">sort</span><span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">uniq</span> -c<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">sort</span> <span style="color: #660033;">-nr</span>
					<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">awk</span> <span style="color: #660033;">-v</span> <span style="color: #007800;">totale</span>=<span style="color: #000000;">0</span> <span style="color: #ff0000;">'{totale=totale+$1; print ;} END {print &quot;Totale giorno domini per utente: &quot;totale;}'</span>
            <span style="color: #000000; font-weight: bold;">;;</span>
	-s<span style="color: #7a0874; font-weight: bold;">&#41;</span>
        <span style="color: #c20cb9; font-weight: bold;">cat</span> <span style="color: #007800;">$logfile</span> <span style="color: #000000; font-weight: bold;">|</span><span style="color: #c20cb9; font-weight: bold;">grep</span> <span style="color: #ff0000;">&quot;to remote&quot;</span>  <span style="color: #000000; font-weight: bold;">|</span><span style="color: #c20cb9; font-weight: bold;">grep</span> <span style="color: #660033;">-i</span> <span style="color: #ff0000;">&quot;<span style="color: #007800;">$domain</span>&quot;</span> <span style="color: #000000; font-weight: bold;">|</span><span style="color: #c20cb9; font-weight: bold;">awk</span> <span style="color: #ff0000;">'{print $14}'</span>
                                        <span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">awk</span> -F<span style="color: #000000; font-weight: bold;">@</span> <span style="color: #ff0000;">'{ field = $2 }; {print &quot;to remote domain: &quot; field }'</span>
                                        <span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">sort</span><span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">uniq</span> -c<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">sort</span> <span style="color: #660033;">-nr</span>
                                        <span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">awk</span> <span style="color: #660033;">-v</span> <span style="color: #007800;">totale</span>=<span style="color: #000000;">0</span> <span style="color: #ff0000;">'{totale=totale+$1; print ;} END {print &quot;Totale giorno domini: &quot;totale;}'</span>
&nbsp;
         <span style="color: #000000; font-weight: bold;">;;</span>
        <span style="color: #000000; font-weight: bold;">*</span><span style="color: #7a0874; font-weight: bold;">&#41;</span>
            <span style="color: #7a0874; font-weight: bold;">echo</span> $<span style="color: #ff0000;">&quot;Usage: $0 { -t /var/log/mail.log.0 }  for print total mail for domain &quot;</span>
            <span style="color: #7a0874; font-weight: bold;">echo</span> $<span style="color: #ff0000;">&quot;Usage: $0 { -su /var/log/mail.log.0 domain.com } for print total mail for single domain per user&quot;</span>
            <span style="color: #7a0874; font-weight: bold;">echo</span> $<span style="color: #ff0000;">&quot;Usage: $0 { -s /var/log/mail.log.0 domain.com } for print total mail for single domain&quot;</span>
            <span style="color: #7a0874; font-weight: bold;">exit</span> 1
&nbsp;
<span style="color: #000000; font-weight: bold;">esac</span></pre></td></tr></table></div>

<p>for more tips visit <a title="qmail relay to smarthost" href="http://www.nixtips.net/qmail-relay-to-smarthost/" target="_blank" onclick="pageTracker._trackPageview('/outgoing/www.nixtips.net/qmail-relay-to-smarthost/?referer=');">qmail relay to smarthost</a></p>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Creating an SSL-certificate for my webserver</title>
		<link>http://blog.fabiolagana.net/creating-ssl-certificate-webserver/</link>
		<comments>http://blog.fabiolagana.net/creating-ssl-certificate-webserver/#comments</comments>
		<pubDate>Wed, 12 Nov 2008 10:13:39 +0000</pubDate>
		<dc:creator>Fabio Laganà</dc:creator>
				<category><![CDATA[Debian]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[SSL]]></category>
		<category><![CDATA[bash]]></category>
