#!/bin/bash - 
#
#===================================================================================
#
#     Copyright Beijing Linx Technology Co., Ltd. 2010年09月21日
#
#      Filename:  conf_sshd
#
#         USAGE:  conf_sshd [interface]
#
#   Description:  configure sshd,to achieve remote installation 
#
#       Version:  0.1
#       Created:  2010年09月21日
#
#        Author:  Hu Gang 
#
#     ChangeLog:  1. 2010年09月21日  Create.
#
#===================================================================================
#

#===================================================================================
#Set variables
#===================================================================================
interface=
filepath=/etc/sysconfig/network-devices
#===================================================================================
#Performance function
#===================================================================================

usage(){
    echo "$0 [interface]"
    echo "The  name  of the interface.  This is usually a driver name followed "
    echo "by a unit number, for example eth0 for the first  Ethernet interface."
    echo "default interface is eth0"
}

startnetwork(){
    cp ${filepath}/{ifcfg.template,ifcfg-${interface}}
    echo 'enter your IP:'
    read ip
    echo 'enter your netmask:'
    read netmask
    echo 'enter your gateway:'
    read gateway
    sed -i "s%IPADDR=.*%IPADDR=${ip}%g"  ${filepath}/ifcfg-${interface}
    sed -i "s%NETMASK=.*%NETMASK=${netmask}%g"  ${filepath}/ifcfg-${interface}
    sed -i "s%GATEWAY=.*%GATEWAY=${gateway}%g"  ${filepath}/ifcfg-${interface}
    ifup ${interface}
}
    
startsshd(){
    sed -i "s%^#shm%shm%g" /etc/fstab
    mount -a
    mkdir -p /var/empty
    openssh-keygen 
    /usr/sbin/sshd -o X11Forwarding=yes
}

#===================================================================================
#Execution
#===================================================================================
    # the interface between the eth0 to eth9
if [ $# -eq 0 ]; then
    interface=eth0
elif [[ V$1 == Veth[0-9] ]]; then
    interface="$1"
else
    usage
    exit 1
fi

startnetwork
startsshd