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cfgpre
#!/bin/bash # # Copyright (C) Microsoft Corporation. All rights reserved. # # Perform pre-configuration actions # #Variables retcode=0 distro="unknown" thisscript=${0} #Include utilities script source $(dirname ${0})/utilities DisableResolvConfUpdates(){ if [ -x "/sbin/dhclient-script" ] then if [ ${distro} = "DEBIAN" ] then dhfile="/etc/dhcp3/dhclient-enter-hooks.d/nodnsupdate" else if [ -d "/etc/dhcp" ] then dhfile="/etc/dhcp/dhclient-enter-hooks" else dhfile="/etc/dhclient-enter-hooks" fi fi WriteInfo "Creating dhclient enter hooks to disable resolv.conf overwrites in: ${dhfile}" ${thisscript} echo "make_resolv_conf() { echo 'dhclient-script resolv.conf updates disabled by SC VMM'; }" > ${dhfile} chmod 744 ${dhfile} fi if [ -e /etc/sysconfig/network/dhcp ] then WriteInfo "Setting DHCLIENT_MODIFY_RESOLV_CONF=no in /etc/sysconfig/network/dhcp" ${thisscript} sed -i".bak" 's/^DHCLIENT_MODIFY_RESOLV_CONF=.*/DHCLIENT_MODIFY_RESOLV_CONF="no"/g' /etc/sysconfig/network/dhcp fi if [ -x "/sbin/resolvconf" ] then WriteInfo "Disabling resolvconf updates to resolv.conf." ${thisscript} /sbin/resolvconf --disable-updates fi # template shouldn't have a dns search suffix, if one exists, remove it before applying specialization if [ -e /etc/resolv.conf ] then sed -i".bak" '/^search */d' /etc/resolv.conf fi } #Flush Udev rules if [ -e /etc/udev/rules.d/70-persistent-net.rules ] then WriteInfo "Deleting 70-persistent-net.rules" ${thisscript} cfgExec "rm /etc/udev/rules.d/70-persistent-net.rules --force" error "Failed to delete 70-persistent-net.rules" ${thisscript} fi if [ -e /etc/udev/rules.d/30-net_persistent_names.rules ] then WriteInfo "Deleting 30-net_persistent_names.rules" ${thisscript} cfgExec "rm 30-net_persistent_names.rules --force" error "Failed to delete 30-net_persistent_names.rules" ${thisscript} fi #Regenerate ssh host keys WriteInfo "Regenerating ssh host keys" ${thisscript} rm -rf /etc/ssh/ssh_host_*key* ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key -N '' ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key -N '' GetDistroFamily DisableResolvConfUpdates exit ${retcode}
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