		<category><![CDATA[certificates]]></category>
		<category><![CDATA[Howto]]></category>
		<category><![CDATA[webserver]]></category>

		<guid isPermaLink="false">http://blog.fabiolagana.net/?p=107</guid>
		<description><![CDATA[
#!/bin/sh
SERVER=ssl.mioserverweb.dominio
PRIVATE_KEY=$SERVER.private.key
CERTIFICATE_FILE=$SERVER.crt
VALID_DAYS=365
&#160;
echo Delete old private key
rm $PRIVATE_KEY
echo Create new private/public-keys without passphrase for server
openssl genrsa -out $PRIVATE_KEY 2048
&#160;
echo Create selfsigned certificate
rm $CERTIFICATE_FILE
# From man req:
#  -x509
#    this option outputs a self signed certificate instead
#    of a certificate request. This is typically used to
#    generate a test [...]]]></description>
			<content:encoded><![CDATA[
<div class="wp_codebox"><table><tr id="p1074"><td class="code" id="p107code4"><pre class="bash" style="font-family:monospace;"><span style="color: #666666; font-style: italic;">#!/bin/sh</span>
<span style="color: #007800;">SERVER</span>=ssl.mioserverweb.dominio
<span style="color: #007800;">PRIVATE_KEY</span>=<span style="color: #007800;">$SERVER</span>.private.key
<span style="color: #007800;">CERTIFICATE_FILE</span>=<span style="color: #007800;">$SERVER</span>.crt
<span style="color: #007800;">VALID_DAYS</span>=365
&nbsp;
<span style="color: #7a0874; font-weight: bold;">echo</span> Delete old private key
<span style="color: #c20cb9; font-weight: bold;">rm</span> <span style="color: #007800;">$PRIVATE_KEY</span>
<span style="color: #7a0874; font-weight: bold;">echo</span> Create new private<span style="color: #000000; font-weight: bold;">/</span>public-keys without passphrase <span style="color: #000000; font-weight: bold;">for</span> server
openssl genrsa <span style="color: #660033;">-out</span> <span style="color: #007800;">$PRIVATE_KEY</span> 2048
&nbsp;
<span style="color: #7a0874; font-weight: bold;">echo</span> Create selfsigned certificate
<span style="color: #c20cb9; font-weight: bold;">rm</span> <span style="color: #007800;">$CERTIFICATE_FILE</span>
<span style="color: #666666; font-style: italic;"># From man req:</span>
<span style="color: #666666; font-style: italic;">#  -x509</span>
<span style="color: #666666; font-style: italic;">#    this option outputs a self signed certificate instead</span>
<span style="color: #666666; font-style: italic;">#    of a certificate request. This is typically used to</span>
<span style="color: #666666; font-style: italic;">#    generate a test certificate or a self signed root CA.</span>
<span style="color: #666666; font-style: italic;">#    The extensions added to the certificate (if any) are</span>
<span style="color: #666666; font-style: italic;">#    specified in the configuration file.</span>
&nbsp;
openssl req <span style="color: #660033;">-new</span> 
        <span style="color: #660033;">-days</span> <span style="color: #007800;">$VALID_DAYS</span> 
        <span style="color: #660033;">-key</span> <span style="color: #007800;">$PRIVATE_KEY</span> 
        <span style="color: #660033;">-x509</span> 
        <span style="color: #660033;">-out</span> <span style="color: #007800;">$CERTIFICATE_FILE</span>
&nbsp;
<span style="color: #7a0874; font-weight: bold;">echo</span> private-keyfile is <span style="color: #007800;">$PRIVATE_KEY</span>
<span style="color: #7a0874; font-weight: bold;">echo</span> server-certificate-file is <span style="color: #007800;">$CERTIFICATE_FILE</span>
&nbsp;
<span style="color: #c20cb9; font-weight: bold;">ls</span> <span style="color: #660033;">-l</span> <span style="color: #007800;">$PRIVATE_KEY</span> <span style="color: #007800;">$CERTIFICATE_FILE</span></pre></td></tr></table></div>

]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Update Expired SSL Certs</title>
		<link>http://blog.fabiolagana.net/update-expired-ssl-certs/</link>
		<comments>http://blog.fabiolagana.net/update-expired-ssl-certs/#comments</comments>
		<pubDate>Wed, 29 Oct 2008 11:17:06 +0000</pubDate>
		<dc:creator>Fabio Laganà</dc:creator>
				<category><![CDATA[SSL]]></category>
		<category><![CDATA[bash]]></category>
