使用IP策略阻止指定端口的访问3389

2013/02/28 | 基本知识,运维 | Zhiming Zhang | 暂无评论 | 2972 views

步骤如下：一：创建安全策略 1）打开组策略管理界面：开始->管理工具->本地安全策略 2）右键“IP安全策略，在本地计算机”，选择”创建IP安全策略“，单击下一步，输入名称：”3389 Filter”, 点击下一步，把对勾去掉（激活默认相应规则），单击下一步，把对勾去掉（编辑属性），单击完成二：创建IP筛选表 1) ……

jsp记录传过来的select默认值

2013/02/28 | web | Zhiming Zhang | 暂无评论 | 2518 views

好吧，小白了，今天想了好半天这个，记得是用js 这个可以接受你request传过来的值，也可以是你从数据库中取得值，会自动从下拉框中选中该项。

document.getElementById("zd_exceptions_type").value='&lt;%=rs.getString("exceptions_type")%&gt;';

1	document.getElementById("zd_exceptions_type").value='<%=rs.getString("exceptions_type")%>';

时间：2013-02-28 21:30:45

upper limit on inotify watches reached! rsync报错

2013/02/25 | 基本知识,运维 | Zhiming Zhang | 暂无评论 | 2573 views

今天服务器报错如下： upper limit on inotify watches reached! 度娘谷姐之后： echo 81920 > /proc/sys/fs/inotify/max_user_watches 即可。原理：

# cat /proc/sys/fs/inotify/max_user_watches

1	# cat /proc/sys/fs/inotify/max_user_watches

时间：2013-02-25 19……

JSP页面SQL注入简单处理

2013/02/05 | web | Zhiming Zhang | 暂无评论 | 2774 views

方法如下：

public static String getFormatPara(String str) {
		String formatStr = "";
		if (str != null) {
			formatStr = str.replace("00:00:00.0", "").replace(":00.0", "").replace("'", "").replace("\"", "").replace("&lt;", "").replace("&gt;", "").replace("script", "").replace(" or ", "").replace(
					" and ", "").replace("-", "").replace("iframe", "").replace(" href ", "").replaceAll(".*([';]+|(--)+).*", " ").trim();
		}
		return formatStr;
	}

1

2

3

4

5

6

7

8

public static String getFormatPara(String str) {

String formatStr = "";

if (str != null) {

formatStr = str.replace("00:00:00.0", "").replace(":00.0", "").replace("'", "").replace("\"", "").replace("<", "").replace(">", "").replace("script", "").replace(" or ", "").replace(

" and ", "").replace("-", "").replace("iframe", "").replace(" href ", "").replaceAll(".*([';]+|(--)+).*", " ").trim();

}

return formatStr;

}

时间：2013-02-05 20:38:42

nginx下获取IP地址以及简单排错

2013/02/05 | 基本知识,运维 | Zhiming Zhang | 暂无评论 | 2559 views

方法如下：此处需要注意，nginx里边必须配置如下内容才可以 proxy_store off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header Host $host;

/**
 * 获取IP地址
 */
public static String getIp(HttpServletRequest request) {
String ip = request.getHeader("Cdn-Src-Ip");
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("X-Forwarded-For");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("Proxy-Client-IP");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("WL-Proxy-Client-IP");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_CLIENT_IP");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_X_FORWARDED_FOR");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("X-Real-IP");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_X_REAL_IP");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
if (ip.equals("0:0:0:0:0:0:0:1")) {
ip = "127.0.0.1";
}
return ip;
}

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

/**

* 获取IP地址

*/

public static String getIp(HttpServletRequest request) {

String ip = request.getHeader("Cdn-Src-Ip");