#-*-shell-script-*- function verbose_show_message () { echo $(date "+%H:%M:%S") " ==================== " "$@" } function verbose_run_command () { echo $(date "+%H:%M:%S") " ========== running" "$@" "$@" echo $(date "+%H:%M:%S") " ==========" "$@" "returned with retcod=$?" } function pl_network_sanity_checks () { echo $(date "+%H:%M:%S") " ======================================== BEG SANITY CHECKS" for file in $(ls /etc/resolv.conf /etc/sysconfig/network-scripts/ifcfg-eth* ) ; do verbose_run_command cat $file done verbose_show_message Loaded modules verbose_run_command lsmod verbose_show_message Configured interfaces verbose_run_command ifconfig verbose_show_message Routing table verbose_run_command netstat -rn verbose_show_message Pinging google public DNS verbose_run_command ping -c 1 -w 5 8.8.8.8 # try to resolve this hostname as that's the one used for ntp dnss=$(grep '^nameserver' /etc/resolv.conf 2>/dev/null | awk '{print $2;}') if [ -z "$dnss" ] ; then # not too helpful, but.. verbose_show_message No server found in /etc/resolv.conf - Resolving hostname at the google public DNS verbose_run_command host -W 4 pool.ntp.org 8.8.8.8 else for dns in $dnss; do verbose_show_message Resolving hostname at $dns verbose_run_command host -W 4 pool.ntp.org $dns done fi echo $(date "+%H:%M:%S") " ======================================== END SANITY CHECKS" }