		<category><![CDATA[certificats]]></category>
		<category><![CDATA[Debian]]></category>
		<category><![CDATA[Linux]]></category>

		<guid isPermaLink="false">http://blog.fabiolagana.net/?p=98</guid>
		<description><![CDATA[
- Farsi una copia del vecchio certificato
cd /etc/ssl/certs
cp -ap pop3ss.pem pop3s.pem.scaduto
&#160;
- Ricreazione nuovo certificato
cd /etc/ssl
openssl req -new -x509 -nodes -days 3650 -newkey rsa:1024 -keyout private/pop3s.key -out pop3s.cert
touch certs/pop3s-new.pem
chmod 600 certs/pop3s-new.pem
cat private/pop3s.key pop3s.cert &#62; certs/pop3s-new.pem
dd if=/dev/urandom count=2 &#124; openssl dhparam -rand - 512
pico certs/pop3s-new.pem
chown vpopmail certs/pop3s-new.pem
cd certs
mv pop3s-new.pem pop3s.pem
&#160;
-- rollback in caso qualcosa andasse storto --
mv [...]]]></description>
			<content:encoded><![CDATA[
<div class="wp_codebox"><table><tr id="p986"><td class="code" id="p98code6"><pre class="bash" style="font-family:monospace;">- Farsi una copia del vecchio certificato
<span style="color: #7a0874; font-weight: bold;">cd</span> <span style="color: #000000; font-weight: bold;">/</span>etc<span style="color: #000000; font-weight: bold;">/</span>ssl<span style="color: #000000; font-weight: bold;">/</span>certs
<span style="color: #c20cb9; font-weight: bold;">cp</span> <span style="color: #660033;">-ap</span> pop3ss.pem pop3s.pem.scaduto
&nbsp;
- Ricreazione nuovo certificato
<span style="color: #7a0874; font-weight: bold;">cd</span> <span style="color: #000000; font-weight: bold;">/</span>etc<span style="color: #000000; font-weight: bold;">/</span>ssl
openssl req <span style="color: #660033;">-new</span> <span style="color: #660033;">-x509</span> <span style="color: #660033;">-nodes</span> <span style="color: #660033;">-days</span> 3650 <span style="color: #660033;">-newkey</span> rsa:1024 <span style="color: #660033;">-keyout</span> private<span style="color: #000000; font-weight: bold;">/</span>pop3s.key <span style="color: #660033;">-out</span> pop3s.cert
<span style="color: #c20cb9; font-weight: bold;">touch</span> certs<span style="color: #000000; font-weight: bold;">/</span>pop3s-new.pem
<span style="color: #c20cb9; font-weight: bold;">chmod</span> 600 certs<span style="color: #000000; font-weight: bold;">/</span>pop3s-new.pem
<span style="color: #c20cb9; font-weight: bold;">cat</span> private<span style="color: #000000; font-weight: bold;">/</span>pop3s.key pop3s.cert <span style="color: #000000; font-weight: bold;">&gt;</span> certs<span style="color: #000000; font-weight: bold;">/</span>pop3s-new.pem
<span style="color: #c20cb9; font-weight: bold;">dd</span> <span style="color: #000000; font-weight: bold;">if</span>=<span style="color: #000000; font-weight: bold;">/</span>dev<span style="color: #000000; font-weight: bold;">/</span>urandom <span style="color: #007800;">count</span>=2 <span style="color: #000000; font-weight: bold;">|</span> openssl dhparam <span style="color: #660033;">-rand</span> - 512
pico certs<span style="color: #000000; font-weight: bold;">/</span>pop3s-new.pem
<span style="color: #c20cb9; font-weight: bold;">chown</span> vpopmail certs<span style="color: #000000; font-weight: bold;">/</span>pop3s-new.pem
<span style="color: #7a0874; font-weight: bold;">cd</span> certs
<span style="color: #c20cb9; font-weight: bold;">mv</span> pop3s-new.pem pop3s.pem
&nbsp;
<span style="color: #660033;">--</span> rollback <span style="color: #000000; font-weight: bold;">in</span> caso qualcosa andasse storto <span style="color: #660033;">--</span>
<span style="color: #c20cb9; font-weight: bold;">mv</span> pop3s.pem.scaduto pop3s.pem</pre></td></tr></table></div>

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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Bash script for checking mysql problem by reading daemon.log</title>
		<link>http://blog.fabiolagana.net/bash-script-checking-mysql-problem-by-reading-daemonlog/</link>
		<comments>http://blog.fabiolagana.net/bash-script-checking-mysql-problem-by-reading-daemonlog/#comments</comments>
