Thanks to Philip and others I now have my ISP style config built and
therefore am posting the final configuration fragments to the list in
-case anyone else wants to do a similar thing
+case anyone else wants to do a similar thing.
+
+Date: Mon, 26 Jul 1999 00:02:14 +0100
+From: David M Walker <davidw@datamgmt.com>
+
+Some time ago I posted ISP nstyle configuration C011 and continue
+to get mails of the form:
+
+> But can you please explain me how do the clients get their
+> email if it's placed in many directories and the password
+> are stored in "private" passwd files. The popper is not able
+> to understand it. What approach do you use?
+
+The way I approach this is described after the configuration.
+
######################################################################
qualify_preserve_domain
end
+######################################################################
+
+
+Our domains each have a unique last number from their IP address
+in the form x.y.z.222 etc. but a simple serial number would do.
+We prefix this domain number with an 'm' because it's a bad thing
+to create a username that starts with a digit. The 'm' stands for
+nothing special - originally I think it meant mail.
+
+As a result we get a username of the form m222.dwalker
+
+We now use the shell script below to create the user, setup
+symbolic links from /var/spool/mail/m222.dwalker to the user's
+account directory etc. This is either called from a web page via
+ssl or an ssh login.
+
+Therefore mail sent to dwalker@datamgmt.com will be accessable
+from a pop or imap account called m222.dwalker and uniqueness
+across multiple domains is preserved.
+
+
+#!/bin/ksh -
+
+PATH=${PATH}:/usr/sbin; export PATH
+
+# General Configuration
+export PROGNAME=`basename $0`
+export POPGID=198
+export SHELL=/bin/false
+export SYSPASS=/etc/passwd
+export SYSSHAD=/etc/shadow
+export PREFIX=m
+
+# Global Parameters
+export DOMAIN=""
+export DOMGID=""
+export DOMPASS=""
+export DOMROOT=""
+export DOMUID=""
+export DOMUSER=""
+export HOMEDIR=""
+export MAILBOX=""
+export MAILLNK=""
+export POPUSER=""
+export STRNGTST=""
+
+fn_check_exit()
+{
+ESTATUS=$1
+if [ "${ESTATUS}" != 0 ]
+then
+ echo "Command exited with non-zero value (${ESTATUS})"
+ exit ${ESTATUS}
+else
+ echo "Command successful"
+fi
+}
+
+fn_getdomain()
+{
+DOMUID=$(id -u ${USER})
+DOMGRP=${USER}
+. getdomain ${DOMGRP}
+
+# Derived Variables
+DOMROOT=/monza/clients/${DOMAIN}
+POPUSER=${PREFIX}${DOMUID}.${DOMUSER}
+DOMGID=${DOMUID}
+DOMPASS=${DOMROOT}/etc/passwd
+HOMEDIR=${DOMROOT}/users/${DOMUSER}
+MAILBOX=${DOMROOT}/mail/${DOMUSER}
+MAILLNK=/var/spool/mail/${POPUSER}
+}
+
+fn_mkpasswd()
+{
+STRNGTST=`grep "^${POPUSER}:" ${SYSPASS}`
+if [ -z "${STRNGTST}" ]
+then
+ echo "Making ${SYSPASS} entry"
+ useradd -u ${DOMUID} -g ${DOMGRP} -d ${HOMEDIR} -s ${SHELL} -m -n ${POPUSER}
+ fn_check_exit $?
+ #echo "${POPUSER}:x:${DOMUID}:${POPGID}::${HOMEDIR}:${SHELL}" >> ${SYSPASS}
+else
+ echo "User ${POPUSER} already in ${SYSPASS}"
+fi
+}
+
+fn_mkdomuser()
+{
+STRNGTST=`grep "^${DOMUSER}:" ${DOMPASS}`
+if [ -z "${STRNGTST}" ]
+then
+ echo "Making ${DOMPASS} entry"
+ echo "${DOMUSER}:x:${DOMUID}:${DOMGID}::${HOMEDIR}:" >> ${DOMPASS}
+else
+ echo "User ${DOMUSER} already in ${DOMPASS}"
+fi
+}
+
+fn_mkmaildir()
+{
+if [ ! -e ${HOMEDIR}/mail ]
+then
+ echo "Making ${HOMEDIR}/mail"
+ mkdir ${HOMEDIR}/mail
+ fn_check_exit $?
+ echo "Setting permissions on ${HOMEDIR}"
+ chown ${DOMUID}:${DOMGID} ${HOMEDIR}
+ fn_check_exit $?
+fi
+}
+
+fn_creatembox()
+{
+if [ ! -e ${MAILBOX} ]
+then
+ echo "Creating empty mailbox"
+ touch ${MAILBOX}
+ fn_check_exit $?
+fi
+echo "Setting ownership"
+chown ${DOMUID}.mail ${MAILBOX}
+fn_check_exit $?
+echo "Setting permissions"
+chmod 660 ${MAILBOX}
+fn_check_exit $?
