Dport and sport in iptables first translate dport and sport meaning: dport: Destination Port sport: Source Port beginner iptables is easy to confuse, but I try to explain it to you in plain language. Dport and sport are literally easy to understand. One is the destination port for data arrival and the other is the port
1313. Some words about sporttime limit: 0.5 second
Memory limit: 16 MB
Ural doctors worry about the health of their youth very much. Special Investors showed that a lot of clever students instead of playing football, skating
Or bicycling had particle ipated in something like programming Olympus. Moreover, they call it sports programming! To sit near the monitor and think during 5 hours a day-is it a sport? To do it two times per year during the contes
Analysis of dport and sport in iptables
First, let's talk about the concepts of dport and sport:
Dport -------- destination port
Sport -------- Source Port
It is important to note that it is related to the flow behavior of our data packets, that is, the INPUT or OUTPUT.
For example, iptables-a input-p tcp -- dport 80-j ACCEPT here is the INPUT parameter,
Analysis of dport and sport and iptablesdport in iptables
First, let's talk about the concepts of dport and sport:
Dport -------- destination port
Sport -------- Source Port
It is important to note that it is related to the flow behavior of our data packets, that is, the INPUT or OUTPUT.
For example, iptables-a input-p tcp -- dport 80-j ACCEPT here is the INPUT
()Getvisibleorigin (); -width_l =origin.x; -Width_r = origin.x +Visiblesize.width; the -Ball =drawnode::create (); -Ball--Drawdot (VEC2 (0,0),4, color4f (1.0f,1.0f,1.0f,1.0f)); - + addChild (ball); -Ball--SetPosition (origin.x + visiblesize.width/2, ORIGIN.Y + visiblesize.height/2); + A //action-related motion we are generally not used to do game games, generally used to make the game change effect. Because the action is not very good to show the effect of the game at //dot-r
As a result, if I did not dance in the evening after work, I went swimming in the company's swimming pool. I finally went swimming with my father in the nearby Yucheng gongshu swimming pool. I have been swimming frog for a long time, and I have also used it to swim through sun and moon pools. But in reality, I do not like swimming very much because swimming is a kind of human activity, compared with those sports of the ball, it is really boring. I will go swimming again recently. First, I want t
This is a function that calculates the number of days from January 01, 2000 to a specified day
(end of calculation) date format: YYYY-MM-DD
Calculate the number of days from January 01, 2000 to a day
function Cal_start2end ($end _day, $start _day)
{
$start _day=ereg_replace ("-", "", $start _day);
$end _day=ereg_replace ("-", "", $end _day);
if ($end _day>= $start _day)
{//Due date is greater than st
can be entered.
The last step is to clean the footprints. We recommend that you use Xiao Rong's cleaniislog for convenience. For usage instructions, see! Remember, the first choice for intrusion into NT is absolutely 139, NETBIOS
In addition, you can use the 2000 Built-in Computer Management to connect to a computer. I will explain the other methods here:
The input method is basically out of the box ~~ However, if you scan a large number of bots, it
For more information about bugs fixed in SQL Server 2000 Service Pack 4, click the following article number to view the article in the Microsoft Knowledge Base:314128 FIX: When an RPC call is performed, Access with conflicting values includes an invalid parameter value of one position. 317989 FIX: Sqlakw32.dll may be damaged. SQL statement 319477 FIX: A very large number of user table AWE systems may cause BPool: Map error 328551 used to FIX the tempd
Window Windows 2000 log files usually have application logs, security logs, system logs, DNS server logs, FTP logs, www logs, and so on, depending on the services that the server opens. When we use streamer detection, such as IPC detection, will be in the security log quickly recorded streamer detection in the user name, time, etc., with FTP detection, will immediately in the FTP log note IP, time, the user name and password used to detect and so on.
users have been trying to log on to the system, changed four times username and password to be successful, the administrator immediately can know the administrator's intrusion time, IP address and the user name of the probe, such as the intruder in the end is the user name into the administrator, Consider changing the password for this username, or renaming the administrator user.
www log
WWW service the same as the FTP service, the resulting log is also in the%SYSTEMROOT%\SYSTEM32\LOGFILES\W
: Http://www.5dmail.net/down/list.asp? Id = 927
In the deployment section of the Exchange 2000 server upgrade series, you will learn how to implement the previously planned changes. This part of content is very practical. It will step by step lead you to complete a series of operations, first configure Windows 2000 Active Directory, and finally evaluate whether the deployment project is successful.
The pla
This document assumes that Exchange 2000 accepts incoming messages from the Internet, searches for matched recipients in the Exchange organization, and then forwards the emails to the external mail system. The receiving system may also perform the same operation: It can search for matched recipients and then forward the email to the third email system. Remember: The last system in this chain must have management rights to this domain. That is to say,
Question: How to manually delete the default instance, named instance, or virtual instance of SQL Server 2000
[Keyword ]:
Web SQL, server, 2000 How to manually delete SQL Server 2000 default instances, named instances, or virtual instances
This section describes how to reinstall SQL Server.
Program System preparation.
The correct method for deleting Micro
It seems that you have decided to upgrade from SQL Server 2000 to SQL 2005.
You may have installed an instance of SQL Server 2000 in your desktop and test environment and want to upgrade it appropriately. Or you might just want to install a new instance of SQL Server 2005. This article will focus on the problems you may encounter when installing a new instance, and this article will analyze the options for
How to solve the connection problem in SQL Server 2000
Applicable
Important: This article contains information about modifying the registry. Before modifying the registry, you must back up the registry and know how to restore the Registry in case of a problem. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Microsoft Windows registry d
Computer security not only protects local computer data, but also protects data on the network. An excellent operating system can identify the persons who attempt to access computer resources, prevent users from accessing specific resources improperly, and provide users with simple and effective methods to set and maintain computer security. At present, PC users often use Windows. Compared with previous versions, Windows 2000 based on the NT platform
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