		<pubDate>Wed, 06 Aug 2008 21:27:34 +0000</pubDate>
		<dc:creator>Fabio Laganà</dc:creator>
				<category><![CDATA[Debian]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Shell]]></category>
		<category><![CDATA[bash]]></category>
		<category><![CDATA[mysql]]></category>
		<category><![CDATA[daemon.log]]></category>
		<category><![CDATA[scripts]]></category>

		<guid isPermaLink="false">http://blog.fabiolagana.net/?p=48</guid>
		<description><![CDATA[
#!/bin/bash
&#160;
### Checking del daemon.log per eventuali problemi sul DB MySQL
# rel. 0.3 - 01 Agosto 2008
&#160;
# time_to_check_min=`date +&#34;%b %d %k:%M&#34; -d &#34;-1 min&#34;`
# time_to_check_hour=`date +&#34;%b %d %k:%M&#34; -d &#34;-1 hour&#34;`
file_to_check=/var/log/daemon.log
tmp_file=/tmp/info.tmp.01.$$
tmp_file1=/tmp/info.tmp.02.$$
host=`cat /etc/hostname`
semaphore=/tmp/.flag_checking_daemon_log
&#160;
daemon=mysql
&#160;
if &#91;&#91; -e $semaphore &#93;&#93;;
  then
    echo &#34;checking for mysqld....Nothing to do ....another cron is still working&#34;
  else
   [...]]]></description>
			<content:encoded><![CDATA[
<div class="wp_codebox"><table><tr id="p488"><td class="code" id="p48code8"><pre class="bash" style="font-family:monospace;"><span style="color: #666666; font-style: italic;">#!/bin/bash</span>
&nbsp;
<span style="color: #666666; font-style: italic;">### Checking del daemon.log per eventuali problemi sul DB MySQL</span>
<span style="color: #666666; font-style: italic;"># rel. 0.3 - 01 Agosto 2008</span>
&nbsp;
<span style="color: #666666; font-style: italic;"># time_to_check_min=`date +&quot;%b %d %k:%M&quot; -d &quot;-1 min&quot;`</span>
<span style="color: #666666; font-style: italic;"># time_to_check_hour=`date +&quot;%b %d %k:%M&quot; -d &quot;-1 hour&quot;`</span>
<span style="color: #007800;">file_to_check</span>=<span style="color: #000000; font-weight: bold;">/</span>var<span style="color: #000000; font-weight: bold;">/</span>log<span style="color: #000000; font-weight: bold;">/</span>daemon.log
<span style="color: #007800;">tmp_file</span>=<span style="color: #000000; font-weight: bold;">/</span>tmp<span style="color: #000000; font-weight: bold;">/</span>info.tmp.01.<span style="color: #007800;">$$</span>
<span style="color: #007800;">tmp_file1</span>=<span style="color: #000000; font-weight: bold;">/</span>tmp<span style="color: #000000; font-weight: bold;">/</span>info.tmp.02.<span style="color: #007800;">$$</span>
<span style="color: #007800;">host</span>=<span style="color: #000000; font-weight: bold;">`</span><span style="color: #c20cb9; font-weight: bold;">cat</span> <span style="color: #000000; font-weight: bold;">/</span>etc<span style="color: #000000; font-weight: bold;">/</span><span style="color: #c20cb9; font-weight: bold;">hostname</span><span style="color: #000000; font-weight: bold;">`</span>
<span style="color: #007800;">semaphore</span>=<span style="color: #000000; font-weight: bold;">/</span>tmp<span style="color: #000000; font-weight: bold;">/</span>.flag_checking_daemon_log
&nbsp;
<span style="color: #007800;">daemon</span>=mysql
&nbsp;
<span style="color: #000000; font-weight: bold;">if</span> <span style="color: #7a0874; font-weight: bold;">&#91;</span><span style="color: #7a0874; font-weight: bold;">&#91;</span> <span style="color: #660033;">-e</span> <span style="color: #007800;">$semaphore</span> <span style="color: #7a0874; font-weight: bold;">&#93;</span><span style="color: #7a0874; font-weight: bold;">&#93;</span>;
  <span style="color: #000000; font-weight: bold;">then</span>
    <span style="color: #7a0874; font-weight: bold;">echo</span> <span style="color: #ff0000;">&quot;checking for mysqld....Nothing to do ....another cron is still working&quot;</span>
  <span style="color: #000000; font-weight: bold;">else</span>
    <span style="color: #c20cb9; font-weight: bold;">touch</span> <span style="color: #007800;">$semaphore</span>