+}
+
+fn_dellink()
+{
+if [ -e ${MAILLNK} ]
+then
+ if [ -L ${MAILLNK} ]
+ then
+ echo "Removing old link"
+ rm ${MAILLNK}
+ fn_check_exit $?
+ else
+ echo "${MAILLNK} is not a link - moving to .old"
+ mv ${MAILLNK} ${MAILLNK}.old
+ fn_check_exit $?
+ fi
+fi
+}
+
+fn_mklink()
+{
+if [ -e ${MAILLNK} ]
+then
+ if [ -L ${MAILLNK} ]
+ then
+ echo "Removing old link"
+ rm ${MAILLNK}
+ fn_check_exit $?
+ else
+ echo "File ${MAILLNK} exists moving to .old"
+ mv ${MAILLNK} ${MAILLNK}.old
+ fn_check_exit $?
+ fi
+fi
+echo "Creating a new link"
+ln -s ${MAILBOX} ${MAILLNK}
+fn_check_exit $?
+}
+
+fn_setpasswd()
+{
+echo "Set password for ${DOMUSER}"
+passwd ${POPUSER}
+fn_check_exit $?
+}
+
+fn_delpopuser()
+{
+fn_getdomain
+fn_delpass
+fn_dellink
+echo ""
+echo "Pop account deleted for ${POPUSER}"
+echo "Files in the domain user and mail directories must be deleted manually"
+echo "The entry in the domain passwd file is also redundant"
+echo ""
+}
+
+fn_connect()
+{
+ echo ""
+ echo "E-Mail Address: ${DOMUSER}@${DOMAIN}"
+ echo "Pop username: ${POPUSER}"
+ echo "Pop password: ********"
+ echo "Inbound mail: mail.${DOMAIN}"
+ echo "Inbound port: 110"
+ echo "Outbound mail: mail.${DOMAIN}"
+ echo "Outbound mail: 25"
+ echo ""
+}
+
+fn_addpopuser()
+{
+fn_getdomain
+fn_mkpasswd
+fn_mkmaildir
+fn_mkdomuser
+fn_creatembox
+fn_mklink
+fn_setpasswd
+fn_connect
+}
+
+fn_setuserpass()
+{
+fn_getdomain
+fn_setpasswd
+fn_connect
+}
+
+fn_usage()
+{
+ echo "Usage: ${PROGNAME} -a username [add a user]"
+ echo " ${PROGNAME} -c username [change a users password]"
+ echo " ${PROGNAME} -d username [delete a user]"
+ echo " ${PROGNAME} -l [lists all user]"
+ echo ""
+ echo "There is also a -n option to set the prefix to null rather"
+ echo "than m for backward compatiblity with earlier versions"
+ echo "Note: -n must proceed any other parameters"
+ exit 1
+}
+
+fn_delpass()
+{
+STRNGTST=`grep "^${POPUSER}:" ${SYSPASS}`
+if [ -n "${STRNGTST}" ]
+then
+userdel ${POPUSER}
+fn_check_exit $?
+else
+ echo "User ${POPUSER} already deleted from ${SYSPASS}"
+fi
+}
+
+fn_listpops()
+{
+ fn_getdomain
+ echo "Username\t/etc/passwd\t/etc/shadow\tLocal Password"
+ for POPUSER in `grep "^${PREFIX}${DOMUID}\." ${SYSPASS} | cut -d: -f1 -s`
+ do
+ echo "${POPUSER}\tOK\t\t\c"
+ OKS=`grep "^${POPUSER}:" ${SYSSHAD}`
+ if [ -n "${OKS}" ]
+ then
+ echo "OK\t\t\c"
+ else
+ echo "Bad\t\t\c"
+ fi
+ DUS=`echo ${POPUSER} | cut -d"." -f2 -s`
+ OKD=`grep "^${DUS}:" ${DOMPASS}`
+ if [ -n "${OKD}" ]
+ then
+ echo "OK\t\c"
+ else
+ echo "Bad\t\c"
+ fi
+ echo ""
+ done
+}
+
+DONE=""
+while getopts a:c:d:ln PARAM
+do
+ case ${PARAM} in
+ a) DOMUSER=${OPTARG}
+ fn_addpopuser
+ DONE=TRUE
+ ;;
+ c) DOMUSER=${OPTARG}
+ fn_setuserpass
+ DONE=TRUE
+ ;;
+ d) DOMUSER=${OPTARG}
+ fn_delpopuser
+ DONE=TRUE
+ ;;
+ l) fn_listpops
+ DONE=TRUE
+ ;;
+ n) PREFIX=""
+ POPUSER=${PREFIX}${DOMUID}.${DOMUSER}
+ ;;
+ ?) fn_usage
+ esac
+done
+shift $(($OPTIND -1))
+
+if [ -z "${DONE}" ]
+then
+ fn_usage
+fi
git://git.exim.org / exim-website.git / blobdiff