Website domain name hijacked? How to effectively prevent and solve the problem of website domain name hijacking?
In the domain name circle, we often hear keywords such as "XX domain name is polluted", "XX domain name is hijacked", "XX domain name is blocked by the wall", etc. So what is domain name hijacking, and how can we reduce the risk of domain name hijacking? This question should be common sense for senior domain name investors, webmasters, and related practitioners, not a problem. But for some domain name investors who have just entered the industry, or some Internet start-ups and individual users, they may not know much about it. So, Fatty is here to chat with you today.
1. First of all, we need to know what "domain name hijacking" is.
The domain name (website) is hijacked, which means that when opening a website, an advertisement that does not belong to the website appears, or jumps to a page that does not belong to the website. Generally speaking, there are two methods: DNS hijacking and HTTP hijacking.
①DNS hijacking: It is to prevent you from entering the correct website during the visit. It's like when you take a taxi to the airport and he takes you to the train station, are you angry?
②HTTP hijacking: that is, the result of the visit remains the same, but a bunch of advertisements are stuffed for you on the website. It's like taking a taxi to the airport, and on the way to the airport, someone will hand you a small card, are you bothered?
If it only brings you mental distress, it’s fine. The most fearful thing is some more terrifying “payment hijacking”, which directly leads to the loss of users’ money and the loss of funds for website reputation damage, which is completely within the scope of criminal law.
2. Why is the website being hijacked?
This kind of situation mostly occurs on http websites, because http is an insecure plaintext transmission protocol, the website is easily destroyed, and the user's data information is also easy to be stolen. Users cause serious losses! Therefore, the future trend of information security is https, it is recommended to apply for an SSL certificate as soon as possible, and upgrade the http website to https to enhance the security of the website!
3. What should I do if the domain name has been hijacked?
Immediately change the domain name service provider and email password, use a password with high complexity and change it frequently.
Delete the DNS resolution that does not belong to you and restore the DNS settings. Turn off the pan-resolution of domain names, enter the domain name management background, click on our domain name to find the domain name resolution with *, delete it.
If you are using a third-party DNS service, you should immediately modify the account password of the third-party DNS server, lock the account information, and enable the account SMS and email reminders
See if the overall code of the website has been tampered with. This is to conduct a comprehensive investigation of your own website after solving the problem of domain name hijacking, so as to perfectly remove junk pages and ensure the security of the website.
Collect all illegally added pages and set 404, and use Baidu webmaster platform tools to submit dead links. Because the dead links of those websites are our spam pages, we must solve all these dead links. We can write that the website is maliciously attacked in the report content on the page.
If the domain name under this service provider is frequently hijacked, consider changing to a more secure and stable service provider. Competent websites can build their own DNS services and operate independently.
4. How to effectively reduce the risk of domain name hijacking?
Set complex passwords for domain name registrars and registered user mailboxes and change them frequently. Using a separate DNS service also requires the above settings for the password. Also be careful not to use the same username and password for multiple important registrations.
Set the domain name update to the locked state, and it is not allowed to modify the records through the DNS service provider website. After using this method, the domain name resolution needs to be done by the service provider, and the timeliness is poor.
Regularly check the domain name account information and domain name whois information, check the event manager, and clean up suspicious files existing in Web sites. The site is checked daily for unexpected pages. Check the website index and external link information in detail. If there is an abnormality, you must check it clearly.
Strengthen the anti-SQL injection function of the website. SQL injection is a method of writing content to the database by using the characteristics of SQL statements to obtain permissions.
Configure Web site folder and file operation permissions. In the Windows network operating system, use super administrator authority to configure permissions for files and folders of Web sites, most of which are set to read permissions, and write permissions should be used with caution. The possibility of being hijacked can be greatly reduced.
Digitally sign zone transfers and zone updates with transaction signatures.
Remove unnecessary services running on the DNS server, such as FTP.
Use firewall services on the network perimeter and DNS servers. Restrict access to those ports/services required for DNS functionality.
Spend some money in a professional DNS service provider to upgrade the protection level, increase the detection frequency, and effectively reduce the risk of being hijacked. Even if you are hijacked, you can find the hijacking warning at the first time, so as to carry out maintenance in time and avoid further expansion of losses.
In many cases, for domain name investors, the health of the domain name will greatly affect its own value, so taking protective measures for the domain name as soon as possible, effectively reducing the risk of the domain name, and strengthening the health of the domain name is equivalent to Add a security lock to your assets. For enterprises or webmasters, the domain name hijacking means that the website is hijacked, which affects the user experience, reduces user trust, and leads to loss of users and property losses.
Of course, Xiaopang doesn't know much about the more professional content of DNS, and the content expressed in the article is only some superficial common sense that the public knows. If you want to know more about domain name hijacking, domain name pollution, domain name wall, etc., you can go to relevant professional platforms to learn more. If you have relevant professionals, you can also leave a message below the article for popular science, thank you!