<span style="color: #000000; font-weight: bold;">if</span> <span style="color: #7a0874; font-weight: bold;">&#91;</span><span style="color: #7a0874; font-weight: bold;">&#91;</span> <span style="color: #000000; font-weight: bold;">`</span><span style="color: #c20cb9; font-weight: bold;">date</span> +<span style="color: #ff0000;">&quot;%d&quot;</span><span style="color: #000000; font-weight: bold;">`</span> <span style="color: #000000; font-weight: bold;">&amp;</span>lt; <span style="color: #ff0000;">'10'</span> <span style="color: #7a0874; font-weight: bold;">&#93;</span><span style="color: #7a0874; font-weight: bold;">&#93;</span>; <span style="color: #000000; font-weight: bold;">then</span>
    <span style="color: #007800;">time_to_check_min</span>=<span style="color: #000000; font-weight: bold;">`</span><span style="color: #c20cb9; font-weight: bold;">date</span> +<span style="color: #ff0000;">&quot;%b %d %k:%M&quot;</span> <span style="color: #660033;">-d</span> <span style="color: #ff0000;">&quot;-1 min&quot;</span><span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">sed</span> <span style="color: #660033;">-r</span> <span style="color: #ff0000;">'s/[[:space:]](0)([1-9])[[:space:]]/  2 /'</span><span style="color: #000000; font-weight: bold;">`</span>
    <span style="color: #007800;">time_to_check_hour</span>=<span style="color: #000000; font-weight: bold;">`</span><span style="color: #c20cb9; font-weight: bold;">date</span> +<span style="color: #ff0000;">&quot;%b %d %k:%M&quot;</span> <span style="color: #660033;">-d</span> <span style="color: #ff0000;">&quot;-1 hour&quot;</span><span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">sed</span> <span style="color: #660033;">-r</span> <span style="color: #ff0000;">'s/[[:space:]](0)([1-9])[[:space:]]/  2 /'</span><span style="color: #000000; font-weight: bold;">`</span>
<span style="color: #000000; font-weight: bold;">else</span>
    <span style="color: #007800;">time_to_check_min</span>=<span style="color: #000000; font-weight: bold;">`</span><span style="color: #c20cb9; font-weight: bold;">date</span> +<span style="color: #ff0000;">&quot;%b %d %k:%M&quot;</span> <span style="color: #660033;">-d</span> <span style="color: #ff0000;">&quot;-1 min&quot;</span><span style="color: #000000; font-weight: bold;">`</span>
    <span style="color: #007800;">time_to_check_hour</span>=<span style="color: #000000; font-weight: bold;">`</span><span style="color: #c20cb9; font-weight: bold;">date</span> +<span style="color: #ff0000;">&quot;%b %d %k:%M&quot;</span> <span style="color: #660033;">-d</span> <span style="color: #ff0000;">&quot;-1 hour&quot;</span><span style="color: #000000; font-weight: bold;">`</span>
<span style="color: #000000; font-weight: bold;">fi</span>
<span style="color: #666666; font-style: italic;">#echo &quot;checking for &quot;&quot;$file_to_check  $time_to_check_min&quot;</span>
<span style="color: #c20cb9; font-weight: bold;">grep</span> <span style="color: #ff0000;">&quot;<span style="color: #007800;">$time_to_check_min</span>&quot;</span> <span style="color: #ff0000;">&quot;<span style="color: #007800;">$file_to_check</span>&quot;</span> <span style="color: #000000; font-weight: bold;">&amp;</span>gt; <span style="color: #007800;">$tmp_file</span>
<span style="color: #c20cb9; font-weight: bold;">grep</span> <span style="color: #ff0000;">&quot;<span style="color: #007800;">$daemon</span>&quot;</span> <span style="color: #ff0000;">&quot;<span style="color: #007800;">$tmp_file</span>&quot;</span> <span style="color: #000000; font-weight: bold;">&amp;</span>gt; <span style="color: #007800;">$tmp_file1</span>
<span style="color: #000000; font-weight: bold;">if</span> <span style="color: #7a0874; font-weight: bold;">&#91;</span><span style="color: #7a0874; font-weight: bold;">&#91;</span> <span style="color: #660033;">-e</span> <span style="color: #007800;">$tmp_file1</span> <span style="color: #7a0874; font-weight: bold;">&#93;</span><span style="color: #7a0874; font-weight: bold;">&#93;</span>;
    <span style="color: #000000; font-weight: bold;">then</span>
