冷暖自知
->
是对是错,什么时候才能知道。要是神就好了,可以预知未来了。
最近在干嘛呢。。没魂。。
冷暖自知!
某校园网内大部分用户通过接入设备连接网关和DHCP服务器,动态获取IP地址。管理员通过在接入交换机上全面部署ARP攻击防御相关特性,形成保护屏障,过滤掉攻击报文。详细网络应用需求分析如下。
l 校园网用户分布在两个区域Host area1和Host area2,分别属于VLAN10和VLAN20,通过接入交换机Switch A和Switch B连接到网关Gateway,最终连接外网和DHCP。
l Host area1所在子网内拥有一台TFTP服务器,其IP地址为192.168.0.10/24,MAC地址为000d-85c7-4e00。
l 为防止仿冒网关、欺骗网关等ARP攻击形式,开启Switch A上VLAN10内、Switch B上VLAN20内ARP入侵检测功能,设置Switch A和Switch B的端口Ethernet1/0/1为ARP信任端口。
l 为防止ARP泛洪攻击,在Switch A和Switch B所有直接连接客户端的端口上开启ARP报文限速功能。同时,开启因ARP报文超速而被关闭的端口的状态自动恢复功能,并设置恢复时间间隔100秒。
图1-1 DHCP监控模式下的ARP攻击防御组网示意图
网上关于Veritas.Netbackup安装的内容太少了,好不容易找着一些。摘抄一下。供后来者参考。
附上VERITAS NetBackup6.0安装指南
下载地址:http://viyin.net/ur/veritas_netbackup.pdf
错误一:
[root@vi /]# /mnt/cdrom/install
VERITAS Installation Script
Copyright 1993 – 2005 VERITAS Software Corporation, All Rights Reserved.
Installing NetBackup Server Software
NOTE: To install only NetBackup Client software locally on this machine
or to load additional UNIX client software on this server, insert
the NetBackup UNIX Clients cdrom.
Do you wish to continue? [y,n] (y) y
The NetBackup and Media Manager software is built for use on LINUX hardware.
Do you want to install NetBackup and Media Manager files? [y,n] (y)
NetBackup and Media Manager are normally installed in /usr/openv.
The existing /usr/openv directory will be used for NetBackup and Media Manager.
Reading NetBackup files from /mnt/cdrom/linux/anb
gunzip: /mnt/cdrom/linux/anb/NetBackup.Z: No such file or directory
no data in archive
/mnt/cdrom/linux/catalog/anb/NB.file_trans failed. Aborting …
File /usr/openv/tmp/install_trace.1984 contains a trace of this install.
That file can be deleted after you are sure the install was successful.
阅读全文…
<?php
switch ($_SERVER["HTTP_HOST"])
{
case “www.viyin.net“:
define(‘WP_USE_THEMES’, true);
require(‘./wp-blog-header.php’);
break;
case “viyin.net”:
define(‘WP_USE_THEMES’, true);
require(‘./wp-blog-header.php’);
break;
case “www.viyin.cn“:
define(‘WP_USE_THEMES’, true);
require(‘./wp-blog-header.php’);
break;
查看内核版本号 下载相关的ntfs驱动
# uname -r
显示: 2.6.18-53.el5
去google搜索 kernel-module-ntfs-2.6.18-53.el5
在http://rpmfind.net/linux/rpm2html/search.php?query=kernel-module页面找到
kernel-module-ntfs-2.6.18-53.el5-2.1.27-0.rr.10.11.i686.rpm下载
mount -t ntfs /dev/hda1 /mnt
以上操作只有 read权限