命令行更改linux网卡IP地址、网关、DNS

网卡eth0    IP修改为 102.168.0.1   

ifconfig eth0 102.168.0.1 netmask 255.255.255.0

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网关修改为 102.168.0.254

route add default gw 102.168.0.254

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修改dns

echo "nameserver 202.202.202.20 ">> /etc/resolv.conf

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重启网络服务

/etc/rc.d/init.d/network restrart

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挂载光驱

1.在 mnt 目录下建立一个 cdrom目录

cd /mnt

mkdir cdrom

2.挂载光驱

mount -t iso9660 /dev/cdrom /mnt/cdrom

3.卸载光驱

umount /mnt/cdrom