233 lines
6.2 KiB
HTML
233 lines
6.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<HEAD>
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<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
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<TITLE>Linux simple fax printer server mini-HOWTO (faxsrv-mini-HOWTO): Questions & Answers</TITLE>
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<LINK HREF="Fax-Server-3.html" REL=next>
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<LINK HREF="Fax-Server-1.html" REL=previous>
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<LINK HREF="Fax-Server.html#toc2" REL=contents>
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</HEAD>
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<BODY>
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<A HREF="Fax-Server-3.html">Next</A>
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<A HREF="Fax-Server-1.html">Previous</A>
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<A HREF="Fax-Server.html#toc2">Contents</A>
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<HR>
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<H2><A NAME="s2">2. Questions & Answers</A></H2>
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<H2><A NAME="ss2.1">2.1 What is a fax printer server ?</A>
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</H2>
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<P> A fax printer server is a setup of few programs:
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efax, and the print server, in such a way that sending a fax from
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the computer is as simple as sending printout to a printer.
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<P>
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<H2><A NAME="ss2.2">2.2 How to set it up ?</A>
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</H2>
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<P>Setting efax as fax print server includes few problems
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As I worked it out few times, I decided to collect this wisdom
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in this small mini-HOWTO, comments are welcome at <CODE><erez@newplaces.com></CODE>.
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I describe them here and the solutions, and all the instruction in short steps:
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<P>
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<H3>The efax Software</H3>
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<P>make sure you have the efax package.
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<P>On RPM based system use the command 'rpm -qv efax'.
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<P>You can get the efax sources in tar.gz format from sunsite:
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ftp://sunsite.unc.edu/pub/Linux/apps/serialcomm/fax/efax08a.tar.gz
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or binary rpm package:
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ftp://ftp.redhat.com/pub/redhat/redhat-4.2/i386/RedHat/RPMS/efax-0.8a-3.i386.rpm
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<H3>The printcap entry.</H3>
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<P>The efax documentation is missing the : at the end of the printcap entry.
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<P>Solution: Add the following <CODE>/etc/printcap</CODE> entry:
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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fax:\
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:lp=/dev/null:\
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:sd=/var/spool/fax:\
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:if=/usr/bin/faxlpr:
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>
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<H3>The fax command</H3>
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<P> Use hard link and not symbolic link to the fax command.
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<P>Run the command:
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<BLOCKQUOTE><CODE>
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<PRE>
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ln /usr/bin/fax /usr/bin/faxlpr
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>
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<H3>The /usr/bin/fax file.</H3>
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<P> Edit the /usr/bin/fax to your preferences:
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<P> choose the right Fax Class for your modem:
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<BLOCKQUOTE><CODE>
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<PRE>
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CLASS=2.0
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</PRE>
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</CODE></BLOCKQUOTE>
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Set the FROM="your international phone number" field
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<BLOCKQUOTE><CODE>
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<PRE>
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NAME="Your Name"
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</PRE>
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</CODE></BLOCKQUOTE>
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Add the line for conversion of international phone number to local
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for example in Israel you would use:
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<BLOCKQUOTE><CODE>
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<PRE>
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TELCVT='sed -e s/+972/0/ -e s/+/00/' # Israel
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>There is a problem in the file in line 586, change the
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<CODE>cfile=...</CODE> with the following two lines:
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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cfile=`/usr/bin/tail -1 lock`
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cfile=`cat $cfile`
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>at lines 586,587 there shouldn't be '-' signs the lines are:
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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0) echo "$l" | mail -s "fax to $num succeeded" $user@$host ;;
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*) echo "$l" | mail -s "fax to $num failed " $user@$host ;;
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>
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<H3>The /var/spool/fax directory.</H3>
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<P> create the directory /var/spool/fax
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<BLOCKQUOTE><CODE>
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<PRE>
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mkdir /var/spool/fax
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chmod 777 /var/spool/fax
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>
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<H3>The lock file.</H3>
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<P>The lock file (<CODE>/var/spool/fax/lock</CODE>) is being created with
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incorrect permissions, use the following command to set it correctly:
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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touch /var/spool/fax/lock ; chmod 644 /var/spool/fax/lock
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>
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<H3>The /dev/modem special file.</H3>
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<P>The efax program is expecting real device file at the <CODE>/dev/modem</CODE>
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and will not work with symbolic link, so create a device file
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with the same major and minor number as the <CODE>/dev/cua?</CODE> the is
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connected to the modem. The file should have the rw-rw-rw- mode to enable
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any user to use the fax software.
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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ls -lL /dev/modem
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rm /dev/modem
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mknod /dev/modem c Mj Mi
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chmod 666 /dev/modem
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>Mj is 5, and Mi is 64 for the cua0, 65 for cua1 and so on.
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For example (for cua1):
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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mknod /dev/modem c 5 65
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>
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<H3>The <CODE>/var/lock</CODE> directory.</H3>
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<P>change the mode at the <CODE>/var/lock</CODE> directory
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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chmod 1777 /var/lock
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>
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<P>
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<H2><A NAME="ss2.3">2.3 How do I use it, for the server ?</A>
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</H2>
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<P>You should use the fax printer using the -P option
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and the -J option with the fax number.
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<P>use one of the following lpr commands:
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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lpr -Pfax -J <Fax-Number> [file-names]
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any command | lpr -Pfax -J <Fax-Number>
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>
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<H2><A NAME="ss2.4">2.4 Where do I specify the target Fax number ?</A>
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</H2>
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<P>After the -J option.
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<H2><A NAME="ss2.5">2.5 How do I use it from other Unixes on the net ?</A>
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</H2>
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<P>Add the following entry into the <CODE>/etc/printcap</CODE> file and the client
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Linux systems, create the spool directory, and so on ...
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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fax:\
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:sd=/var/spool/fax:\
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:mx#0:\
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:sh:\
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:rm=host.domain:\
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:rp=fax:
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>add the name of the client hosts into the <CODE>/etc/hosts.lpd</CODE> on the
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fax server machine.
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<P>
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<P>use it as before.
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<P>
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<P>Note:
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<P>The header string that efax adds to the fax pages is not effected
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by the user name that sends the fax. (can be updated).
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<H2><A NAME="ss2.6">2.6 Caldera, LPRng users</A>
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</H2>
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<P> The LPRng printing management software is using a different method to handle the control file.
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<P>Thanks to Luca Montecchiani <m.luca@usa.net>, who found the problem and the solution.
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Here is an update to the <CODE>/usr/bin/fax</CODE> file. The following line replace the two simple <B>cfile=...</B> lines at lines 586,587
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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# Modified to work also with the LPRng package
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# Luca Montecchiani (08/11/97 m.luca@usa.net)
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if [ !-z "$CONTROL_FILE" ]
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then
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cfile=`cat tail -1 lock`
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cfile=`cat $cfile`
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else
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cfile=$CONTROL_FILE
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fi
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>
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<P>
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<HR>
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<A HREF="Fax-Server-3.html">Next</A>
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<A HREF="Fax-Server-1.html">Previous</A>
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<A HREF="Fax-Server.html#toc2">Contents</A>
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</BODY>
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</HTML>
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