Intrusion detection system source code how to view

How Hackers Find Network Security Vulnerabilities

Computer hackers always want to know as much information as possible, such as: whether or not they are connected to the Internet, the architecture of their internal network, and the status of their security precautions. Once those experienced hackers have their eyes on your network system, the first thing they will do is to analyze your system. This is why we say that applying the “rules of the game” of hackers is the best way to deal with them. Looking at network security through the eyes of a hacker often reveals many potential security holes. Not only does this provide a different perspective on your network systems, but it also allows you to look at your enemy, the hacker, to guide you in taking the most effective network security measures. Below, we look at the process of analyzing a network system. This process uses open source tools and related technologies. Gathering Information with Open Source Tools First, log on to the Whois.com website to look up your organization’s domain name, and the search results will show you the DNS servers used by your network system. Then, use some software tools, such as nslookup, to dig further into the details of the DNS servers. Next, it’s time to turn your attention to your organization’s public Web site and any anonymous FTP servers you can find. Note that the main information you need to focus on now are: domain names, IP addresses of those domains, all information about intrusion detection systems, usernames, phone numbers, email addresses, physical locations, published security policies, business partner profiles, and information about newly acquired businesses. Additionally, during your search operations described above, be sure to pay special attention to what information is and is not displayed on these sites. Better yet, deposit these web pages into your computer and then open them with a notepad program to view the source code of the web pages. In general, viewing the source code of a web page can be a wealth of information, which is why some sites intentionally block the source code from viewers. In the source code file, you may be able to learn about the way the site developer built the site: the type and version of software they used, the architecture of the site and the pages, and sometimes even find out some of the webmaster’s personal information. The sites of business partners or new acquisitions are often key points for hackers. These sites are the best breakthroughs to indirectly invade the target site, which can be easily ignored by the webmasters and create a lot of opportunities for the hackers. If you are not vigilant enough in this regard, careless, very rashly a new business partner’s Web site and your own site to link up, often lead to very serious consequences, to your site to bring great security threats. In such cases, security is more important than business issues, and must ensure safe operation. Looking at the Network from the Outside With the above information gathered, you can begin to look at your network. You can utilize the path tracing command to look at your network topology diagram and access control related settings. You will get a lot of information about the characteristics of the switches that are used to bypass the access control devices. Note that the results of the commands vary depending on the operating system you are using; UNIX operating systems use UDP and optionally ICMP, while Windows operating systems respond to requests (pings) with ICMP by default. You can also use open source tools to manage a large number of pingsweeps, perform TCP/UDP protocol scans, and OS probes. The purpose of this is to understand, in the eyes of those external visitors, the operation of your network system and some basic appearance, characteristics. Therefore, you need to test your network system, which ports and services are open or available to external visitors, external visitors can learn whether you use the operating system and some programs, extremely version information. In short, you need to find out what ports or services are open to external visitors and what basic information about your site is being leaked. Before you start the above, you have to get enough authorization to access the whole network system and examine and analyze it. Never share the information you learn with unsuspecting people. Remember: security is an implementation process, not just a technology.

How to view the source code of a web page?

1, open any website.

2, as shown in the picture click on the upper right corner of the three horizontal bar button.

3, click on “Tools”.

4, click on “View Source”.

5, as shown in the figure, we can easily view the source code of the site.

6, if you want to close the page source code, just click on the upper left corner of the “Back” button.

Note:

URLs locate resources by providing an abstract identifier for the location of the resource. After the system locates a resource, it may perform a variety of operations on it, which can be abstracted into the following words: access, update, replace, and discover attributes. In general, only the access method is the only one that needs to be described in any URL scheme.

How to see the source code of a website, how to see the web page source code

[Happy]Hello, view the source code of the web page specific steps:

1, in the computer desktop click Chrome icon, open the browser.

2, in the address bar, enter the URL we want to view.

3, in the page, right-click, select View Source Code, you can view the information we want.

4, we can also directly in the address bar above the input view-source: we want to view the URL can also view the source code.

5, we can also click on the toolbar below the tool, select view source code, you can also view the information.

Questions

What is dns

Dns is the domain name system. Domain name resolution of human-readable domain names (e.g., ) into machine-readable IP addresses