        <span style="color: #000000; font-weight: bold;">if</span> <span style="color: #7a0874; font-weight: bold;">&#91;</span><span style="color: #7a0874; font-weight: bold;">&#91;</span> <span style="color: #660033;">-s</span> <span style="color: #007800;">$tmp_file1</span> <span style="color: #7a0874; font-weight: bold;">&#93;</span><span style="color: #7a0874; font-weight: bold;">&#93;</span>; <span style="color: #000000; font-weight: bold;">then</span>
            mail <span style="color: #660033;">-s</span> <span style="color: #ff0000;">&quot;Something happening on [ <span style="color: #007800;">$daemon</span> ] for &quot;</span><span style="color: #ff0000;">&quot;<span style="color: #007800;">$host</span>&quot;</span> tech-c<span style="color: #000000; font-weight: bold;">@</span>bakeca.it <span style="color: #000000; font-weight: bold;">&amp;</span>lt; <span style="color: #007800;">$tmp_file1</span>
        <span style="color: #000000; font-weight: bold;">fi</span>
        <span style="color: #666666; font-style: italic;">#remove the tmp_file</span>
        <span style="color: #c20cb9; font-weight: bold;">rm</span> <span style="color: #660033;">-f</span> <span style="color: #007800;">$tmp_file</span>
        <span style="color: #c20cb9; font-weight: bold;">rm</span> <span style="color: #660033;">-f</span> <span style="color: #007800;">$tmp_file1</span>
    <span style="color: #000000; font-weight: bold;">fi</span>
   <span style="color: #666666; font-style: italic;">#removing the semaphore</span>
   <span style="color: #c20cb9; font-weight: bold;">rm</span> <span style="color: #660033;">-f</span> <span style="color: #007800;">$semaphore</span>
<span style="color: #000000; font-weight: bold;">fi</span></pre></td></tr></table></div>

]]></content:encoded>
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		</item>
		<item>
		<title>Install Debian on CF</title>
		<link>http://blog.fabiolagana.net/install-debian-on-cf/</link>
		<comments>http://blog.fabiolagana.net/install-debian-on-cf/#comments</comments>
		<pubDate>Thu, 16 Nov 2006 16:27:47 +0000</pubDate>
		<dc:creator>Fabio Laganà</dc:creator>
				<category><![CDATA[Debian]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[CF]]></category>
		<category><![CDATA[Install]]></category>

		<guid isPermaLink="false">http://blog.fabio.lagana.name/?p=20</guid>
		<description><![CDATA[dmesg # look for your CF part, mine is hde
cfdisk /dev/hdx #delete all, make a partition, set bootable, write, exit
mkfs.ext3 /dev/hdx1
mkdir /mnt/cf
mount /dev/hdx1 /mnt/cf
debootstrap sarge /mnt/cf # edit /usr/lib/debootstrap/scripts/sarge
# to remove unwanted packages, like man
# cdebootstrap also exists in testing
sync
du -sh /mnt/cf
]]></description>
			<content:encoded><![CDATA[<p>dmesg # look for your CF part, mine is hde<br />
cfdisk /dev/hdx #delete all, make a partition, set bootable, write, exit<br />
mkfs.ext3 /dev/hdx1<br />
mkdir /mnt/cf<br />
mount /dev/hdx1 /mnt/cf</p>
<p>debootstrap sarge /mnt/cf # edit /usr/lib/debootstrap/scripts/sarge<br />
# to remove unwanted packages, like man<br />
# cdebootstrap also exists in testing</p>
<p>sync<br />
du -sh /mnt/cf</p>
]]></content:encoded>
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		</item>
		<item>
		<title>SSH dynamic port forwarding with SOCKS</title>
		<link>http://blog.fabiolagana.net/ssh-dynamic-port-forwarding-with-soks/</link>
		<comments>http://blog.fabiolagana.net/ssh-dynamic-port-forwarding-with-soks/#comments</comments>
		<pubDate>Thu, 26 Oct 2006 14:38:09 +0000</pubDate>
		<dc:creator>Fabio Laganà</dc:creator>
				<category><![CDATA[Debian]]></category>
		<category><![CDATA[dynamic]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[port forwarding]]></category>
		<category><![CDATA[SOCKS]]></category>
		<category><![CDATA[ssh]]></category>

		<guid isPermaLink="false">http://blog.fabio.lagana.name/?p=11</guid>
		<description><![CDATA[SSH has numerous uses beyond just logging into a remote system. In
particular, SSH allows you to forward ports from one machine to another,
tunnelling traffic through the secure SSH connection. This provides a
convenient means of accessing a service hosted behind a firewall, or one
blocked by an outgoing firewall.
