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diff --git a/s5_auth.sh b/s5_auth.sh
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+#!/bin/bash
+# File: /root/s5_auth.sh
+# Package: deployscripts
+# Author: bgstack15
+# Startdate: 2016-08-02
+# Title: Template Script 5: AD Authorization
+# Purpose: To join AD for users and groups
+# History: 2016-08-02 given original headers
+# Usage: ./s5[tab][auth]
+# Reference:
+#    "\\example.com\staff\IT\PlatformServices\Linux\Templates\Building the Centos 7 Template.docx"
+# Improve:
+
+eval flavor=$( grep -iE "^\s*ID=" /etc/os-release 2>/dev/null | sed 's/^.*=//;' )
+if test -z "${flavor}"; then test "$( uname -s )" = "FreeBSD" && flavor=freebsd; fi
+
+thisuser="Bgstack15"
+
+case "${flavor}" in
+   centos|redhat|ubuntu|debian)
+      realm join example.com -U "${thisuser}" --install=/
+      /bin/cp -fp /etc/sssd/sssd.conf      /etc/sssd/sssd.conf.orig
+      /bin/cp -fp /etc/sssd/sssd.conf.example  /etc/sssd/sssd.conf
+      chmod 600   /etc/sssd/sssd.conf
+      
+      /bin/cp -fp /etc/krb5.conf       /etc/krb5.conf.orig
+      /bin/cp -fp /etc/krb5.conf.example   /etc/krb5.conf
+      chmod 644   /etc/krb5.conf
+      
+      sed -i -e '\|^sudoers:.*|h; ${x;s/sudoers://;{g;tF};a\' -e 'sudoers:\tfiles' -e '};:F;s/.*sudoers:.*/sudoers:\tfiles/g;' /etc/nsswitch.conf
+      
+      systemctl restart sssd.service
+      time id "${thisuser}" | fold -w 80 | head
+      
+      cat <<EOF > /etc/cron.d/keepadalive
+# File: /etc/cron.d/keepadalive
+# Purpose: keeps ad user authentication active and fast, by frequently asking for group info for a user
+*/5 * * * *  root  /usr/bin/id Bgstack15 >/dev/null 2>&1
+EOF
+      ;;
+   freebsd)
+      kinit "${thisuser}"
+      net ads join -k -U "${thisuser}"
+      kdestroy
+      kinit -k "$( hostname -s | tr 'a-z' 'A-Z')\$"
+      /root/updateval.sh /etc/crontab '^#.*\/kinithost.sh' '0,30\t*\t*\t*\t*\troot\t\/usr\/local\/bin\/kinithost\.sh' --apply
+      # enable services
+      /root/updateval.sh /etc/rc.conf '^samba_server_enable=.*' 'samba_server_enable="YES"' --apply
+      /root/updateval.sh /etc/rc.conf '^sssd_enable=.*' 'sssd_enable="YES"' --apply
+      # cannot start services regularly until a reboot, so onestart for now
+      service samba_server start
+      service sssd start
+      ;;
+   *)
+      echo "Cannot identify OS/flavor. Aborted." && exit 2
+      ;;
+esac