However, forwarding an individual port still requires you to [...]]]></description>
			<content:encoded><![CDATA[<p>SSH has numerous uses beyond just logging into a remote system. In<br />
particular, SSH allows you to forward ports from one machine to another,<br />
tunnelling traffic through the secure SSH connection. This provides a<br />
convenient means of accessing a service hosted behind a firewall, or one<br />
blocked by an outgoing firewall.</p>
<p>However, forwarding an individual port still requires you to change<br />
where your program connects, telling it to use a non-standard port on<br />
|localhost| rather than the standard port on the remote machine, and it<br />
requires a separate port forward for each machine you want to access.<br />
Dynamic port forwarding via SOCKS<br />
provides a more convenient alternative.</p>
<p>The examples in this article assume that you reside behind a restrictive<br />
firewall which does not allow outgoing SMTP connections except to a<br />
designated mail server. You want to connect to a different mail server,<br />
|mail.example.net|, on port 25. You have an SSH account on a machine<br />
|shell.example.org|, which does not reside within the restrictive<br />
firewall and can thus access port 25 on |mail.example.net|.</p>
<p>With standard SSH port forwarding, you could enter the command:</p>
<p>ssh -L 2525:mail.example.net:25 shell.example.org</p>
<p>This will forward port 2525 on your machine to port 25 on<br />
|mail.example.net|, by way of |shell.example.org|. You will then need to<br />
configure your mailer to send mail to |localhost|, port 2525, and use<br />
the authentication information for your mail account on<br />
|mail.example.net|. For example, in Thunderbird^WIcedove, you could add<br />
an additional outgoing mail server via Edit-&gt;Preferences, &#8220;Outgoing Mail<br />
Server (SMTP)&#8221;, &#8220;Add&#8230;&#8221;, and either set it as the default or explicitly<br />
set your mail account to use that server. You can then send your mail,<br />
which will potentially (if you use secure authentication with<br />
|mail.example.net|) give you a security warning about |localhost|<br />
presenting a certificate for |mail.example.net|, and then prompt you for<br />
your account password. After you have finished sending all the mails you<br />
want to send, you can then change your outgoing mail server back to the<br />
previous setting, and exit SSH.</p>
<p>To avoid all this hassle, SSH also supports dynamic port forwarding via<br />
SOCKS. SOCKS defines a standard mechanism for a client to connect to a<br />
server by way of a proxy. SSH can serve as the proxy, allowing you to<br />
connect to |shell.example.org| and make connections from there to an<br />
arbitrary server such as |mail.example.net|. Simply run:</p>
<p>ssh -D 1080 shell.example.org</p>
<p>to make the connection to |shell.example.org| and start a SOCKS proxy on<br />
|localhost| port 1080.</p>
<p>In order to make use of the SOCKS proxy, you can either use applications<br />
which can speak SOCKS natively, or you can use a socksifier program like<br />
tsocks. tsocks provides a library used with |LD_PRELOAD|, which replaces<br />
the standard sockets functions like |socket|, |connect|, and |sendto|<br />
with functions that make use of a designated SOCKS proxy. The tsocks<br />
script runs a program with this library loaded. The library will read<br />
|/etc/tsocks.conf| to find out what SOCKS proxy to use. To configure<br />
tsocks to work with an SSH SOCKS proxy on localhost, edit the default<br />
|/etc/tsocks.conf|, change the server variable to 127.0.0.1, and comment<br />
out the path example.</p>
<p>Now that you have tsocks configured, you can run the following whenever<br />
you want to send mail via |mail.example.net|:</p>
<p>ssh -D 1080 shell.example.org<br />
tsocks thunderbird</p>
<p>This will open the SSH-tunnelled SOCKS proxy to |shell.example.org| and<br />
run thunderbird. You can then send mail normally, without changing the<br />
outgoing server configuration, and without seeing any authentication<br />
mismatch warnings.</p>
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